diff options
| -rw-r--r-- | Documentation/git-diff-cache.txt | 6 | ||||
| -rw-r--r-- | Documentation/git-diff-files.txt | 6 | ||||
| -rw-r--r-- | Documentation/git-diff-helper.txt | 6 | ||||
| -rw-r--r-- | Documentation/git-diff-tree.txt | 5 | ||||
| -rw-r--r-- | Makefile | 3 | ||||
| -rw-r--r-- | diff-cache.c | 11 | ||||
| -rw-r--r-- | diff-files.c | 9 | ||||
| -rw-r--r-- | diff-helper.c | 10 | ||||
| -rw-r--r-- | diff-tree.c | 15 | ||||
| -rw-r--r-- | diff.c | 23 | ||||
| -rw-r--r-- | diff.h | 1 | ||||
| -rw-r--r-- | diffcore-pickaxe.c | 56 | ||||
| -rw-r--r-- | diffcore-rename.c | 29 | ||||
| -rw-r--r-- | diffcore.h | 11 |
14 files changed, 140 insertions, 51 deletions
diff --git a/Documentation/git-diff-cache.txt b/Documentation/git-diff-cache.txt index e3ed7131a4..2cfdffd87c 100644 --- a/Documentation/git-diff-cache.txt +++ b/Documentation/git-diff-cache.txt @@ -9,7 +9,7 @@ git-diff-cache - Compares content and mode of blobs between the cache and reposi SYNOPSIS -------- -'git-diff-cache' [-p] [-r] [-z] [-m] [-M] [-R] [-C] [--cached] <tree-ish> +'git-diff-cache' [-p] [-r] [-z] [-m] [-M] [-R] [-C] [-S<string>] [--cached] <tree-ish> DESCRIPTION ----------- @@ -39,6 +39,10 @@ OPTIONS -C:: Detect copies as well as renames; implies -p. +-S<string>:: + Look for differences that contains the change in <string>. + + -R:: Output diff in reverse. diff --git a/Documentation/git-diff-files.txt b/Documentation/git-diff-files.txt index 1eae3d0333..51a3d0fcd6 100644 --- a/Documentation/git-diff-files.txt +++ b/Documentation/git-diff-files.txt @@ -9,7 +9,7 @@ git-diff-files - Compares files in the working tree and the cache SYNOPSIS -------- -'git-diff-files' [-p] [-q] [-r] [-z] [-M] [-C] [-R] [<pattern>...] +'git-diff-files' [-p] [-q] [-r] [-z] [-M] [-C] [-R] [-S<string>] [<pattern>...] DESCRIPTION ----------- @@ -35,6 +35,10 @@ OPTIONS -C:: Detect copies as well as renames; implies -p. +-S<string>:: + Look for differences that contains the change in <string>. + + -r:: This flag does not mean anything. It is there only to match git-diff-tree. Unlike git-diff-tree, git-diff-files always looks diff --git a/Documentation/git-diff-helper.txt b/Documentation/git-diff-helper.txt index 302789e9d1..2036c6cc1b 100644 --- a/Documentation/git-diff-helper.txt +++ b/Documentation/git-diff-helper.txt @@ -9,7 +9,7 @@ git-diff-helper - Generates patch format output for git-diff-* SYNOPSIS -------- -'git-diff-helper' [-z] [-R] [-M] [-C] +'git-diff-helper' [-z] [-R] [-M] [-C] [-S<string>] DESCRIPTION ----------- @@ -37,6 +37,10 @@ OPTIONS -C:: Detect copies as well as renames. +-S<string>:: + Look for differences that contains the change in <string>. + + See Also -------- The section on generating patches in link:git-diff-cache.html[git-diff-cache] diff --git a/Documentation/git-diff-tree.txt b/Documentation/git-diff-tree.txt index f4e95a97c3..bdc8d5a53b 100644 --- a/Documentation/git-diff-tree.txt +++ b/Documentation/git-diff-tree.txt @@ -9,7 +9,7 @@ git-diff-tree - Compares the content and mode of blobs found via two tree object SYNOPSIS -------- -'git-diff-tree' [-p] [-r] [-z] [--stdin] [-M] [-R] [-C] [-m] [-s] [-v] <tree-ish> <tree-ish> [<pattern>]\* +'git-diff-tree' [-p] [-r] [-z] [--stdin] [-M] [-R] [-C] [-S<string>] [-m] [-s] [-v] <tree-ish> <tree-ish> [<pattern>]\* DESCRIPTION ----------- @@ -43,6 +43,9 @@ OPTIONS -R:: Output diff in reverse. +-S<string>:: + Look for differences that contains the change in <string>. + -r:: recurse @@ -45,7 +45,7 @@ LIB_H += strbuf.h LIB_OBJS += strbuf.o LIB_H += diff.h -LIB_OBJS += diff.o diffcore-rename.o +LIB_OBJS += diff.o diffcore-rename.o diffcore-pickaxe.o LIB_OBJS += gitenv.o @@ -125,6 +125,7 @@ strbuf.o: $(LIB_H) gitenv.o: $(LIB_H) diff.o: $(LIB_H) diffcore-rename.o : $(LIB_H) +diffcore-pickaxe.o : $(LIB_H) test: all make -C t/ all diff --git a/diff-cache.c b/diff-cache.c index 383302abbc..a5deb8c7a4 100644 --- a/diff-cache.c +++ b/diff-cache.c @@ -8,6 +8,7 @@ static int line_termination = '\n'; static int detect_rename = 0; static int reverse_diff = 0; static int diff_score_opt = 0; +static char *pickaxe = 0; /* A file entry went away or appeared */ static void show_file(const char *prefix, struct cache_entry *ce, unsigned char *sha1, unsigned int mode) @@ -153,7 +154,7 @@ static void mark_merge_entries(void) } static char *diff_cache_usage = -"git-diff-cache [-p] [-r] [-z] [-m] [-M] [-C] [-R] [--cached] <tree-ish>"; +"git-diff-cache [-p] [-r] [-z] [-m] [-M] [-C] [-R] [-S<string>] [--cached] <tree-ish>"; int main(int argc, char **argv) { @@ -194,6 +195,10 @@ int main(int argc, char **argv) reverse_diff = 1; continue; } + if (!strcmp(arg, "-S")) { + pickaxe = arg + 2; + continue; + } if (!strcmp(arg, "-m")) { match_nonexisting = 1; continue; @@ -208,8 +213,8 @@ int main(int argc, char **argv) if (argc != 2 || get_sha1(argv[1], tree_sha1)) usage(diff_cache_usage); - diff_setup(detect_rename, diff_score_opt, reverse_diff, - (generate_patch ? -1 : line_termination), + diff_setup(detect_rename, diff_score_opt, pickaxe, + reverse_diff, (generate_patch ? -1 : line_termination), NULL, 0); mark_merge_entries(); diff --git a/diff-files.c b/diff-files.c index d020254922..d3b80a0725 100644 --- a/diff-files.c +++ b/diff-files.c @@ -7,13 +7,14 @@ #include "diff.h" static const char *diff_files_usage = -"git-diff-files [-p] [-q] [-r] [-z] [-M] [-C] [-R] [paths...]"; +"git-diff-files [-p] [-q] [-r] [-z] [-M] [-C] [-R] [-S<string>] [paths...]"; static int generate_patch = 0; static int line_termination = '\n'; static int detect_rename = 0; static int reverse_diff = 0; static int diff_score_opt = 0; +static char *pickaxe = 0; static int silent = 0; static int matches_pathspec(struct cache_entry *ce, char **spec, int cnt) @@ -67,6 +68,8 @@ int main(int argc, char **argv) line_termination = 0; else if (!strcmp(argv[1], "-R")) reverse_diff = 1; + else if (!strcmp(argv[1], "-S")) + pickaxe = argv[1] + 2; else if (!strncmp(argv[1], "-M", 2)) { diff_score_opt = diff_scoreopt_parse(argv[1]); detect_rename = generate_patch = 1; @@ -89,8 +92,8 @@ int main(int argc, char **argv) exit(1); } - diff_setup(detect_rename, diff_score_opt, reverse_diff, - (generate_patch ? -1 : line_termination), + diff_setup(detect_rename, diff_score_opt, pickaxe, + reverse_diff, (generate_patch ? -1 : line_termination), NULL, 0); for (i = 0; i < entries; i++) { diff --git a/diff-helper.c b/diff-helper.c index 4e966db769..568d5ae356 100644 --- a/diff-helper.c +++ b/diff-helper.c @@ -9,6 +9,7 @@ static int detect_rename = 0; static int diff_score_opt = 0; static int generate_patch = 1; +static char *pickaxe = 0; static int parse_oneside_change(const char *cp, int *mode, unsigned char *sha1, char *path) @@ -93,7 +94,7 @@ static int parse_diff_raw_output(const char *buf) } static const char *diff_helper_usage = - "git-diff-helper [-z] [-R] [-M] [-C] paths..."; + "git-diff-helper [-z] [-R] [-M] [-C] [-S<string>] paths..."; int main(int ac, const char **av) { struct strbuf sb; @@ -117,14 +118,17 @@ int main(int ac, const char **av) { detect_rename = 2; diff_score_opt = diff_scoreopt_parse(av[1]); } + else if (av[1][1] == 'S') { + pickaxe = av[1] + 2; + } else usage(diff_helper_usage); ac--; av++; } /* the remaining parameters are paths patterns */ - diff_setup(detect_rename, diff_score_opt, reverse, - (generate_patch ? -1 : line_termination), + diff_setup(detect_rename, diff_score_opt, pickaxe, + reverse, (generate_patch ? -1 : line_termination), av+1, ac-1); while (1) { diff --git a/diff-tree.c b/diff-tree.c index aa4944686b..233a250668 100644 --- a/diff-tree.c +++ b/diff-tree.c @@ -13,6 +13,7 @@ static int generate_patch = 0; static int detect_rename = 0; static int reverse_diff = 0; static int diff_score_opt = 0; +static char *pickaxe = 0; static const char *header = NULL; static const char *header_prefix = ""; @@ -271,8 +272,8 @@ static int diff_tree_sha1_top(const unsigned char *old, { int ret; - diff_setup(detect_rename, diff_score_opt, reverse_diff, - (generate_patch ? -1 : line_termination), + diff_setup(detect_rename, diff_score_opt, pickaxe, + reverse_diff, (generate_patch ? -1 : line_termination), NULL, 0); ret = diff_tree_sha1(old, new, base); diff_flush(); @@ -285,8 +286,8 @@ static int diff_root_tree(const unsigned char *new, const char *base) void *tree; unsigned long size; - diff_setup(detect_rename, diff_score_opt, reverse_diff, - (generate_patch ? -1 : line_termination), + diff_setup(detect_rename, diff_score_opt, pickaxe, + reverse_diff, (generate_patch ? -1 : line_termination), NULL, 0); tree = read_object_with_reference(new, "tree", &size, NULL); if (!tree) @@ -430,7 +431,7 @@ static int diff_tree_stdin(char *line) } static char *diff_tree_usage = -"git-diff-tree [-p] [-r] [-z] [--stdin] [-M] [-C] [-R] [-m] [-s] [-v] <tree-ish> <tree-ish>"; +"git-diff-tree [-p] [-r] [-z] [--stdin] [-M] [-C] [-R] [-S<string>] [-m] [-s] [-v] <tree-ish> <tree-ish>"; int main(int argc, char **argv) { @@ -473,6 +474,10 @@ int main(int argc, char **argv) recursive = generate_patch = 1; continue; } + if (!strncmp(arg, "-S", 2)) { + pickaxe = arg + 2; + continue; + } if (!strncmp(arg, "-M", 2)) { detect_rename = recursive = generate_patch = 1; diff_score_opt = diff_scoreopt_parse(arg); @@ -17,6 +17,7 @@ static int reverse_diff; static int diff_raw_output = -1; static const char **pathspec; static int speccnt; +static const char *pickaxe; static int minimum_score; static const char *external_diff(void) @@ -511,8 +512,9 @@ int diff_scoreopt_parse(const char *opt) return MAX_SCORE * num / scale; } -void diff_setup(int detect_rename_, int minimum_score_, int reverse_diff_, - int diff_raw_output_, +void diff_setup(int detect_rename_, int minimum_score_, + char *pickaxe_, + int reverse_diff_, int diff_raw_output_, const char **pathspec_, int speccnt_) { detect_rename = detect_rename_; @@ -521,15 +523,16 @@ void diff_setup(int detect_rename_, int minimum_score_, int reverse_diff_, diff_raw_output = diff_raw_output_; speccnt = speccnt_; minimum_score = minimum_score_ ? : DEFAULT_MINIMUM_SCORE; + pickaxe = pickaxe_; } static struct diff_queue_struct queued_diff; -struct diff_file_pair *diff_queue(struct diff_queue_struct *queue, +struct diff_filepair *diff_queue(struct diff_queue_struct *queue, struct diff_filespec *one, struct diff_filespec *two) { - struct diff_file_pair *dp = xmalloc(sizeof(*dp)); + struct diff_filepair *dp = xmalloc(sizeof(*dp)); dp->one = one; dp->two = two; dp->xfrm_msg = 0; @@ -549,7 +552,7 @@ static const char *git_object_type(unsigned mode) return S_ISDIR(mode) ? "tree" : "blob"; } -static void diff_flush_raw(struct diff_file_pair *p) +static void diff_flush_raw(struct diff_filepair *p) { struct diff_filespec *it; int addremove; @@ -583,7 +586,7 @@ static void diff_flush_raw(struct diff_file_pair *p) sha1_to_hex(it->sha1), it->path, diff_raw_output); } -static void diff_flush_patch(struct diff_file_pair *p) +static void diff_flush_patch(struct diff_filepair *p) { const char *name, *other; @@ -600,7 +603,7 @@ static int