From c7e1a73641e24340bf93f6f1792220fa9154cda3 Mon Sep 17 00:00:00 2001 From: Jens Lehmann Date: Thu, 4 Mar 2010 22:20:33 +0100 Subject: git diff --submodule: Show detailed dirty status of submodules When encountering a dirty submodule while doing "git diff --submodule" print an extra line for new untracked content and another for modified but already tracked content. And if the HEAD of the submodule is equal to the ref diffed against in the superproject, drop the output which would just show the same SHA1s and no commit message headlines. To achieve that, the dirty_submodule bitfield is expanded to two bits. The output of "git status" inside the submodule is parsed to set the according bits. Signed-off-by: Jens Lehmann Signed-off-by: Junio C Hamano --- diffcore.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'diffcore.h') diff --git a/diffcore.h b/diffcore.h index 66687c3fe5..fcd00bf27a 100644 --- a/diffcore.h +++ b/diffcore.h @@ -42,7 +42,9 @@ struct diff_filespec { #define DIFF_FILE_VALID(spec) (((spec)->mode) != 0) unsigned should_free : 1; /* data should be free()'ed */ unsigned should_munmap : 1; /* data should be munmap()'ed */ - unsigned dirty_submodule : 1; /* For submodules: its work tree is dirty */ + unsigned dirty_submodule : 2; /* For submodules: its work tree is dirty */ +#define DIRTY_SUBMODULE_UNTRACKED 1 +#define DIRTY_SUBMODULE_MODIFIED 2 struct userdiff_driver *driver; /* data should be considered "binary"; -1 means "don't know yet" */ -- cgit v1.3 From 9ca5df90615aa3c6b60e1bc8f03db6cae98e816c Mon Sep 17 00:00:00 2001 From: Bo Yang Date: Thu, 6 May 2010 21:52:27 -0700 Subject: Add a macro DIFF_QUEUE_CLEAR. Refactor the diff_queue_struct code, this macro help to reset the structure. Signed-off-by: Bo Yang Signed-off-by: Junio C Hamano --- diff.c | 13 +++++-------- diffcore-break.c | 6 ++---- diffcore-pickaxe.c | 3 +-- diffcore-rename.c | 3 +-- diffcore.h | 5 +++++ 5 files changed, 14 insertions(+), 16 deletions(-) (limited to 'diffcore.h') diff --git a/diff.c b/diff.c index e40c1271da..4a350e365e 100644 --- a/diff.c +++ b/diff.c @@ -2540,6 +2540,7 @@ static void run_checkdiff(struct diff_filepair *p, struct diff_options *o) void diff_setup(struct diff_options *options) { memset(options, 0, sizeof(*options)); + memset(&diff_queued_diff, 0, sizeof(diff_queued_diff)); options->file = stdout; @@ -3457,8 +3458,7 @@ int diff_flush_patch_id(struct diff_options *options, unsigned char *sha1) diff_free_filepair(q->queue[i]); free(q->queue); - q->queue = NULL; - q->nr = q->alloc = 0; + DIFF_QUEUE_CLEAR(q); return result; } @@ -3586,8 +3586,7 @@ void diff_flush(struct diff_options *options) diff_free_filepair(q->queue[i]); free_queue: free(q->queue); - q->queue = NULL; - q->nr = q->alloc = 0; + DIFF_QUEUE_CLEAR(q); if (options->close_file) fclose(options->file); @@ -3609,8 +3608,7 @@ static void diffcore_apply_filter(const char *filter) int i; struct diff_queue_struct *q = &diff_queued_diff; struct diff_queue_struct outq; - outq.queue = NULL; - outq.nr = outq.alloc = 0; + DIFF_QUEUE_CLEAR(&outq); if (!filter) return; @@ -3678,8 +3676,7 @@ static void diffcore_skip_stat_unmatch(struct diff_options *diffopt) int i; struct diff_queue_struct *q = &diff_queued_diff; struct diff_queue_struct outq; - outq.queue = NULL; - outq.nr = outq.alloc = 