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[PATCH] diff overhaul
This cleans up the way calls are made into the diff core from diff-tree family and diff-helper. Earlier, these programs had "if (generating_patch)" sprinkled all over the place, but those ugliness are gone and handled uniformly from the diff core, even when not generating patch format. This also allowed diff-cache and diff-files to acquire -R (reverse) option to generate diff in reverse. Users of diff-tree can swap two trees easily so I did not add -R there. [ Linus' note: I'll add -R to "diff-tree" too, since a "commit diff" doesn't have another tree to switch around: the other tree is always the parent(s) of the commit ] Also -M<digits-as-mantissa> suggestion made by Linus has been implemented. Documentation updates are also included. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Junio C Hamano
Linus Torvalds
parent
dc26bd890d
commit
57fe64a40d
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@ -9,7 +9,7 @@ git-diff-cache - Compares content and mode of blobs between the cache and reposi
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SYNOPSIS
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--------
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'git-diff-cache' [-p] [-r] [-z] [-m] [-M] [--cached] <tree-ish>
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'git-diff-cache' [-p] [-r] [-z] [-m] [-M] [-R] [--cached] <tree-ish>
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DESCRIPTION
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-----------
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@ -36,6 +36,9 @@ OPTIONS
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-M::
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Detect renames; implies -p.
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-R::
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Output diff in reverse.
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--cached::
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do not consider the on-disk file at all
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@ -9,7 +9,7 @@ git-diff-files - Compares files in the working tree and the cache
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SYNOPSIS
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--------
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'git-diff-files' [-p] [-q] [-r] [-z] [-M] [<pattern>...]
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'git-diff-files' [-p] [-q] [-r] [-z] [-M] [-R] [<pattern>...]
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DESCRIPTION
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-----------
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@ -26,6 +26,9 @@ OPTIONS
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-q::
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Remain silent even on nonexisting files
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-R::
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Output diff in reverse.
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-M::
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Detect renames; implies -p.
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42
diff-cache.c
42
diff-cache.c
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@ -6,15 +6,13 @@ static int generate_patch = 0;
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static int match_nonexisting = 0;
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static int line_termination = '\n';
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static int detect_rename = 0;
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static int reverse_diff = 0;
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static int diff_score_opt = 0;
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/* A file entry went away or appeared */
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static void show_file(const char *prefix, struct cache_entry *ce, unsigned char *sha1, unsigned int mode)
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{
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if (generate_patch)
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diff_addremove(prefix[0], ntohl(mode), sha1, ce->name, NULL);
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else
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printf("%s%06o\tblob\t%s\t%s%c", prefix, ntohl(mode),
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sha1_to_hex(sha1), ce->name, line_termination);
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diff_addremove(prefix[0], ntohl(mode), sha1, ce->name, NULL);
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}
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static int get_stat_data(struct cache_entry *ce, unsigned char **sha1p, unsigned int *modep)
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@ -64,7 +62,6 @@ static int show_modified(struct cache_entry *old,
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{
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unsigned int mode, oldmode;
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unsigned char *sha1;
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char old_sha1_hex[60];
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if (get_stat_data(new, &sha1, &mode) < 0) {
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if (report_missing)
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@ -79,15 +76,8 @@ static int show_modified(struct cache_entry *old,
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mode = ntohl(mode);
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oldmode = ntohl(oldmode);
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if (generate_patch)
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diff_change(oldmode, mode,
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old->sha1, sha1, old->name, NULL);
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else {
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strcpy(old_sha1_hex, sha1_to_hex(old->sha1));
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printf("*%06o->%06o\tblob\t%s->%s\t%s%c", oldmode, mode,
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old_sha1_hex, sha1_to_hex(sha1),
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old->name, line_termination);
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}
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diff_change(oldmode, mode,
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old->sha1, sha1, old->name, NULL);
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return 0;
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}
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@ -127,10 +117,7 @@ static int diff_cache(struct cache_entry **ac, int entries)
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break;
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/* fallthru */
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case 3:
