When 'git remote prune' was used to delete many refs in a repository
with many refs, a lot of time was spent checking for (now) dangling
symbolic refs pointing to the deleted ref, since warn_dangling_symref()
was once per deleted ref to check all other refs in the repository.
Avoid this using the new warn_dangling_symrefs() function which
makes one pass over all refs and checks for all the deleted refs in
one go, after they have all been deleted.
Signed-off-by: Jens Lindström <j...@opera.com>
---
builtin/remote.c | 6 +++++-
refs.c | 19 ++++++++++++++++++-
refs.h | 1 +
3 files changed, 24 insertions(+), 2 deletions(-)
diff --git a/builtin/remote.c b/builtin/remote.c
index ce60a30..5e4a8dd 100644
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -1306,6 +1306,7 @@ static int prune_remote(const char *remote, int dry_run)
{
int result = 0, i;
struct ref_states states;
+ struct string_list delete_refs_list = STRING_LIST_INIT_NODUP;
const char **delete_refs;
const char *dangling_msg = dry_run
? _(" %s will become dangling!")
@@ -1327,6 +1328,7 @@ static int prune_remote(const char *remote, int dry_run)
const char *refname = states.stale.items[i].util;
delete_refs[i] = refname;
+ string_list_insert(&delete_refs_list, refname);
if (!dry_run)
result |= delete_ref(refname, NULL, REF_DEFERREPACK);
@@ -1337,9 +1339,11 @@ static int prune_remote(const char *remote, int dry_run)
else
printf_ln(_(" * [pruned] %s"),
abbrev_ref(refname, "refs/remotes/"));
- warn_dangling_symref(stdout, dangling_msg, refname);
}
+ warn_dangling_symrefs(stdout, dangling_msg, &delete_refs_list);
+ string_list_clear(&delete_refs_list, 0);
+
if (states.stale.nr) {
if (!dry_run)
result |= repack_without_refs(delete_refs,
states.stale.nr);
diff --git a/refs.c b/refs.c
index 3b62aca..fdd8b74 100644
--- a/refs.c
+++ b/refs.c
@@ -1611,6 +1611,7 @@ int peel_ref(const char *refname, unsigned char *sha1)
struct warn_if_dangling_data {
FILE *fp;
const char *refname;
+ const struct string_list *refnames;
const char *msg_fmt;
};
@@ -1625,8 +1626,12 @@ static int warn_if_dangling_symref(const char *refname,
const unsigned char *sha
return 0;
resolves_to = resolve_ref_unsafe(refname, junk, 0, NULL);
- if (!resolves_to || strcmp(resolves_to, d->refname))
+ if (!resolves_to
+ || (d->refname
+ ? strcmp(resolves_to, d->refname)
+ : !string_list_has_string(d->refnames, resolves_to))) {
return 0;
+ }
fprintf(d->fp, d->msg_fmt, refname);
fputc('\n', d->fp);
@@ -1639,6 +1644,18 @@ void warn_dangling_symref(FILE *fp, const char *msg_fmt,
const char *refname)
data.fp = fp;
data.refname = refname;
+ data.refnames = NULL;
+ data.msg_fmt = msg_fmt;
+ for_each_rawref(warn_if_dangling_symref, &data);
+}
+
+void warn_dangling_symrefs(FILE *fp, const char *msg_fmt, const struct
string_list *refnames)
+{
+ struct warn_if_dangling_data data;
+
+ data.fp = fp;
+ data.refname = NULL;
+ data.refnames = refnames;
data.msg_fmt = msg_fmt;
for_each_rawref(warn_if_dangling_symref, &data);
}
diff --git a/refs.h b/refs.h
index 0db5584..cd4710d 100644
--- a/refs.h
+++ b/refs.h
@@ -89,7 +89,7 @@ static inline const char *has_glob_specials(const char
*pattern)
extern int for_each_rawref(each_ref_fn, void *);
extern void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char
*refname);
+extern void warn_dangling_symrefs(FILE *fp, const char *msg_fmt, const struct
string_list* refnames);
/*
* Lock the packed-refs file for writing. Flags is passed to
--
1.9.1
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