diff options
Diffstat (limited to 'diff.c')
| -rw-r--r-- | diff.c | 1706 |
1 files changed, 1247 insertions, 459 deletions
@@ -2,6 +2,7 @@ * Copyright (C) 2005 Junio C Hamano */ #include "cache.h" +#include "config.h" #include "tempfile.h" #include "quote.h" #include "diff.h" @@ -15,10 +16,12 @@ #include "userdiff.h" #include "submodule-config.h" #include "submodule.h" +#include "hashmap.h" #include "ll-merge.h" #include "string-list.h" #include "argv-array.h" #include "graph.h" +#include "packfile.h" #ifdef NO_FAST_WORKING_DIRECTORY #define FAST_WORKING_DIRECTORY 0 @@ -27,10 +30,11 @@ #endif static int diff_detect_rename_default; -static int diff_indent_heuristic; /* experimental */ +static int diff_indent_heuristic = 1; static int diff_rename_limit_default = 400; static int diff_suppress_blank_empty; static int diff_use_color_default = -1; +static int diff_color_moved_default; static int diff_context_default = 3; static int diff_interhunk_context_default; static const char *diff_word_regex_cfg; @@ -55,6 +59,14 @@ static char diff_colors[][COLOR_MAXLEN] = { GIT_COLOR_YELLOW, /* COMMIT */ GIT_COLOR_BG_RED, /* WHITESPACE */ GIT_COLOR_NORMAL, /* FUNCINFO */ + GIT_COLOR_BOLD_MAGENTA, /* OLD_MOVED */ + GIT_COLOR_BOLD_BLUE, /* OLD_MOVED ALTERNATIVE */ + GIT_COLOR_FAINT, /* OLD_MOVED_DIM */ + GIT_COLOR_FAINT_ITALIC, /* OLD_MOVED_ALTERNATIVE_DIM */ + GIT_COLOR_BOLD_CYAN, /* NEW_MOVED */ + GIT_COLOR_BOLD_YELLOW, /* NEW_MOVED ALTERNATIVE */ + GIT_COLOR_FAINT, /* NEW_MOVED_DIM */ + GIT_COLOR_FAINT_ITALIC, /* NEW_MOVED_ALTERNATIVE_DIM */ }; static NORETURN void die_want_option(const char *option_name) @@ -80,6 +92,22 @@ static int parse_diff_color_slot(const char *var) return DIFF_WHITESPACE; if (!strcasecmp(var, "func")) return DIFF_FUNCINFO; + if (!strcasecmp(var, "oldmoved")) + return DIFF_FILE_OLD_MOVED; + if (!strcasecmp(var, "oldmovedalternative")) + return DIFF_FILE_OLD_MOVED_ALT; + if (!strcasecmp(var, "oldmoveddimmed")) + return DIFF_FILE_OLD_MOVED_DIM; + if (!strcasecmp(var, "oldmovedalternativedimmed")) + return DIFF_FILE_OLD_MOVED_ALT_DIM; + if (!strcasecmp(var, "newmoved")) + return DIFF_FILE_NEW_MOVED; + if (!strcasecmp(var, "newmovedalternative")) + return DIFF_FILE_NEW_MOVED_ALT; + if (!strcasecmp(var, "newmoveddimmed")) + return DIFF_FILE_NEW_MOVED_DIM; + if (!strcasecmp(var, "newmovedalternativedimmed")) + return DIFF_FILE_NEW_MOVED_ALT_DIM; return -1; } @@ -96,18 +124,18 @@ static int parse_dirstat_params(struct diff_options *options, const char *params for (i = 0; i < params.nr; i++) { const char *p = params.items[i].string; if (!strcmp(p, "changes")) { - DIFF_OPT_CLR(options, DIRSTAT_BY_LINE); - DIFF_OPT_CLR(options, DIRSTAT_BY_FILE); + options->flags.dirstat_by_line = 0; + options->flags.dirstat_by_file = 0; } else if (!strcmp(p, "lines")) { - DIFF_OPT_SET(options, DIRSTAT_BY_LINE); - DIFF_OPT_CLR(options, DIRSTAT_BY_FILE); + options->flags.dirstat_by_line = 1; + options->flags.dirstat_by_file = 0; } else if (!strcmp(p, "files")) { - DIFF_OPT_CLR(options, DIRSTAT_BY_LINE); - DIFF_OPT_SET(options, DIRSTAT_BY_FILE); + options->flags.dirstat_by_line = 0; + options->flags.dirstat_by_file = 1; } else if (!strcmp(p, "noncumulative")) { - DIFF_OPT_CLR(options, DIRSTAT_CUMULATIVE); + options->flags.dirstat_cumulative = 0; } else if (!strcmp(p, "cumulative")) { - DIFF_OPT_SET(options, DIRSTAT_CUMULATIVE); + options->flags.dirstat_cumulative = 1; } else if (isdigit(*p)) { char *end; int permille = strtoul(p, &end, 10) * 10; @@ -228,12 +256,44 @@ int git_diff_heuristic_config(const char *var, const char *value, void *cb) return 0; } +static int parse_color_moved(const char *arg) +{ + switch (git_parse_maybe_bool(arg)) { + case 0: + return COLOR_MOVED_NO; + case 1: + return COLOR_MOVED_DEFAULT; + default: + break; + } + + if (!strcmp(arg, "no")) + return COLOR_MOVED_NO; + else if (!strcmp(arg, "plain")) + return COLOR_MOVED_PLAIN; + else if (!strcmp(arg, "zebra")) + return COLOR_MOVED_ZEBRA; + else if (!strcmp(arg, "default")) + return COLOR_MOVED_DEFAULT; + else if (!strcmp(arg, "dimmed_zebra")) + return COLOR_MOVED_ZEBRA_DIM; + else + return error(_("color moved setting must be one of 'no', 'default', 'zebra', 'dimmed_zebra', 'plain'")); +} + int git_diff_ui_config(const char *var, const char *value, void *cb) { if (!strcmp(var, "diff.color") || !strcmp(var, "color.diff")) { diff_use_color_default = git_config_colorbool(var, value); return 0; } + if (!strcmp(var, "diff.colormoved")) { + int cm = parse_color_moved(value); + if (cm < 0) + return -1; + diff_color_moved_default = cm; + return 0; + } if (!strcmp(var, "diff.context")) { diff_context_default = git_config_int(var, value); if (diff_context_default < 0) @@ -290,9 +350,6 @@ int git_diff_ui_config(const char *var, const char *value, void *cb) return 0; } - if (git_diff_heuristic_config(var, value, cb) < 0) - return -1; - if (!strcmp(var, "diff.wserrorhighlight")) { int val = parse_ws_error_highlight(value); if (val < 0) @@ -348,8 +405,8 @@ int git_diff_basic_config(const char *var, const char *value, void *cb) return 0; } - if (starts_with(var, "submodule.")) - return parse_submodule_config_option(var, value); + if (git_diff_heuristic_config(var, value, cb) < 0) + return -1; return git_default_config(var, value, cb); } @@ -405,11 +462,9 @@ static struct diff_tempfile { * If this diff_tempfile instance refers to a temporary file, * this tempfile object is used to manage its lifetime. */ - struct tempfile tempfile; + struct tempfile *tempfile; } diff_temp[2]; -typedef unsigned long (*sane_truncate_fn)(char *line, unsigned long len); - struct emit_callback { int color_diff; unsigned ws_rule; @@ -417,7 +472,6 @@ struct emit_callback { int blank_at_eof_in_postimage; int lno_in_preimage; int lno_in_postimage; - sane_truncate_fn truncate; const char **label_path; struct diff_words_data *diff_words; struct diff_options *opt; @@ -559,68 +613,668 @@ static void emit_line(struct diff_options *o, const char *set, const char *reset emit_line_0(o, set, reset, line[0], line+1, len-1); } -static int new_blank_line_at_eof(struct emit_callback *ecbdata, const char *line, int len) +enum diff_symbol { + DIFF_SYMBOL_BINARY_DIFF_HEADER, + DIFF_SYMBOL_BINARY_DIFF_HEADER_DELTA, + DIFF_SYMBOL_BINARY_DIFF_HEADER_LITERAL, + DIFF_SYMBOL_BINARY_DIFF_BODY, + DIFF_SYMBOL_BINARY_DIFF_FOOTER, + DIFF_SYMBOL_STATS_SUMMARY_NO_FILES, + DIFF_SYMBOL_STATS_SUMMARY_ABBREV, + DIFF_SYMBOL_STATS_SUMMARY_INSERTS_DELETES, + DIFF_SYMBOL_STATS_LINE, + DIFF_SYMBOL_WORD_DIFF, + DIFF_SYMBOL_STAT_SEP, + DIFF_SYMBOL_SUMMARY, + DIFF_SYMBOL_SUBMODULE_ADD, + DIFF_SYMBOL_SUBMODULE_DEL, + DIFF_SYMBOL_SUBMODULE_UNTRACKED, + DIFF_SYMBOL_SUBMODULE_MODIFIED, + DIFF_SYMBOL_SUBMODULE_HEADER, + DIFF_SYMBOL_SUBMODULE_ERROR, + DIFF_SYMBOL_SUBMODULE_PIPETHROUGH, + DIFF_SYMBOL_REWRITE_DIFF, + DIFF_SYMBOL_BINARY_FILES, + DIFF_SYMBOL_HEADER, + DIFF_SYMBOL_FILEPAIR_PLUS, + DIFF_SYMBOL_FILEPAIR_MINUS, + DIFF_SYMBOL_WORDS_PORCELAIN, + DIFF_SYMBOL_WORDS, + DIFF_SYMBOL_CONTEXT, + DIFF_SYMBOL_CONTEXT_INCOMPLETE, + DIFF_SYMBOL_PLUS, + DIFF_SYMBOL_MINUS, + DIFF_SYMBOL_NO_LF_EOF, + DIFF_SYMBOL_CONTEXT_FRAGINFO, + DIFF_SYMBOL_CONTEXT_MARKER, + DIFF_SYMBOL_SEPARATOR +}; +/* + * Flags for content lines: + * 0..12 are whitespace rules + * 13-15 are WSEH_NEW | WSEH_OLD | WSEH_CONTEXT + * 16 is marking if the line is blank at EOF + */ +#define DIFF_SYMBOL_CONTENT_BLANK_LINE_EOF (1<<16) +#define DIFF_SYMBOL_MOVED_LINE (1<<17) +#define DIFF_SYMBOL_MOVED_LINE_ALT (1<<18) +#define DIFF_SYMBOL_MOVED_LINE_UNINTERESTING (1<<19) +#define DIFF_SYMBOL_CONTENT_WS_MASK (WSEH_NEW | WSEH_OLD | WSEH_CONTEXT | WS_RULE_MASK) + +/* + * This struct is used when we need to buffer the output of the diff output. + * + * NEEDSWORK: Instead of storing a copy of the line, add an offset pointer + * into the pre/post image file. This pointer could be a union with the + * line pointer. By storing an offset into the file instead of the literal line, + * we can decrease the memory footprint for the buffered output. At first we + * may want to only have indirection for the content lines, but we could also + * enhance the state for emitting prefabricated lines, e.g. the similarity + * score line or hunk/file headers would only need to store a number or path + * and then the output can be constructed later on depending on state. + */ +struct emitted_diff_symbol { + const char *line; + int len; + int flags; + enum diff_symbol s; +}; +#define EMITTED_DIFF_SYMBOL_INIT {NULL} + +struct emitted_diff_symbols { + struct emitted_diff_symbol *buf; + int nr, alloc; +}; +#define EMITTED_DIFF_SYMBOLS_INIT {NULL, 0, 0} + +static void append_emitted_diff_symbol(struct diff_options *o, + struct emitted_diff_symbol *e) { - if (!((ecbdata->ws_rule & WS_BLANK_AT_EOF) && - ecbdata->blank_at_eof_in_preimage && - ecbdata->blank_at_eof_in_postimage && - ecbdata->blank_at_eof_in_preimage <= ecbdata->lno_in_preimage && - ecbdata->blank_at_eof_in_postimage <= ecbdata->lno_in_postimage)) - return 0; - return ws_blank_line(line, len, ecbdata->ws_rule); + struct emitted_diff_symbol *f; + + ALLOC_GROW(o->emitted_symbols->buf, + o->emitted_symbols->nr + 1, + o->emitted_symbols->alloc); + f = &o->emitted_symbols->buf[o->emitted_symbols->nr++]; + + memcpy(f, e, sizeof(struct emitted_diff_symbol)); + f->line = e->line ? xmemdupz(e->line, e->len) : NULL; } -static void emit_line_checked(const char *reset, - struct emit_callback *ecbdata, - const char *line, int len, - enum color_diff color, - unsigned ws_error_highlight, - char sign) +struct moved_entry { + struct hashmap_entry ent; + const struct emitted_diff_symbol *es; + struct moved_entry *next_line; +}; + +static int moved_entry_cmp(const struct diff_options *diffopt, + const struct moved_entry *a, + const struct moved_entry *b, + const void *keydata) +{ + return !xdiff_compare_lines(a->es->line, a->es->len, + b->es->line, b->es->len, + diffopt->xdl_opts); +} + +static struct moved_entry *prepare_entry(struct diff_options *o, + int line_no) +{ + struct moved_entry *ret = xmalloc(sizeof(*ret)); + struct emitted_diff_symbol *l = &o->emitted_symbols->buf[line_no]; + + ret->ent.hash = xdiff_hash_string(l->line, l->len, o->xdl_opts); + ret->es = l; + ret->next_line = NULL; + + return ret; +} + +static void add_lines_to_move_detection(struct diff_options *o, + struct hashmap *add_lines, + struct hashmap *del_lines) +{ + struct moved_entry *prev_line = NULL; + + int n; + for (n = 0; n < o->emitted_symbols->nr; n++) { + struct hashmap *hm; + struct moved_entry *key; + + switch (o->emitted_symbols->buf[n].s) { + case DIFF_SYMBOL_PLUS: + hm = add_lines; + break; + case DIFF_SYMBOL_MINUS: + hm = del_lines; + break; + default: + prev_line = NULL; + continue; + } + + key = prepare_entry(o, n); + if (prev_line && prev_line->es->s == o->emitted_symbols->buf[n].s) + prev_line->next_line = key; + + hashmap_add(hm, key); + prev_line = key; + } +} + +static int shrink_potential_moved_blocks(struct moved_entry **pmb, + int pmb_nr) +{ + int lp, rp; + + /* Shrink the set of potential block to the remaining running */ + for (lp = 0, rp = pmb_nr - 1; lp <= rp;) { + while (lp < pmb_nr && pmb[lp]) + lp++; + /* lp points at the first NULL now */ + + while (rp > -1 && !pmb[rp]) + rp--; + /* rp points at the last non-NULL */ + + if (lp < pmb_nr && rp > -1 && lp < rp) { + pmb[lp] = pmb[rp]; + pmb[rp] = NULL; + rp--; + lp++; + } + } + + /* Remember the number of running sets */ + return rp + 1; +} + +/* + * If o->color_moved is COLOR_MOVED_PLAIN, this function does