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-rw-r--r--diff.c87
1 files changed, 43 insertions, 44 deletions
diff --git a/diff.c b/diff.c
index c1804efed..9053d4d1f 100644
--- a/diff.c
+++ b/diff.c
@@ -20,6 +20,7 @@
static int diff_detect_rename_default;
static int diff_rename_limit_default = 200;
+static int diff_suppress_blank_empty;
int diff_use_color_default = -1;
static const char *external_diff_cmd_cfg;
int diff_auto_refresh_index = 1;
@@ -181,6 +182,12 @@ int git_diff_basic_config(const char *var, const char *value, void *cb)
return 0;
}
+ /* like GNU diff's --suppress-blank-empty option */
+ if (!strcmp(var, "diff.suppress-blank-empty")) {
+ diff_suppress_blank_empty = git_config_bool(var, value);
+ return 0;
+ }
+
if (!prefixcmp(var, "diff.")) {
const char *ep = strrchr(var, '.');
if (ep != var + 4) {
@@ -383,7 +390,6 @@ static void diff_words_append(char *line, unsigned long len,
}
struct diff_words_data {
- struct xdiff_emit_state xm;
struct diff_words_buffer minus, plus;
FILE *file;
};
@@ -473,11 +479,8 @@ static void diff_words_show(struct diff_words_data *diff_words)
xpp.flags = XDF_NEED_MINIMAL;
xecfg.ctxlen = diff_words->minus.alloc + diff_words->plus.alloc;
- ecb.outf = xdiff_outf;
- ecb.priv = diff_words;
- diff_words->xm.consume = fn_out_diff_words_aux;
- xdi_diff(&minus, &plus, &xpp, &xecfg, &ecb);
-
+ xdi_diff_outf(&minus, &plus, fn_out_diff_words_aux, diff_words,
+ &xpp, &xecfg, &ecb);
free(minus.ptr);
free(plus.ptr);
diff_words->minus.text.size = diff_words->plus.text.size = 0;
@@ -491,7 +494,6 @@ static void diff_words_show(struct diff_words_data *diff_words)
typedef unsigned long (*sane_truncate_fn)(char *line, unsigned long len);
struct emit_callback {
- struct xdiff_emit_state xm;
int nparents, color_diff;
unsigned ws_rule;
sane_truncate_fn truncate;
@@ -525,13 +527,20 @@ const char *diff_get_color(int diff_use_color, enum color_diff ix)
static void emit_line(FILE *file, const char *set, const char *reset, const char *line, int len)
{
- int has_trailing_newline = (len > 0 && line[len-1] == '\n');
+ int has_trailing_newline, has_trailing_carriage_return;
+
+ has_trailing_newline = (len > 0 && line[len-1] == '\n');
if (has_trailing_newline)
len--;
+ has_trailing_carriage_return = (len > 0 && line[len-1] == '\r');
+ if (has_trailing_carriage_return)
+ len--;
fputs(set, file);
fwrite(line, len, 1, file);
fputs(reset, file);
+ if (has_trailing_carriage_return)
+ fputc('\r', file);
if (has_trailing_newline)
fputc('\n', file);
}
@@ -594,6 +603,12 @@ static void fn_out_consume(void *priv, char *line, unsigned long len)
ecbdata->label_path[0] = ecbdata->label_path[1] = NULL;
}
+ if (diff_suppress_blank_empty
+ && len == 2 && line[0] == ' ' && line[1] == '\n') {
+ line[0] = '\n';
+ len = 1;
+ }
+
/* This is not really necessary for now because
* this codepath only deals with two-way diffs.