identical(struct diff_filespec *one, struct diff_filespec *two) { /* This function is written stricter than necessary to support * the currently implemented transformers, but the idea is to - * let transformers to produce diff_file_pairs any way they want, + * let transformers to produce diff_filepairs any way they want, * and filter and clean them up here before producing the output. */ @@ -623,7 +626,7 @@ static int identical(struct diff_filespec *one, struct diff_filespec *two) return 0; } -static void diff_flush_one(struct diff_file_pair *p) +static void diff_flush_one(struct diff_filepair *p) { if (identical(p->one, p->two)) return; @@ -640,11 +643,13 @@ void diff_flush(void) if (detect_rename) diff_detect_rename(q, detect_rename, minimum_score); + if (pickaxe) + diff_pickaxe(q, pickaxe); for (i = 0; i < q->nr; i++) diff_flush_one(q->queue[i]); for (i = 0; i < q->nr; i++) { - struct diff_file_pair *p = q->queue[i]; + struct diff_filepair *p = q->queue[i]; diff_free_filespec_data(p->one); diff_free_filespec_data(p->two); free(p->xfrm_msg); @@ -20,6 +20,7 @@ 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, + char *pickaxe, int reverse, int raw_output, const char **spec, int cnt); diff --git a/diffcore-pickaxe.c b/diffcore-pickaxe.c new file mode 100644 index 0000000000..ee22e36abc --- /dev/null +++ b/diffcore-pickaxe.c @@ -0,0 +1,56 @@ +/* + * Copyright (C) 2005 Junio C Hamano + */ +#include "cache.h" +#include "diff.h" +#include "diffcore.h" +#include "delta.h" + +static int contains(struct diff_filespec *one, + const char *needle, unsigned long len) +{ + unsigned long offset, sz; + const char *data; + if (diff_populate_filespec(one)) + return 0; + sz = one->size; + data = one->data; + for (offset = 0; offset + len <= sz; offset++) + if (!strncmp(needle, data + offset, len)) + return 1; + return 0; +} + +void diff_pickaxe(struct diff_queue_struct *q, const char *needle) +{ + unsigned long len = strlen(needle); + int i; + struct diff_queue_struct outq; + outq.queue = NULL; + outq.nr = outq.alloc = 0; + + for (i = 0; i < q->nr; i++) { + struct diff_filepair *p = q->queue[i]; + if (!p->one->file_valid) { + if (!p->two->file_valid) + continue; /* ignore nonsense */ + /* created */ + if (contains(p->two, needle, len)) + diff_queue(&outq, p->one, p->two); + } + else if (!p->two->file_valid) { + if (contains(p->one, needle, len)) + diff_queue(&outq, p->one, p->two); + } + else if (contains(p->one, needle, len) != + contains(p->two, needle, len)) + diff_queue(&outq, p->one, p->two); + } + for (i = 0; i < q->nr; i++) { + struct diff_filepair *p = q->queue[i]; + free(p); + } + free(q->queue); + *q = outq; + return; +} diff --git a/diffcore-rename.c b/diffcore-rename.c index 8aa8f841c4..6dd753bc63 100644 --- a/diffcore-rename.c +++ b/diffcore-rename.c @@ -129,7 +129,7 @@ static void record_rename_pair(struct diff_queue_struct *outq, * To achieve this sort order, we give xform_work the number * above. */ - struct diff_file_pair *dp = diff_queue(outq, src, dst); + struct diff_filepair *dp = diff_queue(outq, src, dst); dp->xfrm_work = (rank * 2 + 1) | (score<<RENAME_SCORE_SHIFT); dst->xfrm_flags |= RENAME_DST_MATCHED; } @@ -148,7 +148,7 @@ static void debug_filespec(struct diff_filespec *s, int x, const char *one) s->size, s->xfrm_flags); } -static void debug_filepair(const struct diff_file_pair *p, int i) +static void debug_filepair(const struct diff_filepair *p, int i) { debug_filespec(p->one, i, "one"); debug_filespec(p->two, i, "two"); @@ -165,7 +165,7 @@ static void debug_queue(const char *msg, struct diff_queue_struct *q) fprintf(stderr, "%s\n", msg); fprintf(stderr, "q->nr = %d\n", q->nr); for (i = 