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-rw-r--r--unpack-trees.c154
1 files changed, 98 insertions, 56 deletions
diff --git a/unpack-trees.c b/unpack-trees.c
index 56c1ffb..3e448d8 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -85,6 +85,7 @@ static int unpack_trees_rec(struct tree_entry_list **posns, int len,
int any_dirs = 0;
char *cache_name;
int ce_stage;
+ int skip_entry = 0;
/* Find the first name in the input. */
@@ -122,13 +123,13 @@ static int unpack_trees_rec(struct tree_entry_list **posns, int len,
#if DBRT_DEBUG > 1
if (first)
- printf("index %s\n", first);
+ fprintf(stderr, "index %s\n", first);
#endif
for (i = 0; i < len; i++) {
if (!posns[i] || posns[i] == df_conflict_list)
continue;
#if DBRT_DEBUG > 1
- printf("%d %s\n", i + 1, posns[i]->name);
+ fprintf(stderr, "%d %s\n", i + 1, posns[i]->name);
#endif
if (!first || entcmp(first, firstdir,
posns[i]->name,
@@ -153,6 +154,8 @@ static int unpack_trees_rec(struct tree_entry_list **posns, int len,
any_files = 1;
src[0] = active_cache[o->pos];
remove = o->pos;
+ if (o->skip_unmerged && ce_stage(src[0]))
+ skip_entry = 1;
}
for (i = 0; i < len; i++) {
@@ -181,6 +184,12 @@ static int unpack_trees_rec(struct tree_entry_list **posns, int len,
continue;
}
+ if (skip_entry) {
+ subposns[i] = df_conflict_list;
+ posns[i] = posns[i]->next;
+ continue;
+ }
+
if (!o->merge)
ce_stage = 0;
else if (i + 1 < o->head_idx)
@@ -205,23 +214,31 @@ static int unpack_trees_rec(struct tree_entry_list **posns, int len,
posns[i] = posns[i]->next;
}
if (any_files) {
- if (o->merge) {
+ if (skip_entry) {
+ o->pos++;
+ while (o->pos < active_nr &&
+ !strcmp(active_cache[o->pos]->name,
+ src[0]->name))
+ o->pos++;
+ } else if (o->merge) {
int ret;
#if DBRT_DEBUG > 1
- printf("%s:\n", first);
+ fprintf(stderr, "%s:\n", first);
for (i = 0; i < src_size; i++) {
- printf(" %d ", i);
+ fprintf(stderr, " %d ", i);
if (src[i])
- printf("%s\n", sha1_to_hex(src[i]->sha1));
+ fprintf(stderr, "%06x %s\n", src[i]->ce_mode, sha1_to_hex(src[i]->sha1));
else
- printf("\n");
+ fprintf(stderr, "\n");
}
#endif
ret = o->fn(src, o, remove);
+ if (ret < 0)
+ return ret;
#if DBRT_DEBUG > 1
- printf("Added %d entries\n", ret);
+ fprintf(stderr, "Added %d entries\n", ret);
#endif
o->pos += ret;
} else {
@@ -286,16 +303,16 @@ static void unlink_entry(char *name, char *last_symlink)
}
static struct checkout state;
-static void check_updates(struct cache_entry **src, int nr,
- struct unpack_trees_options *o)
+static void check_updates(struct unpack_trees_options *o)
{
unsigned cnt = 0, total = 0;
struct progress *progress = NULL;
char last_symlink[PATH_MAX];
+ int i;
if (o->update && o->verbose_update) {
- for (total = cnt = 0; cnt < nr; cnt++) {
- struct cache_entry *ce = src[cnt];
+ for (total = cnt = 0; cnt < active_nr; cnt++) {
+ struct cache_entry *ce = active_cache[cnt];
if (ce->ce_flags & (CE_UPDATE | CE_REMOVE))
total++;
}
@@ -306,14 +323,16 @@ static void check_updates(struct cache_entry **src, int nr,
}
*last_symlink = '\0';
- while (nr--) {
- struct cache_entry *ce = *src++;
+ for (i = 0; i < active_nr; i++) {
+ struct cache_entry *ce = active_cache[i];
if (ce->ce_flags & (CE_UPDATE | CE_REMOVE))
display_progress(progress, ++cnt);
if (ce->ce_flags & CE_REMOVE) {
if (o->update)
unlink_entry(ce->name, last_symlink);
+ remove_cache_entry_at(i);
+ i--;
continue;
}
if (ce->ce_flags & CE_UPDATE) {
@@ -354,23 +373,34 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options
