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-rw-r--r--unpack-trees.c166
1 files changed, 94 insertions, 72 deletions
diff --git a/unpack-trees.c b/unpack-trees.c
index ede4299..b27f2a6 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -116,14 +116,20 @@ static void do_add_entry(struct unpack_trees_options *o, struct cache_entry *ce,
ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE);
}
-static void add_entry(struct unpack_trees_options *o, struct cache_entry *ce,
- unsigned int set, unsigned int clear)
+static struct cache_entry *dup_entry(const struct cache_entry *ce)
{
unsigned int size = ce_size(ce);
struct cache_entry *new = xmalloc(size);
memcpy(new, ce, size);
- do_add_entry(o, new, set, clear);
+ return new;
+}
+
+static void add_entry(struct unpack_trees_options *o,
+ const struct cache_entry *ce,
+ unsigned int set, unsigned int clear)
+{
+ do_add_entry(o, dup_entry(ce), set, clear);
}
/*
@@ -235,8 +241,11 @@ static int check_updates(struct unpack_trees_options *o)
return errs != 0;
}
-static int verify_uptodate_sparse(struct cache_entry *ce, struct unpack_trees_options *o);
-static int verify_absent_sparse(struct cache_entry *ce, enum unpack_trees_error_types, struct unpack_trees_options *o);
+static int verify_uptodate_sparse(const struct cache_entry *ce,
+ struct unpack_trees_options *o);
+static int verify_absent_sparse(const struct cache_entry *ce,
+ enum unpack_trees_error_types,
+ struct unpack_trees_options *o);
static int apply_sparse_checkout(struct cache_entry *ce, struct unpack_trees_options *o)
{
@@ -291,7 +300,8 @@ static int apply_sparse_checkout(struct cache_entry *ce, struct unpack_trees_opt
return 0;
}
-static inline int call_unpack_fn(struct cache_entry **src, struct unpack_trees_options *o)
+static inline int call_unpack_fn(const struct cache_entry * const *src,
+ struct unpack_trees_options *o)
{
int ret = o->fn(src, o);
if (ret > 0)
@@ -320,7 +330,7 @@ static void mark_all_ce_unused(struct index_state *index)
index->cache[i]->ce_flags &= ~(CE_UNPACKED | CE_ADDED | CE_NEW_SKIP_WORKTREE);
}
-static int locate_in_src_index(struct cache_entry *ce,
+static int locate_in_src_index(const struct cache_entry *ce,
struct unpack_trees_options *o)
{
struct index_state *index = o->src_index;
@@ -388,7 +398,7 @@ static void add_same_unmerged(struct cache_entry *ce,
static int unpack_index_entry(struct cache_entry *ce,
struct unpack_trees_options *o)
{
- struct cache_entry *src[MAX_UNPACK_TREES + 1] = { NULL, };
+ const struct cache_entry *src[MAX_UNPACK_TREES + 1] = { NULL, };
int ret;
src[0] = ce;
@@ -454,7 +464,7 @@ static int traverse_trees_recursive(int n, unsigned long dirmask,
newinfo.pathspec = info->pathspec;
newinfo.name = *p;
newinfo.pathlen += tree_entry_len(p) + 1;
- newinfo.conflicts |= df_conflicts;
+ newinfo.df_conflicts |= df_conflicts;
for (i = 0; i < n; i++, dirmask >>= 1) {
const unsigned char *sha1 = NULL;
@@ -555,17 +565,12 @@ static int unpack_nondirectories(int n, unsigned long mask,
{
int i;
struct unpack_trees_options *o = info->data;
- unsigned long conflicts;
+ unsigned long conflicts = info->df_conflicts | dirmask;
/* Do we have *only* directories? Nothing to do */
if (mask == dirmask && !src[0])
return 0;
- conflicts = info->conflicts;
- if (o->merge)
- conflicts >>= 1;
- conflicts |= dirmask;
-
/*
* Ok, we've filled in up to any potential index entry in src[0],
* now do the rest.
