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diff --git a/diff-lib.c b/diff-lib.c
index e7eaff9a68ccbcc692522c9956f0dae9af45f3f1..b3797592c63a86b46a3af0d875b6fe04ea43f536 100644 (file)
--- a/diff-lib.c
+++ b/diff-lib.c
#include "cache-tree.h"
#include "unpack-trees.h"
#include "refs.h"
+#include "submodule.h"
/*
* diff-files
return -1;
return 1;
}
- if (has_symlink_leading_path(ce_namelen(ce), ce->name))
+ if (has_symlink_leading_path(ce->name, ce_namelen(ce)))
return 1;
if (S_ISDIR(st->st_mode)) {
unsigned char sub[20];
return 0;
}
+/*
+ * Has a file changed or has a submodule new commits or a dirty work tree?
+ *
+ * Return 1 when changes are detected, 0 otherwise. If the DIRTY_SUBMODULES
+ * option is set, the caller does not only want to know if a submodule is
+ * modified at all but wants to know all the conditions that are met (new
+ * commits, untracked content and/or modified content).
+ */
+static int match_stat_with_submodule(struct diff_options *diffopt,
+ struct cache_entry *ce, struct stat *st,
+ unsigned ce_option, unsigned *dirty_submodule)
+{
+ int changed = ce_match_stat(ce, st, ce_option);
+ if (S_ISGITLINK(ce->ce_mode)) {
+ unsigned orig_flags = diffopt->flags;
+ if (!DIFF_OPT_TST(diffopt, OVERRIDE_SUBMODULE_CONFIG))
+ set_diffopt_flags_from_submodule_config(diffopt, ce->name);
+ if (DIFF_OPT_TST(diffopt, IGNORE_SUBMODULES))
+ changed = 0;
+ else if (!DIFF_OPT_TST(diffopt, IGNORE_DIRTY_SUBMODULES)
+ && (!changed || DIFF_OPT_TST(diffopt, DIRTY_SUBMODULES)))
+ *dirty_submodule = is_submodule_modified(ce->name, DIFF_OPT_TST(diffopt, IGNORE_UNTRACKED_IN_SUBMODULES));
+ diffopt->flags = orig_flags;
+ }
+ return changed;
+}
+
int run_diff_files(struct rev_info *revs, unsigned int option)
{
int entries, i;
int silent_on_removed = option & DIFF_SILENT_ON_REMOVED;
unsigned ce_option = ((option & DIFF_RACY_IS_MODIFIED)
? CE_MATCH_RACY_IS_DIRTY : 0);
- char symcache[PATH_MAX];
+
+ diff_set_mnemonic_prefix(&revs->diffopt, "i/", "w/");
if (diff_unmerged_stage < 0)
diff_unmerged_stage = 2;
entries = active_nr;
- symcache[0] = '\0';
for (i = 0; i < entries; i++) {
struct stat st;
unsigned int oldmode, newmode;
struct cache_entry *ce = active_cache[i];
int changed;
+ unsigned dirty_submodule = 0;
- if (DIFF_OPT_TST(&revs->diffopt, QUIET) &&
- DIFF_OPT_TST(&revs->diffopt, HAS_CHANGES))
+ if (diff_can_quit_early(&revs->diffopt))
break;
- if (!ce_path_match(ce, revs->prune_data))
+ if (!ce_path_match(ce, &revs->prune_data))
continue;
if (ce_stage(ce)) {
struct combine_diff_path *dpath;
+ struct diff_filepair *pair;
+ unsigned int wt_mode = 0;
int num_compare_stages = 0;
size_t path_len;
changed = check_removed(ce, &st);
if (!changed)
- dpath->mode = ce_mode_from_stat(ce, st.st_mode);
+ wt_mode = ce_mode_from_stat(ce, st.st_mode);
else {
if (changed < 0) {
perror(ce->name);
}
if (silent_on_removed)
continue;
+ wt_mode = 0;
}
+ dpath->mode = wt_mode;
while (i < entries) {
struct cache_entry *nce = active_cache[i];
* Show the diff for the 'ce' if we found the one
* from the desired stage.