nothing. + * + * Otherwise, if the last block has fewer alphanumeric characters than + * COLOR_MOVED_MIN_ALNUM_COUNT, unset DIFF_SYMBOL_MOVED_LINE on all lines in + * that block. + * + * The last block consists of the (n - block_length)'th line up to but not + * including the nth line. + * + * NEEDSWORK: This uses the same heuristic as blame_entry_score() in blame.c. + * Think of a way to unify them. + */ +static void adjust_last_block(struct diff_options *o, int n, int block_length) +{ + int i, alnum_count = 0; + if (o->color_moved == COLOR_MOVED_PLAIN) + return; + for (i = 1; i < block_length + 1; i++) { + const char *c = o->emitted_symbols->buf[n - i].line; + for (; *c; c++) { + if (!isalnum(*c)) + continue; + alnum_count++; + if (alnum_count >= COLOR_MOVED_MIN_ALNUM_COUNT) + return; + } + } + for (i = 1; i < block_length + 1; i++) + o->emitted_symbols->buf[n - i].flags &= ~DIFF_SYMBOL_MOVED_LINE; +} + +/* Find blocks of moved code, delegate actual coloring decision to helper */ +static void mark_color_as_moved(struct diff_options *o, + struct hashmap *add_lines, + struct hashmap *del_lines) +{ + struct moved_entry **pmb = NULL; /* potentially moved blocks */ + int pmb_nr = 0, pmb_alloc = 0; + int n, flipped_block = 1, block_length = 0; + + + for (n = 0; n < o->emitted_symbols->nr; n++) { + struct hashmap *hm = NULL; + struct moved_entry *key; + struct moved_entry *match = NULL; + struct emitted_diff_symbol *l = &o->emitted_symbols->buf[n]; + int i; + + switch (l->s) { + case DIFF_SYMBOL_PLUS: + hm = del_lines; + key = prepare_entry(o, n); + match = hashmap_get(hm, key, o); + free(key); + break; + case DIFF_SYMBOL_MINUS: + hm = add_lines; + key = prepare_entry(o, n); + match = hashmap_get(hm, key, o); + free(key); + break; + default: + flipped_block = 1; + } + + if (!match) { + adjust_last_block(o, n, block_length); + pmb_nr = 0; + block_length = 0; + continue; + } + + l->flags |= DIFF_SYMBOL_MOVED_LINE; + + if (o->color_moved == COLOR_MOVED_PLAIN) + continue; + + /* Check any potential block runs, advance each or nullify */ + for (i = 0; i < pmb_nr; i++) { + struct moved_entry *p = pmb[i]; + struct moved_entry *pnext = (p && p->next_line) ? + p->next_line : NULL; + if (pnext && !hm->cmpfn(o, pnext, match, NULL)) { + pmb[i] = p->next_line; + } else { + pmb[i] = NULL; + } + } + + pmb_nr = shrink_potential_moved_blocks(pmb, pmb_nr); + + if (pmb_nr == 0) { + /* + * The current line is the start of a new block. + * Setup the set of potential blocks. + */ + for (; match; match = hashmap_get_next(hm, match)) { + ALLOC_GROW(pmb, pmb_nr + 1, pmb_alloc); + pmb[pmb_nr++] = match; + } + + flipped_block = (flipped_block + 1) % 2; + + adjust_last_block(o, n, block_length); + block_length = 0; + } + + block_length++; + + if (flipped_block) + l->flags |= DIFF_SYMBOL_MOVED_LINE_ALT; + } + adjust_last_block(o, n, block_length); + + free(pmb); +} + +#define DIFF_SYMBOL_MOVED_LINE_ZEBRA_MASK \ + (DIFF_SYMBOL_MOVED_LINE | DIFF_SYMBOL_MOVED_LINE_ALT) +static void dim_moved_lines(struct diff_options *o) +{ + int n; + for (n = 0; n < o->emitted_symbols->nr; n++) { + struct emitted_diff_symbol *prev = (n != 0) ? + &o->emitted_symbols->buf[n - 1] : NULL; + struct emitted_diff_symbol *l = &o->emitted_symbols->buf[n]; + struct emitted_diff_symbol *next = + (n < o->emitted_symbols->nr - 1) ? + &o->emitted_symbols->buf[n + 1] : NULL; + + /* Not a plus or minus line? */ + if (l->s != DIFF_SYMBOL_PLUS && l->s != DIFF_SYMBOL_MINUS) + continue; + + /* Not a moved line? */ + if (!(l->flags & DIFF_SYMBOL_MOVED_LINE)) + continue; + + /* + * If prev or next are not a plus or minus line, + * pretend they don't exist + */ + if (prev && prev->s != DIFF_SYMBOL_PLUS && + prev->s != DIFF_SYMBOL_MINUS) + prev = NULL; + if (next && next->s != DIFF_SYMBOL_PLUS && + next->s != DIFF_SYMBOL_MINUS) + next = NULL; + + /* Inside a block? */ + if ((prev && + (prev->flags & DIFF_SYMBOL_MOVED_LINE_ZEBRA_MASK) == + (l->flags & DIFF_SYMBOL_MOVED_LINE_ZEBRA_MASK)) && + (next && + (next->flags & DIFF_SYMBOL_MOVED_LINE_ZEBRA_MASK) == + (l->flags & DIFF_SYMBOL_MOVED_LINE_ZEBRA_MASK))) { + l->flags |= DIFF_SYMBOL_MOVED_LINE_UNINTERESTING; + continue; + } + + /* Check if we are at an interesting bound: */ + if (prev && (prev->flags & DIFF_SYMBOL_MOVED_LINE) && + (prev->flags & DIFF_SYMBOL_MOVED_LINE_ALT) != + (l->flags & DIFF_SYMBOL_MOVED_LINE_ALT)) + continue; + if (next && (next->flags & DIFF_SYMBOL_MOVED_LINE) && + (next->flags & DIFF_SYMBOL_MOVED_LINE_ALT) != + (l->flags & DIFF_SYMBOL_MOVED_LINE_ALT)) + continue; + + /* + * The boundary to prev and next are not interesting, + * so this line is not interesting as a whole + */ + l->flags |= DIFF_SYMBOL_MOVED_LINE_UNINTERESTING; + } +} + +static void emit_line_ws_markup(struct diff_options *o, + const char *set, const char *reset, + const char *line, int len, char sign, + unsigned ws_rule, int blank_at_eof) { - const char *set = diff_get_color(ecbdata->color_diff, color); const char *ws = NULL; - if (ecbdata->opt->ws_error_highlight & ws_error_highlight) { - ws = diff_get_color(ecbdata->color_diff, DIFF_WHITESPACE); + if (o->ws_error_highlight & ws_rule) { + ws = diff_get_color_opt(o, DIFF_WHITESPACE); if (!*ws) ws = NULL; } if (!ws) - emit_line_0(ecbdata->opt, set, reset, sign, line, len); - else if (sign == '+' && new_blank_line_at_eof(ecbdata, line, len)) + emit_line_0(o, set, reset, sign, line, len); + else if (blank_at_eof) /* Blank line at EOF - paint '+' as well */ - emit_line_0(ecbdata->opt, ws, reset, sign, line, len); + emit_line_0(o, ws, reset, sign, line, len); else { /* Emit just the prefix, then the rest. */ - emit_line_0(ecbdata->opt, set, reset, sign, "", 0); - ws_check_emit(line, len, ecbdata->ws_rule, - ecbdata->opt->file, set, reset, ws); + emit_line_0(o, set, reset, sign, "", 0); + ws_check_emit(line, len, ws_rule, + o->file, set, reset, ws); } } +static void emit_diff_symbol_from_struct(struct diff_options *o, + struct emitted_diff_symbol *eds) +{ + static const char *nneof = " No newline at end of file\n"; + const char *context, *reset, *set, *meta, *fraginfo; + struct strbuf sb = STRBUF_INIT; + + enum diff_symbol s = eds->s; + const char *line = eds->line; + int len = eds->len; + unsigned flags = eds->flags; + + switch (s) { + case DIFF_SYMBOL_NO_LF_EOF: + context = diff_get_color_opt(o, DIFF_CONTEXT); + reset = diff_get_color_opt(o, DIFF_RESET); + putc('\n', o->file); + emit_line_0(o, context, reset, '\\', + nneof, strlen(nneof)); + break; + case DIFF_SYMBOL_SUBMODULE_HEADER: + case DIFF_SYMBOL_SUBMODULE_ERROR: + case DIFF_SYMBOL_SUBMODULE_PIPETHROUGH: + case DIFF_SYMBOL_STATS_SUMMARY_INSERTS_DELETES: + case DIFF_SYMBOL_SUMMARY: + case DIFF_SYMBOL_STATS_LINE: + case DIFF_SYMBOL_BINARY_DIFF_BODY: + case DIFF_SYMBOL_CONTEXT_FRAGINFO: + emit_line(o, "", "", line, len); + break; + case DIFF_SYMBOL_CONTEXT_INCOMPLETE: + case DIFF_SYMBOL_CONTEXT_MARKER: + context = diff_get_color_opt(o, DIFF_CONTEXT); + reset = diff_get_color_opt(o, DIFF_RESET); + emit_line(o, context, reset, line, len); + break; + case DIFF_SYMBOL_SEPARATOR: + fprintf(o->file, "%s%c", + diff_line_prefix(o), + o->line_termination); + break; + case DIFF_SYMBOL_CONTEXT: + set = diff_get_color_opt(o, DIFF_CONTEXT); + reset = diff_get_color_opt(o, DIFF_RESET); + emit_line_ws_markup(o, set, reset, line, len, ' ', + flags & (DIFF_SYMBOL_CONTENT_WS_MASK), 0); + break; + case DIFF_SYMBOL_PLUS: + switch (flags & (DIFF_SYMBOL_MOVED_LINE | + DIFF_SYMBOL_MOVED_LINE_ALT | + DIFF_SYMBOL_MOVED_LINE_UNINTERESTING)) { + case DIFF_SYMBOL_MOVED_LINE | + DIFF_SYMBOL_MOVED_LINE_ALT | + DIFF_SYMBOL_MOVED_LINE_UNINTERESTING: + set = diff_get_color_opt(o, DIFF_FILE_NEW_MOVED_ALT_DIM); + break; + case DIFF_SYMBOL_MOVED_LINE | + DIFF_SYMBOL_MOVED_LINE_ALT: + set = diff_get_color_opt(o, DIFF_FILE_NEW_MOVED_ALT); + break; + case DIFF_SYMBOL_MOVED_LINE | + DIFF_SYMBOL_MOVED_LINE_UNINTERESTING: + set = diff_get_color_opt(o, DIFF_FILE_NEW_MOVED_DIM); + break; + case DIFF_SYMBOL_MOVED_LINE: + set = diff_get_color_opt(o, DIFF_FILE_NEW_MOVED); + break; + default: + set = diff_get_color_opt(o, DIFF_FILE_NEW); + } + reset = diff_get_color_opt(o, DIFF_RESET); + emit_line_ws_markup(o, set, reset, line, len, '+', + flags & DIFF_SYMBOL_CONTENT_WS_MASK, + flags & DIFF_SYMBOL_CONTENT_BLANK_LINE_EOF); + break; + case DIFF_SYMBOL_MINUS: + switch (flags & (DIFF_SYMBOL_MOVED_LINE | + DIFF_SYMBOL_MOVED_LINE_ALT | + DIFF_SYMBOL_MOVED_LINE_UNINTERESTING)) { + case DIFF_SYMBOL_MOVED_LINE | + DIFF_SYMBOL_MOVED_LINE_ALT | + DIFF_SYMBOL_MOVED_LINE_UNINTERESTING: + set = diff_get_color_opt(o, DIFF_FILE_OLD_MOVED_ALT_DIM); + break; + case DIFF_SYMBOL_MOVED_LINE | + DIFF_SYMBOL_MOVED_LINE_ALT: + set = diff_get_color_opt(o, DIFF_FILE_OLD_MOVED_ALT); + break; + case DIFF_SYMBOL_MOVED_LINE | + DIFF_SYMBOL_MOVED_LINE_UNINTERESTING: + set = diff_get_color_opt(o, DIFF_FILE_OLD_MOVED_DIM); + break; + case DIFF_SYMBOL_MOVED_LINE: + set = diff_get_color_opt(o, DIFF_FILE_OLD_MOVED); + break; + default: + set = diff_get_color_opt(o, DIFF_FILE_OLD); + } + reset = diff_get_color_opt(o, DIFF_RESET); + emit_line_ws_markup(o, set, reset, line, len, '-', + flags & DIFF_SYMBOL_CONTENT_WS_MASK, 0); + break; + case DIFF_SYMBOL_WORDS_PORCELAIN: + context = diff_get_color_opt(o, DIFF_CONTEXT); + reset = diff_get_color_opt(o, DIFF_RESET); + emit_line(o, context, reset, line, len); + fputs("~\n", o->file); + break; + case DIFF_SYMBOL_WORDS: + context = diff_get_color_opt(o, DIFF_CONTEXT); + reset = diff_get_color_opt(o, DIFF_RESET); + /* + * Skip the prefix character, if any. With + * diff_suppress_blank_empty, there may be + * none. + */ + if (line[0] != '\n') { + line++; + len--; + } + emit_line(o, context, reset, line, len); + break; + case DIFF_SYMBOL_FILEPAIR_PLUS: + meta = diff_get_color_opt(o, DIFF_METAINFO); + reset = diff_get_color_opt(o, DIFF_RESET); + fprintf(o->file, "%s%s+++ %s%s%s\n", diff_line_prefix(o), meta, + line, reset, + strchr(line, ' ') ? "\t" : ""); + break; + case DIFF_SYMBOL_FILEPAIR_MINUS: + meta = diff_get_color_opt(o, DIFF_METAINFO); + reset = diff_get_color_opt(o, DIFF_RESET); + fprintf(o->file, "%s%s--- %s%s%s\n", diff_line_prefix(o), meta, + line, reset, + strchr(line, ' ') ? "\t" : ""); + break; + case DIFF_SYMBOL_BINARY_FILES: + case DIFF_SYMBOL_HEADER: + fprintf(o->file, "%s", line); + break; + case DIFF_SYMBOL_BINARY_DIFF_HEADER: + fprintf(o->file, "%sGIT binary patch\n", diff_line_prefix(o)); + break; + case DIFF_SYMBOL_BINARY_DIFF_HEADER_DELTA: + fprintf(o->file, "%sdelta %s\n", diff_line_prefix(o), line); + break; + case DIFF_SYMBOL_BINARY_DIFF_HEADER_LITERAL: + fprintf(o->file, "%sliteral %s\n", diff_line_prefix(o), line); + break; + case DIFF_SYMBOL_BINARY_DIFF_FOOTER: + fputs(diff_line_prefix(o), o->file); + fputc('\n', o->file); + break; + case DIFF_SYMBOL_REWRITE_DIFF: + fraginfo = diff_get_color(o->use_color, DIFF_FRAGINFO); + reset = diff_get_color_opt(o, DIFF_RESET); + emit_line(o, fraginfo, reset, line, len); + break; + case DIFF_SYMBOL_SUBMODULE_ADD: + set = diff_get_color_opt(o, DIFF_FILE_NEW); + reset = diff_get_color_opt(o, DIFF_RESET); + emit_line(o, set, reset, line, len); + break; + case DIFF_SYMBOL_SUBMODULE_DEL: + set = diff_get_color_opt(o, DIFF_FILE_OLD); + reset = diff_get_color_opt(o, DIFF_RESET); + emit_line(o, set, reset, line, len); + break; + case DIFF_SYMBOL_SUBMODULE_UNTRACKED: + fprintf(o->file, "%sSubmodule %s contains untracked content\n", + diff_line_prefix(o), line); + break; + case DIFF_SYMBOL_SUBMODULE_MODIFIED: + fprintf(o->file, "%sSubmodule %s contains modified content\n", + diff_line_prefix(o), line); + break; + case DIFF_SYMBOL_STATS_SUMMARY_NO_FILES: + emit_line(o, "", "", " 0 files changed\n", + strlen(" 0 files changed\n")); + break; + case DIFF_SYMBOL_STATS_SUMMARY_ABBREV: + emit_line(o, "", "", " ...