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authorJunio C Hamano <gitster@pobox.com>2018-11-13 13:37:26 (GMT)
committerJunio C Hamano <gitster@pobox.com>2018-11-13 13:37:26 (GMT)
commite146cc97be4c054c60d38e9f4edcdc33205bf563 (patch)
treeb36de8c572922ac1c0fda47c028cd7ccd8fd7a35 /builtin/fsck.c
parent11aa560de964e800aabce446d600ab0fb4c90c20 (diff)
parent14f74d59072c7bf0586b15165538373bed898f18 (diff)
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Merge branch 'nd/per-worktree-ref-iteration'
The code to traverse objects for reachability, used to decide what objects are unreferenced and expendable, have been taught to also consider per-worktree refs of other worktrees as starting points to prevent data loss. * nd/per-worktree-ref-iteration: git-worktree.txt: correct linkgit command name reflog expire: cover reflog from all worktrees fsck: check HEAD and reflog from other worktrees fsck: move fsck_head_link() to get_default_heads() to avoid some globals revision.c: better error reporting on ref from different worktrees revision.c: correct a parameter name refs: new ref types to make per-worktree refs visible to all worktrees Add a place for (not) sharing stuff between worktrees refs.c: indent with tabs, not spaces
Diffstat (limited to 'builtin/fsck.c')
-rw-r--r--builtin/fsck.c68
1 files changed, 47 insertions, 21 deletions
diff --git a/builtin/fsck.c b/builtin/fsck.c
index 06eb421..3c3e0f0 100644
--- a/builtin/fsck.c
+++ b/builtin/fsck.c
@@ -19,6 +19,7 @@
#include "packfile.h"
#include "object-store.h"
#include "run-command.h"
+#include "worktree.h"
#define REACHABLE 0x0001
#define SEEN 0x0002
@@ -36,8 +37,6 @@ static int check_strict;
static int keep_cache_objects;
static struct fsck_options fsck_walk_options = FSCK_OPTIONS_DEFAULT;
static struct fsck_options fsck_obj_options = FSCK_OPTIONS_DEFAULT;
-static struct object_id head_oid;
-static const char *head_points_at;
static int errors_found;
static int write_lost_and_found;
static int verbose;
@@ -446,7 +445,11 @@ static int fsck_handle_reflog_ent(struct object_id *ooid, struct object_id *noid
static int fsck_handle_reflog(const char *logname, const struct object_id *oid,
int flag, void *cb_data)
{
- for_each_reflog_ent(logname, fsck_handle_reflog_ent, (void *)logname);
+ struct strbuf refname = STRBUF_INIT;
+
+ strbuf_worktree_ref(cb_data, &refname, logname);
+ for_each_reflog_ent(refname.buf, fsck_handle_reflog_ent, refname.buf);
+ strbuf_release(&refname);
return 0;
}
@@ -484,13 +487,34 @@ static int fsck_handle_ref(const char *refname, const struct object_id *oid,
return 0;
}
+static int fsck_head_link(const char *head_ref_name,
+ const char **head_points_at,
+ struct object_id *head_oid);
+
static void get_default_heads(void)
{
- if (head_points_at && !is_null_oid(&head_oid))
- fsck_handle_ref("HEAD", &head_oid, 0, NULL);
+ struct worktree **worktrees, **p;
+ const char *head_points_at;
+ struct object_id head_oid;
+
for_each_rawref(fsck_handle_ref, NULL);
- if (include_reflogs)
- for_each_reflog(fsck_handle_reflog, NULL);
+
+ worktrees = get_worktrees(0);
+ for (p = worktrees; *p; p++) {
+ struct worktree *wt = *p;
+ struct strbuf ref = STRBUF_INIT;
+
+ strbuf_worktree_ref(wt, &ref, "HEAD");
+ fsck_head_link(ref.buf, &head_points_at, &head_oid);
+ if (head_points_at && !is_null_oid(&head_oid))
+ fsck_handle_ref(ref.buf, &head_oid, 0, NULL);
+ strbuf_release(&ref);
+
+ if (include_reflogs)
+ refs_for_each_reflog(get_worktree_ref_store(wt),
+ fsck_handle_reflog, wt);
+ }
+ free_worktrees(worktrees);
/*
* Not having any default heads isn't really fatal, but
@@ -579,33 +603,36 @@ static void fsck_object_dir(const char *path)
stop_progress(&progress);
}
-static int fsck_head_link(void)
+static int fsck_head_link(const char *head_ref_name,
+ const char **head_points_at,
+ struct object_id *head_oid)
{
int null_is_error = 0;
if (verbose)
- fprintf(stderr, "Checking HEAD link\n");
+ fprintf(stderr, "Checking %s link\n", head_ref_name);
- head_points_at = resolve_ref_unsafe("HEAD", 0, &head_oid, NULL);
- if (!head_points_at) {
+ *head_points_at = resolve_ref_unsafe(head_ref_name, 0, head_oid, NULL);
+ if (!*head_points_at) {
errors_found |= ERROR_REFS;
- return error("Invalid HEAD");
+ return error("Invalid %s", head_ref_name);
}
- if (!strcmp(head_points_at, "HEAD"))
+ if (!strcmp(*head_points_at, head_ref_name))
/* detached HEAD */
null_is_error = 1;
- else if (!starts_with(head_points_at, "refs/heads/")) {
+ else if (!starts_with(*head_points_at, "refs/heads/")) {
errors_found |= ERROR_REFS;
- return error("HEAD points to something strange (%s)",
- head_points_at);
+ return error("%s points to something strange (%s)",
+ head_ref_name, *head_points_at);
}
- if (is_null_oid(&head_oid)) {
+ if (is_null_oid(head_oid)) {
if (null_is_error) {
errors_found |= ERROR_REFS;
- return error("HEAD: detached HEAD points at nothing");
+ return error("%s: detached HEAD points at nothing",
+ head_ref_name);
}
- fprintf(stderr, "notice: HEAD points to an unborn branch (%s)\n",
- head_points_at + 11);
+ fprintf(stderr, "notice: %s points to an unborn branch (%s)\n",
+ head_ref_name, *head_points_at + 11);
}
return 0;
}
@@ -720,7 +747,6 @@ int cmd_fsck(int argc, const char **argv, const char *prefix)
git_config(fsck_config, NULL);
- fsck_head_link();
if (connectivity_only) {
for_each_loose_object(mark_loose_for_connectivity, NULL, 0);
for_each_packed_object(mark_packed_for_connectivity, NULL, 0);