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if (generate_patch)
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diff_unmerge(ce->name);
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else
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printf("U %s%c", ce->name, line_termination);
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diff_unmerge(ce->name);
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break;
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default:
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@ -166,7 +153,7 @@ static void mark_merge_entries(void)
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}
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static char *diff_cache_usage =
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"git-diff-cache [-p] [-r] [-z] [-m] [-M] [--cached] <tree-ish>";
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"git-diff-cache [-p] [-r] [-z] [-m] [-M] [-R] [--cached] <tree-ish>";
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int main(int argc, char **argv)
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{
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@ -188,14 +175,19 @@ int main(int argc, char **argv)
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generate_patch = 1;
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continue;
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}
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if (!strcmp(arg, "-M")) {
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if (!strncmp(arg, "-M", 2)) {
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generate_patch = detect_rename = 1;
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diff_score_opt = diff_scoreopt_parse(arg);
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continue;
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}
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if (!strcmp(arg, "-z")) {
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line_termination = '\0';
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continue;
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}
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if (!strcmp(arg, "-R")) {
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reverse_diff = 1;
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continue;
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}
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if (!strcmp(arg, "-m")) {
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match_nonexisting = 1;
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continue;
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@ -210,8 +202,9 @@ int main(int argc, char **argv)
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if (argc != 2 || get_sha1(argv[1], tree_sha1))
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usage(diff_cache_usage);
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if (generate_patch)
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diff_setup(detect_rename, 0, 0, 0, 0);
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diff_setup(detect_rename, diff_score_opt, reverse_diff,
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(generate_patch ? -1 : line_termination),
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0, 0);
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mark_merge_entries();
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@ -222,7 +215,6 @@ int main(int argc, char **argv)
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die("unable to read tree object %s", argv[1]);
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ret = diff_cache(active_cache, active_nr);
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if (generate_patch)
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diff_flush();
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diff_flush();
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return ret;
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}
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44
diff-files.c
44
diff-files.c
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@ -7,11 +7,13 @@
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#include "diff.h"
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static const char *diff_files_usage =
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"git-diff-files [-p] [-q] [-r] [-z] [-M] [paths...]";
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"git-diff-files [-p] [-q] [-r] [-z] [-M] [-R] [paths...]";
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static int generate_patch = 0;
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static int line_termination = '\n';
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static int detect_rename = 0;
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static int reverse_diff = 0;
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static int diff_score_opt = 0;
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static int silent = 0;
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static int matches_pathspec(struct cache_entry *ce, char **spec, int cnt)
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@ -31,36 +33,19 @@ static int matches_pathspec(struct cache_entry *ce, char **spec, int cnt)
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static void show_unmerge(const char *path)
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{
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if (generate_patch)
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diff_unmerge(path);
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else
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printf("U %s%c", path, line_termination);
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diff_unmerge(path);
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}
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static void show_file(int pfx, struct cache_entry *ce)
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{
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if (generate_patch)
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diff_addremove(pfx, ntohl(ce->ce_mode), ce->sha1,
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ce->name, NULL);
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else
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printf("%c%06o\t%s\t%s\t%s%c",
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pfx, ntohl(ce->ce_mode), "blob",
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sha1_to_hex(ce->sha1), ce->name, line_termination);
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diff_addremove(pfx, ntohl(ce->ce_mode), ce->sha1, ce->name, NULL);
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}
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static void show_modified(int oldmode, int mode,
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const unsigned char *old_sha1, const unsigned char *sha1,