\n", strlen(" ...\n")); + break; + case DIFF_SYMBOL_WORD_DIFF: + fprintf(o->file, "%.*s", len, line); + break; + case DIFF_SYMBOL_STAT_SEP: + fputs(o->stat_sep, o->file); + break; + default: + die("BUG: unknown diff symbol"); + } + strbuf_release(&sb); +} + +static void emit_diff_symbol(struct diff_options *o, enum diff_symbol s, + const char *line, int len, unsigned flags) +{ + struct emitted_diff_symbol e = {line, len, flags, s}; + + if (o->emitted_symbols) + append_emitted_diff_symbol(o, &e); + else + emit_diff_symbol_from_struct(o, &e); +} + +void diff_emit_submodule_del(struct diff_options *o, const char *line) +{ + emit_diff_symbol(o, DIFF_SYMBOL_SUBMODULE_DEL, line, strlen(line), 0); +} + +void diff_emit_submodule_add(struct diff_options *o, const char *line) +{ + emit_diff_symbol(o, DIFF_SYMBOL_SUBMODULE_ADD, line, strlen(line), 0); +} + +void diff_emit_submodule_untracked(struct diff_options *o, const char *path) +{ + emit_diff_symbol(o, DIFF_SYMBOL_SUBMODULE_UNTRACKED, + path, strlen(path), 0); +} + +void diff_emit_submodule_modified(struct diff_options *o, const char *path) +{ + emit_diff_symbol(o, DIFF_SYMBOL_SUBMODULE_MODIFIED, + path, strlen(path), 0); +} + +void diff_emit_submodule_header(struct diff_options *o, const char *header) +{ + emit_diff_symbol(o, DIFF_SYMBOL_SUBMODULE_HEADER, + header, strlen(header), 0); +} + +void diff_emit_submodule_error(struct diff_options *o, const char *err) +{ + emit_diff_symbol(o, DIFF_SYMBOL_SUBMODULE_ERROR, err, strlen(err), 0); +} + +void diff_emit_submodule_pipethrough(struct diff_options *o, + const char *line, int len) +{ + emit_diff_symbol(o, DIFF_SYMBOL_SUBMODULE_PIPETHROUGH, line, len, 0); +} + +static int new_blank_line_at_eof(struct emit_callback *ecbdata, const char *line, int len) +{ + if (!((ecbdata->ws_rule & WS_BLANK_AT_EOF) && + ecbdata->blank_at_eof_in_preimage && + ecbdata->blank_at_eof_in_postimage && + ecbdata->blank_at_eof_in_preimage <= ecbdata->lno_in_preimage && + ecbdata->blank_at_eof_in_postimage <= ecbdata->lno_in_postimage)) + return 0; + return ws_blank_line(line, len, ecbdata->ws_rule); +} + static void emit_add_line(const char *reset, struct emit_callback *ecbdata, const char *line, int len) { - emit_line_checked(reset, ecbdata, line, len, - DIFF_FILE_NEW, WSEH_NEW, '+'); + unsigned flags = WSEH_NEW | ecbdata->ws_rule; + if (new_blank_line_at_eof(ecbdata, line, len)) + flags |= DIFF_SYMBOL_CONTENT_BLANK_LINE_EOF; + + emit_diff_symbol(ecbdata->opt, DIFF_SYMBOL_PLUS, line, len, flags); } static void emit_del_line(const char *reset, struct emit_callback *ecbdata, const char *line, int len) { - emit_line_checked(reset, ecbdata, line, len, - DIFF_FILE_OLD, WSEH_OLD, '-'); + unsigned flags = WSEH_OLD | ecbdata->ws_rule; + emit_diff_symbol(ecbdata->opt, DIFF_SYMBOL_MINUS, line, len, flags); } static void emit_context_line(const char *reset, struct emit_callback *ecbdata, const char *line, int len) { - emit_line_checked(reset, ecbdata, line, len, - DIFF_CONTEXT, WSEH_CONTEXT, ' '); + unsigned flags = WSEH_CONTEXT | ecbdata->ws_rule; + emit_diff_symbol(ecbdata->opt, DIFF_SYMBOL_CONTEXT, line, len, flags); } static void emit_hunk_header(struct emit_callback *ecbdata, @@ -643,7 +1297,8 @@ static void emit_hunk_header(struct emit_callback *ecbdata, if (len < 10 || memcmp(line, atat, 2) || !(ep = memmem(line + 2, len - 2, atat, 2))) { - emit_line(ecbdata->opt, context, reset, line, len); + emit_diff_symbol(ecbdata->opt, + DIFF_SYMBOL_CONTEXT_MARKER, line, len, 0); return; } ep += 2; /* skip over @@ */ @@ -677,7 +1332,9 @@ static void emit_hunk_header(struct emit_callback *ecbdata, } strbuf_add(&msgbuf, line + len, org_len - len); - emit_line(ecbdata->opt, "", "", msgbuf.buf, msgbuf.len); + strbuf_complete_line(&msgbuf); + emit_diff_symbol(ecbdata->opt, + DIFF_SYMBOL_CONTEXT_FRAGINFO, msgbuf.buf, msgbuf.len, 0); strbuf_release(&msgbuf); } @@ -693,23 +1350,23 @@ static void remove_tempfile(void) { int i; for (i = 0; i < ARRAY_SIZE(diff_temp); i++) { - if (is_tempfile_active(&diff_temp[i].tempfile)) + if (is_tempfile_active(diff_temp[i].tempfile)) delete_tempfile(&diff_temp[i].tempfile); diff_temp[i].name = NULL; } } -static void print_line_count(FILE *file, int count) +static void add_line_count(struct strbuf *out, int count) { switch (count) { case 0: - fprintf(file, "0,0"); + strbuf_addstr(out, "0,0"); break; case 1: - fprintf(file, "1"); + strbuf_addstr(out, "1"); break; default: - fprintf(file, "1,%d", count); + strbuf_addf(out, "1,%d", count); break; } } @@ -718,7 +1375,6 @@ static void emit_rewrite_lines(struct emit_callback *ecb, int prefix, const char *data, int size) { const char *endp = NULL; - static const char *nneof = " No newline at end of file\n"; const char *reset = diff_get_color(ecb->color_diff, DIFF_RESET); while (0 < size) { @@ -736,13 +1392,8 @@ static void emit_rewrite_lines(struct emit_callback *ecb, size -= len; data += len; } - if (!endp) { - const char *context = diff_get_color(ecb->color_diff, - DIFF_CONTEXT); - putc('\n', ecb->opt->file); - emit_line_0(ecb->opt, context, reset, '\\', - nneof, strlen(nneof)); - } + if (!endp) + emit_diff_symbol(ecb->opt, DIFF_SYMBOL_NO_LF_EOF, NULL, 0, 0); } static void emit_rewrite_diff(const char *name_a, @@ -754,18 +1405,14 @@ static void emit_rewrite_diff(const char *name_a, struct diff_options *o) { int lc_a, lc_b; - const char *name_a_tab, *name_b_tab; - const char *metainfo = diff_get_color(o->use_color, DIFF_METAINFO); - const char *fraginfo = diff_get_color(o->use_color, DIFF_FRAGINFO); - const char *reset = diff_get_color(o->use_color, DIFF_RESET); static struct strbuf a_name = STRBUF_INIT, b_name = STRBUF_INIT; const char *a_prefix, *b_prefix; char *data_one, *data_two; size_t size_one, size_two; struct emit_callback ecbdata; - const char *line_prefix = diff_line_prefix(o); + struct strbuf out = STRBUF_INIT; - if (diff_mnemonic_prefix && DIFF_OPT_TST(o, REVERSE_DIFF)) { + if (diff_mnemonic_prefix && o->flags.reverse_diff) { a_prefix = o->b_prefix; b_prefix = o->a_prefix; } else { @@ -775,8 +1422,6 @@ static void emit_rewrite_diff(const char *name_a, name_a += (*name_a == '/'); name_b += (*name_b == '/'); - name_a_tab = strchr(name_a, ' ') ? "\t" : ""; - name_b_tab = strchr(name_b, ' ') ? "\t" : ""; strbuf_reset(&a_name); strbuf_reset(&b_name); @@ -803,18 +1448,23 @@ static void emit_rewrite_diff(const char *name_a, lc_a = count_lines(data_one, size_one); lc_b = count_lines(data_two, size_two); - fprintf(o->file, - "%s%s--- %s%s%s\n%s%s+++ %s%s%s\n%s%s@@ -", - line_prefix, metainfo, a_name.buf, name_a_tab, reset, - line_prefix, metainfo, b_name.buf, name_b_tab, reset, - line_prefix, fraginfo); + + emit_diff_symbol(o, DIFF_SYMBOL_FILEPAIR_MINUS, + a_name.buf, a_name.len, 0); + emit_diff_symbol(o, DIFF_SYMBOL_FILEPAIR_PLUS, + b_name.buf, b_name.len, 0); + + strbuf_addstr(&out, "@@ -"); if (!o->irreversible_delete) - print_line_count(o->file, lc_a); + add_line_count(&out, lc_a); else - fprintf(o->file, "?,?"); - fprintf(o->file, " +"); - print_line_count(o->file, lc_b); - fprintf(o->file, " @@%s\n", reset); + strbuf_addstr(&out, "?,?"); + strbuf_addstr(&out, " +"); + add_line_count(&out, lc_b); + strbuf_addstr(&out, " @@\n"); + emit_diff_symbol(o, DIFF_SYMBOL_REWRITE_DIFF, out.buf, out.len, 0); + strbuf_release(&out); + if (lc_a && !o->irreversible_delete) emit_rewrite_lines(&ecbdata, '-', data_one, size_one); if (lc_b) @@ -827,7 +1477,7 @@ static void emit_rewrite_diff(const char *name_a, struct diff_words_buffer { mmfile_t text; - long alloc; + unsigned long alloc; struct diff_words_orig { const char *begin, *end; } *orig; @@ -874,37 +1524,49 @@ struct diff_words_data { struct diff_words_style *style; }; -static int fn_out_diff_words_write_helper(FILE *fp, +static int fn_out_diff_words_write_helper(struct diff_options *o, struct diff_words_style_elem *st_el, const char *newline, - size_t count, const char *buf, - const char *line_prefix) + size_t count, const char *buf) { int print = 0; + struct strbuf sb = STRBUF_INIT; while (count) { char *p = memchr(buf, '\n', count); if (print) - fputs(line_prefix, fp); + strbuf_addstr(&sb, diff_line_prefix(o)); + if (p != buf) { - if (st_el->color && fputs(st_el->color, fp) < 0) - return -1; - if (fputs(st_el->prefix, fp) < 0 || - fwrite(buf, p ? p - buf : count, 1, fp) != 1 || - fputs(st_el->suffix, fp) < 0) - return -1; - if (st_el->color && *st_el->color - && fputs(GIT_COLOR_RESET, fp) < 0) - return -1; + const char *reset = st_el->color && *st_el->color ? + GIT_COLOR_RESET : NULL; + if (st_el->color && *st_el->color) + strbuf_addstr(&sb, st_el->color); + strbuf_addstr(&sb, st_el->prefix); + strbuf_add(&sb, buf, p ? p - buf : count); + strbuf_addstr(&sb, st_el->suffix); + if (reset) + strbuf_addstr(&sb, reset); } if (!p) - return 0; - if (fputs(newline, fp) < 0) - return -1; + goto out; + + strbuf_addstr(&sb, newline); count -= p + 1 - buf; buf = p + 1; print = 1; + if (count) { + emit_diff_symbol(o, DIFF_SYMBOL_WORD_DIFF, + sb.buf, sb.len, 0); + strbuf_reset(&sb); + } } + +out: + if (sb.len) + emit_diff_symbol(o, DIFF_SYMBOL_WORD_DIFF, + sb.buf, sb.len, 0); + strbuf_release(&sb); return 0; } @@ -986,24 +1648,20 @@ static void fn_out_diff_words_aux(void *priv, char *line, unsigned long len) fputs(line_prefix, diff_words->opt->file); } if (diff_words->current_plus != plus_begin) { - fn_out_diff_words_write_helper(diff_words->opt->file, + fn_out_diff_words_write_helper(diff_words->opt, &style->ctx, style->newline, plus_begin - diff_words->current_plus, - diff_words->current_plus, line_prefix); - if (*(plus_begin - 1) == '\n') - fputs(line_prefix, diff_words->opt->file); + diff_words->current_plus); } if (minus_begin != minus_end) { - fn_out_diff_words_write_helper(diff_words->opt->file, + fn_out_diff_words_write_helper(diff_words->opt, &style->old, style->newline, - minus_end - minus_begin, minus_begin, - line_prefix); + minus_end - minus_begin, minus_begin); } if (plus_begin != plus_end) { - fn_out_diff_words_write_helper(diff_words->opt->file, + fn_out_diff_words_write_helper(diff_words->opt, &style->new, style->newline, - plus_end - plus_begin, plus_begin, - line_prefix); + plus_end - plus_begin, plus_begin); } diff_words->current_plus = plus_end; @@ -1097,11 +1755,12 @@ static void diff_words_show(struct diff_words_data *diff_words) /* special case: only removal */ if (!diff_words->plus.text.size) { - fputs(line_prefix, diff_words->opt->file); - fn_out_diff_words_write_helper(diff_words->opt->file, + emit_diff_symbol(diff_words->opt, DIFF_SYMBOL_WORD_DIFF, + line_prefix, strlen(line_prefix), 0); + fn_out_diff_words_write_helper(diff_words->opt, &style->old, style->newline, diff_words->minus.text.size, - diff_words->minus.text.ptr, line_prefix); + diff_words->minus.text.ptr); diff_words->minus.text.size = 0; return; } @@ -1124,12 +1783,12 @@ static void diff_words_show(struct diff_words_data *diff_words) if (diff_words->current_plus != diff_words->plus.text.ptr + diff_words->plus.text.size) { if (color_words_output_graph_prefix(diff_words)) - fputs(line_prefix, diff_words->opt->file); - fn_out_diff_words_write_helper(diff_words->opt->file, + emit_diff_symbol(diff_words->opt, DIFF_SYMBOL_WORD_DIFF, + line_prefix, strlen(line_prefix), 