posns[i] = create_tree_entry_list(t+i);
if (unpack_trees_rec(posns, len, o->prefix ? o->prefix : "",
- o, &df_conflict_list))
+ o, &df_conflict_list)) {
+ if (o->gently) {
+ discard_cache();
+ read_cache();
+ }
return -1;
+ }
}
- if (o->trivial_merges_only && o->nontrivial_merge)
- die("Merge requires file-level merging");
+ if (o->trivial_merges_only && o->nontrivial_merge) {
+ if (o->gently) {
+ discard_cache();
+ read_cache();
+ }
+ return o->gently ? -1 :
+ error("Merge requires file-level merging");
+ }
- check_updates(active_cache, active_nr, o);
+ check_updates(o);
return 0;
}
/* Here come the merge functions */
-static void reject_merge(struct cache_entry *ce)
+static int reject_merge(struct cache_entry *ce)
{
- die("Entry '%s' would be overwritten by merge. Cannot merge.",
- ce->name);
+ return error("Entry '%s' would be overwritten by merge. Cannot merge.",
+ ce->name);
}
static int same(struct cache_entry *a, struct cache_entry *b)
@@ -388,18 +418,18 @@ static int same(struct cache_entry *a, struct cache_entry *b)
* When a CE gets turned into an unmerged entry, we
* want it to be up-to-date
*/
-static void verify_uptodate(struct cache_entry *ce,
+static int verify_uptodate(struct cache_entry *ce,
struct unpack_trees_options *o)
{
struct stat st;
if (o->index_only || o->reset)
- return;
+ return 0;
if (!lstat(ce->name, &st)) {
unsigned changed = ce_match_stat(ce, &st, CE_MATCH_IGNORE_VALID);
if (!changed)
- return;
+ return 0;
/*
* NEEDSWORK: the current default policy is to allow
* submodule to be out of sync wrt the supermodule
@@ -408,12 +438,13 @@ static void verify_uptodate(struct cache_entry *ce,
* checked out.
*/
if (S_ISGITLINK(ce->ce_mode))
- return;
+ return 0;
errno = 0;
}
if (errno == ENOENT)
- return;
- die("Entry '%s' not uptodate. Cannot merge.", ce->name);
+ return 0;
+ return o->gently ? -1 :
+ error("Entry '%s' not uptodate. Cannot merge.", ce->name);
}
static void invalidate_ce_path(struct cache_entry *ce)
@@ -479,7 +510,8 @@ static int verify_clean_subdirectory(struct cache_entry *ce, const char *action,
* ce->name is an entry in the subdirectory.
*/
if (!ce_stage(ce)) {
- verify_uptodate(ce, o);
+ if (verify_uptodate(ce, o))
+ return -1;
ce->ce_flags |= CE_REMOVE;
}
cnt++;
@@ -498,8 +530,9 @@ static int verify_clean_subdirectory(struct cache_entry *ce, const char *action,
d.exclude_per_dir = o->dir->exclude_per_dir;
i = read_directory(&d, ce->name, pathbuf, namelen+1, NULL);
if (i)
- die("Updating '%s' would lose untracked files in it",
- ce->name);
+ return o->gently ? -1 :
+ error("Updating '%s' would lose untracked files in it",
+ ce->name);
free(pathbuf);
return cnt;
}
@@ -508,16 +541,16 @@ static int verify_clean_subdirectory(struct cache_entry *ce, const char *action,
* We do not want to remove or overwrite a working tree file that
* is not tracked, unless it is ignored.
*/
-static void verify_absent(struct cache_entry *ce, const char *action,
- struct unpack_trees_options *o)
+static int verify_absent(struct cache_entry *ce, const char *action,
+ struct unpack_trees_options *o)
{
struct stat st;
if (o->index_only || o->reset || !o->update)
- return;
+ return 0;
if (has_symlink_leading_path(ce->name, NULL))
- return;
+ return 0;
if (!lstat(ce->name, &st)) {
int cnt;
@@ -528,7 +561,7 @@ static void verify_absent(struct cache_entry *ce, const char *action,
* ce->name is explicitly excluded, so it is Ok to
* overwrite it.