*/
@@ -722,8 +737,6 @@ static char *pprint_rename(const char *a, const char *b)
}
struct diffstat_t {
- struct xdiff_emit_state xm;
-
int nr;
int alloc;
struct diffstat_file {
@@ -1086,7 +1099,7 @@ static void show_dirstat(struct diff_options *options)
dir.alloc = 0;
dir.nr = 0;
dir.percent = options->dirstat_percent;
- dir.cumulative = options->output_format & DIFF_FORMAT_CUMULATIVE;
+ dir.cumulative = DIFF_OPT_TST(options, DIRSTAT_CUMULATIVE);
changed = 0;
for (i = 0; i < q->nr; i++) {
@@ -1153,7 +1166,6 @@ static void free_diffstat_info(struct diffstat_t *diffstat)
}
struct checkdiff_t {
- struct xdiff_emit_state xm;
const char *filename;
int lineno;
struct diff_options *o;
@@ -1398,6 +1410,8 @@ static struct builtin_funcname_pattern {
const char *name;
const char *pattern;
} builtin_funcname_pattern[] = {
+ { "bibtex", "\\(@[a-zA-Z]\\{1,\\}[ \t]*{\\{0,1\\}[ \t]*[^ \t\"@',\\#}{~%]*\\).*$" },
+ { "html", "^\\s*\\(<[Hh][1-6]\\s.*>.*\\)$" },
{ "java", "!^[ ]*\\(catch\\|do\\|for\\|if\\|instanceof\\|"
"new\\|return\\|switch\\|throw\\|while\\)\n"
"^[ ]*\\(\\([ ]*"
@@ -1409,9 +1423,10 @@ static struct builtin_funcname_pattern {
"\\|"
"^\\(.*=[ \t]*\\(class\\|record\\).*\\)$"
},
- { "bibtex", "\\(@[a-zA-Z]\\{1,\\}[ \t]*{\\{0,1\\}[ \t]*[^ \t\"@',\\#}{~%]*\\).*$" },
- { "tex", "^\\(\\\\\\(\\(sub\\)*section\\|chapter\\|part\\)\\*\\{0,1\\}{.*\\)$" },
+ { "php", "^[\t ]*\\(\\(function\\|class\\).*\\)" },
+ { "python", "^\\s*\\(\\(class\\|def\\)\\s.*\\)$" },
{ "ruby", "^\\s*\\(\\(class\\|module\\|def\\)\\s.*\\)$" },
+ { "tex", "^\\(\\\\\\(\\(sub\\)*section\\|chapter\\|part\\)\\*\\{0,1\\}{.*\\)$" },
};
static const char *diff_funcname_pattern(struct diff_filespec *one)
@@ -1561,15 +1576,13 @@ static void builtin_diff(const char *name_a,
xecfg.ctxlen = strtoul(diffopts + 10, NULL, 10);
else if (!prefixcmp(diffopts, "-u"))
xecfg.ctxlen = strtoul(diffopts + 2, NULL, 10);
- ecb.outf = xdiff_outf;
- ecb.priv = &ecbdata;
- ecbdata.xm.consume = fn_out_consume;
if (DIFF_OPT_TST(o, COLOR_DIFF_WORDS)) {
ecbdata.diff_words =
xcalloc(1, sizeof(struct diff_words_data));
ecbdata.diff_words->file = o->file;
}
- xdi_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
+ xdi_diff_outf(&mf1, &mf2, fn_out_consume, &ecbdata,
+ &xpp, &xecfg, &ecb);
if (DIFF_OPT_TST(o, COLOR_DIFF_WORDS))
free_diff_words_data(&ecbdata);
}
@@ -1620,9 +1633,8 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
memset(&xecfg, 0, sizeof(xecfg));
xpp.flags = XDF_NEED_MINIMAL | o->xdl_opts;
- ecb.outf = xdiff_outf;
- ecb.priv = diffstat;
- xdi_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
+ xdi_diff_outf(&mf1, &mf2, diffstat_consume, diffstat,
+ &xpp, &xecfg, &ecb);
}
free_and_return:
@@ -1643,7 +1655,6 @@ static void builtin_checkdiff(const char *name_a, const char *name_b,
return;
memset(&data, 0, sizeof(data));
- data.xm.consume = checkdiff_consume;
data.filename = name_b ? name_b : name_a;
data.lineno = 0;
data.o = o;
@@ -1669,9 +1680,8 @@ static void builtin_checkdiff(const char *name_a, const char *name_b,
memset(&xecfg, 0, sizeof(xecfg));
xecfg.ctxlen = 1; /* at least one context line */
xpp.flags = XDF_NEED_MINIMAL;
- ecb.outf = xdiff_outf;
- ecb.priv = &data;
- xdi_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
+ xdi_diff_outf(&mf1, &mf2, checkdiff_consume, &data,
+ &xpp, &xecfg, &ecb);
if ((data.ws_rule & WS_TRAILING_SPACE) &&
data.trailing_blanks_start) {
@@ -2330,6 +2340,7 @@ void diff_setup(struct diff_options *options)
options->break_opt = -1;
options->rename_limit = -1;
options->dirstat_percent = 3;
+ DIFF_OPT_CLR(options, DIRSTAT_CUMULATIVE);
options->context = 3;
options->change = diff_change;
@@ -2426,13 +2437,6 @@ int diff_setup_done(struct diff_options *options)
DIFF_OPT_SET(options, EXIT_WITH_STATUS);
}
- /*
- * If we postprocess in diffcore, we cannot simply return
- * upon the first hit. We need to run diff as usual.