0); + fn_out_diff_words_write_helper(diff_words->opt, &style->ctx, style->newline, diff_words->plus.text.ptr + diff_words->plus.text.size - - diff_words->current_plus, diff_words->current_plus, - line_prefix); + - diff_words->current_plus, diff_words->current_plus); } diff_words->minus.text.size = diff_words->plus.text.size = 0; } @@ -1137,9 +1796,29 @@ static void diff_words_show(struct diff_words_data *diff_words) /* In "color-words" mode, show word-diff of words accumulated in the buffer */ static void diff_words_flush(struct emit_callback *ecbdata) { + struct diff_options *wo = ecbdata->diff_words->opt; + if (ecbdata->diff_words->minus.text.size || ecbdata->diff_words->plus.text.size) diff_words_show(ecbdata->diff_words); + + if (wo->emitted_symbols) { + struct diff_options *o = ecbdata->opt; + struct emitted_diff_symbols *wol = wo->emitted_symbols; + int i; + + /* + * NEEDSWORK: + * Instead of appending each, concat all words to a line? + */ + for (i = 0; i < wol->nr; i++) + append_emitted_diff_symbol(o, &wol->buf[i]); + + for (i = 0; i < wol->nr; i++) + free((void *)wol->buf[i].line); + + wol->nr = 0; + } } static void diff_filespec_load_driver(struct diff_filespec *one) @@ -1175,6 +1854,11 @@ static void init_diff_words_data(struct emit_callback *ecbdata, xcalloc(1, sizeof(struct diff_words_data)); ecbdata->diff_words->type = o->word_diff; ecbdata->diff_words->opt = o; + + if (orig_opts->emitted_symbols) + o->emitted_symbols = + xcalloc(1, sizeof(struct emitted_diff_symbols)); + if (!o->word_regex) o->word_regex = userdiff_word_regex(one); if (!o->word_regex) @@ -1209,6 +1893,7 @@ static void free_diff_words_data(struct emit_callback *ecbdata) { if (ecbdata->diff_words) { diff_words_flush(ecbdata); + free (ecbdata->diff_words->opt->emitted_symbols); free (ecbdata->diff_words->opt); free (ecbdata->diff_words->minus.text.ptr); free (ecbdata->diff_words->minus.orig); @@ -1218,8 +1903,7 @@ static void free_diff_words_data(struct emit_callback *ecbdata) regfree(ecbdata->diff_words->word_regex); free(ecbdata->diff_words->word_regex); } - free(ecbdata->diff_words); - ecbdata->diff_words = NULL; + FREE_AND_NULL(ecbdata->diff_words); } } @@ -1246,8 +1930,6 @@ static unsigned long sane_truncate_line(struct emit_callback *ecb, char *line, u unsigned long allot; size_t l = len; - if (ecb->truncate) - return ecb->truncate(line, len); cp = line; allot = l; while (0 < l) { @@ -1276,30 +1958,25 @@ static void find_lno(const char *line, struct emit_callback *ecbdata) static void fn_out_consume(void *priv, char *line, unsigned long len) { struct emit_callback *ecbdata = priv; - const char *meta = diff_get_color(ecbdata->color_diff, DIFF_METAINFO); - const char *context = diff_get_color(ecbdata->color_diff, DIFF_CONTEXT); const char *reset = diff_get_color(ecbdata->color_diff, DIFF_RESET); struct diff_options *o = ecbdata->opt; - const char *line_prefix = diff_line_prefix(o); o->found_changes = 1; if (ecbdata->header) { - fprintf(o->file, "%s", ecbdata->header->buf); + emit_diff_symbol(o, DIFF_SYMBOL_HEADER, + ecbdata->header->buf, ecbdata->header->len, 0); strbuf_reset(ecbdata->header); ecbdata->header = NULL; } if (ecbdata->label_path[0]) { - const char *name_a_tab, *name_b_tab; - - name_a_tab = strchr(ecbdata->label_path[0], ' ') ? "\t" : ""; - name_b_tab = strchr(ecbdata->label_path[1], ' ') ? "\t" : ""; - - fprintf(o->file, "%s%s--- %s%s%s\n", - line_prefix, meta, ecbdata->label_path[0], reset, name_a_tab); - fprintf(o->file, "%s%s+++ %s%s%s\n", - line_prefix, meta, ecbdata->label_path[1], reset, name_b_tab); + emit_diff_symbol(o, DIFF_SYMBOL_FILEPAIR_MINUS, + ecbdata->label_path[0], + strlen(ecbdata->label_path[0]), 0); + emit_diff_symbol(o, DIFF_SYMBOL_FILEPAIR_PLUS, + ecbdata->label_path[1], + strlen(ecbdata->label_path[1]), 0); ecbdata->label_path[0] = ecbdata->label_path[1] = NULL; } @@ -1315,12 +1992,13 @@ static void fn_out_consume(void *priv, char *line, unsigned long len) len = sane_truncate_line(ecbdata, line, len); find_lno(line, ecbdata); emit_hunk_header(ecbdata, line, len); - if (line[len-1] != '\n') - putc('\n', o->file); return; } if (ecbdata->diff_words) { + enum diff_symbol s = + ecbdata->diff_words->type == DIFF_WORDS_PORCELAIN ? + DIFF_SYMBOL_WORDS_PORCELAIN : DIFF_SYMBOL_WORDS; if (line[0] == '-') { diff_words_append(line, len, &ecbdata->diff_words->minus); @@ -1340,21 +2018,7 @@ static void fn_out_consume(void *priv, char *line, unsigned long len) return; } diff_words_flush(ecbdata); - if (ecbdata->diff_words->type == DIFF_WORDS_PORCELAIN) { - emit_line(o, context, reset, line, len); - fputs("~\n", o->file); - } else { - /* - * Skip the prefix character, if any. With - * diff_suppress_blank_empty, there may be - * none. - */ - if (line[0] != '\n') { - line++; - len--; - } - emit_line(o, context, reset, line, len); - } + emit_diff_symbol(o, s, line, len, 0); return; } @@ -1375,8 +2039,8 @@ static void fn_out_consume(void *priv, char *line, unsigned long len) default: /* incomplete line at the end */ ecbdata->lno_in_preimage++; - emit_line(o, diff_get_color(ecbdata->color_diff, DIFF_CONTEXT), - reset, line, len); + emit_diff_symbol(o, DIFF_SYMBOL_CONTEXT_INCOMPLETE, + line, len, 0); break; } } @@ -1521,20 +2185,14 @@ static int scale_linear(int it, int width, int max_change) return 1 + (it * (width - 1) / max_change); } -static void show_name(FILE *file, - const char *prefix, const char *name, int len) -{ - fprintf(file, " %s%-*s |", prefix, len, name); -} - -static void show_graph(FILE *file, char ch, int cnt, const char *set, const char *reset) +static void show_graph(struct strbuf *out, char ch, int cnt, + const char *set, const char *reset) { if (cnt <= 0) return; - fprintf(file, "%s", set); - while (cnt--) - putc(ch, file); - fprintf(file, "%s", reset); + strbuf_addstr(out, set); + strbuf_addchars(out, ch, cnt); + strbuf_addstr(out, reset); } static void fill_print_name(struct diffstat_file *file) @@ -1558,14 +2216,16 @@ static void fill_print_name(struct diffstat_file *file) file->print_name = pname; } -int print_stat_summary(FILE *fp, int files, int insertions, int deletions) +static void print_stat_summary_inserts_deletes(struct diff_options *options, + int files, int insertions, int deletions) { struct strbuf sb = STRBUF_INIT; - int ret; if (!files) { assert(insertions == 0 && deletions == 0); - return fprintf(fp, "%s\n", " 0 files changed"); + emit_diff_symbol(options, DIFF_SYMBOL_STATS_SUMMARY_NO_FILES, + NULL, 0, 0); + return; } strbuf_addf(&sb, @@ -1592,9 +2252,19 @@ int print_stat_summary(FILE *fp, int files, int insertions, int deletions) deletions); } strbuf_addch(&sb, '\n'); - ret = fputs(sb.buf, fp); + emit_diff_symbol(options, DIFF_SYMBOL_STATS_SUMMARY_INSERTS_DELETES, + sb.buf, sb.len, 0); strbuf_release(&sb); - return ret; +} + +void print_stat_summary(FILE *fp, int files, + int insertions, int deletions) +{ + struct diff_options o; + memset(&o, 0, sizeof(o)); + o.file = fp; + + print_stat_summary_inserts_deletes(&o, files, insertions, deletions); } static void show_stats(struct diffstat_t *data, struct diff_options *options) @@ -1604,13 +2274,13 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options) int total_files = data->nr, count; int width, name_width, graph_width, number_width = 0, bin_width = 0; const char *reset, *add_c, *del_c; - const char *line_prefix = ""; int extra_shown = 0; + const char *line_prefix = diff_line_prefix(options); + struct strbuf out = STRBUF_INIT; if (data->nr == 0) return; - line_prefix = diff_line_prefix(options); count = options->stat_count ? options->stat_count : data->nr; reset = diff_get_color_opt(options, DIFF_RESET); @@ -1764,26 +2434,32 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options) } if (file->is_binary) { - fprintf(options->file, "%s", line_prefix); - show_name(options->file, prefix, name, len); - fprintf(options->file, " %*s", number_width, "Bin"); + strbuf_addf(&out, " %s%-*s |", prefix, len, name); + strbuf_addf(&out, " %*s", number_width, "Bin"); if (!added && !deleted) { - putc('\n', options->file); + strbuf_addch(&out, '\n'); + emit_diff_symbol(options, DIFF_SYMBOL_STATS_LINE, + out.buf, out.len, 0); + strbuf_reset(&out); continue; } - fprintf(options->file, " %s%"PRIuMAX"%s", + strbuf_addf(&out, " %s%"PRIuMAX"%s", del_c, deleted, reset); - fprintf(options->file, " -> "); - fprintf(options->file, "%s%"PRIuMAX"%s", + strbuf_addstr(&out, " -> "); + strbuf_addf(&out, "%s%"PRIuMAX"%s", add_c, added, reset); - fprintf(options->file, " bytes"); - fprintf(options->file, "\n"); + strbuf_addstr(&out, " bytes\n"); + emit_diff_symbol(options, DIFF_SYMBOL_STATS_LINE, + out.buf, out.len, 0); + strbuf_reset(&out); continue; } else if (file->is_unmerged) { - fprintf(options->file, "%s", line_prefix); - show_name(options->file, prefix, name, len); - fprintf(options->file, " Unmerged\n"); + strbuf_addf(&out, " %s%-*s |", prefix, len, name); + strbuf_addstr(&out, " Unmerged\n"); + emit_diff_symbol(options, DIFF_SYMBOL_STATS_LINE, + out.buf, out.len, 0); + strbuf_reset(&out); continue; } @@ -1806,14 +2482,16 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options) add = total - del; } } - fprintf(options->file, "%s", line_prefix); - show_name(options->file, prefix, name, len); - fprintf(options->file, " %*"PRIuMAX"%s", + strbuf_addf(&out, " %s%-*s |", prefix, len, name); + strbuf_addf(&out, " %*"PRIuMAX"%s", number_width, added + deleted, added + deleted ? " " : ""); - show_graph(options->file, '+', add, add_c, reset); - show_graph(options->file, '-', del, del_c, reset); - fprintf(options->file, "\n"); + show_graph(&out, '+', add, add_c, reset); + show_graph(&out, '-', del, del_c, reset); + strbuf_addch(&out, '\n'); + emit_diff_symbol(options, DIFF_SYMBOL_STATS_LINE, + out.buf, out.len, 0); + strbuf_reset(&out); } for (i = 0; i < data->nr; i++) { @@ -1834,11 +2512,14 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options) if (i < count) continue; if (!extra_shown) - fprintf(options->file, "%s ...