@@ -590,8 +595,16 @@ static int unpack_nondirectories(int n, unsigned long mask,
src[i + o->merge] = create_ce_entry(info, names + i, stage);
}
- if (o->merge)
- return call_unpack_fn(src, o);
+ if (o->merge) {
+ int rc = call_unpack_fn((const struct cache_entry * const *)src,
+ o);
+ for (i = 0; i < n; i++) {
+ struct cache_entry *ce = src[i + o->merge];
+ if (ce != o->df_conflict_entry)
+ free(ce);
+ }
+ return rc;
+ }
for (i = 0; i < n; i++)
if (src[i] && src[i] != o->df_conflict_entry)
@@ -789,13 +802,6 @@ static int unpack_callback(int n, unsigned long mask, unsigned long dirmask, str
/* Now handle any directories.. */
if (dirmask) {
- unsigned long conflicts = mask & ~dirmask;
- if (o->merge) {
- conflicts <<= 1;
- if (src[0])
- conflicts |= 1;
- }
-
/* special case: "diff-index --cached" looking at a tree */
if (o->diff_index_cached &&
n == 1 && dirmask == 1 && S_ISDIR(names->mode)) {
@@ -814,7 +820,7 @@ static int unpack_callback(int n, unsigned long mask, unsigned long dirmask, str
}
}
- if (traverse_trees_recursive(n, dirmask, conflicts,
+ if (traverse_trees_recursive(n, dirmask, mask & ~dirmask,
names, info) < 0)
return -1;
return mask;
@@ -995,7 +1001,9 @@ static void mark_new_skip_worktree(struct exclude_list *el,
select_flag, skip_wt_flag, el);
}
-static int verify_absent(struct cache_entry *, enum unpack_trees_error_types, struct unpack_trees_options *);
+static int verify_absent(const struct cache_entry *,
+ enum unpack_trees_error_types,
+ struct unpack_trees_options *);
/*
* N-way merge "len" trees. Returns 0 on success, -1 on failure to manipulate the
* resulting index, -2 on failure to reflect the changes to the work tree.
@@ -1165,12 +1173,13 @@ return_failed:
/* Here come the merge functions */
-static int reject_merge(struct cache_entry *ce, struct unpack_trees_options *o)
+static int reject_merge(const struct cache_entry *ce,
+ struct unpack_trees_options *o)
{
return add_rejected_path(o, ERROR_WOULD_OVERWRITE, ce->name);
}
-static int same(struct cache_entry *a, struct cache_entry *b)
+static int same(const struct cache_entry *a, const struct cache_entry *b)
{
if (!!a != !!b)
return 0;
@@ -1187,9 +1196,9 @@ 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 int verify_uptodate_1(struct cache_entry *ce,
- struct unpack_trees_options *o,
- enum unpack_trees_error_types error_type)
+static int verify_uptodate_1(const struct cache_entry *ce,
+ struct unpack_trees_options *o,
+ enum unpack_trees_error_types error_type)
{
struct stat st;
@@ -1228,7 +1237,7 @@ static int verify_uptodate_1(struct cache_entry *ce,
add_rejected_path(o, error_type, ce->name);
}
-static int verify_uptodate(struct cache_entry *ce,
+static int verify_uptodate(const struct cache_entry *ce,
struct unpack_trees_options *o)
{
if (!o->skip_sparse_checkout && (ce->ce_flags & CE_NEW_SKIP_WORKTREE))
@@ -1236,13 +1245,14 @@ static int verify_uptodate(struct cache_entry *ce,
return verify_uptodate_1(ce, o, ERROR_NOT_UPTODATE_FILE);
}
-static int verify_uptodate_sparse(struct cache_entry *ce,
+static int verify_uptodate_sparse(const struct cache_entry *ce,
struct unpack_trees_options *o)
{
return verify_uptodate_1(ce, o, ERROR_SPARSE_NOT_UPTODATE_FILE);
}
-static void invalidate_ce_path(struct cache_entry *ce, struct unpack_trees_options *o)
+static void invalidate_ce_path(const struct cache_entry *ce,
+ struct unpack_trees_options *o)
{
if (ce)
cache_tree_invalidate_path(o->src_index->cache_tree, ce->name);
@@ -1255,16 +1265,16 @@ static void invalidate_ce_path(struct cache_entry *ce, struct unpack_trees_optio
* Currently, git does not checkout subprojects during a superproject
* checkout, so it is not going to overwrite anything.