*/
- diff_unmerge(&revs->diffopt, ce->name, 0, null_sha1);
+ pair = diff_unmerge(&revs->diffopt, ce->name);
+ if (wt_mode)
+ pair->two->mode = wt_mode;
if (ce_stage(ce) != diff_unmerged_stage)
continue;
}
- if (ce_uptodate(ce))
+ if (ce_uptodate(ce) || ce_skip_worktree(ce))
continue;
- changed = check_removed(ce, &st);
+ /* If CE_VALID is set, don't look at workdir for file removal */
+ changed = (ce->ce_flags & CE_VALID) ? 0 : check_removed(ce, &st);
if (changed) {
if (changed < 0) {
perror(ce->name);
if (silent_on_removed)
continue;
diff_addremove(&revs->diffopt, '-', ce->ce_mode,
- ce->sha1, ce->name);
+ ce->sha1, ce->name, 0);
continue;
}
- changed = ce_match_stat(ce, &st, ce_option);
- if (!changed) {
+ changed = match_stat_with_submodule(&revs->diffopt, ce, &st,
+ ce_option, &dirty_submodule);
+ if (!changed && !dirty_submodule) {
ce_mark_uptodate(ce);
if (!DIFF_OPT_TST(&revs->diffopt, FIND_COPIES_HARDER))
continue;
newmode = ce_mode_from_stat(ce, st.st_mode);
diff_change(&revs->diffopt, oldmode, newmode,
ce->sha1, (changed ? null_sha1 : ce->sha1),
- ce->name);
+ ce->name, 0, dirty_submodule);
}
diffcore_std(&revs->diffopt);
* diff-index
*/
-struct oneway_unpack_data {
- struct rev_info *revs;
- char symcache[PATH_MAX];
-};
-
/* A file entry went away or appeared */
static void diff_index_show_file(struct rev_info *revs,
const char *prefix,
struct cache_entry *ce,
- const unsigned char *sha1, unsigned int mode)
+ const unsigned char *sha1, unsigned int mode,
+ unsigned dirty_submodule)
{
diff_addremove(&revs->diffopt, prefix[0], mode,
- sha1, ce->name);
+ sha1, ce->name, dirty_submodule);
}
static int get_stat_data(struct cache_entry *ce,
const unsigned char **sha1p,
unsigned int *modep,
int cached, int match_missing,
- struct oneway_unpack_data *cbdata)
+ unsigned *dirty_submodule, struct diff_options *diffopt)
{
const unsigned char *sha1 = ce->sha1;
unsigned int mode = ce->ce_mode;
- if (!cached) {
+ if (!cached && !ce_uptodate(ce)) {
int changed;
struct stat st;
changed = check_removed(ce, &st);
}
return -1;
}
- changed = ce_match_stat(ce, &st, 0);
+ changed = match_stat_with_submodule(diffopt, ce, &st,
+ 0, dirty_submodule);
if (changed) {
mode = ce_mode_from_stat(ce, st.st_mode);
sha1 = null_sha1;
return 0;
}
-static void show_new_file(struct oneway_unpack_data *cbdata,
+static void show_new_file(struct rev_info *revs,
struct cache_entry *new,
int cached, int match_missing)
{
const unsigned char *sha1;
unsigned int mode;
- struct rev_info *revs = cbdata->revs;
+ unsigned dirty_submodule = 0;
/*
* New file in the index: it might actually be different in
* the working copy.
