X-Git-Url: https://git.octo.it/?a=blobdiff_plain;ds=sidebyside;f=diff.c;h=cbb86320a6b98ea57712a78c558c7dc84613087b;hb=d402d5566fdf226697a386dfb9858e5d954e9b91;hp=3dc0ca0a0334b2ed5492d67d759c4bffad5cd404;hpb=dbc37438687e110697574d175e4eca5f9cbeae81;p=git.git diff --git a/diff.c b/diff.c index 3dc0ca0a..cbb86320 100644 --- a/diff.c +++ b/diff.c @@ -10,9 +10,7 @@ #include "diffcore.h" static const char *diff_opts = "-pu"; -static unsigned char null_sha1[20] = { 0, }; -static int reverse_diff; static int use_size_cache; static const char *external_diff(void) @@ -415,7 +413,7 @@ void diff_free_filespec_data(struct diff_filespec *s) static void prep_temp_blob(struct diff_tempfile *temp, void *blob, unsigned long size, - unsigned char *sha1, + const unsigned char *sha1, int mode) { int fd; @@ -598,15 +596,31 @@ static void run_external_diff(const char *pgm, remove_tempfile(); } +static void diff_fill_sha1_info(struct diff_filespec *one) +{ + if (DIFF_FILE_VALID(one)) { + if (!one->sha1_valid) { + struct stat st; + if (stat(one->path, &st) < 0) + die("stat %s", one->path); + if (index_path(one->sha1, one->path, &st, 0)) + die("cannot hash %s\n", one->path); + } + } + else + memset(one->sha1, 0, 20); +} + static void run_diff(struct diff_filepair *p) { const char *pgm = external_diff(); - char msg_[PATH_MAX*2+200], *xfrm_msg; + char msg[PATH_MAX*2+300], *xfrm_msg; struct diff_filespec *one; struct diff_filespec *two; const char *name; const char *other; int complete_rewrite = 0; + int len; if (DIFF_PAIR_UNMERGED(p)) { /* unmerged */ @@ -618,39 +632,60 @@ static void run_diff(struct diff_filepair *p) name = p->one->path; other = (strcmp(name, p->two->path) ? p->two->path : NULL); one = p->one; two = p->two; + + diff_fill_sha1_info(one); + diff_fill_sha1_info(two); + + len = 0; switch (p->status) { case DIFF_STATUS_COPIED: - sprintf(msg_, - "similarity index %d%%\n" - "copy from %s\n" - "copy to %s", - (int)(0.5 + p->score * 100.0/MAX_SCORE), - name, other); - xfrm_msg = msg_; + len += snprintf(msg + len, sizeof(msg) - len, + "similarity index %d%%\n" + "copy from %s\n" + "copy to %s\n", + (int)(0.5 + p->score * 100.0/MAX_SCORE), + name, other); break; case DIFF_STATUS_RENAMED: - sprintf(msg_, - "similarity index %d%%\n" - "rename from %s\n" - "rename to %s", - (int)(0.5 + p->score * 100.0/MAX_SCORE), - name, other); - xfrm_msg = msg_; + len += snprintf(msg + len, sizeof(msg) - len, + "similarity index %d%%\n" + "rename from %s\n" + "rename to %s\n", + (int)(0.5 + p->score * 100.0/MAX_SCORE), + name, other); break; case DIFF_STATUS_MODIFIED: if (p->score) { - sprintf(msg_, - "dissimilarity index %d%%", - (int)(0.5 + p->score * 100.0/MAX_SCORE)); - xfrm_msg = msg_; + len += snprintf(msg + len, sizeof(msg) - len, + "dissimilarity index %d%%\n", + (int)(0.5 + p->score * + 100.0/MAX_SCORE)); complete_rewrite = 1; break; } /* fallthru */ default: - xfrm_msg = NULL; + /* nothing */ + ; + } + + if (memcmp(one->sha1, two->sha1, 20)) { + char one_sha1[41]; + memcpy(one_sha1, sha1_to_hex(one->sha1), 41); + + len += snprintf(msg + len, sizeof(msg) - len, + "index %.7s..%.7s", one_sha1, + sha1_to_hex(two->sha1)); + if (one->mode == two->mode) + len += snprintf(msg + len, sizeof(msg) - len, + " %06o", one->mode); + len += snprintf(msg + len, sizeof(msg) - len, "\n"); } + if (len) + msg[--len] = 0; + xfrm_msg = len ? msg : NULL; + if (!pgm && DIFF_FILE_VALID(one) && DIFF_FILE_VALID(two) && (S_IFMT & one->mode) != (S_IFMT & two->mode)) { @@ -669,11 +704,21 @@ static void run_diff(struct diff_filepair *p) complete_rewrite); } -void diff_setup(int flags) +void diff_setup(struct diff_options *options) +{ + memset(options, 0, sizeof(*options)); + options->output_format = DIFF_FORMAT_RAW; + options->line_termination = '\n'; + options->break_opt = -1; + options->rename_limit = -1; +} + +int diff_setup_done(struct diff_options *options) { - if (flags & DIFF_SETUP_REVERSE) - reverse_diff = 1; - if (flags & DIFF_SETUP_USE_CACHE) { + if ((options->find_copies_harder || 0 <= options->rename_limit) && + options->detect_rename != DIFF_DETECT_COPY) + return -1; + if (options->setup & DIFF_SETUP_USE_CACHE) { if (!active_cache) /* read-cache does not die even when it fails * so it is safe for us to do this here. Also @@ -683,9 +728,59 @@ void diff_setup(int flags) */ read_cache(); } - if (flags & DIFF_SETUP_USE_SIZE_CACHE) + if (options->setup & DIFF_SETUP_USE_SIZE_CACHE) use_size_cache = 1; - + + return 0; +} + +int diff_opt_parse(struct diff_options *options, const char **av, int ac) +{ + const char *arg = av[0]; + if (!strcmp(arg, "-p") || !strcmp(arg, "-u")) + options->output_format = DIFF_FORMAT_PATCH; + else if (!strcmp(arg, "-z")) + options->line_termination = 0; + else if (!strncmp(arg, "-l", 2)) + options->rename_limit = strtoul(arg+2, NULL, 10); + else if (!strcmp(arg, "--name-only")) + options->output_format = DIFF_FORMAT_NAME; + else if (!strcmp(arg, "--name-status")) + options->output_format = DIFF_FORMAT_NAME_STATUS; + else if (!strcmp(arg, "-R")) + options->reverse_diff = 1; + else if (!strncmp(arg, "-S", 2)) + options->pickaxe = arg + 2; + else if (!strcmp(arg, "-s")) + options->output_format = DIFF_FORMAT_NO_OUTPUT; + else if (!strncmp(arg, "-O", 2)) + options->orderfile = arg + 2; + else if (!strncmp(arg, "--diff-filter=", 14)) + options->filter = arg + 14; + else if (!strcmp(arg, "--pickaxe-all")) + options->pickaxe_opts = DIFF_PICKAXE_ALL; + else if (!strncmp(arg, "-B", 2)) { + if ((options->break_opt = + diff_scoreopt_parse(arg)) == -1) + return -1; + } + else if (!strncmp(arg, "-M", 2)) { + if ((options->rename_score = + diff_scoreopt_parse(arg)) == -1) + return -1; + options->detect_rename = DIFF_DETECT_RENAME; + } + else if (!strncmp(arg, "-C", 2)) { + if ((options->rename_score = + diff_scoreopt_parse(arg)) == -1) + return -1; + options->detect_rename = DIFF_DETECT_COPY; + } + else if (!strcmp(arg, "--find-copies-harder")) + options->find_copies_harder = 1; + else + return 0; + return 1; } static int parse_num(const char **cp_p) @@ -778,7 +873,8 @@ void diff_free_filepair(struct diff_filepair *p) static void diff_flush_raw(struct diff_filepair *p, int line_termination, - int inter_name_termination) + int inter_name_termination, + int output_format) { int two_paths; char status[10]; @@ -814,13 +910,12 @@ static void diff_flush_raw(struct diff_filepair *p, two_paths = 0; break; } - printf(":%06o %06o %s ", - p->one->mode, p->two->mode, sha1_to_hex(p->one->sha1)); - printf("%s %s%c%s", - sha1_to_hex(p->two->sha1), - status, - inter_name_termination, - p->one->path); + if (output_format != DIFF_FORMAT_NAME_STATUS) { + printf(":%06o %06o %s ", + p->one->mode, p->two->mode, sha1_to_hex(p->one->sha1)); + printf("%s ", sha1_to_hex(p->two->sha1)); + } + printf("%s%c%s",status, inter_name_termination, p->one->path); if (two_paths) printf("%c%s", inter_name_termination, p->two->path); putchar(line_termination); @@ -987,29 +1082,33 @@ static void diff_resolve_rename_copy(void) diff_debug_queue("resolve-rename-copy done", q); } -void diff_flush(int diff_output_style, int line_termination) +void diff_flush(struct diff_options *options) { struct diff_queue_struct *q = &diff_queued_diff; int i; int inter_name_termination = '\t'; + int diff_output_format = options->output_format; + int line_termination = options->line_termination; if (!line_termination) inter_name_termination = 0; for (i = 0; i < q->nr; i++) { struct diff_filepair *p = q->queue[i]; - if ((diff_output_style == DIFF_FORMAT_NO_OUTPUT) || + if ((diff_output_format == DIFF_FORMAT_NO_OUTPUT) || (p->status == DIFF_STATUS_UNKNOWN)) continue; if (p->status == 0) die("internal error in diff-resolve-rename-copy"); - switch (diff_output_style) { + switch (diff_output_format) { case DIFF_FORMAT_PATCH: diff_flush_patch(p); break; case DIFF_FORMAT_RAW: + case DIFF_FORMAT_NAME_STATUS: diff_flush_raw(p, line_termination, - inter_name_termination); + inter_name_termination, + diff_output_format); break; case DIFF_FORMAT_NAME: diff_flush_name(p, line_termination); @@ -1078,45 +1177,36 @@ static void diffcore_apply_filter(const char *filter) *q = outq; } -void diffcore_std(const char **paths, - int detect_rename, int rename_score, - const char *pickaxe, int pickaxe_opts, - int break_opt, - const char *orderfile, - const char *filter) +void diffcore_std(struct diff_options *options) { - if (paths && paths[0]) - diffcore_pathspec(paths); - if (break_opt != -1) - diffcore_break(break_opt); - if (detect_rename) - diffcore_rename(detect_rename, rename_score); - if (break_opt != -1) + if (options->paths && options->paths[0]) + diffcore_pathspec(options->paths); + if (options->break_opt != -1) + diffcore_break(options->break_opt); + if (options->detect_rename) + diffcore_rename(options); + if (options->break_opt != -1) diffcore_merge_broken(); - if (pickaxe) - diffcore_pickaxe(pickaxe, pickaxe_opts); - if (orderfile) - diffcore_order(orderfile); + if (options->pickaxe) + diffcore_pickaxe(options->pickaxe, options->pickaxe_opts); + if (options->orderfile) + diffcore_order(options->orderfile); diff_resolve_rename_copy(); - diffcore_apply_filter(filter); + diffcore_apply_filter(options->filter); } -void diffcore_std_no_resolve(const char **paths, - const char *pickaxe, int pickaxe_opts, - const char *orderfile, - const char *filter) +void diffcore_std_no_resolve(struct diff_options *options) { - if (paths && paths[0]) - diffcore_pathspec(paths); - if (pickaxe) - diffcore_pickaxe(pickaxe, pickaxe_opts); - if (orderfile) - diffcore_order(orderfile); - diffcore_apply_filter(filter); + if (options->pickaxe) + diffcore_pickaxe(options->pickaxe, options->pickaxe_opts); + if (options->orderfile) + diffcore_order(options->orderfile); + diffcore_apply_filter(options->filter); } -void diff_addremove(int addremove, unsigned mode, +void diff_addremove(struct diff_options *options, + int addremove, unsigned mode, const unsigned char *sha1, const char *base, const char *path) { @@ -1135,7 +1225,7 @@ void diff_addremove(int addremove, unsigned mode, * Before the final output happens, they are pruned after * merged into rename/copy pairs as appropriate. */ - if (reverse_diff) + if (options->reverse_diff) addremove = (addremove == '+' ? '-' : addremove == '-' ? '+' : addremove); @@ -1152,7 +1242,8 @@ void diff_addremove(int addremove, unsigned mode, diff_queue(&diff_queued_diff, one, two); } -void diff_change(unsigned old_mode, unsigned new_mode, +void diff_change(struct diff_options *options, + unsigned old_mode, unsigned new_mode, const unsigned char *old_sha1, const unsigned char *new_sha1, const char *base, const char *path) @@ -1160,7 +1251,7 @@ void diff_change(unsigned old_mode, unsigned new_mode, char concatpath[PATH_MAX]; struct diff_filespec *one, *two; - if (reverse_diff) { + if (options->reverse_diff) { unsigned tmp; const unsigned char *tmp_c; tmp = old_mode; old_mode = new_mode; new_mode = tmp; @@ -1176,7 +1267,8 @@ void diff_change(unsigned old_mode, unsigned new_mode, diff_queue(&diff_queued_diff, one, two); } -void diff_unmerge(const char *path) +void diff_unmerge(struct diff_options *options, + const char *path) { struct diff_filespec *one, *two; one = alloc_filespec(path);