diff options
Diffstat (limited to 'apply.c')
| -rw-r--r-- | apply.c | 406 |
1 files changed, 209 insertions, 197 deletions
@@ -8,6 +8,7 @@ */ #include "cache.h" +#include "config.h" #include "blob.h" #include "delta.h" #include "diff.h" @@ -210,6 +211,7 @@ struct patch { unsigned ws_rule; int lines_added, lines_deleted; int score; + int extension_linenr; /* first line specifying delete/new/rename/copy */ unsigned int is_toplevel_relative:1; unsigned int inaccurate_eof:1; unsigned int is_binary:1; @@ -762,17 +764,6 @@ static char *find_name_traditional(struct apply_state *state, return find_name_common(state, line, def, p_value, line + len, 0); } -static int count_slashes(const char *cp) -{ - int cnt = 0; - char ch; - - while ((ch = *cp++)) - if (ch == '/') - cnt++; - return cnt; -} - /* * Given the string after "--- " or "+++ ", guess the appropriate * p_value for the given patch. @@ -985,8 +976,7 @@ static int gitdiff_verify_name(struct apply_state *state, } free(another); } else { - /* expect "/dev/null" */ - if (memcmp("/dev/null", line, 9) || line[9] != '\n') + if (!starts_with(line, "/dev/null\n")) return error(_("git apply: bad git-diff - expected /dev/null on line %d"), state->linenr); } @@ -1011,20 +1001,27 @@ static int gitdiff_newname(struct apply_state *state, DIFF_NEW_NAME); } +static int parse_mode_line(const char *line, int linenr, unsigned int *mode) +{ + char *end; + *mode = strtoul(line, &end, 8); + if (end == line || !isspace(*end)) + return error(_("invalid mode on line %d: %s"), linenr, line); + return 0; +} + static int gitdiff_oldmode(struct apply_state *state, const char *line, struct patch *patch) { - patch->old_mode = strtoul(line, NULL, 8); - return 0; + return parse_mode_line(line, state->linenr, &patch->old_mode); } static int gitdiff_newmode(struct apply_state *state, const char *line, struct patch *patch) { - patch->new_mode = strtoul(line, NULL, 8); - return 0; + return parse_mode_line(line, state->linenr, &patch->new_mode); } static int gitdiff_delete(struct apply_state *state, @@ -1138,7 +1135,7 @@ static int gitdiff_index(struct apply_state *state, memcpy(patch->new_sha1_prefix, line, len); patch->new_sha1_prefix[len] = 0; if (*ptr == ' ') - patch->old_mode = strtoul(ptr+1, NULL, 8); + return gitdiff_oldmode(state, ptr + 1, patch); return 0; } @@ -1322,6 +1319,18 @@ static char *git_header_name(struct apply_state *state, } } +static int check_header_line(struct apply_state *state, struct patch *patch) +{ + int extensions = (patch->is_delete == 1) + (patch->is_new == 1) + + (patch->is_rename == 1) + (patch->is_copy == 1); + if (extensions > 1) + return error(_("inconsistent header lines %d and %d"), + patch->extension_linenr, state->linenr); + if (extensions && !patch->extension_linenr) + patch->extension_linenr = state->linenr; + return 0; +} + /* Verify that we recognize the lines following a git header */ static int parse_git_header(struct apply_state *state, const char *line, @@ -1388,6 +1397,8 @@ static int parse_git_header(struct apply_state *state, res = p->fn(state, line + oplen, patch); if (res < 0) return -1; + if (check_header_line(state, patch)) + return -1; if (res > 0) return offset; break; @@ -1585,7 +1596,8 @@ static int find_header(struct apply_state *state, patch->old_name = xstrdup(patch->def_name); patch->new_name = xstrdup(patch->def_name); } - if (!patch->is_delete && !patch->new_name) { + if ((!patch->new_name && !patch->is_delete) || + (!patch->old_name && !patch->is_new)) { error(_("git diff header lacks filename information " "(line %d)"), state->linenr); return -128; @@ -2046,7 +2058,7 @@ static void prefix_one(struct apply_state *state, char **name) char *old_name = *name; if (!old_name) return; - *name = xstrdup(prefix_filename(state->prefix, state->prefix_length, *name)); + *name = prefix_filename(state->prefix, *name); free(old_name); } @@ -2267,7 +2279,7 @@ static int read_old_data(struct stat *st, const char *path, struct strbuf *buf) case S_IFREG: if (strbuf_read_file(buf, path, st->st_size) != st->st_size) return error(_("unable to open or read %s"), path); - convert_to_git(path, buf->buf, buf->len, buf, 0); + convert_to_git(&the_index, path, buf->buf, buf->len, buf, 0); return 0; default: return -1; @@ -3705,8 +3717,7 @@ static int check_preimage(struct apply_state *state, is_new: patch->is_new = 1; patch->is_delete = 0; - free(patch->old_name); - patch->old_name = NULL; + FREE_AND_NULL(patch->old_name); return 0; } @@ -3741,7 +3752,7 @@ static int check_to_create(struct apply_state *state, return 0; return EXISTS_IN_WORKTREE; - } else if ((errno != ENOENT) && (errno != ENOTDIR)) { + } else if (!is_missing_file_error(errno)) { return error_errno("%s", new_name); } return 0; @@ -4091,181 +4102,181 @@ static int build_fake_ancestor(struct apply_state *state, struct patch *list) res = write_locked_index(&result, &lock, COMMIT_LOCK); discard_index(&result); - if (res) - return error(_("could not write temporary index to %s"), - state->fake_ancestor); + if (res) + return error(_("could not write temporary index to %s"), + state->fake_ancestor); + + return 0; +} + +static void stat_patch_list(struct apply_state *state, struct patch *patch) +{ + int files, adds, dels; + + for (files = adds = dels = 0 ; patch ; patch = patch->next) { + files++; + adds += patch->lines_added; + dels += patch->lines_deleted; + show_stats(state, patch); + } - return 0; - } + print_stat_summary(stdout, files, adds, dels); +} + +static void numstat_patch_list(struct apply_state *state, + struct patch *patch) +{ + for ( ; patch; patch = patch->next) { + const char *name; + name = patch->new_name ? patch->new_name : patch->old_name; + if (patch->is_binary) + printf("-\t-\t"); + else + printf("%d\t%d\t", patch->lines_added, patch->lines_deleted); + write_name_quoted(name, stdout, state->line_termination); + } +} - static void stat_patch_list(struct apply_state *state, struct patch *patch) - { - int files, adds, dels; +static void show_file_mode_name(const char *newdelete, unsigned int mode, const char *name) +{ + if (mode) + printf(" %s mode %06o %s\n", newdelete, mode, name); + else + printf(" %s %s\n", newdelete, name); +} - for (files = adds = dels = 0 ; patch ; patch = patch->next) { - files++; - adds += patch->lines_added; - dels += patch->lines_deleted; - show_stats(state, patch); - } +static void show_mode_change(struct patch *p, int show_name) +{ + if (p->old_mode && p->new_mode && p->old_mode != p->new_mode) { + if (show_name) + printf(" mode change %06o => %06o %s\n", + p->old_mode, p->new_mode, p->new_name); + else + printf(" mode change %06o => %06o\n", + p->old_mode, p->new_mode); + } +} - print_stat_summary(stdout, files, adds, dels); - } +static void show_rename_copy(struct patch *p) +{ + const char *renamecopy = p->is_rename ? "rename" : "copy"; + const char *old, *new; - static void numstat_patch_list(struct apply_state *state, - struct patch *patch) - { - for ( ; patch; patch = patch->next) { - const char *name; - name = patch->new_name ? patch->new_name : patch->old_name; - if (patch->is_binary) - printf("-\t-\t"); - else - printf("%d\t%d\t", patch->lines_added, patch->lines_deleted); - write_name_quoted(name, stdout, state->line_termination); - } - } - - static