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char *path)
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{
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char old_sha1_hex[41];
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strcpy(old_sha1_hex, sha1_to_hex(old_sha1));
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if (generate_patch)
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diff_change(oldmode, mode, old_sha1, sha1, path, NULL);
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else
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printf("*%06o->%06o\tblob\t%s->%s\t%s%c",
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oldmode, mode, old_sha1_hex, sha1_to_hex(sha1), path,
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line_termination);
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diff_change(oldmode, mode, old_sha1, sha1, path, NULL);
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}
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int main(int argc, char **argv)
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@ -80,7 +65,10 @@ int main(int argc, char **argv)
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; /* no-op */
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else if (!strcmp(argv[1], "-z"))
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line_termination = 0;
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else if (!strcmp(argv[1], "-M")) {
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else if (!strcmp(argv[1], "-R"))
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reverse_diff = 1;
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else if (!strncmp(argv[1], "-M", 2)) {
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diff_score_opt = diff_scoreopt_parse(argv[1]);
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detect_rename = generate_patch = 1;
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}
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else
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@ -96,8 +84,9 @@ int main(int argc, char **argv)
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exit(1);
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}
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if (generate_patch)
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diff_setup(detect_rename, 0, 0, 0, 0);
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diff_setup(detect_rename, diff_score_opt, reverse_diff,
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(generate_patch ? -1 : line_termination),
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0, 0);
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for (i = 0; i < entries; i++) {
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struct stat st;
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@ -117,12 +106,12 @@ int main(int argc, char **argv)
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i--; /* compensate for loop control increments */
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continue;
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}
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if (lstat(ce->name, &st) < 0) {
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if (errno != ENOENT) {
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perror(ce->name);
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continue;
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}
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}
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if (silent)
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continue;
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show_file('-', ce);
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@ -139,7 +128,6 @@ int main(int argc, char **argv)
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show_modified(oldmode, mode, ce->sha1, null_sha1,
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ce->name);
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}
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if (generate_patch)
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diff_flush();
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diff_flush();
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return 0;
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}
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@ -7,6 +7,7 @@
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#include "diff.h"
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static int detect_rename = 0;
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static int diff_score_opt = 0;
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static int parse_oneside_change(const char *cp, int *mode,
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unsigned char *sha1, char *path)
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@ -19,15 +20,15 @@ static int parse_oneside_change(const char *cp, int *mode,
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cp++;
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}
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*mode = m;
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if (strncmp(cp, "\tblob\t", 6))
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if (strncmp(cp, "\tblob\t", 6) && strncmp(cp, " blob ", 6))
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return -1;
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cp += 6;
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if (get_sha1_hex(cp, sha1))
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return -1;
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cp += 40;
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if (*cp++ != '\t')
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if ((*cp != '\t') && *cp != ' ')
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return -1;
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strcpy(path, cp);
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strcpy(path, ++cp);
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return 0;
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}
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@ -63,7 +64,7 @@ static int parse_diff_raw_output(const char *buf)
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new_mode = (new_mode << 3) | (ch - '0');
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cp++;
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}
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if (strncmp(cp, "\tblob\t", 6))
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if (strncmp(cp, "\tblob\t", 6) && strncmp(cp, " blob ", 6))
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return -1;
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cp += 6;
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if (get_sha1_hex(cp, old_sha1))
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@ -75,9 +76,9 @@ static int parse_diff_raw_output(const char *buf)