*/
-static int verify_clean_submodule(struct cache_entry *ce,
- enum unpack_trees_error_types error_type,
- struct unpack_trees_options *o)
+static int verify_clean_submodule(const struct cache_entry *ce,
+ enum unpack_trees_error_types error_type,
+ struct unpack_trees_options *o)
{
return 0;
}
-static int verify_clean_subdirectory(struct cache_entry *ce,
- enum unpack_trees_error_types error_type,
- struct unpack_trees_options *o)
+static int verify_clean_subdirectory(const struct cache_entry *ce,
+ enum unpack_trees_error_types error_type,
+ struct unpack_trees_options *o)
{
/*
* we are about to extract "ce->name"; we would not want to lose
@@ -1350,7 +1360,7 @@ static int icase_exists(struct unpack_trees_options *o, const char *name, int le
}
static int check_ok_to_remove(const char *name, int len, int dtype,
- struct cache_entry *ce, struct stat *st,
+ const struct cache_entry *ce, struct stat *st,
enum unpack_trees_error_types error_type,
struct unpack_trees_options *o)
{
@@ -1405,9 +1415,9 @@ static int check_ok_to_remove(const char *name, int len, int dtype,
* We do not want to remove or overwrite a working tree file that
* is not tracked, unless it is ignored.
*/
-static int verify_absent_1(struct cache_entry *ce,
- enum unpack_trees_error_types error_type,
- struct unpack_trees_options *o)
+static int verify_absent_1(const struct cache_entry *ce,
+ enum unpack_trees_error_types error_type,
+ struct unpack_trees_options *o)
{
int len;
struct stat st;
@@ -1440,7 +1450,7 @@ static int verify_absent_1(struct cache_entry *ce,
}
}
-static int verify_absent(struct cache_entry *ce,
+static int verify_absent(const struct cache_entry *ce,
enum unpack_trees_error_types error_type,
struct unpack_trees_options *o)
{
@@ -1449,9 +1459,9 @@ static int verify_absent(struct cache_entry *ce,
return verify_absent_1(ce, error_type, o);
}
-static int verify_absent_sparse(struct cache_entry *ce,
- enum unpack_trees_error_types error_type,
- struct unpack_trees_options *o)
+static int verify_absent_sparse(const struct cache_entry *ce,
+ enum unpack_trees_error_types error_type,
+ struct unpack_trees_options *o)
{
enum unpack_trees_error_types orphaned_error = error_type;
if (orphaned_error == ERROR_WOULD_LOSE_UNTRACKED_OVERWRITTEN)
@@ -1460,10 +1470,12 @@ static int verify_absent_sparse(struct cache_entry *ce,
return verify_absent_1(ce, orphaned_error, o);
}
-static int merged_entry(struct cache_entry *merge, struct cache_entry *old,
- struct unpack_trees_options *o)
+static int merged_entry(const struct cache_entry *ce,
+ const struct cache_entry *old,
+ struct unpack_trees_options *o)
{
int update = CE_UPDATE;
+ struct cache_entry *merge = dup_entry(ce);
if (!old) {
/*
@@ -1481,8 +1493,11 @@ static int merged_entry(struct cache_entry *merge, struct cache_entry *old,
update |= CE_ADDED;
merge->ce_flags |= CE_NEW_SKIP_WORKTREE;
- if (verify_absent(merge, ERROR_WOULD_LOSE_UNTRACKED_OVERWRITTEN, o))
+ if (verify_absent(merge,
+ ERROR_WOULD_LOSE_UNTRACKED_OVERWRITTEN, o)) {
+ free(merge);
return -1;
+ }
invalidate_ce_path(merge, o);
} else if (!(old->ce_flags & CE_CONFLICTED)) {
/*
@@ -1496,8 +1511,10 @@ static int merged_entry(struct cache_entry *merge, struct cache_entry *old,
copy_cache_entry(merge, old);
update = 0;
} else {
- if (verify_uptodate(old, o))
+ if (verify_uptodate(old, o)) {
+ free(merge);
return -1;
+ }
/* Migrate old flags over */
update |= old->ce_flags & (CE_SKIP_WORKTREE | CE_NEW_SKIP_WORKTREE);
invalidate_ce_path(old, o);