void show_file_mode_name(const char *newdelete, unsigned int mode, const char *name) - { - if (mode) - printf(" %s mode %06o %s\n", newdelete, mode, name); - else - printf(" %s %s\n", newdelete, name); - } - - static void show_mode_change(struct patch *p, int show_name) - { - if (p->old_mode && p->new_mode && p->old_mode != p->new_mode) { - if (show_name) - printf(" mode change %06o => %06o %s\n", - p->old_mode, p->new_mode, p->new_name); - else - printf(" mode change %06o => %06o\n", - p->old_mode, p->new_mode); - } - } - - static void show_rename_copy(struct patch *p) - { - const char *renamecopy = p->is_rename ? "rename" : "copy"; - const char *old, *new; - - /* Find common prefix */ - old = p->old_name; - new = p->new_name; - while (1) { - const char *slash_old, *slash_new; - slash_old = strchr(old, '/'); - slash_new = strchr(new, '/'); - if (!slash_old || - !slash_new || - slash_old - old != slash_new - new || - memcmp(old, new, slash_new - new)) - break; - old = slash_old + 1; - new = slash_new + 1; - } - /* p->old_name thru old is the common prefix, and old and new - * through the end of names are renames - */ - if (old != p->old_name) - printf(" %s %.*s{%s => %s} (%d%%)\n", renamecopy, - (int)(old - p->old_name), p->old_name, - old, new, p->score); - else - printf(" %s %s => %s (%d%%)\n", renamecopy, - p->old_name, p->new_name, p->score); - show_mode_change(p, 0); - } - - static void summary_patch_list(struct patch *patch) - { - struct patch *p; - - for (p = patch; p; p = p->next) { - if (p->is_new) - show_file_mode_name("create", p->new_mode, p->new_name); - else if (p->is_delete) - show_file_mode_name("delete", p->old_mode, p->old_name); - else { - if (p->is_rename || p->is_copy) - show_rename_copy(p); - else { - if (p->score) { - printf(" rewrite %s (%d%%)\n", - p->new_name, p->score); - show_mode_change(p, 0); - } - else - show_mode_change(p, 1); - } - } - } - } - - static void patch_stats(struct apply_state *state, struct patch *patch) - { - int lines = patch->lines_added + patch->lines_deleted; - - if (lines > state->max_change) - state->max_change = lines; - if (patch->old_name) { - int len = quote_c_style(patch->old_name, NULL, NULL, 0); - if (!len) - len = strlen(patch->old_name); - if (len > state->max_len) - state->max_len = len; - } - if (patch->new_name) { - int len = quote_c_style(patch->new_name, NULL, NULL, 0); - if (!len) - len = strlen(patch->new_name); - if (len > state->max_len) - state->max_len = len; - } - } - - static int remove_file(struct apply_state *state, struct patch *patch, int rmdir_empty) - { - if (state->update_index) { - if (remove_file_from_cache(patch->old_name) < 0) - return error(_("unable to remove %s from index"), patch->old_name); - } - if (!state->cached) { - if (!remove_or_warn(patch->old_mode, patch->old_name) && rmdir_empty) { - remove_path(patch->old_name); - } - } - return 0; - } - - static int add_index_file(struct apply_state *state, - const char *path, - unsigned mode, - void *buf, - unsigned long size) - { - struct stat st; - struct cache_entry *ce; - int namelen = strlen(path); - unsigned ce_size = cache_entry_size(namelen); - - if (!state->update_index) - return 0; - - ce = xcalloc(1, ce_size); - memcpy(ce->name, path, namelen); - ce->ce_mode = create_ce_mode(mode); - ce->ce_flags = create_ce_flags(0); - ce->ce_namelen = namelen; - if (S_ISGITLINK(mode)) { - const char *s; - - if (!skip_prefix(buf, "Subproject commit ", &s) || - get_oid_hex(s, &ce->oid)) { + /* Find common prefix */ + old = p->old_name; + new = p->new_name; + while (1) { + const char *slash_old, *slash_new; + slash_old = strchr(old, '/'); + slash_new = strchr(new, '/'); + if (!slash_old || + !slash_new || + slash_old - old != slash_new - new || + memcmp(old, new, slash_new - new)) + break; + old = slash_old + 1; + new = slash_new + 1; + } + /* p->old_name thru old is the common prefix, and old and new + * through the end of names are renames + */ + if (old != p->old_name) + printf(" %s %.