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if (get_sha1_hex(cp, new_sha1))
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return -1;
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cp += 40;
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if (*cp++ != '\t')
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if ((*cp != '\t') && *cp != ' ')
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return -1;
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strcpy(path, cp);
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strcpy(path, ++cp);
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diff_change(old_mode, new_mode, old_sha1, new_sha1, path, 0);
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break;
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default:
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@ -101,15 +102,17 @@ int main(int ac, const char **av) {
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reverse = 1;
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else if (av[1][1] == 'z')
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line_termination = 0;
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else if (av[1][1] == 'M')
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else if (av[1][1] == 'M') {
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detect_rename = 1;
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diff_score_opt = diff_scoreopt_parse(av[1]);
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}
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else
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usage(diff_helper_usage);
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ac--; av++;
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}
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/* the remaining parameters are paths patterns */
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diff_setup(detect_rename, 0, reverse, av+1, ac-1);
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diff_setup(detect_rename, diff_score_opt, reverse, -1, av+1, ac-1);
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while (1) {
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int status;
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46
diff-tree.c
46
diff-tree.c
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@ -11,6 +11,7 @@ static int read_stdin = 0;
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static int line_termination = '\n';
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static int generate_patch = 0;
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static int detect_rename = 0;
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static int diff_score_opt = 0;
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static const char *header = NULL;
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static const char *header_prefix = "";
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@ -84,21 +85,13 @@ static void show_file(const char *prefix, void *tree, unsigned long size, const
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die("corrupt tree sha %s", sha1_to_hex(sha1));
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show_tree(prefix, tree, size, newbase);
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free(tree);
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free(newbase);
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return;
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}
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if (generate_patch) {
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if (!S_ISDIR(mode))
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diff_addremove(prefix[0], mode, sha1, base, path);
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}
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else
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printf("%s%06o\t%s\t%s\t%s%s%c", prefix, mode,
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S_ISDIR(mode) ? "tree" : "blob",
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sha1_to_hex(sha1), base, path,
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line_termination);
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diff_addremove(prefix[0], mode, sha1, base, path);
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}
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static int compare_tree_entry(void *tree1, unsigned long size1, void *tree2, unsigned long size2, const char *base)
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@ -107,7 +100,6 @@ static int compare_tree_entry(void *tree1, unsigned long size1, void *tree2, uns
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const char *path1, *path2;
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const unsigned char *sha1, *sha2;
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int cmp, pathlen1, pathlen2;
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char old_sha1_hex[50];
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sha1 = extract(tree1, size1, &path1, &mode1);
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sha2 = extract(tree2, size2, &path2, &mode2);
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@ -151,17 +143,7 @@ static int compare_tree_entry(void *tree1, unsigned long size1, void *tree2, uns
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if (silent)
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return 0;
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if (generate_patch) {
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if (!S_ISDIR(mode1))
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diff_change(mode1, mode2, sha1, sha2, base, path1);
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}
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else {
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strcpy(old_sha1_hex, sha1_to_hex(sha1));
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printf("*%06o->%06o\t%s\t%s->%s\t%s%s%c", mode1, mode2,
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S_ISDIR(mode1) ? "tree" : "blob",
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old_sha1_hex, sha1_to_hex(sha2), base, path1,
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line_termination);
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}
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diff_change(mode1, mode2, sha1, sha2, base, path1);
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return 0;
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}
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@ -287,11 +269,12 @@ static int diff_tree_sha1_top(const unsigned char *old,
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const unsigned char *new, const char *base)
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{
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int ret;
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if (generate_patch)
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diff_setup(detect_rename, 0, 0, 0, 0);