0; i < q->nr; i++) { - struct diff_file_pair *p = q->queue[i]; + struct diff_filepair *p = q->queue[i]; debug_filepair(p, i); } } @@ -180,8 +180,8 @@ static void debug_queue(const char *msg, struct diff_queue_struct *q) */ static int rank_compare(const void *a_, const void *b_) { - const struct diff_file_pair *a = *(const struct diff_file_pair **)a_; - const struct diff_file_pair *b = *(const struct diff_file_pair **)b_; + const struct diff_filepair *a = *(const struct diff_filepair **)a_; + const struct diff_filepair *b = *(const struct diff_filepair **)b_; int a_rank = a->xfrm_work & ((1<<RENAME_SCORE_SHIFT) - 1); int b_rank = b->xfrm_work & ((1<<RENAME_SCORE_SHIFT) - 1); @@ -207,7 +207,7 @@ static int needs_to_stay(struct diff_queue_struct *q, int i, * as the source of rename/copy), we need to copy, not rename. */ while (i < q->nr) { - struct diff_file_pair *p = q->queue[i++]; + struct diff_filepair *p = q->queue[i++]; if (!p->two->file_valid) continue; /* removed is fine */ if (strcmp(p->one->path, it->path)) @@ -243,15 +243,8 @@ void diff_detect_rename(struct diff_queue_struct *q, srcs[0] = &deleted; srcs[1] = &stay; - /* NEEDSWORK: - * (1) make sure we properly ignore but pass trees. - * - * (2) make sure we do right thing on the same path deleted - * and created in the same patch. - */ - for (i = 0; i < q->nr; i++) { - struct diff_file_pair *p = q->queue[i]; + struct diff_filepair *p = q->queue[i]; if (!p->one->file_valid) if (!p->two->file_valid) continue; /* ignore nonsense */ @@ -340,11 +333,11 @@ void diff_detect_rename(struct diff_queue_struct *q, * See comments at the top of record_rename_pair for numbers used * to assign xfrm_work. * - * Note that we have not annotated the diff_file_pair with any comment + * Note that we have not annotated the diff_filepair with any comment * so there is nothing other than p to free. */ for (i = 0; i < q->nr; i++) { - struct diff_file_pair *dp, *p = q->queue[i]; + struct diff_filepair *dp, *p = q->queue[i]; if (!p->one->file_valid) { if (p->two->file_valid) { /* creation */ @@ -378,7 +371,7 @@ void diff_detect_rename(struct diff_queue_struct *q, /* Copy it out to q, removing duplicates. */ for (i = 0; i < outq.nr; i++) { - struct diff_file_pair *p = outq.queue[i]; + struct diff_filepair *p = outq.queue[i]; if (!p->one->file_valid) { /* created */ if (p->two->xfrm_flags & RENAME_DST_MATCHED) @@ -395,7 +388,7 @@ void diff_detect_rename(struct diff_queue_struct *q, } else if (strcmp(p->one->path, p->two->path)) { /* rename or copy */ - struct diff_file_pair *dp = + struct diff_filepair *dp = diff_queue(q, p->one, p->two); int msglen = (strlen(p->one->path) + strlen(p->two->path) + 100); diff --git a/diffcore.h b/diffcore.h index 5fa7067603..c3809ef858 100644 --- a/diffcore.h +++ b/diffcore.h @@ -38,7 +38,7 @@ extern void fill_filespec(struct diff_filespec *, const unsigned char *, extern int diff_populate_filespec(struct diff_filespec *); extern void diff_free_filespec_data(struct diff_filespec *); -struct diff_file_pair { +struct diff_filepair { struct diff_filespec *one; struct diff_filespec *two; char *xfrm_msg; @@ -47,14 +47,15 @@ struct diff_file_pair { }; struct diff_queue_struct { - struct diff_file_pair **queue; + struct diff_filepair **queue; int alloc; int nr; }; -extern struct diff_file_pair *diff_queue(struct diff_queue_struct *, - struct diff_filespec *, - struct diff_filespec *); +extern struct diff_filepair *diff_queue(struct diff_queue_struct *, + struct diff_filespec *, + struct diff_filespec *); extern void diff_detect_rename(struct diff_queue_struct *, int, int); +extern void diff_pickaxe(struct diff_queue_struct *, const char *); #endif |