@@ -1510,12 +1527,13 @@ static int merged_entry(struct cache_entry *merge, struct cache_entry *old,
invalidate_ce_path(old, o);
}
- add_entry(o, merge, update, CE_STAGEMASK);
+ do_add_entry(o, merge, update, CE_STAGEMASK);
return 1;
}
-static int deleted_entry(struct cache_entry *ce, struct cache_entry *old,
- struct unpack_trees_options *o)
+static int deleted_entry(const struct cache_entry *ce,
+ const struct cache_entry *old,
+ struct unpack_trees_options *o)
{
/* Did it exist in the index? */
if (!old) {
@@ -1530,7 +1548,8 @@ static int deleted_entry(struct cache_entry *ce, struct cache_entry *old,
return 1;
}
-static int keep_entry(struct cache_entry *ce, struct unpack_trees_options *o)
+static int keep_entry(const struct cache_entry *ce,
+ struct unpack_trees_options *o)
{
add_entry(o, ce, 0, 0);
return 1;
@@ -1552,11 +1571,12 @@ static void show_stage_entry(FILE *o,
}
#endif
-int threeway_merge(struct cache_entry **stages, struct unpack_trees_options *o)
+int threeway_merge(const struct cache_entry * const *stages,
+ struct unpack_trees_options *o)
{
- struct cache_entry *index;
- struct cache_entry *head;
- struct cache_entry *remote = stages[o->head_idx + 1];
+ const struct cache_entry *index;
+ const struct cache_entry *head;
+ const struct cache_entry *remote = stages[o->head_idx + 1];
int count;
int head_match = 0;
int remote_match = 0;
@@ -1641,7 +1661,7 @@ int threeway_merge(struct cache_entry **stages, struct unpack_trees_options *o)
if (o->aggressive) {
int head_deleted = !head;
int remote_deleted = !remote;
- struct cache_entry *ce = NULL;
+ const struct cache_entry *ce = NULL;
if (index)
ce = index;
@@ -1724,11 +1744,12 @@ int threeway_merge(struct cache_entry **stages, struct unpack_trees_options *o)
* "carry forward" rule, please see <Documentation/git-read-tree.txt>.
*
*/
-int twoway_merge(struct cache_entry **src, struct unpack_trees_options *o)
+int twoway_merge(const struct cache_entry * const *src,
+ struct unpack_trees_options *o)
{
- struct cache_entry *current = src[0];
- struct cache_entry *oldtree = src[1];
- struct cache_entry *newtree = src[2];
+ const struct cache_entry *current = src[0];
+ const struct cache_entry *oldtree = src[1];
+ const struct cache_entry *newtree = src[2];
if (o->merge_size != 2)
return error("Cannot do a twoway merge of %d trees",
@@ -1790,11 +1811,11 @@ int twoway_merge(struct cache_entry **src, struct unpack_trees_options *o)
* Keep the index entries at stage0, collapse stage1 but make sure
* stage0 does not have anything there.
*/
-int bind_merge(struct cache_entry **src,
- struct unpack_trees_options *o)
+int bind_merge(const struct cache_entry * const *src,
+ struct unpack_trees_options *o)
{
- struct cache_entry *old = src[0];
- struct cache_entry *a = src[1];
+ const struct cache_entry *old = src[0];
+ const struct cache_entry *a = src[1];
if (o->merge_size != 1)
return error("Cannot do a bind merge of %d trees",
@@ -1814,10 +1835,11 @@ int bind_merge(struct cache_entry **src,
* The rule is:
* - take the stat information from stage0, take the data from stage1
*/
-int oneway_merge(struct cache_entry **src, struct unpack_trees_options *o)
+int oneway_merge(const struct cache_entry * const *src,
+ struct unpack_trees_options *o)
{
- struct cache_entry *old = src[0];
- struct cache_entry *a = src[1];
+ const struct cache_entry *old = src[0];
+ const struct cache_entry *a = src[1];
if (o->merge_size != 1)
return error("Cannot do a oneway merge of %d trees",
generated by cgit v0.10.2-6-g49f6 at 2024-04-27 10:10:24 (GMT)