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diff_setup(detect_rename, diff_score_opt, 0,
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(generate_patch ? -1 : line_termination),
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0, 0);
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ret = diff_tree_sha1(old, new, base);
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if (generate_patch)
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diff_flush();
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diff_flush();
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return ret;
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}
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@ -301,15 +284,15 @@ static int diff_root_tree(const unsigned char *new, const char *base)
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void *tree;
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unsigned long size;
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if (generate_patch)
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diff_setup(detect_rename, 0, 0, 0, 0);
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diff_setup(detect_rename, diff_score_opt, 0,
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(generate_patch ? -1 : line_termination),
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0, 0);
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tree = read_object_with_reference(new, "tree", &size, 0);
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if (!tree)
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die("unable to read root tree (%s)", sha1_to_hex(new));
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retval = diff_tree("", 0, tree, size, base);
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free(tree);
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if (generate_patch)
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diff_flush();
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diff_flush();
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return retval;
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}
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|
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@ -485,8 +468,9 @@ int main(int argc, char **argv)
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recursive = generate_patch = 1;
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continue;
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}
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if (!strcmp(arg, "-M")) {
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if (!strncmp(arg, "-M", 2)) {
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detect_rename = recursive = generate_patch = 1;
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diff_score_opt = diff_scoreopt_parse(arg);
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continue;
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}
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if (!strcmp(arg, "-z")) {
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|
|
|||
142
diff.c
142
diff.c
|
|
@ -11,6 +11,8 @@
|
|||
|
||||
static const char *diff_opts = "-pu";
|
||||
static unsigned char null_sha1[20] = { 0, };
|
||||
#define MAX_SCORE 10000
|
||||
#define DEFAULT_MINIMUM_SCORE 5000
|
||||
|
||||
static const char *external_diff(void)
|
||||
{
|
||||
|
|
@ -55,7 +57,7 @@ static char *sq_expand(const char *src)
|
|||
const char *cp;
|
||||
char *bp;
|
||||
|
||||
/* count bytes needed to store the quoted string. */
|
||||
/* count bytes needed to store the quoted string. */
|
||||
for (cnt = 1, cp = src; *cp; cnt++, cp++)
|
||||
if (*cp == '\'')
|
||||
cnt += 3;
|
||||
|
|
@ -93,7 +95,8 @@ struct diff_spec {
|
|||
|
||||
static void builtin_diff(const char *name_a,
|
||||
const char *name_b,
|
||||
struct diff_tempfile *temp)
|
||||
struct diff_tempfile *temp,
|
||||
int rename_score)
|
||||
{
|
||||
int i, next_at, cmd_size;
|
||||
const char *diff_cmd = "diff -L'%s%s' -L'%s%s'";
|
||||
|
|
@ -149,6 +152,10 @@ static void builtin_diff(const char *name_a,
|
|||
printf("new mode %s\n", temp[1].mode);
|
||||
}
|
||||
if (strcmp(name_a, name_b)) {
|
||||
if (0 < rename_score)
|
||||
printf("rename similarity index %d%%\n",
|
||||
(int)(0.5+
|
||||
rename_score*100.0/MAX_SCORE));
|
||||
printf("rename old %s\n", name_a);
|
||||
printf("rename new %s\n", name_b);
|
||||
}
|
||||
|
|
@ -184,7 +191,7 @@ static int work_tree_matches(const char *name, const unsigned char *sha1)
|
|||
* file. Practically, this code only helps when we are used
|
||||
* by diff-cache --cached, which does read the cache before
|
||||
* calling us.
|
||||
*/
|
||||
*/
|
||||
if (!active_cache)
|
||||
return 0;
|
||||
|
||||
|
|
@ -302,9 +309,10 @@ static void remove_tempfile_on_signal(int signo)
|
|||
|
||||
static int detect_rename;
|
||||
static int reverse_diff;
|
||||
static int diff_raw_output = -1;
|
||||
static const char **pathspec;
|
||||
static int speccnt;
|
||||
static int diff_rename_minimum_score;
|
||||
static int minimum_score;
|
||||
|
||||
static int matches_pathspec(const char *name)
|
||||
{
|
||||
|
|
@ -334,7 +342,8 @@ static int matches_pathspec(const char *name)
|
|||
static void run_external_diff(const char *name,
|
||||
const char *other,
|
||||
struct diff_spec *one,
|
||||
struct diff_spec *two)
|
||||
struct diff_spec *two,
|
||||
int rename_score)
|
||||
{
|
||||
struct diff_tempfile *temp = diff_temp;
|
||||
pid_t pid;
|
||||
|
|
@ -395,7 +404,7 @@ static void run_external_diff(const char *name,
|
|||
* otherwise we use the built-in one.
|
||||
*/
|
||||
if (one && two)
|
||||
builtin_diff(name, other ? : name, temp);
|
||||
builtin_diff(name, other ? : name, temp, rename_score);
|
||||
else
|
||||
printf("* Unmerged path %s\n", name);
|
||||
exit(0);
|
||||
|
|
@ -446,7 +455,7 @@ static void hold_diff(const char *name,
|
|||
die("internal error");
|
||||
|
||||
if (!detect_rename) {
|
||||
run_external_diff(name, NULL, one, two);
|
||||
run_external_diff(name, NULL, one, two, -1);
|
||||
return;
|
||||
}
|
||||
elem = xmalloc(sizeof(*elem) + strlen(name));
|
||||
|
|
@ -519,10 +528,10 @@ static void flush_remaining_diff(struct diff_spec_hold *elem,
|
|||
continue;
|
||||
if (on_created_list)
|
||||
run_external_diff(elem->path, NULL,
|
||||
&null_file_spec, &elem->it);
|
||||
&null_file_spec, &elem->it, -1);
|
||||
else
|
||||
run_external_diff(elem->path, NULL,
|
||||
&elem->it, &null_file_spec);
|
||||
&elem->it, &null_file_spec, -1);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -541,7 +550,6 @@ static int is_exact_match(struct diff_spec_hold *src,
|
|||
return 0;
|
||||
}
|
||||
|
||||
#define MINIMUM_SCORE 5000
|
||||
int estimate_similarity(struct diff_spec_hold *src, struct diff_spec_hold *dst)
|
||||
{
|
||||
/* src points at a deleted file and dst points at a created
|
||||
|
|
@ -549,20 +557,24 @@ int estimate_similarity(struct diff_spec_hold *src, struct diff_spec_hold *dst)
|
|||
* say src is renamed to dst.