\n", line_prefix); + emit_diff_symbol(options, + DIFF_SYMBOL_STATS_SUMMARY_ABBREV, + NULL, 0, 0); extra_shown = 1; } - fprintf(options->file, "%s", line_prefix); - print_stat_summary(options->file, total_files, adds, dels); + + print_stat_summary_inserts_deletes(options, total_files, adds, dels); + strbuf_release(&out); } static void show_shortstats(struct diffstat_t *data, struct diff_options *options) @@ -1850,7 +2531,7 @@ static void show_shortstats(struct diffstat_t *data, struct diff_options *option for (i = 0; i < data->nr; i++) { int added = data->files[i]->added; - int deleted= data->files[i]->deleted; + int deleted = data->files[i]->deleted; if (data->files[i]->is_unmerged || (!data->files[i]->is_interesting && (added + deleted == 0))) { @@ -1860,8 +2541,7 @@ static void show_shortstats(struct diffstat_t *data, struct diff_options *option dels += deleted; } } - fprintf(options->file, "%s", diff_line_prefix(options)); - print_stat_summary(options->file, total_files, adds, dels); + print_stat_summary_inserts_deletes(options, total_files, adds, dels); } static void show_numstat(struct diffstat_t *data, struct diff_options *options) @@ -1980,7 +2660,7 @@ static void show_dirstat(struct diff_options *options) dir.alloc = 0; dir.nr = 0; dir.permille = options->dirstat_permille; - dir.cumulative = DIFF_OPT_TST(options, DIRSTAT_CUMULATIVE); + dir.cumulative = options->flags.dirstat_cumulative; changed = 0; for (i = 0; i < q->nr; i++) { @@ -2006,7 +2686,7 @@ static void show_dirstat(struct diff_options *options) goto found_damage; } - if (DIFF_OPT_TST(options, DIRSTAT_BY_FILE)) { + if (options->flags.dirstat_by_file) { /* * In --dirstat-by-file mode, we don't really need to * look at the actual file contents at all. @@ -2081,7 +2761,7 @@ static void show_dirstat_by_line(struct diffstat_t *data, struct diff_options *o dir.alloc = 0; dir.nr = 0; dir.permille = options->dirstat_permille; - dir.cumulative = DIFF_OPT_TST(options, DIRSTAT_CUMULATIVE); + dir.cumulative = options->flags.dirstat_cumulative; changed = 0; for (i = 0; i < data->nr; i++) { @@ -2095,7 +2775,7 @@ static void show_dirstat_by_line(struct diffstat_t *data, struct diff_options *o * bytes per "line". * This is stupid and ugly, but very cheap... */ - damage = (damage + 63) / 64; + damage = DIV_ROUND_UP(damage, 64); ALLOC_GROW(dir.files, dir.nr + 1, dir.alloc); dir.files[dir.nr].name = file->name; dir.files[dir.nr].changed = damage; @@ -2225,8 +2905,8 @@ static unsigned char *deflate_it(char *data, return deflated; } -static void emit_binary_diff_body(FILE *file, mmfile_t *one, mmfile_t *two, - const char *prefix) +static void emit_binary_diff_body(struct diff_options *o, + mmfile_t *one, mmfile_t *two) { void *cp; void *delta; @@ -2255,13 +2935,18 @@ static void emit_binary_diff_body(FILE *file, mmfile_t *one, mmfile_t *two, } if (delta && delta_size < deflate_size) { - fprintf(file, "%sdelta %lu\n", prefix, orig_size); + char *s = xstrfmt("%lu", orig_size); + emit_diff_symbol(o, DIFF_SYMBOL_BINARY_DIFF_HEADER_DELTA, + s, strlen(s), 0); + free(s); free(deflated); data = delta; data_size = delta_size; - } - else { - fprintf(file, "%sliteral %lu\n", prefix, two->size); + } else { + char *s = xstrfmt("%lu", two->size); + emit_diff_symbol(o, DIFF_SYMBOL_BINARY_DIFF_HEADER_LITERAL, + s, strlen(s), 0); + free(s); free(delta); data = deflated; data_size = deflate_size; @@ -2270,8 +2955,9 @@ static void emit_binary_diff_body(FILE *file, mmfile_t *one, mmfile_t *two, /* emit data encoded in base85 */ cp = data; while (data_size) { + int len; int bytes = (52 < data_size) ? 52 : data_size; - char line[70]; + char line[71]; data_size -= bytes; if (bytes <= 26) line[0] = bytes + 'A' - 1; @@ -2279,20 +2965,24 @@ static void emit_binary_diff_body(FILE *file, mmfile_t *one, mmfile_t *two, line[0] = bytes - 26 + 'a' - 1; encode_85(line + 1, cp, bytes); cp = (char *) cp + bytes; - fprintf(file, "%s", prefix); - fputs(line, file); - fputc('\n', file); + + len = strlen(line); + line[len++] = '\n'; + line[len] = '\0'; + + emit_diff_symbol(o, DIFF_SYMBOL_BINARY_DIFF_BODY, + line, len, 0); } - fprintf(file, "%s\n", prefix); + emit_diff_symbol(o, DIFF_SYMBOL_BINARY_DIFF_FOOTER, NULL, 0, 0); free(data); } -static void emit_binary_diff(FILE *file, mmfile_t *one, mmfile_t *two, - const char *prefix) +static void emit_binary_diff(struct diff_options *o, + mmfile_t *one, mmfile_t *two) { - fprintf(file, "%sGIT binary patch\n", prefix); - emit_binary_diff_body(file, one, two, prefix); - emit_binary_diff_body(file, two, one, prefix); + emit_diff_symbol(o, DIFF_SYMBOL_BINARY_DIFF_HEADER, NULL, 0, 0); + emit_binary_diff_body(o, one, two); + emit_binary_diff_body(o, two, one); } int diff_filespec_is_binary(struct diff_filespec *one) @@ -2358,7 +3048,7 @@ static void builtin_diff(const char *name_a, const char *line_prefix = diff_line_prefix(o); diff_set_mnemonic_prefix(o, "a/", "b/"); - if (DIFF_OPT_TST(o, REVERSE_DIFF)) { + if (o->flags.reverse_diff) { a_prefix = o->b_prefix; b_prefix = o->a_prefix; } else { @@ -2369,28 +3059,20 @@ static void builtin_diff(const char *name_a, if (o->submodule_format == DIFF_SUBMODULE_LOG && (!one->mode || S_ISGITLINK(one->mode)) && (!two->mode || S_ISGITLINK(two->mode))) { - const char *del = diff_get_color_opt(o, DIFF_FILE_OLD); - const char *add = diff_get_color_opt(o, DIFF_FILE_NEW); - show_submodule_summary(o->file, one->path ? one->path : two->path, - line_prefix, + show_submodule_summary(o, one->path ? one->path : two->path, &one->oid, &two->oid, - two->dirty_submodule, - meta, del, add, reset); + two->dirty_submodule); return; } else if (o->submodule_format == DIFF_SUBMODULE_INLINE_DIFF && (!one->mode || S_ISGITLINK(one->mode)) && (!two->mode || S_ISGITLINK(two->mode))) { - const char *del = diff_get_color_opt(o, DIFF_FILE_OLD); - const char *add = diff_get_color_opt(o, DIFF_FILE_NEW); - show_submodule_inline_diff(o->file, one->path ? one->path : two->path, - line_prefix, + show_submodule_inline_diff(o, one->path ? one->path : two->path, &one->oid, &two->oid, - two->dirty_submodule, - meta, del, add, reset, o); + two->dirty_submodule); return; } - if (DIFF_OPT_TST(o, ALLOW_TEXTCONV)) { + if (o->flags.allow_textconv) { textconv_one = get_textconv(one); textconv_two = get_textconv(two); } @@ -2435,7 +3117,8 @@ static void builtin_diff(const char *name_a, if (complete_rewrite && (textconv_one || !diff_filespec_is_binary(one)) && (textconv_two || !diff_filespec_is_binary(two))) { - fprintf(o->file, "%s", header.buf); + emit_diff_symbol(o, DIFF_SYMBOL_HEADER, + header.buf, header.len, 0); strbuf_reset(&header); emit_rewrite_diff(name_a, name_b, one, two, textconv_one, textconv_two, o); @@ -2445,23 +3128,31 @@ static void builtin_diff(const char *name_a, } if (o->irreversible_delete && lbl[1][0] == '/') { - fprintf(o->file, "%s", header.buf); + emit_diff_symbol(o, DIFF_SYMBOL_HEADER, header.buf, + header.len, 0); strbuf_reset(&header); goto free_ab_and_return; - } else if (!DIFF_OPT_TST(o, TEXT) && + } else if (!o->flags.text && ( (!textconv_one && diff_filespec_is_binary(one)) || (!textconv_two && diff_filespec_is_binary(two)) )) { + struct strbuf sb = STRBUF_INIT; if (!one->data && !two->data && S_ISREG(one->mode) && S_ISREG(two->mode) && - !DIFF_OPT_TST(o, BINARY)) { + !o->flags.binary) { if (!oidcmp(&one->oid, &two->oid)) { if (must_show_header) - fprintf(o->file, "%s", header.buf); + emit_diff_symbol(o, DIFF_SYMBOL_HEADER, + header.buf, header.len, + 0); goto free_ab_and_return; } - fprintf(o->file, "%s", header.buf); - fprintf(o->file, "%sBinary files %s and %s differ\n", - line_prefix, lbl[0], lbl[1]); + emit_diff_symbol(o, DIFF_SYMBOL_HEADER, + header.buf, header.len, 0); + strbuf_addf(&sb, "%sBinary files %s and %s differ\n", + diff_line_prefix(o), lbl[0], lbl[1]); + emit_diff_symbol(o, DIFF_SYMBOL_BINARY_FILES, + sb.buf, sb.len, 0); + strbuf_release(&sb); goto free_ab_and_return; } if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0) @@ -2470,16 +3161,21 @@ static void builtin_diff(const char *name_a, if (mf1.size == mf2.size && !memcmp(mf1.ptr, mf2.ptr, mf1.size)) { if (must_show_header) - fprintf(o->file, "%s", header.buf); + emit_diff_symbol(o, DIFF_SYMBOL_HEADER, + header.buf, header.len, 0); goto free_ab_and_return; } - fprintf(o->file, "%s", header.buf); + emit_diff_symbol(o, DIFF_SYMBOL_HEADER, header.buf, header.len, 0); strbuf_reset(&header); - if (DIFF_OPT_TST(o, BINARY)) - emit_binary_diff(o->file, &mf1, &mf2, line_prefix); - else - fprintf(o->file, "%sBinary files %s and %s differ\n", - line_prefix, lbl[0], lbl[1]); + if (o->flags.binary) + emit_binary_diff(o, &mf1, &mf2); + else { + strbuf_addf(&sb, "%sBinary files %s and %s differ\n", + diff_line_prefix(o), lbl[0], lbl[1]); + emit_diff_symbol(o, DIFF_SYMBOL_BINARY_FILES, + sb.buf, sb.len, 0); + strbuf_release(&sb); + } o->found_changes = 1; } else { /* Crazy xdl interfaces.. */ @@ -2491,7 +3187,8 @@ static void builtin_diff(const char *name_a, const struct userdiff_funcname *pe; if (must_show_header) { - fprintf(o->file, "%s", header.buf); + emit_diff_symbol(o, DIFF_SYMBOL_HEADER, + header.buf, header.len, 0); strbuf_reset(&header); } @@ -2513,10 +3210,12 @@ static void builtin_diff(const char *name_a, ecbdata.opt = o; ecbdata.header = header.len ? &header : NULL; xpp.flags = o->xdl_opts; + xpp.anchors = o->anchors; + xpp.anchors_nr = o->anchors_nr; xecfg.ctxlen = o->context; xecfg.interhunkctxlen = o->interhunkcontext; xecfg.flags = XDL_EMIT_FUNCNAMES; - if (DIFF_OPT_TST(o, FUNCCONTEXT)) + if (o->flags.funccontext) xecfg.flags |= XDL_EMIT_FUNCCONTEXT; if (pe) xdiff_set_find_func(&xecfg, pe->pattern, pe->cflags); @@ -2605,6 +3304,8 @@ static void builtin_diffstat(const char *name_a, const char *name_b, memset(&xpp, 0, sizeof(xpp)); memset(&xecfg, 0, sizeof(xecfg)); xpp.flags = o->xdl_opts; + xpp.anchors = o->anchors; + xpp.anchors_nr = o->anchors_nr; xecfg.ctxlen = o->context; xecfg.interhunkctxlen = o->interhunkcontext; if (xdi_diff_outf(&mf1, &mf2, diffstat_consume, diffstat, @@ -2681,7 +3382,7 @@ static void builtin_checkdiff(const char *name_a, const char *name_b, diff_free_filespec_data(one); diff_free_filespec_data(two); if (data.status) - DIFF_OPT_SET(o, CHECK_FAILED); + o->flags.check_failed = 1; } struct diff_filespec *alloc_filespec(const char *path) @@ -2702,13 +3403,13 @@ void free_filespec(struct diff_filespec *spec) } } -void fill_filespec(struct diff_filespec *spec, const unsigned char *sha1, - int sha1_valid, unsigned short mode) +void fill_filespec(struct diff_filespec *spec, const struct object_id *oid, + int oid_valid, unsigned short mode) { if (mode) { spec->mode = canon_mode(mode); - hashcpy(spec->oid.hash, sha1); - spec->oid_valid = sha1_valid; + oidcpy(&spec->oid, oid); + spec->oid_valid = oid_valid; } } @@ -2717,7 +3418,7 @@ void fill_filespec(struct diff_filespec *spec, const unsigned char *sha1, * the work tree has that object contents, return true, so that * prepare_temp_file() does not have to inflate and extract. */ -static int reuse_worktree_file(const char *name, const unsigned char *sha1, int want_file) +static int reuse_worktree_file(const char *name, const struct object_id *oid, int want_file) { const struct cache_entry *ce; struct stat st; @@ -2748,14 +3449,14 @@ static int reuse_worktree_file(const char *name, const unsigned char *sha1, int * objects however would tend to be slower as they need * to be individually opened and inflated. */ - if (!FAST_WORKING_DIRECTORY && !want_file && has_sha1_pack(sha1)) + if (!FAST_WORKING_DIRECTORY && !want_file && has_sha1_pack(oid->hash)) return 0; /* * Similarly, if we'd have to convert the file contents anyway, that * makes the optimization not worthwhile. */ - if (!want_file && would_convert_to_git(name)) + if (!want_file && would_convert_to_git(&the_index, name)) return 0; len = strlen(name); @@ -2768,7 +3469,7 @@ static int reuse_worktree_file(const char *name, const unsigned char *sha1, int * This is not the sha1 we are looking for, or * unreusable because it is not a regular file. */ - if (hashcmp(sha1, ce->oid.hash) || !S_ISREG(ce->ce_mode)) + if (oidcmp(oid, &ce->oid) || !S_ISREG(ce->ce_mode)) return 0; /* @@ -2842,20 +3543,18 @@ int diff_populate_filespec(struct diff_filespec *s, unsigned int flags) return diff_populate_gitlink(s, size_only); if (!s->oid_valid || - reuse_worktree_file(s->path, s->oid.hash, 0)) { + reuse_worktree_file(s->path, &s->oid, 0)) { struct strbuf buf = STRBUF_INIT; struct stat st; int fd; if (lstat(s->path, &st) < 0) { - if (errno == ENOENT) { - err_empty: - err = -1; - empty: - s->data = (char *)""; - s->size = 0; - return err; - } + err_empty: + err = -1; + empty: + s->data = (char *)""; + s->size = 0; + return err; } s->size = xsize_t(st.st_size); if (!s->size) @@ -2877,7 +3576,7 @@ int diff_populate_filespec(struct diff_filespec *s, unsigned int flags) * point if the path requires us to run the content * conversion. */ - if (size_only && !would_convert_to_git(s->path)) + if (size_only && !would_convert_to_git(&the_index, s->path)) return 