*s{%s => %s} (%d%%)\n", renamecopy, + (int)(old - p->old_name), p->old_name, + old, new, p->score); + else + printf(" %s %s => %s (%d%%)\n", renamecopy, + p->old_name, p->new_name, p->score); + show_mode_change(p, 0); +} + +static void summary_patch_list(struct patch *patch) +{ + struct patch *p; + + for (p = patch; p; p = p->next) { + if (p->is_new) + show_file_mode_name("create", p->new_mode, p->new_name); + else if (p->is_delete) + show_file_mode_name("delete", p->old_mode, p->old_name); + else { + if (p->is_rename || p->is_copy) + show_rename_copy(p); + else { + if (p->score) { + printf(" rewrite %s (%d%%)\n", + p->new_name, p->score); + show_mode_change(p, 0); + } + else + show_mode_change(p, 1); + } + } + } +} + +static void patch_stats(struct apply_state *state, struct patch *patch) +{ + int lines = patch->lines_added + patch->lines_deleted; + + if (lines > state->max_change) + state->max_change = lines; + if (patch->old_name) { + int len = quote_c_style(patch->old_name, NULL, NULL, 0); + if (!len) + len = strlen(patch->old_name); + if (len > state->max_len) + state->max_len = len; + } + if (patch->new_name) { + int len = quote_c_style(patch->new_name, NULL, NULL, 0); + if (!len) + len = strlen(patch->new_name); + if (len > state->max_len) + state->max_len = len; + } +} + +static int remove_file(struct apply_state *state, struct patch *patch, int rmdir_empty) +{ + if (state->update_index) { + if (remove_file_from_cache(patch->old_name) < 0) + return error(_("unable to remove %s from index"), patch->old_name); + } + if (!state->cached) { + if (!remove_or_warn(patch->old_mode, patch->old_name) && rmdir_empty) { + remove_path(patch->old_name); + } + } + return 0; +} + +static int add_index_file(struct apply_state *state, + const char *path, + unsigned mode, + void *buf, + unsigned long size) +{ + struct stat st; + struct cache_entry *ce; + int namelen = strlen(path); + unsigned ce_size = cache_entry_size(namelen); + + if (!state->update_index) + return 0; + + ce = xcalloc(1, ce_size); + memcpy(ce->name, path, namelen); + ce->ce_mode = create_ce_mode(mode); + ce->ce_flags = create_ce_flags(0); + ce->ce_namelen = namelen; + if (S_ISGITLINK(mode)) { + const char *s; + + if (!skip_prefix(buf, "Subproject commit ", &s) || + get_oid_hex(s, &ce->oid)) { free(ce); - return error(_("corrupt patch for submodule %s"), path); + return error(_("corrupt patch for submodule %s"), path); } } else { if (!state->cached) { @@ -4805,6 +4816,7 @@ int apply_all_patches(struct apply_state *state, for (i = 0; i < argc; i++) { const char *arg = argv[i]; + char *to_free = NULL; int fd; if (!strcmp(arg, "-")) { @@ -4814,21 +4826,21 @@ int apply_all_patches(struct apply_state *state, errs |= res; read_stdin = 0; continue; - } else if (0 < state->prefix_length) - arg = prefix_filename(state->prefix, - state->prefix_length, - arg); + } else + arg = to_free = prefix_filename(state->prefix, arg); fd = open(arg, O_RDONLY); if (fd < 0) { error(_("can't open patch '%s': %s"), arg, strerror(errno)); res = -128; + free(to_free); goto end; } read_stdin = 0; set_default_whitespace_mode(state); res = apply_patch(state, fd, arg, options); close(fd); + free(to_free); if (res < 0) goto end; errs |= res; |