0; + DIFF_QUEUE_CLEAR(&outq); for (i = 0; i < q->nr; i++) { struct diff_filepair *p = q->queue[i]; diff --git a/diffcore-break.c b/diffcore-break.c index 3a7b60a037..44f8678d22 100644 --- a/diffcore-break.c +++ b/diffcore-break.c @@ -162,8 +162,7 @@ void diffcore_break(int break_score) if (!merge_score) merge_score = DEFAULT_MERGE_SCORE; - outq.nr = outq.alloc = 0; - outq.queue = NULL; + DIFF_QUEUE_CLEAR(&outq); for (i = 0; i < q->nr; i++) { struct diff_filepair *p = q->queue[i]; @@ -256,8 +255,7 @@ void diffcore_merge_broken(void) struct diff_queue_struct outq; int i, j; - outq.nr = outq.alloc = 0; - outq.queue = NULL; + DIFF_QUEUE_CLEAR(&outq); for (i = 0; i < q->nr; i++) { struct diff_filepair *p = q->queue[i]; diff --git a/diffcore-pickaxe.c b/diffcore-pickaxe.c index d0ef839700..929de15aa9 100644 --- a/diffcore-pickaxe.c +++ b/diffcore-pickaxe.c @@ -55,8 +55,7 @@ void diffcore_pickaxe(const char *needle, int opts) int i, has_changes; regex_t regex, *regexp = NULL; struct diff_queue_struct outq; - outq.queue = NULL; - outq.nr = outq.alloc = 0; + DIFF_QUEUE_CLEAR(&outq); if (opts & DIFF_PICKAXE_REGEX) { int err; diff --git a/diffcore-rename.c b/diffcore-rename.c index d6fd3cacd6..df41be56de 100644 --- a/diffcore-rename.c +++ b/diffcore-rename.c @@ -569,8 +569,7 @@ void diffcore_rename(struct diff_options *options) /* At this point, we have found some renames and copies and they * are recorded in rename_dst. The original list is still in *q. */ - outq.queue = NULL; - outq.nr = outq.alloc = 0; + DIFF_QUEUE_CLEAR(&outq); for (i = 0; i < q->nr; i++) { struct diff_filepair *p = q->queue[i]; struct diff_filepair *pair_to_free = NULL; diff --git a/diffcore.h b/diffcore.h index fcd00bf27a..5d05deaf68 100644 --- a/diffcore.h +++ b/diffcore.h @@ -92,6 +92,11 @@ struct diff_queue_struct { int alloc; int nr; }; +#define DIFF_QUEUE_CLEAR(q) \ + do { \ + (q)->queue = NULL; \ + (q)->nr = (q)->alloc = 0; \ + } while(0); extern struct diff_queue_struct diff_queued_diff; extern struct diff_filepair *diff_queue(struct diff_queue_struct *, -- cgit v1.3 From 1da6175d438a9849db07a68326ee05f291510074 Mon Sep 17 00:00:00 2001 From: Bo Yang Date: Thu, 6 May 2010 21:52:28 -0700 Subject: Make diffcore_std only can run once before a diff_flush When file renames/copies detection is turned on, the second diffcore_std will degrade a 'C' pair to a 'R' pair. And this may happen when we run 'git log --follow' with hard copies finding. That is, the try_to_follow_renames() will run diffcore_std to find the copies, and then 'git log' will issue another diffcore_std, which will reduce 'src->rename_used' and recognize this copy as a rename. This is not what we want. So, I think we really don't need to run diffcore_std more than one time. Signed-off-by: Bo Yang Signed-off-by: Junio C Hamano --- diff.c | 8 ++++++++ diffcore.h | 2 ++ 2 files changed, 10 insertions(+) (limited to 'diffcore.h') diff --git a/diff.c b/diff.c index 4a350e365e..f0985bc76a 100644 --- a/diff.c +++ b/diff.c @@ -3737,6 +3737,12 @@ void diffcore_fix_diff_index(struct diff_options *options) void diffcore_std(struct diff_options *options) { + /* We never run this function more than one time, because the + * rename/copy detection logic can only run once. + */ + if (diff_queued_diff.run) + return; + if (options->skip_stat_unmatch) diffcore_skip_stat_unmatch(options); if (options->break_opt != -1) @@ -3756,6 +3762,8 @@ void diffcore_std(struct diff_options *options) DIFF_OPT_SET(options, HAS_CHANGES); else DIFF_OPT_CLR(options, HAS_CHANGES); + + diff_queued_diff.run = 1; } int diff_result_code(struct diff_options *opt, int status) diff --git a/diffcore.h b/diffcore.h index 5d05deaf68..491bea0b44 100644 --- a/diffcore.h +++ b/diffcore.h @@ -91,11 +91,13 @@ struct diff_queue_struct { struct diff_filepair **queue; int alloc; int nr; + int run; }; #define DIFF_QUEUE_CLEAR(q) \ do { \ (q)->queue = NULL; \ (q)->nr = (q)->alloc = 0; \ + (q)->run = 0; \ } while(0); extern struct diff_queue_struct diff_queued_diff; -- cgit v1.3 From cf958afd8368ebce1cabb2f7ae2799306cc2de03 Mon Sep 17 00:00:00 2001 From: Matthieu Moy Date: Thu, 5 Aug 2010 18:14:25 +0200 Subject: Document -B[/], -M and -C variants of -B, -M and -C These options take an optional argument, but this optional argument was not documented. Original patch by Matthieu Moy, but documentation for -B mostly copied from the explanations of Junio C Hamano. While we're there, fix a typo in a comment in diffcore.h. Signed-off-by: Matthieu Moy Signed-off-by: Junio C Hamano --- Documentation/diff-options.txt | 35 ++++++++++++++++++++++++++++++----- diffcore.h | 2 +- 2 files changed, 31 insertions(+), 6 deletions(-) (limited to 'diffcore.h') diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt index 2371262b10..eecedaab6e 100644 --- a/Documentation/diff-options.txt +++ b/Documentation/diff-options.txt @@ -206,10 +206,29 @@ endif::git-format-patch[] the diff-patch output format. Non default number of digits can be specified with `--abbrev=`. --B:: - Break complete rewrite changes into pairs of delete and create. - --M:: +-B[][/]:: + Break complete rewrite changes into pairs of delete and + create. This serves two purposes: ++ +It affects the way a change that amounts to a total rewrite of a file +not as a series of deletion and insertion mixed together with a very +few lines that happen to match textually as the context, but as a +single deletion of everything old followed by a single insertion of +everything new, and the number `m` controls this aspect of the -B +option (defaults to 60%). `-B/70%` specifies that less than 30% of the +original should remain in the result for git to consider it a total +rewrite (i.e. otherwise the resulting patch will be a series of +deletion and insertion mixed together with context lines). ++ +When used with -M, a totally-rewritten file is also considered as the +source of a rename (usually -M only considers a file that disappeared +as the source of a rename), and the number `n` controls this aspect of +the -B option (defaults to 50%). `-B20%` specifies that a change with +addition and deletion compared to 20% or more of the file's size are +eligible for being picked up as a possible source of a rename to +another file. + +-M[]:: ifndef::git-log[] Detect renames. endif::git-log[] @@ -218,9 +237,15 @@ ifdef::git-log[] For following files across renames while traversing history, see `--follow`. endif::git-log[] + If `n` is specified, it is a is a threshold on the similarity + index (i.e. amount of addition/deletions compared to the + file's size). For example, `-M90%` means git should consider a + delete/add pair to be a rename if more than 90% of the file + hasn't changed. --C:: +-C[]:: Detect copies as well as renames. See also `--find-copies-harder`. + If `n` is specified, it has the same meaning as for `-M`. ifndef::git-format-patch[] --diff-filter=[ACDMRTUXB*]:: diff --git a/diffcore.h b/diffcore.h index 491bea0b44..fed9b151b5 100644 --- a/diffcore.h +++ b/diffcore.h @@ -18,7 +18,7 @@ #define MAX_SCORE 60000.0 #define DEFAULT_RENAME_SCORE 30000 /* rename/copy similarity minimum (50%) */ #define DEFAULT_BREAK_SCORE 30000 /* minimum for break to happen (50%) */ -#define DEFAULT_MERGE_SCORE 36000 /* maximum for break-merge to happen 60%) */ +#define DEFAULT_MERGE_SCORE 36000 /* maximum for break-merge to happen (60%) */ #define MINIMUM_BREAK_SIZE 400 /* do not break a file smaller than this */ -- cgit v1.3 From 987460611ab08ebac83ead9a5ee316d3b3823e7f Mon Sep 17 00:00:00 2001 From: Jonathan Nieder Date: Thu, 12 Aug 2010 17:11:15 -0500 Subject: Standardize do { ... } while (0) style Signed-off-by: Jonathan Nieder Signed-off-by: Junio C Hamano --- base85.c | 6 +++--- cache.h | 2 +- diffcore.h | 8 ++++---- http.h | 4 ++-- 4 files changed, 10 insertions(+), 10 deletions(-) (limited to 'diffcore.h') diff --git a/base85.c b/base85.c index e459feebbf..781b5754f0 100644 --- a/base85.c +++ b/base85.c @@ -7,9 +7,9 @@ #define say1(a,b) fprintf(stderr, a, b) #define say2(a,b,c) fprintf(stderr, a, b, c) #else -#define say(a) do {} while(0) -#define say1(a,b) do {} while(0) -#define say2(a,b,c) do {} while(0) +#define say(a) do { /* nothing */ } while (0) +#define say1(a,b) do { /* nothing */ } while (0) +#define say2(a,b,c) do { /* nothing */ } while (0) #endif static const char en85[] = { diff --git a/cache.h b/cache.h index c9fa3df7f5..1e690d1240 100644 --- a/cache.h +++ b/cache.h @@ -449,7 +449,7 @@ extern int init_db(const char *template_dir, unsigned int flags); alloc = alloc_nr(alloc); \ x = xrealloc((x), alloc * sizeof(*(x))); \ } \ - } while(0) + } while (0) /* Initialize and use the cache information */ extern int read_index(struct index_state *); diff --git a/diffcore.h b/diffcore.h index fed9b151b5..05ebc115a1 100644 --- a/diffcore.h +++ b/diffcore.h @@ -98,7 +98,7 @@ struct diff_queue_struct { (q)->queue = NULL; \ (q)->nr = (q)->alloc = 0; \ (q)->run = 0; \ - } while(0); + } while (0) extern struct diff_queue_struct diff_queued_diff; extern struct diff_filepair *diff_queue(struct diff_queue_struct *, @@ -118,9 +118,9 @@ void diff_debug_filespec(struct diff_filespec *, int, const char *); void diff_debug_filepair(const struct diff_filepair *, int); void diff_debug_queue(const char *, struct diff_queue_struct *); #else -#define diff_debug_filespec(a,b,c) do {} while(0) -#define diff_debug_filepair(a,b) do {} while(0) -#define diff_debug_queue(a,b) do {} while(0) +#define diff_debug_filespec(a,b,c) do { /* nothing */ } while (0) +#define diff_debug_filepair(a,b) do { /* nothing */ } while (0) +#define diff_debug_queue(a,b) do { /* nothing */ } while (0) #endif extern int diffcore_count_changes(struct diff_filespec *src, diff --git a/http.h b/http.h index a0b5901594..173f74c829 100644 --- a/http.h +++ b/http.h @@ -23,10 +23,10 @@ #endif #if LIBCURL_VERSION_NUM < 0x070704 -#define curl_global_cleanup() do { /* nothing */ } while(0) +#define