0; /* @@ -2904,7 +3603,7 @@ int diff_populate_filespec(struct diff_filespec *s, unsigned int flags) /* * Convert from working tree format to canonical git format */ - if (convert_to_git(s->path, s->data, s->size, &buf, crlf_warn)) { + if (convert_to_git(&the_index, s->path, s->data, s->size, &buf, crlf_warn)) { size_t size = 0; munmap(s->data, s->size); s->should_munmap = 0; @@ -2951,8 +3650,7 @@ void diff_free_filespec_blob(struct diff_filespec *s) void diff_free_filespec_data(struct diff_filespec *s) { diff_free_filespec_blob(s); - free(s->cnt_data); - s->cnt_data = NULL; + FREE_AND_NULL(s->cnt_data); } static void prep_temp_blob(const char *path, struct diff_tempfile *temp, @@ -2961,7 +3659,6 @@ static void prep_temp_blob(const char *path, struct diff_tempfile *temp, const struct object_id *oid, int mode) { - int fd; struct strbuf buf = STRBUF_INIT; struct strbuf template = STRBUF_INIT; char *path_dup = xstrdup(path); @@ -2971,18 +3668,18 @@ static void prep_temp_blob(const char *path, struct diff_tempfile *temp, strbuf_addstr(&template, "XXXXXX_"); strbuf_addstr(&template, base); - fd = mks_tempfile_ts(&temp->tempfile, template.buf, strlen(base) + 1); - if (fd < 0) + temp->tempfile = mks_tempfile_ts(template.buf, strlen(base) + 1); + if (!temp->tempfile) die_errno("unable to create temp-file"); if (convert_to_working_tree(path, (const char *)blob, (size_t)size, &buf)) { blob = buf.buf; size = buf.len; } - if (write_in_full(fd, blob, size) != size) + if (write_in_full(temp->tempfile->fd, blob, size) < 0 || + close_tempfile_gently(temp->tempfile)) die_errno("unable to write temp-file"); - close_tempfile(&temp->tempfile); - temp->name = get_tempfile_path(&temp->tempfile); + temp->name = get_tempfile_path(temp->tempfile); oid_to_hex_r(temp->hex, oid); xsnprintf(temp->mode, sizeof(temp->mode), "%06o", mode); strbuf_release(&buf); @@ -3008,7 +3705,7 @@ static struct diff_tempfile *prepare_temp_file(const char *name, if (!S_ISGITLINK(one->mode) && (!one->oid_valid || - reuse_worktree_file(name, one->oid.hash, 1))) { + reuse_worktree_file(name, &one->oid, 1))) { struct stat st; if (lstat(name, &st) < 0) { if (errno == ENOENT) @@ -3030,13 +3727,13 @@ static struct diff_tempfile *prepare_temp_file(const char *name, /* we can borrow from the file in the work tree */ temp->name = name; if (!one->oid_valid) - sha1_to_hex_r(temp->hex, null_sha1); + oid_to_hex_r(temp->hex, &null_oid); else oid_to_hex_r(temp->hex, &one->oid); /* Even though we may sometimes borrow the * contents from the work tree, we always want * one->mode. mode is trustworthy even when - * !(one->sha1_valid), as long as + * !(one->oid_valid), as long as * DIFF_FILE_VALID(one). */ xsnprintf(temp->mode, sizeof(temp->mode), "%06o", one->mode); @@ -3177,9 +3874,9 @@ static void fill_metainfo(struct strbuf *msg, *must_show_header = 0; } if (one && two && oidcmp(&one->oid, &two->oid)) { - int abbrev = DIFF_OPT_TST(o, FULL_INDEX) ? 40 : DEFAULT_ABBREV; + int abbrev = o->flags.full_index ? 40 : DEFAULT_ABBREV; - if (DIFF_OPT_TST(o, BINARY)) { + if (o->flags.binary) { mmfile_t mf; if ((!fill_mmfile(&mf, one) && diff_filespec_is_binary(one)) || (!fill_mmfile(&mf, two) && diff_filespec_is_binary(two))) @@ -3209,7 +3906,7 @@ static void run_diff_cmd(const char *pgm, int must_show_header = 0; - if (DIFF_OPT_TST(o, ALLOW_EXTERNAL)) { + if (o->flags.allow_external) { struct userdiff_driver *drv = userdiff_find_by_path(attr_path); if (drv && drv->external) pgm = drv->external; @@ -3239,7 +3936,7 @@ static void run_diff_cmd(const char *pgm, fprintf(o->file, "* Unmerged path %s\n", name); } -static void diff_fill_sha1_info(struct diff_filespec *one) +static void diff_fill_oid_info(struct diff_filespec *one) { if (DIFF_FILE_VALID(one)) { if (!one->oid_valid) { @@ -3250,7 +3947,7 @@ static void diff_fill_sha1_info(struct diff_filespec *one) } if (lstat(one->path, &st) < 0) die_errno("stat '%s'", one->path); - if (index_path(one->oid.hash, one->path, &st, 0)) + if (index_path(&one->oid, one->path, &st, 0)) die("cannot hash %s", one->path); } } @@ -3283,13 +3980,13 @@ static void run_diff(struct diff_filepair *p, struct diff_options *o) const char *other; const char *attr_path; - name = p->one->path; - other = (strcmp(name, p->two->path) ? p->two->path : NULL); + name = one->path; + other = (strcmp(name, two->path) ? two->path : NULL); attr_path = name; if (o->prefix_length) strip_prefix(o->prefix_length, &name, &other); - if (!DIFF_OPT_TST(o, ALLOW_EXTERNAL)) + if (!o->flags.allow_external) pgm = NULL; if (DIFF_PAIR_UNMERGED(p)) { @@ -3298,8 +3995,8 @@ static void run_diff(struct diff_filepair *p, struct diff_options *o) return; } - diff_fill_sha1_info(one); - diff_fill_sha1_info(two); + diff_fill_oid_info(one); + diff_fill_oid_info(two); if (!pgm && DIFF_FILE_VALID(one) && DIFF_FILE_VALID(two) && @@ -3344,8 +4041,8 @@ static void run_diffstat(struct diff_filepair *p, struct diff_options *o, if (o->prefix_length) strip_prefix(o->prefix_length, &name, &other); - diff_fill_sha1_info(p->one); - diff_fill_sha1_info(p->two); + diff_fill_oid_info(p->one); + diff_fill_oid_info(p->two); builtin_diffstat(name, other, p->one, p->two, diffstat, o, p); } @@ -3368,8 +4065,8 @@ static void run_checkdiff(struct diff_filepair *p, struct diff_options *o) if (o->prefix_length) strip_prefix(o->prefix_length, &name, &other); - diff_fill_sha1_info(p->one); - diff_fill_sha1_info(p->two); + diff_fill_oid_info(p->one); + diff_fill_oid_info(p->two); builtin_checkdiff(name, other, attr_path, p->one, p->two, o); } @@ -3388,7 +4085,7 @@ void diff_setup(struct diff_options *options) options->context = diff_context_default; options->interhunkcontext = diff_interhunk_context_default; options->ws_error_highlight = ws_error_highlight_default; - DIFF_OPT_SET(options, RENAME_EMPTY); + options->flags.rename_empty = 1; /* pathchange left =NULL by default */ options->change = diff_change; @@ -3407,6 +4104,8 @@ void diff_setup(struct diff_options *options) options->a_prefix = "a/"; options->b_prefix = "b/"; } + + options->color_moved = diff_color_moved_default; } void diff_setup_done(struct diff_options *options) @@ -3434,17 +4133,15 @@ void diff_setup_done(struct diff_options *options) * inside contents. */ - if (DIFF_XDL_TST(options, IGNORE_WHITESPACE) || - DIFF_XDL_TST(options, IGNORE_WHITESPACE_CHANGE) || - DIFF_XDL_TST(options, IGNORE_WHITESPACE_AT_EOL)) - DIFF_OPT_SET(options, DIFF_FROM_CONTENTS); + if ((options->xdl_opts & XDF_WHITESPACE_FLAGS)) + options->flags.diff_from_contents = 1; else - DIFF_OPT_CLR(options, DIFF_FROM_CONTENTS); + options->flags.diff_from_contents = 0; - if (DIFF_OPT_TST(options, FIND_COPIES_HARDER)) + if (options->flags.find_copies_harder) options->detect_rename = DIFF_DETECT_COPY; - if (!DIFF_OPT_TST(options, RELATIVE_NAME)) + if (!options->flags.relative_name) options->prefix = NULL; if (options->prefix) options->prefix_length = strlen(options->prefix); @@ -3474,18 +4171,18 @@ void diff_setup_done(struct diff_options *options) DIFF_FORMAT_DIRSTAT | DIFF_FORMAT_SUMMARY | DIFF_FORMAT_CHECKDIFF)) - DIFF_OPT_SET(options, RECURSIVE); + options->flags.recursive = 1; /* * Also pickaxe would not work very well if you do not say recursive */ if (options->pickaxe) - DIFF_OPT_SET(options, RECURSIVE); + options->flags.recursive = 1; /* * When patches are generated, submodules diffed against the work tree * must be checked for dirtiness too so it can be shown in the output */ if (options->output_format & DIFF_FORMAT_PATCH) - DIFF_OPT_SET(options, DIRTY_SUBMODULES); + options->flags.dirty_submodules = 1; if (options->detect_rename && options->rename_limit < 0) options->rename_limit = diff_rename_limit_default; @@ -3507,15 +4204,18 @@ void diff_setup_done(struct diff_options *options) * to have found. It does not make sense not to return with * exit code in such a case either. */ - if (DIFF_OPT_TST(options, QUICK)) { + if (options->flags.quick) { options->output_format = DIFF_FORMAT_NO_OUTPUT; - DIFF_OPT_SET(options, EXIT_WITH_STATUS); + options->flags.exit_with_status = 1; } options->diff_path_counter = 0; - if (DIFF_OPT_TST(options, FOLLOW_RENAMES) && options->pathspec.nr != 1) + if (options->flags.follow_renames && options->pathspec.nr != 1) die(_("--follow requires exactly one pathspec")); + + if (!options->use_color || external_diff()) + options->color_moved = 0; } static int opt_arg(const char *arg, int arg_short, const char *arg_long, int *val) @@ -3812,17 +4512,12 @@ int diff_opt_parse(struct diff_options *options, options->output_format |= DIFF_FORMAT_NUMSTAT; else if (!strcmp(arg, "--shortstat")) options->output_format |= DIFF_FORMAT_SHORTSTAT; - else if (!strcmp(arg, "-X") || !strcmp(arg, "--dirstat")) - return parse_dirstat_opt(options, ""); - else if (skip_prefix(arg, "-X", &arg)) - return parse_dirstat_opt(options, arg); - else if (skip_prefix(arg, "--dirstat=", &arg)) + else if (skip_prefix(arg, "-X", &arg) || + skip_to_optional_arg(arg, "--dirstat", &arg)) return parse_dirstat_opt(options, arg); else if (!strcmp(arg, "--cumulative")) return parse_dirstat_opt(options, "cumulative"); - else if (!strcmp(arg, "--dirstat-by-file")) - return parse_dirstat_opt(options, "files"); - else if (skip_prefix(arg, "--dirstat-by-file=", &arg)) { + else if (skip_to_optional_arg(arg, "--dirstat-by-file", &arg)) { parse_dirstat_opt(options, "files"); return parse_dirstat_opt(options, arg); } @@ -3844,13 +4539,13 @@ int diff_opt_parse(struct diff_options *options, return stat_opt(options, av); /* renames options */ - else if (starts_with(arg, "-B") || starts_with(arg, "--break-rewrites=") || - !strcmp(arg, "--break-rewrites")) { + else if (starts_with(arg, "-B") || + skip_to_optional_arg(arg, "--break-rewrites", NULL)) { if ((options->break_opt = diff_scoreopt_parse(arg)) == -1) return error("invalid argument to -B: %s", arg+2); } - else if (starts_with(arg, "-M") || starts_with(arg, "--find-renames=") || - !strcmp(arg, "--find-renames")) { + else if (starts_with(arg, "-M") || + skip_to_optional_arg(arg, "--find-renames", NULL)) { if ((options->rename_score = diff_scoreopt_parse(arg)) == -1) return error("invalid argument to -M: %s", arg+2); options->detect_rename = DIFF_DETECT_RENAME; @@ -3858,10 +4553,10 @@ int diff_opt_parse(struct diff_options *options, else if (!strcmp(arg, "-D") || !strcmp(arg, "--irreversible-delete")) { options->irreversible_delete = 1; } - else if (starts_with(arg, "-C") || starts_with(arg, "--find-copies=") || - !strcmp(arg, "--find-copies")) { + else if (starts_with(arg, "-C") || + skip_to_optional_arg(arg, "--find-copies", NULL)) { if (options->detect_rename == DIFF_DETECT_COPY) - DIFF_OPT_SET(options, FIND_COPIES_HARDER); + options->flags.find_copies_harder = 1; if ((options->rename_score = diff_scoreopt_parse(arg)) == -1) return error("invalid argument to -C: %s", arg+2); options->detect_rename = DIFF_DETECT_COPY; @@ -3869,14 +4564,13 @@ int diff_opt_parse(struct diff_options *options, else if (!strcmp(arg, "--no-renames")) options->detect_rename = 0; else if (!strcmp(arg, "--rename-empty")) - DIFF_OPT_SET(options, RENAME_EMPTY); + options->flags.rename_empty = 1; else if (!strcmp(arg, "--no-rename-empty")) - DIFF_OPT_CLR(options, RENAME_EMPTY); - else if (!strcmp(arg, "--relative")) - DIFF_OPT_SET(options, RELATIVE_NAME); - else if (skip_prefix(arg, "--relative=", &arg)) { - DIFF_OPT_SET(options, RELATIVE_NAME); - options->prefix = arg; + options->flags.rename_empty = 0; + else if (skip_to_optional_arg_default(arg, "--relative", &arg, NULL)) { + options->flags.relative_name = 1; + if (arg) + options->prefix = arg; } /* xdiff options */ @@ -3890,15 +4584,26 @@ int diff_opt_parse(struct diff_options *options, DIFF_XDL_SET(options, IGNORE_WHITESPACE_CHANGE); else if (!strcmp(arg, "--ignore-space-at-eol")) DIFF_XDL_SET(options, IGNORE_WHITESPACE_AT_EOL); + else if (!strcmp(arg, "--ignore-cr-at-eol")) + DIFF_XDL_SET(options, IGNORE_CR_AT_EOL); else if (!strcmp(arg, "--ignore-blank-lines")) DIFF_XDL_SET(options, IGNORE_BLANK_LINES); else if (!strcmp(arg, "--indent-heuristic")) DIFF_XDL_SET(options, INDENT_HEURISTIC); else if (!strcmp(arg, "--no-indent-heuristic")) DIFF_XDL_CLR(options, INDENT_HEURISTIC); - else if (!strcmp(arg, "--patience")) + else if (!strcmp(arg, "--patience")) { + int i; options->xdl_opts = DIFF_WITH_ALG(options, PATIENCE_DIFF); - else if (!strcmp(arg, "--histogram")) + /* + * Both --patience and --anchored use PATIENCE_DIFF + * internally, so remove any anchors previously + * specified. + */ + for (i = 0; i < options->anchors_nr; i++) + free(options->anchors[i]); + options->anchors_nr = 0; + } else if (!strcmp(arg, "--histogram")) options->xdl_opts = DIFF_WITH_ALG(options, HISTOGRAM_DIFF); else if ((argcount = parse_long_opt("diff-algorithm", av, &optarg))) { long value = parse_algorithm_value(optarg); @@ -3910,29 +4615,32 @@ int diff_opt_parse(struct diff_options *options, options->xdl_opts &= ~XDF_DIFF_ALGORITHM_MASK; options->xdl_opts |= value; return argcount; + } else if (skip_prefix(arg, "--anchored=", &arg)) { + options->xdl_opts = DIFF_WITH_ALG(options, PATIENCE_DIFF); + ALLOC_GROW(options->anchors, options->anchors_nr + 1, + options->anchors_alloc); + options->anchors[options->anchors_nr++] = xstrdup(arg); } /* flags options */ else if (!strcmp(arg, "--binary")) { enable_patch_output(&options->output_format); - DIFF_OPT_SET(options, BINARY); + options->flags.binary = 1; } else if (!strcmp(arg, "--full-index")) - DIFF_OPT_SET(options, FULL_INDEX); + options->flags.full_index = 1; else if (!strcmp(arg, "-a") || !strcmp(arg, "--text")) - DIFF_OPT_SET(options, TEXT); + options->flags.text = 1; else if (!strcmp(arg, "-R")) - DIFF_OPT_SET(options, REVERSE_DIFF); + options->flags.reverse_diff = 1; else if (!strcmp(arg, "--find-copies-harder")) - DIFF_OPT_SET(options, FIND_COPIES_HARDER); + options->flags.find_copies_harder = 1; else if (!strcmp(arg, "--follow")) - DIFF_OPT_SET(options, FOLLOW_RENAMES); + options->flags.follow_renames = 1; else if (!strcmp(arg, "--no-follow")) { - DIFF_OPT_CLR(options, FOLLOW_RENAMES); - DIFF_OPT_CLR(options, DEFAULT_FOLLOW_RENAMES); - } else if (!strcmp(arg, "--color")) - options->use_color = 1; - else if (skip_prefix(arg, "--color=", &arg)) { + options->flags.follow_renames = 0; + options->flags.default_follow_renames = 0; + } else if (skip_to_optional_arg_default(arg, "--color", &arg, "always")) { int value = git_config_colorbool(NULL, arg); if (value < 0) return error("option `color' expects \"always\", \"auto\", or \"never\""); @@ -3940,14 +4648,21 @@ int diff_opt_parse(struct diff_options *options, } else if (!strcmp(arg, "--no-color")) options->use_color = 0; - else if (!strcmp(arg, "--color-words")) { - options->use_color = 1; - options->word_diff = DIFF_WORDS_COLOR; - } - else if (skip_prefix(arg, "--color-words=", &arg)) { + else if (!strcmp(arg, "--color-moved")) { + if (diff_color_moved_default) + options->color_moved = diff_color_moved_default; + if (options->color_moved == COLOR_MOVED_NO) + options->color_moved = COLOR_MOVED_DEFAULT; + } else if (!strcmp(arg, "--no-color-moved")) + options->color_moved = COLOR_MOVED_NO; + else if (skip_prefix(arg, "--color-moved=", &arg)) { + int cm = parse_color_moved(arg); + if (cm < 0) + die("bad --color-moved argument: %s", arg); + options->color_moved = cm; + } else if (skip_to_optional_arg_default(arg, "--color-words", &options->word_regex, NULL)) { options->use_color = 1; options->word_diff = DIFF_WORDS_COLOR; - options->word_regex = arg; } else if (!strcmp(arg, "--word-diff")) { if (options->word_diff == DIFF_WORDS_NONE) @@ -3974,26 +4689,22 @@ int diff_opt_parse(struct diff_options *options, return argcount; } else if (!strcmp(arg, "--exit-code")) - DIFF_OPT_SET(options, EXIT_WITH_STATUS); + options->flags.exit_with_status = 1; else if (!strcmp(arg, "--quiet")) - DIFF_OPT_SET(options, QUICK); + options->flags.quick = 1; else if (!strcmp(arg, "--ext-diff")) - DIFF_OPT_SET(options, ALLOW_EXTERNAL); + options->flags.allow_external = 1; else if (!strcmp(arg, "--no-ext-diff")) - DIFF_OPT_CLR(options, ALLOW_EXTERNAL); - else if (!strcmp(arg, "--textconv")) - DIFF_OPT_SET(options, ALLOW_TEXTCONV); - else if (!strcmp(arg, "--no-textconv")) - DIFF_OPT_CLR(options, ALLOW_TEXTCONV); - else if (!strcmp(arg, "--ignore-submodules")) { - DIFF_OPT_SET(options, OVERRIDE_SUBMODULE_CONFIG); - handle_ignore_submodules_arg(options, "all"); - } else if (skip_prefix(arg, "--ignore-submodules=", &arg)) { - DIFF_OPT_SET(options, OVERRIDE_SUBMODULE_CONFIG); + options->flags.allow_external = 0; + else if (!strcmp(arg, "--textconv")) { + options->flags.allow_textconv = 1; + options->flags.textconv_set_via_cmdline = 1; + } else if (!strcmp(arg, "--no-textconv")) + options->flags.allow_textconv = 0; + else if (skip_to_optional_arg_default(arg, "--ignore-submodules", &arg, "all")) { + options->flags.override_submodule_config = 1; handle_ignore_submodules_arg(options, arg); - } else if (!strcmp(arg, "--submodule")) - options->submodule_format = DIFF_SUBMODULE_LOG; - else if (skip_prefix(arg, "--submodule=", &arg)) + } else if (skip_to_optional_arg_default(arg, "--submodule", &arg, "log")) return parse_submodule_opt(options, arg); else if (skip_prefix(arg, "--ws-error-highlight=", &arg)) return parse_ws_error_highlight_opt(options, arg); @@ -4064,16 +4775,14 @@ int diff_opt_parse(struct diff_options *options, &options->interhunkcontext)) ; else if (!strcmp(arg, "-W")) - DIFF_OPT_SET(options, FUNCCONTEXT); + options->flags.funccontext = 1; else if (!strcmp(arg, "--function-context")) - DIFF_OPT_SET(options, FUNCCONTEXT); + options->flags.funccontext = 1; else if (!strcmp(arg, "--no-function-context")) - DIFF_OPT_CLR(options, FUNCCONTEXT); + options->flags.funccontext = 0; else if ((argcount = parse_long_opt("output", av, &optarg))) { char *path = prefix_filename(prefix, optarg); - options->file = fopen(path, "w"); - if (!options->file) - die_errno("Could not open '%s'", path); + options->file = xfopen(path, "w"); options->close_file = 1; if (options->use_color != GIT_COLOR_ALWAYS) options->use_color = GIT_COLOR_NEVER; @@ -4193,14 +4902,20 @@ const char *diff_aligned_abbrev(const struct object_id *oid, int len) int abblen; const char *abbrev; + /* Do we want all 40 hex characters? */ if (len == GIT_SHA1_HEXSZ) return oid_to_hex(oid); + /* An abbreviated value is fine, possibly followed by an ellipsis. */ abbrev = diff_abbrev_oid(oid, len); + + if (!print_sha1_ellipsis()) + return abbrev; + abblen = strlen(abbrev); /* - * In well-behaved cases, where the abbbreviated result is the + * In well-behaved cases, where the abbreviated result is the * same as the requested length, append three dots after the * abbreviation (hence the whole logic is limited to the case * where abblen < 37); when the actual abbreviated result is a @@ -4472,67 +5187,79 @@ static void flush_one_pair(struct diff_filepair *p, struct diff_options *opt) } } -static void show_file_mode_name(FILE *file, const char *newdelete, struct diff_filespec *fs) +static void show_file_mode_name(struct diff_options *opt, const char *newdelete, struct diff_filespec *fs) { + struct strbuf sb = STRBUF_INIT; if (fs->mode) - fprintf(file, " %s mode %06o ", newdelete, fs->mode); + strbuf_addf(&sb, " %s mode %06o ", newdelete, fs->mode); else - fprintf(file, " %s ", newdelete); - write_name_quoted(fs->path, file, '\n'); -} + strbuf_addf(&sb, " %s ", newdelete); + quote_c_style(fs->path, &sb, NULL, 0); + strbuf_addch(&sb, '\n'); + emit_diff_symbol(opt, DIFF_SYMBOL_SUMMARY, + sb.buf, sb.len, 0); + strbuf_release(&sb); +} -static void show_mode_change(FILE *file, struct diff_filepair *p, int show_name, - const char *line_prefix) +static void show_mode_change(struct diff_options *opt, struct diff_filepair *p, + int show_name) { if (p->one->mode && p->two->mode && p->one->mode != p->two->mode) { - fprintf(file, "%s mode change %06o => %06o%c", line_prefix, p->one->mode, - p->two->mode, show_name ? ' ' : '\n'); + struct strbuf sb = STRBUF_INIT; + strbuf_addf(&sb, " mode change %06o => %06o", + p->one->mode, p->two->mode); if (show_name) { - write_name_quoted(p->two->path, file, '\n'); + strbuf_addch(&sb, ' '); + quote_c_style(p->two->path, &sb, NULL, 0); } + strbuf_addch(&sb, '\n'); + emit_diff_symbol(opt, DIFF_SYMBOL_SUMMARY, + sb.buf, sb.len, 0); + strbuf_release(&sb); } } -static void show_rename_copy(FILE *file, const char *renamecopy, struct diff_filepair *p, - const char *line_prefix) +static void show_rename_copy(struct diff_options *opt, const char *renamecopy, + struct diff_filepair *p) { + struct strbuf sb = STRBUF_INIT; char *names = pprint_rename(p->one->path, p->two->path); - - fprintf(file, " %s %s (%d%%)\n", renamecopy, names, similarity_index(p)); + strbuf_addf(&sb, " %s %s (%d%%)\n", + renamecopy, names, similarity_index(p)); free(names); - show_mode_change(file, p, 0, line_prefix); + emit_diff_symbol(opt, DIFF_SYMBOL_SUMMARY, + sb.buf, sb.len, 0); + show_mode_change(opt, p, 0); + strbuf_release(&sb); } static void diff_summary(struct diff_options *opt, struct diff_filepair *p) { - FILE *file = opt->file; - const char *line_prefix = diff_line_prefix(opt); - switch(p->status) { case DIFF_STATUS_DELETED: - fputs(line_prefix, file); - show_file_mode_name(file, "delete", p->one); + show_file_mode_name(opt, "delete", p->one); break; case DIFF_STATUS_ADDED: - fputs(line_prefix, file); - show_file_mode_name(file, "create", p->two); + show_file_mode_name(opt, "create", p->two); break; case DIFF_STATUS_COPIED: - fputs(line_prefix, file); - show_rename_copy(file, "copy", p, line_prefix); + show_rename_copy(opt, "copy", p); break; case DIFF_STATUS_RENAMED: - fputs(line_prefix, file); - show_rename_copy(file, "rename", p, line_prefix); + show_rename_copy(opt, "rename", p); break; default: if (p->score) { - fprintf(file, "%s rewrite ", line_prefix); - write_name_quoted(p->two->path, file, ' '); - fprintf(file, "(%d%%)\n", similarity_index(p)); + struct strbuf sb = STRBUF_INIT; + strbuf_addstr(&sb, " rewrite "); + quote_c_style(p->two->path, &sb, NULL, 0); + strbuf_addf(&sb, " (%d%%)\n", similarity_index(p)); + emit_diff_symbol(opt, DIFF_SYMBOL_SUMMARY, + sb.buf, sb.len, 0); + strbuf_release(&sb); } - show_mode_change(file, p, !p->score, line_prefix); + show_mode_change(opt, p, !p->score); break; } } @@ -4584,7 +5311,7 @@ static void patch_id_add_mode(git_SHA_CTX *ctx, unsigned mode) } /* returns 0 upon success, and writes result into sha1 */ -static int diff_get_patch_id(struct diff_options *options, unsigned char *sha1, int diff_header_only) +static int diff_get_patch_id(struct diff_options *options, struct object_id *oid, int diff_header_only) { struct diff_queue_struct *q = &diff_queued_diff; int i; @@ -4616,8 +5343,8 @@ static int diff_get_patch_id(struct diff_options *options, unsigned char *sha1, if (DIFF_PAIR_UNMERGED(p)) continue; - diff_fill_sha1_info(p->one); - diff_fill_sha1_info(p->two); + diff_fill_oid_info(p->one); + diff_fill_oid_info(p->two); len1 = remove_space(p->one->path, strlen(p->one->path)); len2 = remove_space(p->two->path, strlen(p->two->path)); @@ -4656,9 +5383,9 @@ static int diff_get_patch_id(struct diff_options *options, unsigned char *sha1, if (diff_filespec_is_binary(p->one) || diff_filespec_is_binary(p->two)) { git_SHA1_Update(&ctx, oid_to_hex(&p->one->oid), - 40); + GIT_SHA1_HEXSZ); git_SHA1_Update(&ctx, oid_to_hex(&p->two->oid), - 40); + GIT_SHA1_HEXSZ); continue; } @@ -4671,15 +5398,15 @@ static int diff_get_patch_id(struct diff_options *options, unsigned char *sha1, p->one->path); } - git_SHA1_Final(sha1, &ctx); + git_SHA1_Final(oid->hash, &ctx); return 0; } -int diff_flush_patch_id(struct diff_options *options, unsigned char *sha1, int diff_header_only) +int diff_flush_patch_id(struct diff_options *options, struct object_id *oid, int diff_header_only) { struct diff_queue_struct *q = &diff_queued_diff; int i; - int result = diff_get_patch_id(options, sha1, diff_header_only); + int result = diff_get_patch_id(options, oid, diff_header_only); for (i = 0; i < q->nr; i++) diff_free_filepair(q->queue[i]); @@ -4733,10 +5460,55 @@ void diff_warn_rename_limit(const char *varname, int needed, int degraded_cc) warning(_(rename_limit_warning)); else return; - if (0 < needed && needed < 32767) + if (0 < needed) warning(_(rename_limit_advice), varname, needed); } +static void diff_flush_patch_all_file_pairs(struct diff_options *o) +{ + int i; + static struct emitted_diff_symbols esm = EMITTED_DIFF_SYMBOLS_INIT; + struct diff_queue_struct *q = &diff_queued_diff; + + if (WSEH_NEW & WS_RULE_MASK) + die("BUG: WS rules bit mask overlaps with diff symbol flags"); + + if (o->color_moved) + o->emitted_symbols = &esm; + + for (i = 0; i < q->nr; i++) { + struct diff_filepair *p = q->queue[i]; + if (check_pair_status(p)) + diff_flush_patch(p, o); + } + + if (o->emitted_symbols) { + if (o->color_moved) { + struct hashmap add_lines, del_lines; + + hashmap_init(&del_lines, + (hashmap_cmp_fn)moved_entry_cmp, o, 0); + hashmap_init(&add_lines, + (hashmap_cmp_fn)moved_entry_cmp, o, 0); + + add_lines_to_move_detection(o, &add_lines, &del_lines); + mark_color_as_moved(o, &add_lines, &del_lines); + if (o->color_moved == COLOR_MOVED_ZEBRA_DIM) + dim_moved_lines(o); + + hashmap_free(&add_lines, 0); + hashmap_free(&del_lines, 0); + } + + for (i = 0; i < esm.nr; i++) + emit_diff_symbol_from_struct(o, &esm.buf[i]); + + for (i = 0; i < esm.nr; i++) + free((void *)esm.buf[i].line); + } + esm.nr = 0; +} + void diff_flush(struct diff_options *options) { struct diff_queue_struct *q = &diff_queued_diff; @@ -4763,7 +5535,7 @@ void diff_flush(struct diff_options *options) separator++; } - if (output_format & DIFF_FORMAT_DIRSTAT && DIFF_OPT_TST(options, DIRSTAT_BY_LINE)) + if (output_format & DIFF_FORMAT_DIRSTAT && options->flags.dirstat_by_line) dirstat_by_line = 1; if (output_format & (DIFF_FORMAT_DIFFSTAT|DIFF_FORMAT_SHORTSTAT|DIFF_FORMAT_NUMSTAT) || @@ -4798,8 +5570,8 @@ void diff_flush(struct diff_options *options) } if (output_format & DIFF_FORMAT_NO_OUTPUT && - DIFF_OPT_TST(options, EXIT_WITH_STATUS) && - DIFF_OPT_TST(options, DIFF_FROM_CONTENTS)) { + options->flags.exit_with_status && + options->flags.diff_from_contents) { /* * run diff_flush_patch for the exit status. setting * options->file to /dev/null should be safe, because we @@ -4807,10 +5579,9 @@ void diff_flush(struct diff_options *options) */ if (options->close_file) fclose(options->file); - options->file = fopen("/dev/null", "w"); - if (!options->file) - die_errno("Could not open /dev/null"); + options->file = xfopen("/dev/null", "w"); options->close_file = 1; + options->color_moved = 0; for (i = 0; i < q->nr; i++) { struct diff_filepair *p = q->queue[i]; if (check_pair_status(p)) @@ -4822,20 +5593,14 @@ void diff_flush(struct diff_options *options) if (output_format & DIFF_FORMAT_PATCH) { if (separator) { - fprintf(options->file, "%s%c", - diff_line_prefix(options), - options->line_termination); - if (options->stat_sep) { + emit_diff_symbol(options, DIFF_SYMBOL_SEPARATOR, NULL, 0, 0); + if (options->stat_sep) /* attach patch instead of inline */ - fputs(options->stat_sep, options->file); - } + emit_diff_symbol(options, DIFF_SYMBOL_STAT_SEP, + NULL, 0, 0); } - for (i = 0; i < q->nr; i++) { - struct diff_filepair *p = q->queue[i]; - if (check_pair_status(p)) - diff_flush_patch(p, options); - } + diff_flush_patch_all_file_pairs(options); } if (output_format & DIFF_FORMAT_CALLBACK) @@ -4854,11 +5619,11 @@ free_queue: * diff_addremove/diff_change does not set the bit when * DIFF_FROM_CONTENTS is in effect (e.g. with -w). */ - if (DIFF_OPT_TST(options, DIFF_FROM_CONTENTS)) { + if (options->flags.diff_from_contents) { if (options->found_changes) - DIFF_OPT_SET(options, HAS_CHANGES); + options->flags.has_changes = 1; else - DIFF_OPT_CLR(options, HAS_CHANGES); + options->flags.has_changes = 0; } } @@ -4978,7 +5743,7 @@ static void diffcore_skip_stat_unmatch(struct diff_options *diffopt) * to determine how many paths were dirty only * due to stat info mismatch. */ - if (!DIFF_OPT_TST(diffopt, NO_INDEX)) + if (!diffopt->flags.no_index) diffopt->skip_stat_unmatch++; diff_free_filepair(p); } @@ -5027,10 +5792,10 @@ void diffcore_std(struct diff_options *options) diff_resolve_rename_copy(); diffcore_apply_filter(options); - if (diff_queued_diff.nr && !DIFF_OPT_TST(options, DIFF_FROM_CONTENTS)) - DIFF_OPT_SET(options, HAS_CHANGES); + if (diff_queued_diff.nr && !options->flags.diff_from_contents) + options->flags.has_changes = 1; else - DIFF_OPT_CLR(options, HAS_CHANGES); + options->flags.has_changes = 0; options->found_follow = 0; } @@ -5042,23 +5807,23 @@ int diff_result_code(struct diff_options *opt, int status) diff_warn_rename_limit("diff.renameLimit", opt->needed_rename_limit, opt->degraded_cc_to_c); - if (!DIFF_OPT_TST(opt, EXIT_WITH_STATUS) && + if (!opt->flags.exit_with_status && !(opt->output_format & DIFF_FORMAT_CHECKDIFF)) return status; - if (DIFF_OPT_TST(opt, EXIT_WITH_STATUS) && - DIFF_OPT_TST(opt, HAS_CHANGES)) + if (opt->flags.exit_with_status && + opt->flags.has_changes) result |= 01; if ((opt->output_format & DIFF_FORMAT_CHECKDIFF) && - DIFF_OPT_TST(opt, CHECK_FAILED)) + opt->flags.check_failed) result |= 02; return result; } int diff_can_quit_early(struct diff_options *opt) { - return (DIFF_OPT_TST(opt, QUICK) && + return (opt->flags.quick && !opt->filter && - DIFF_OPT_TST(opt, HAS_CHANGES)); + opt->flags.has_changes); } /* @@ -5070,10 +5835,10 @@ int diff_can_quit_early(struct diff_options *opt) static int is_submodule_ignored(const char *path, struct diff_options *options) { int ignored = 0; - unsigned orig_flags = options->flags; - if (!DIFF_OPT_TST(options, OVERRIDE_SUBMODULE_CONFIG)) + struct diff_flags orig_flags = options->flags; + if (!options->flags.override_submodule_config) set_diffopt_flags_from_submodule_config(options, path); - if (DIFF_OPT_TST(options, IGNORE_SUBMODULES)) + if (options->flags.ignore_submodules) ignored = 1; options->flags = orig_flags; return ignored; @@ -5081,8 +5846,8 @@ static int is_submodule_ignored(const char *path, struct diff_options *options) void diff_addremove(struct diff_options *options, int addremove, unsigned mode, - const unsigned char *sha1, - int sha1_valid, + const struct object_id *oid, + int oid_valid, const char *concatpath, unsigned dirty_submodule) { struct diff_filespec *one, *two; @@ -5102,7 +5867,7 @@ void diff_addremove(struct diff_options *options, * Before the final output happens, they are pruned after * merged into rename/copy pairs as appropriate. */ - if (DIFF_OPT_TST(options, REVERSE_DIFF)) + if (options->flags.reverse_diff) addremove = (addremove == '+' ? '-' : addremove == '-' ? '+' : addremove); @@ -5114,22 +5879,22 @@ void diff_addremove(struct diff_options *options, two = alloc_filespec(concatpath); if (addremove != '+') - fill_filespec(one, sha1, sha1_valid, mode); + fill_filespec(one, oid, oid_valid, mode); if (addremove != '-') { - fill_filespec(two, sha1, sha1_valid, mode); + fill_filespec(two, oid, oid_valid, mode); two->dirty_submodule = dirty_submodule; } diff_queue(&diff_queued_diff, one, two); - if (!DIFF_OPT_TST(options, DIFF_FROM_CONTENTS)) - DIFF_OPT_SET(options, HAS_CHANGES); + if (!options->flags.diff_from_contents) + options->flags.has_changes = 1; } void diff_change(struct diff_options *options, unsigned old_mode, unsigned new_mode, - const unsigned char *old_sha1, - const unsigned char *new_sha1, - int old_sha1_valid, int new_sha1_valid, + const struct object_id *old_oid, + const struct object_id *new_oid, + int old_oid_valid, int new_oid_valid, const char *concatpath, unsigned old_dirty_submodule, unsigned new_dirty_submodule) { @@ -5140,10 +5905,10 @@ void diff_change(struct diff_options *options, is_submodule_ignored(concatpath, options)) return; - if (DIFF_OPT_TST(options, REVERSE_DIFF)) { + if (options->flags.reverse_diff) { SWAP(old_mode, new_mode); - SWAP(old_sha1, new_sha1); - SWAP(old_sha1_valid, new_sha1_valid); + SWAP(old_oid, new_oid); + SWAP(old_oid_valid, new_oid_valid); SWAP(old_dirty_submodule, new_dirty_submodule); } @@ -5153,20 +5918,20 @@ void diff_change(struct diff_options *options, one = alloc_filespec(concatpath); two = alloc_filespec(concatpath); - fill_filespec(one, old_sha1, old_sha1_valid, old_mode); - fill_filespec(two, new_sha1, new_sha1_valid, new_mode); + fill_filespec(one, old_oid, old_oid_valid, old_mode); + fill_filespec(two, new_oid, new_oid_valid, new_mode); one->dirty_submodule = old_dirty_submodule; two->dirty_submodule = new_dirty_submodule; p = diff_queue(&diff_queued_diff, one, two); - if (DIFF_OPT_TST(options, DIFF_FROM_CONTENTS)) + if (options->flags.diff_from_contents) return; - if (DIFF_OPT_TST(options, QUICK) && options->skip_stat_unmatch && + if (options->flags.quick && options->skip_stat_unmatch && !diff_filespec_check_stat_unmatch(p)) return; - DIFF_OPT_SET(options, HAS_CHANGES); + options->flags.has_changes = 1; } struct diff_filepair *diff_unmerge(struct diff_options *options, const char *path) @@ -5244,7 +6009,7 @@ size_t fill_textconv(struct userdiff_driver *driver, if (driver->textconv_cache && df->oid_valid) { *outbuf = notes_cache_get(driver->textconv_cache, - df->oid.hash, + &df->oid, &size); if (*outbuf) return size; @@ -5256,7 +6021,7 @@ size_t fill_textconv(struct userdiff_driver *driver, if (driver->textconv_cache && df->oid_valid) { /* ignore errors, as we might be in a readonly repository */ - notes_cache_put(driver->textconv_cache, df->oid.hash, *outbuf, + notes_cache_put(driver->textconv_cache, &df->oid, *outbuf, size); /* * we could save up changes and flush them all at the end, @@ -5270,6 +6035,29 @@ size_t fill_textconv(struct userdiff_driver *driver, return size; } +int textconv_object(const char *path, + unsigned mode, + const struct object_id *oid, + int oid_valid, + char **buf, + unsigned long *buf_size) +{ + struct diff_filespec *df; + struct userdiff_driver *textconv; + + df = alloc_filespec(path); + fill_filespec(df, oid, oid_valid, mode); + textconv = get_textconv(df); + if (!textconv) { + free_filespec(df); + return 0; + } + + *buf_size = fill_textconv(textconv, df, buf); + free_filespec(df); + return 1; +} + void setup_diff_pager(struct diff_options *opt) { /* @@ -5281,7 +6069,7 @@ void setup_diff_pager(struct diff_options *opt) * and because it is easy to find people oneline advising "git diff * --exit-code" in hooks and other scripts, we do not do so. */ - if (!DIFF_OPT_TST(opt, EXIT_WITH_STATUS) && + if (!opt->flags.exit_with_status && check_pager_config("diff") != 0) setup_pager(); } |