- */
- if (options->pickaxe || options->filter)
- DIFF_OPT_CLR(options, QUIET);
-
return 0;
}
@@ -2504,8 +2508,10 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
options->output_format |= DIFF_FORMAT_SHORTSTAT;
else if (opt_arg(arg, 'X', "dirstat", &options->dirstat_percent))
options->output_format |= DIFF_FORMAT_DIRSTAT;
- else if (!strcmp(arg, "--cumulative"))
- options->output_format |= DIFF_FORMAT_CUMULATIVE;
+ else if (!strcmp(arg, "--cumulative")) {
+ options->output_format |= DIFF_FORMAT_DIRSTAT;
+ DIFF_OPT_SET(options, DIRSTAT_CUMULATIVE);
+ }
else if (!strcmp(arg, "--check"))
options->output_format |= DIFF_FORMAT_CHECKDIFF;
else if (!strcmp(arg, "--summary"))
@@ -3061,7 +3067,6 @@ static void diff_summary(FILE *file, struct diff_filepair *p)
}
struct patch_id_t {
- struct xdiff_emit_state xm;
SHA_CTX *ctx;
int patchlen;
};
@@ -3106,7 +3111,6 @@ static int diff_get_patch_id(struct diff_options *options, unsigned char *sha1)
SHA1_Init(&ctx);
memset(&data, 0, sizeof(struct patch_id_t));
data.ctx = &ctx;
- data.xm.consume = patch_id_consume;
for (i = 0; i < q->nr; i++) {
xpparam_t xpp;
@@ -3171,9 +3175,8 @@ static int diff_get_patch_id(struct diff_options *options, unsigned char *sha1)
xpp.flags = XDF_NEED_MINIMAL;
xecfg.ctxlen = 3;
xecfg.flags = XDL_EMIT_FUNCNAMES;
- ecb.outf = xdiff_outf;
- ecb.priv = &data;
- xdi_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
+ xdi_diff_outf(&mf1, &mf2, patch_id_consume, &data,
+ &xpp, &xecfg, &ecb);
}
SHA1_Final(sha1, &ctx);
@@ -3250,7 +3253,6 @@ void diff_flush(struct diff_options *options)
struct diffstat_t diffstat;
memset(&diffstat, 0, sizeof(struct diffstat_t));
- diffstat.xm.consume = diffstat_consume;
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
if (check_pair_status(p))
@@ -3422,10 +3424,7 @@ static void diffcore_skip_stat_unmatch(struct diff_options *diffopt)
void diffcore_std(struct diff_options *options)
{
- if (DIFF_OPT_TST(options, QUIET))
- return;
-
- if (options->skip_stat_unmatch && !DIFF_OPT_TST(options, FIND_COPIES_HARDER))
+ if (options->skip_stat_unmatch)
diffcore_skip_stat_unmatch(options);
if (options->break_opt != -1)
diffcore_break(options->break_opt);
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-17 06:56:19 +0000