curl_global_cleanup() do { /* nothing */ } while (0) #endif #if LIBCURL_VERSION_NUM < 0x070800 -#define curl_global_init(a) do { /* nothing */ } while(0) +#define curl_global_init(a) do { /* nothing */ } while (0) #endif #if (LIBCURL_VERSION_NUM < 0x070c04) || (LIBCURL_VERSION_NUM == 0x071000) -- cgit v1.3 From 44c48a909ae3d49afcaedb2b2cd042d1e329ee93 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Fri, 13 Aug 2010 12:17:45 -0700 Subject: diff --follow: do call diffcore_std() as necessary Usually, diff frontends populate the output queue with filepairs without any rename information and call diffcore_std() to sort the renames out. When --follow is in effect, however, diff-tree family of frontend has a hack that looks like this: diff-tree frontend -> diff_tree_sha1() . populate diff_queued_diff . if --follow is in effect and there is only one change that creates the target path, then -> try_to_follow_renames() -> diff_tree_sha1() with no pathspec but with -C -> diffcore_std() to find renames . if rename is found, tweak diff_queued_diff and put a single filepair that records the found rename there -> diffcore_std() . tweak elements on diff_queued_diff by - rename detection - path ordering - pickaxe filtering We need to skip parts of the second call to diffcore_std() that is related to rename detection, and do so only when try_to_follow_renames() did find a rename. Earlier 1da6175 (Make diffcore_std only can run once before a diff_flush, 2010-05-06) tried to deal with this issue incorrectly; it unconditionally disabled any second call to diffcore_std(). This hopefully fixes the breakage. Signed-off-by: Junio C Hamano --- diff.c | 27 +++++++++++++-------------- diff.h | 3 +++ diffcore.h | 2 -- tree-diff.c | 11 +++++++++++ 4 files changed, 27 insertions(+), 16 deletions(-) (limited to 'diffcore.h') diff --git a/diff.c b/diff.c index bf65892f78..93004922de 100644 --- a/diff.c +++ b/diff.c @@ -4064,25 +4064,24 @@ void diffcore_fix_diff_index(struct diff_options *options) void diffcore_std(struct diff_options *options) { - /* We never run this function more than one time, because the - * rename/copy detection logic can only run once. - */ - if (diff_queued_diff.run) - return; - if (options->skip_stat_unmatch) diffcore_skip_stat_unmatch(options); - 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 (!options->found_follow) { + /* See try_to_follow_renames() in tree-diff.c */ + 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 (options->pickaxe) diffcore_pickaxe(options->pickaxe, options->pickaxe_opts); if (options->orderfile) diffcore_order(options->orderfile); - diff_resolve_rename_copy(); + if (!options->found_follow) + /* See try_to_follow_renames() in tree-diff.c */ + diff_resolve_rename_copy(); diffcore_apply_filter(options->filter); if (diff_queued_diff.nr && !DIFF_OPT_TST(options, DIFF_FROM_CONTENTS)) @@ -4090,7 +4089,7 @@ void diffcore_std(struct diff_options *options) else DIFF_OPT_CLR(options, HAS_CHANGES); - diff_queued_diff.run = 1; + options->found_follow = 0; } int diff_result_code(struct diff_options *opt, int status) diff --git a/diff.h b/diff.h index 063d10ac22..6fff024e3a 100644 --- a/diff.h +++ b/diff.h @@ -126,6 +126,9 @@ struct diff_options { /* this is set by diffcore for DIFF_FORMAT_PATCH */ int found_changes; + /* to support internal