From: Junio C Hamano Date: Wed, 22 Jun 2005 09:29:46 +0000 (-0700) Subject: [PATCH] git-apply: implement --summary option. X-Git-Tag: v0.99~208 X-Git-Url: https://git.tokkee.org/?a=commitdiff_plain;h=96c912a48401fbc8fce94c791f6afc49dcb9f7ac;p=git.git [PATCH] git-apply: implement --summary option. Typical expected usage is "git-apply --stat --summary" to show diffstat plus dense description of information available in git extended headers, such as creations, renames, and mode changes. Signed-off-by: Junio C Hamano Signed-off-by: Linus Torvalds --- diff --git a/apply.c b/apply.c index 53a9bb626..31f134c9b 100644 --- a/apply.c +++ b/apply.c @@ -28,10 +28,11 @@ static int merge_patch = 1; static int check_index = 0; static int write_index = 0; static int diffstat = 0; +static int summary = 0; static int check = 0; static int apply = 1; static int show_files = 0; -static const char apply_usage[] = "git-apply [--stat] [--check] [--show-files] "; +static const char apply_usage[] = "git-apply [--stat] [--summary] [--check] [--show-files] "; /* * For "diff-stat" like behaviour, we keep track of the biggest change @@ -60,6 +61,7 @@ struct patch { unsigned int old_mode, new_mode; int is_rename, is_copy, is_new, is_delete; int lines_added, lines_deleted; + int score; struct fragment *fragments; char *result; unsigned long resultsize; @@ -329,11 +331,15 @@ static int gitdiff_renamedst(const char *line, struct patch *patch) static int gitdiff_similarity(const char *line, struct patch *patch) { + if ((patch->score = strtoul(line, NULL, 10)) == ULONG_MAX) + patch->score = 0; return 0; } static int gitdiff_dissimilarity(const char *line, struct patch *patch) { + if ((patch->score = strtoul(line, NULL, 10)) == ULONG_MAX) + patch->score = 0; return 0; } @@ -1093,6 +1099,84 @@ static void stat_patch_list(struct patch *patch) printf(" %d files changed, %d insertions(+), %d deletions(-)\n", 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); +} + +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, + 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 patch *patch) { int lines = patch->lines_added + patch->lines_deleted; @@ -1306,6 +1390,9 @@ static int apply_patch(int fd) if (diffstat) stat_patch_list(list); + if (summary) + summary_patch_list(list); + free(buffer); return 0; } @@ -1333,6 +1420,11 @@ int main(int argc, char **argv) diffstat = 1; continue; } + if (!strcmp(arg, "--summary")) { + apply = 0; + summary = 1; + continue; + } if (!strcmp(arg, "--check")) { apply = 0; check = 1;