*/
- return;
+ return 0;
if (S_ISDIR(st.st_mode)) {
/*
* We are checking out path "foo" and
@@ -557,7 +590,7 @@ static void verify_absent(struct cache_entry *ce, const char *action,
* deleted entries here.
*/
o->pos += cnt;
- return;
+ return 0;
}
/*
@@ -569,12 +602,14 @@ static void verify_absent(struct cache_entry *ce, const char *action,
if (0 <= cnt) {
struct cache_entry *ce = active_cache[cnt];
if (ce->ce_flags & CE_REMOVE)
- return;
+ return 0;
}
- die("Untracked working tree file '%s' "
- "would be %s by merge.", ce->name, action);
+ return o->gently ? -1 :
+ error("Untracked working tree file '%s' "
+ "would be %s by merge.", ce->name, action);
}
+ return 0;
}
static int merged_entry(struct cache_entry *merge, struct cache_entry *old,
@@ -592,12 +627,14 @@ static int merged_entry(struct cache_entry *merge, struct cache_entry *old,
if (same(old, merge)) {
copy_cache_entry(merge, old);
} else {
- verify_uptodate(old, o);
+ if (verify_uptodate(old, o))
+ return -1;
invalidate_ce_path(old);
}
}
else {
- verify_absent(merge, "overwritten", o);
+ if (verify_absent(merge, "overwritten", o))
+ return -1;
invalidate_ce_path(merge);
}
@@ -609,10 +646,12 @@ static int merged_entry(struct cache_entry *merge, struct cache_entry *old,
static int deleted_entry(struct cache_entry *ce, struct cache_entry *old,
struct unpack_trees_options *o)
{
- if (old)
- verify_uptodate(old, o);
- else
- verify_absent(ce, "removed", o);
+ if (old) {
+ if (verify_uptodate(old, o))
+ return -1;
+ } else
+ if (verify_absent(ce, "removed", o))
+ return -1;
ce->ce_flags |= CE_REMOVE;
add_cache_entry(ce, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE);
invalidate_ce_path(ce);
@@ -700,16 +739,15 @@ int threeway_merge(struct cache_entry **stages,
/* #14, #14ALT, #2ALT */
if (remote && !df_conflict_head && head_match && !remote_match) {
if (index && !same(index, remote) && !same(index, head))
- reject_merge(index);
+ return o->gently ? -1 : reject_merge(index);
return merged_entry(remote, index, o);
}
/*
* If we have an entry in the index cache, then we want to
* make sure that it matches head.
*/
- if (index && !same(index, head)) {
- reject_merge(index);
- }
+ if (index && !same(index, head))
+ return o->gently ? -1 : reject_merge(index);
if (head) {
/* #5ALT, #15 */
@@ -759,8 +797,10 @@ int threeway_merge(struct cache_entry **stages,
remove_entry(remove);
if (index)
return deleted_entry(index, index, o);
- else if (ce && !head_deleted)
- verify_absent(ce, "removed", o);
+ else if (ce && !head_deleted) {
+ if (verify_absent(ce, "removed", o))
+ return -1;
+ }
return 0;
}
/*
@@ -776,7 +816,8 @@ int threeway_merge(struct cache_entry **stages,
* conflict resolution files.
*/
if (index) {
- verify_uptodate(index, o);
+ if (verify_uptodate(index, o))
+ return -1;
}
remove_entry(remove);
@@ -856,11 +897,11 @@ int twoway_merge(struct cache_entry **src,
/* all other failures */
remove_entry(remove);
if (oldtree)
- reject_merge(oldtree);
+ return o->gently ? -1 : reject_merge(oldtree);
if (current)
- reject_merge(current);
+ return o->gently ? -1 : reject_merge(current);
if (newtree)
- reject_merge(newtree);
+ return o->gently ? -1 : reject_merge(newtree);
return -1;
}
}
@@ -887,7 +928,8 @@ int bind_merge(struct cache_entry **src,
return error("Cannot do a bind merge of %d trees\n",
o->merge_size);
if (a && old)
- die("Entry '%s' overlaps. Cannot bind.", a->name);
+ return o->gently ? -1 :
+ error("Entry '%s' overlaps. Cannot bind.", a->name);
if (!a)
return keep_entry(old, o);
else
generated by cgit v0.10.2-6-g49f6 at 2024-04-25 04:33:28 (GMT)