*/
- if (get_stat_data(new, &sha1, &mode, cached, match_missing, cbdata) < 0)
+ if (get_stat_data(new, &sha1, &mode, cached, match_missing,
+ &dirty_submodule, &revs->diffopt) < 0)
return;
- diff_index_show_file(revs, "+", new, sha1, mode);
+ diff_index_show_file(revs, "+", new, sha1, mode, dirty_submodule);
}
-static int show_modified(struct oneway_unpack_data *cbdata,
+static int show_modified(struct rev_info *revs,
struct cache_entry *old,
struct cache_entry *new,
int report_missing,
{
unsigned int mode, oldmode;
const unsigned char *sha1;
- struct rev_info *revs = cbdata->revs;
+ unsigned dirty_submodule = 0;
- if (get_stat_data(new, &sha1, &mode, cached, match_missing, cbdata) < 0) {
+ if (get_stat_data(new, &sha1, &mode, cached, match_missing,
+ &dirty_submodule, &revs->diffopt) < 0) {
if (report_missing)
diff_index_show_file(revs, "-", old,
- old->sha1, old->ce_mode);
+ old->sha1, old->ce_mode, 0);
return -1;
}
}
oldmode = old->ce_mode;
- if (mode == oldmode && !hashcmp(sha1, old->sha1) &&
+ if (mode == oldmode && !hashcmp(sha1, old->sha1) && !dirty_submodule &&
!DIFF_OPT_TST(&revs->diffopt, FIND_COPIES_HARDER))
return 0;
diff_change(&revs->diffopt, oldmode, mode,
- old->sha1, sha1, old->name);
+ old->sha1, sha1, old->name, 0, dirty_submodule);
return 0;
}
-/*
- * This turns all merge entries into "stage 3". That guarantees that
- * when we read in the new tree (into "stage 1"), we won't lose sight
- * of the fact that we had unmerged entries.
- */
-static void mark_merge_entries(void)
-{
- int i;
- for (i = 0; i < active_nr; i++) {
- struct cache_entry *ce = active_cache[i];
- if (!ce_stage(ce))
- continue;
- ce->ce_flags |= CE_STAGEMASK;
- }
-}
-
/*
* This gets a mix of an existing index and a tree, one pathname entry
* at a time. The index entry may be a single stage-0 one, but it could
struct cache_entry *idx,
struct cache_entry *tree)
{
- struct oneway_unpack_data *cbdata = o->unpack_data;
- struct rev_info *revs = cbdata->revs;
+ struct rev_info *revs = o->unpack_data;
int match_missing, cached;
+ /* if the entry is not checked out, don't examine work tree */
+ cached = o->index_only ||
+ (idx && ((idx->ce_flags & CE_VALID) || ce_skip_worktree(idx)));
/*
* Backward compatibility wart - "diff-index -m" does
* not mean "do not ignore merges", but "match_missing".
* But with the revision flag parsing, that's found in
* "!revs->ignore_merges".
*/
- cached = o->index_only;
match_missing = !revs->ignore_merges;
if (cached && idx && ce_stage(idx)) {
+ struct diff_filepair *pair;
+ pair = diff_unmerge(&revs->diffopt, idx->name);
if (tree)
- diff_unmerge(&revs->diffopt, idx->name, idx->ce_mode, idx->sha1);
+ fill_filespec(pair->one, tree->sha1, tree->ce_mode);
return;
}
* Something added to the tree?
*/
if (!tree) {
- show_new_file(cbdata, idx, cached, match_missing);
+ show_new_file(revs, idx, cached, match_missing);
return;
}
* Something removed from the tree?
*/
if (!idx) {
- diff_index_show_file(revs, "-", tree, tree->sha1, tree->ce_mode);
+ diff_index_show_file(revs, "-", tree, tree->sha1, tree->ce_mode, 0);
return;
}
/* Show difference between old and new */
- show_modified(cbdata, tree, idx, 1, cached, match_missing);
-}
-
-static inline void skip_same_name(struct cache_entry *ce, struct unpack_trees_options *o)
-{
- int len = ce_namelen(ce);
- const struct index_state *index = o->src_index;
-
- while (o->pos < index->cache_nr) {
- struct cache_entry *next = index->cache[o->pos];
- if (len != ce_namelen(next))
- break;
- if (memcmp(ce->name, next->name, len))
- break;
- o->pos++;
- }
+ show_modified(revs, tree, idx, 1, cached, match_missing);
}
/*
@@ -406,7 +413,7 @@ static inline void skip_same_name(struct cache_entry *ce, struct unpack_trees_op
* For diffing, the index is more important, and we only have a
* single tree.
*
- * We're supposed to return how many index entries we want to skip.
+ * We're supposed to advance o->pos to skip what we have already processed.