|
||||
*
|
||||
* Compare them and return how similar they are, representing
|
||||
* the score as an integer between 0 and 10000. 10000 is
|
||||
* reserved for the case where they match exactly.
|
||||
* the score as an integer between 0 and 10000, except
|
||||
* where they match exactly it is considered better than anything
|
||||
* else.
|
||||
*/
|
||||
void *delta;
|
||||
unsigned long delta_size;
|
||||
int score;
|
||||
|
||||
delta_size = ((src->size < dst->size) ?
|
||||
(dst->size - src->size) : (src->size - dst->size));
|
||||
|
||||
/* We would not consider rename followed by more than
|
||||
* 20% edits; that is, delta_size must be smaller than
|
||||
* (src->size + dst->size)/2 * 0.2, which means...
|
||||
* minimum_score/MAX_SCORE edits; that is, delta_size must be smaller
|
||||
* than (src->size + dst->size)/2 * minimum_score/MAX_SCORE,
|
||||
* which means...
|
||||
*/
|
||||
if ((src->size + dst->size) < delta_size * 10)
|
||||
|
||||
if ((src->size+dst->size)*minimum_score < delta_size*MAX_SCORE*2)
|
||||
return 0;
|
||||
|
||||
delta = diff_delta(src->data, src->size,
|
||||
|
|
@ -573,14 +585,17 @@ int estimate_similarity(struct diff_spec_hold *src, struct diff_spec_hold *dst)
|
|||
/* This "delta" is really xdiff with adler32 and all the
|
||||
* overheads but it is a quick and dirty approximation.
|
||||
*
|
||||
* Now we will give some score to it. Let's say 20% edit gets
|
||||
* 5000 points and 0% edit gets 9000 points. That is, every
|
||||
* 1/20000 edit gets 1 point penalty. The amount of penalty is:
|
||||
* Now we will give some score to it. 100% edit gets
|
||||
* 0 points and 0% edit gets MAX_SCORE points. That is, every
|
||||
* 1/MAX_SCORE edit gets 1 point penalty. The amount of penalty is:
|
||||
*
|
||||
* (delta_size * 2 / (src->size + dst->size)) * 20000
|
||||
* (delta_size * 2 / (src->size + dst->size)) * MAX_SCORE
|
||||
*
|
||||
*/
|
||||
return 9000 - (40000 * delta_size / (src->size+dst->size));
|
||||
score = MAX_SCORE-(MAX_SCORE*2*delta_size/(src->size+dst->size));
|
||||
if (score < 0) return 0;
|
||||
if (MAX_SCORE < score) return MAX_SCORE;
|
||||
return score;
|
||||
}
|
||||
|
||||
struct diff_score {
|
||||
|
|
@ -596,14 +611,15 @@ static int score_compare(const void *a_, const void *b_)
|
|||
}
|
||||
|
||||
static void flush_rename_pair(struct diff_spec_hold *src,
|
||||
struct diff_spec_hold *dst)
|
||||
struct diff_spec_hold *dst,
|
||||
int rename_score)
|
||||
{
|
||||
src->flags |= MATCHED;
|
||||
dst->flags |= MATCHED;
|
||||
free_data(src);
|
||||
free_data(dst);
|
||||
run_external_diff(src->path, dst->path,
|
||||
&src->it, &dst->it);
|
||||
&src->it, &dst->it, rename_score);
|
||||
}
|
||||
|
||||
static void free_held_diff(struct diff_spec_hold *list)
|
||||
|
|
@ -637,7 +653,7 @@ void diff_flush(void)
|
|||
continue;
|
||||
if (! is_exact_match(src, dst))
|
||||
continue;
|
||||