diff recursion by --follow hack*/ + int found_follow; + FILE *file; int close_file; diff --git a/diffcore.h b/diffcore.h index 05ebc115a1..8b3241ad13 100644 --- a/diffcore.h +++ b/diffcore.h @@ -91,13 +91,11 @@ struct diff_queue_struct { struct diff_filepair **queue; int alloc; int nr; - int run; }; #define DIFF_QUEUE_CLEAR(q) \ do { \ (q)->queue = NULL; \ (q)->nr = (q)->alloc = 0; \ - (q)->run = 0; \ } while (0) extern struct diff_queue_struct diff_queued_diff; diff --git a/tree-diff.c b/tree-diff.c index 5b68c0864c..cd659c6fe4 100644 --- a/tree-diff.c +++ b/tree-diff.c @@ -359,6 +359,7 @@ static void try_to_follow_renames(struct tree_desc *t1, struct tree_desc *t2, co diff_tree_release_paths(&diff_opts); /* Go through the new set of filepairing, and see if we find a more interesting one */ + opt->found_follow = 0; for (i = 0; i < q->nr; i++) { struct diff_filepair *p = q->queue[i]; @@ -376,6 +377,16 @@ static void try_to_follow_renames(struct tree_desc *t1, struct tree_desc *t2, co diff_tree_release_paths(opt); opt->paths[0] = xstrdup(p->one->path); diff_tree_setup_paths(opt->paths, opt); + + /* + * The caller expects us to return a set of vanilla + * filepairs to let a later call to diffcore_std() + * it makes to sort the renames out (among other + * things), but we already have found renames + * ourselves; signal diffcore_std() not to muck with + * rename information. + */ + opt->found_follow = 1; break; } } -- cgit v1.3 From 382f013bc40452e4c24b8698217a14ff35f6dcec Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Tue, 31 Aug 2010 13:44:39 -0700 Subject: diff: pass the entire diff-options to diffcore_pickaxe() That would make it easier to give enhanced feature to the pickaxe transformation. Signed-off-by: Junio C Hamano --- diff.c | 2 +- diffcore-pickaxe.c | 4 +++- diffcore.h | 2 +- 3 files changed, 5 insertions(+), 3 deletions(-) (limited to 'diffcore.h') diff --git a/diff.c b/diff.c index 6fb97d4623..6631fa387c 100644 --- a/diff.c +++ b/diff.c @@ -4166,7 +4166,7 @@ void diffcore_std(struct diff_options *options) diffcore_merge_broken(); } if (options->pickaxe) - diffcore_pickaxe(options->pickaxe, options->pickaxe_opts); + diffcore_pickaxe(options); if (options->orderfile) diffcore_order(options->orderfile); if (!options->found_follow) diff --git a/diffcore-pickaxe.c b/diffcore-pickaxe.c index 929de15aa9..13f61fbb08 100644 --- a/diffcore-pickaxe.c +++ b/diffcore-pickaxe.c @@ -48,8 +48,10 @@ static unsigned int contains(struct diff_filespec *one, return cnt; } -void diffcore_pickaxe(const char *needle, int opts) +void diffcore_pickaxe(struct diff_options *o) { + const char *needle = o->pickaxe; + int opts = o->pickaxe_opts; struct diff_queue_struct *q = &diff_queued_diff; unsigned long len = strlen(needle); int i, has_changes; diff --git a/diffcore.h b/diffcore.h index 8b3241ad13..b8f1fdecf4 100644 --- a/diffcore.h +++ b/diffcore.h @@ -107,7 +107,7 @@ extern void diff_q(struct diff_queue_struct *, struct diff_filepair *); extern void diffcore_break(int); extern void diffcore_rename(struct diff_options *); extern void diffcore_merge_broken(void); -extern void diffcore_pickaxe(const char *needle, int opts); +extern void diffcore_pickaxe(struct diff_options *); extern void diffcore_order(const char *orderfile); #define DIFF_DEBUG 0 -- cgit v1.3