*
* This wrapper makes it all more readable, and takes care of all
* the fairly complex unpack_trees() semantic requirements, including
@@ -416,11 +423,7 @@ static int oneway_diff(struct cache_entry **src, struct unpack_trees_options *o)
{
struct cache_entry *idx = src[0];
struct cache_entry *tree = src[1];
- struct oneway_unpack_data *cbdata = o->unpack_data;
- struct rev_info *revs = cbdata->revs;
-
- if (idx && ce_stage(idx))
- skip_same_name(idx, o);
+ struct rev_info *revs = o->unpack_data;
/*
* Unpack-trees generates a DF/conflict entry if
@@ -431,8 +434,13 @@ static int oneway_diff(struct cache_entry **src, struct unpack_trees_options *o)
if (tree == o->df_conflict_entry)
tree = NULL;
- if (ce_path_match(idx ? idx : tree, revs->prune_data))
+ if (ce_path_match(idx ? idx : tree, &revs->prune_data)) {
do_oneway_diff(o, idx, tree);
+ if (diff_can_quit_early(&revs->diffopt)) {
+ o->exiting_early = 1;
+ return -1;
+ }
+ }
return 0;
}
const char *tree_name;
struct unpack_trees_options opts;
struct tree_desc t;
- struct oneway_unpack_data unpack_cb;
-
- mark_merge_entries();
ent = revs->pending.objects[0].item;
tree_name = revs->pending.objects[0].name;
if (!tree)
return error("bad tree object %s", tree_name);
- unpack_cb.revs = revs;
- unpack_cb.symcache[0] = '\0';
memset(&opts, 0, sizeof(opts));
opts.head_idx = 1;
opts.index_only = cached;
+ opts.diff_index_cached = (cached &&
+ !DIFF_OPT_TST(&revs->diffopt, FIND_COPIES_HARDER));
opts.merge = 1;
opts.fn = oneway_diff;
- opts.unpack_data = &unpack_cb;
+ opts.unpack_data = revs;
opts.src_index = &the_index;
opts.dst_index = NULL;
if (unpack_trees(1, &t, &opts))
exit(128);
+ diff_set_mnemonic_prefix(&revs->diffopt, "c/", cached ? "i/" : "w/");
+ diffcore_fix_diff_index(&revs->diffopt);
diffcore_std(&revs->diffopt);
diff_flush(&revs->diffopt);
return 0;
struct cache_entry *last = NULL;
struct unpack_trees_options opts;
struct tree_desc t;
- struct oneway_unpack_data unpack_cb;
/*
* This is used by git-blame to run diff-cache internally;
active_nr = dst - active_cache;
init_revisions(&revs, NULL);
- revs.prune_data = opt->paths;
+ init_pathspec(&revs.prune_data, opt->pathspec.raw);
tree = parse_tree_indirect(tree_sha1);
if (!tree)
die("bad tree object %s", sha1_to_hex(tree_sha1));
- unpack_cb.revs = &revs;
- unpack_cb.symcache[0] = '\0';
memset(&opts, 0, sizeof(opts));
opts.head_idx = 1;
opts.index_only = 1;
+ opts.diff_index_cached = !DIFF_OPT_TST(opt, FIND_COPIES_HARDER);
opts.merge = 1;
opts.fn = oneway_diff;
- opts.unpack_data = &unpack_cb;
+ opts.unpack_data = &revs;
opts.src_index = &the_index;
opts.dst_index = &the_index;
exit(128);
return 0;
}
+
+int index_differs_from(const char *def, int diff_flags)
+{
+ struct rev_info rev;
+ struct setup_revision_opt opt;
+
+ init_revisions(&rev, NULL);
+ memset(&opt, 0, sizeof(opt));
+ opt.def = def;
+ setup_revisions(0, NULL, &rev, &opt);
+ DIFF_OPT_SET(&rev.diffopt, QUICK);
+ DIFF_OPT_SET(&rev.diffopt, EXIT_WITH_STATUS);
+ rev.diffopt.flags |= diff_flags;
+ run_diff_index(&rev, 1);
+ if (rev.pending.alloc)
+ free(rev.pending.objects);
+ return (DIFF_OPT_TST(&rev.diffopt, HAS_CHANGES) != 0);
+}