flush_rename_pair(src, dst);
|
||||
flush_rename_pair(src, dst, MAX_SCORE);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
|
@ -670,7 +686,7 @@ void diff_flush(void)
|
|||
}
|
||||
c++;
|
||||
}
|
||||
qsort(mx, num_create*num_delete, sizeof(*mx), score_compare);
|
||||
qsort(mx, num_create*num_delete, sizeof(*mx), score_compare);
|
||||
|
||||
#if 0
|
||||
for (c = 0; c < num_create * num_delete; c++) {
|
||||
|
|
@ -689,9 +705,9 @@ void diff_flush(void)
|
|||
dst = mx[c].dst;
|
||||
if ((src->flags & MATCHED) || (dst->flags & MATCHED))
|
||||
continue;
|
||||
if (mx[c].score < diff_rename_minimum_score)
|
||||
if (mx[c].score < minimum_score)
|
||||
break;
|
||||
flush_rename_pair(src, dst);
|
||||
flush_rename_pair(src, dst, mx[c].score);
|
||||
}
|
||||
free(mx);
|
||||
|
||||
|
|
@ -703,7 +719,26 @@ void diff_flush(void)
|
|||
createdfile = deletedfile = NULL;
|
||||
}
|
||||
|
||||
int diff_scoreopt_parse(const char *opt)
|
||||
{
|
||||
int diglen, num, scale, i;
|
||||
if (opt[0] != '-' || opt[1] != 'M')
|
||||
return -1; /* that is not -M option */
|
||||
diglen = strspn(opt+2, "0123456789");
|
||||
if (diglen == 0 || strlen(opt+2) != diglen)
|
||||
return 0; /* use default */
|
||||
sscanf(opt+2, "%d", &num);
|
||||
for (i = 0, scale = 1; i < diglen; i++)
|
||||
scale *= 10;
|
||||
|
||||
/* user says num divided by scale and we say internally that
|
||||
* is MAX_SCORE * num / scale.
|
||||
*/
|
||||
return MAX_SCORE * num / scale;
|
||||
}
|
||||
|
||||
void diff_setup(int detect_rename_, int minimum_score_, int reverse_diff_,
|
||||
int diff_raw_output_,
|
||||
const char **pathspec_, int speccnt_)
|
||||
{
|
||||
free_held_diff(createdfile);
|
||||
|
|
@ -713,8 +748,14 @@ void diff_setup(int detect_rename_, int minimum_score_, int reverse_diff_,
|
|||
detect_rename = detect_rename_;
|
||||
reverse_diff = reverse_diff_;
|
||||
pathspec = pathspec_;
|
||||
diff_raw_output = diff_raw_output_;
|
||||
speccnt = speccnt_;
|
||||
diff_rename_minimum_score = minimum_score_ ? : MINIMUM_SCORE;
|
||||
minimum_score = minimum_score_ ? : DEFAULT_MINIMUM_SCORE;
|
||||
}
|
||||
|
||||
static const char *git_object_type(unsigned mode)
|
||||
{
|
||||
return S_ISDIR(mode) ? "tree" : "blob";
|
||||
}
|
||||
|
||||
void diff_addremove(int addremove, unsigned mode,
|
||||
|
|
@ -724,6 +765,21 @@ void diff_addremove(int addremove, unsigned mode,
|
|||
char concatpath[PATH_MAX];
|
||||
struct diff_spec spec[2], *one, *two;
|
||||
|
||||
if (0 <= diff_raw_output) {
|
||||
if (!path)
|
||||
path = "";
|
||||
if (reverse_diff)
|
||||
addremove = (addremove == '+' ? '-' : '+');
|
||||
printf("%c%06o %s %s %s%s%c",
|
||||
addremove,
|
||||
mode,
|
||||
git_object_type(mode), sha1_to_hex(sha1),
|
||||
base, path, diff_raw_output);
|
||||
return;
|
||||
}
|
||||
if (S_ISDIR(mode))
|
||||
return;
|
||||
|
||||
memcpy(spec[0].blob_sha1, sha1, 20);
|
||||
spec[0].mode = mode;
|
||||
spec[0].sha1_valid = !!memcmp(sha1, null_sha1, 20);
|
||||
|
|
@ -750,6 +806,29 @@ void diff_change(unsigned old_mode, unsigned new_mode,
|
|||
char concatpath[PATH_MAX];
|
||||
struct diff_spec spec[2];
|
||||
|
||||
if (0 <= diff_raw_output) {
|
||||
char old_hex[41];
|
||||
strcpy(old_hex, sha1_to_hex(old_sha1));
|
||||
|
||||
if (!path)
|
||||
path = "";
|
||||
if (reverse_diff)
|
||||
printf("*%06o->%06o %s %s->%s %s%s%c",
|
||||
new_mode, old_mode,
|
||||
git_object_type(new_mode),
|
||||
sha1_to_hex(new_sha1), old_hex,
|
||||
base, path, diff_raw_output);
|
||||
else
|
||||
printf("*%06o->%06o %s %s->%s %s%s%c",
|
||||
old_mode, new_mode,
|
||||
git_object_type(new_mode),
|
||||
old_hex, sha1_to_hex(new_sha1),
|
||||
base, path, diff_raw_output);
|
||||
return;
|
||||
}
|
||||
if (S_ISDIR(new_mode))
|
||||
return;
|
||||
|
||||
if (path) {
|
||||
strcpy(concatpath, base);
|
||||
strcat(concatpath, path);
|
||||
|
|
@ -766,10 +845,15 @@ void diff_change(unsigned old_mode, unsigned new_mode,
|
|||
/* We do not look at changed files as candidate for
|
||||
* rename detection ever.
|
||||
*/
|
||||
run_external_diff(path ? concatpath : base, NULL, &spec[0], &spec[1]);
|
||||
run_external_diff(path ? concatpath : base, NULL,
|
||||
&spec[0], &spec[1], -1);
|
||||
}
|
||||
|
||||
void diff_unmerge(const char *path)
|
||||
{
|
||||
run_external_diff(path, NULL, NULL, NULL);
|
||||
if (0 <= diff_raw_output) {
|
||||
printf("U %s%c", path, diff_raw_output);
|
||||
return;
|
||||
}
|
||||
run_external_diff(path, NULL, NULL, NULL, -1);
|
||||
}
|
||||
|
|
|
|||
4
diff.h
4
diff.h
|
|
@ -17,8 +17,10 @@ extern void diff_change(unsigned mode1, unsigned mode2,
|
|||
|
||||
extern void diff_unmerge(const char *path);
|
||||
|
||||
extern int diff_scoreopt_parse(const char *opt);
|
||||
|
||||
extern void diff_setup(int detect_rename, int minimum_score,
|
||||
int reverse,
|
||||
int reverse, int raw_output,
|
||||
const char **spec, int cnt);
|
||||
|
||||
extern void diff_flush(void);
|
||||
|
|
|
|||
|
|
@ -166,7 +166,7 @@ cat >expected <<\EOF
|
|||
EOF
|
||||
test_expect_success \
|
||||
'validate git-diff-files output for a know cache/work tree state.' \
|
||||
'git-diff-files >current && cmp -s current expected'
|
||||
'git-diff-files >current && diff >/dev/null -b current expected'
|
||||
|
||||
test_expect_success \
|
||||
'git-update-cache --refresh should succeed.' \
|
||||
|
|
|
|||
|
|
@ -29,3 +29,5 @@ rm -f path0 &&
|
|||
git-read-tree $t &&
|
||||
git-checkout-cache -u -f -a &&
|
||||
git-diff-files | diff - /dev/null'
|
||||
|
||||
test_done
|
||||
|
|
|
|||
|
|
@ -58,3 +58,9 @@ rename new path1
|
|||
Line 13
|
||||
Line 14
|
||||
EOF
|
||||
|
||||
test_expect_success \
|
||||
'validate the output.' \
|
||||
'diff -I "rename similarity.*" >/dev/null current expected'
|
||||
|
||||
test_done
|
||||
|
|
|
|||
Loading…
Reference in a new issue