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-rw-r--r--rerere.c103
1 files changed, 46 insertions, 57 deletions
diff --git a/rerere.c b/rerere.c
index d55aa8a01..d90057b76 100644
--- a/rerere.c
+++ b/rerere.c
@@ -1,4 +1,5 @@
#include "cache.h"
+#include "lockfile.h"
#include "string-list.h"
#include "rerere.h"
#include "xdiff-interface.h"
@@ -19,8 +20,6 @@ static int rerere_enabled = -1;
/* automatically update cleanly resolved paths to the index */
static int rerere_autoupdate;
-static char *merge_rr_path;
-
const char *rerere_path(const char *hex, const char *file)
{
return git_path("rr-cache/%s/%s", hex, file);
@@ -36,7 +35,7 @@ static void read_rr(struct string_list *rr)
{
unsigned char sha1[20];
char buf[PATH_MAX];
- FILE *in = fopen(merge_rr_path, "r");
+ FILE *in = fopen(git_path_merge_rr(), "r");
if (!in)
return;
while (fread(buf, 40, 1, in) == 1) {
@@ -207,11 +206,11 @@ static int handle_path(unsigned char *sha1, struct rerere_io *io, int marker_siz
strbuf_reset(&one);
strbuf_reset(&two);
} else if (hunk == RR_SIDE_1)
- strbuf_addstr(&one, buf.buf);
+ strbuf_addbuf(&one, &buf);
else if (hunk == RR_ORIGINAL)
; /* discard */
else if (hunk == RR_SIDE_2)
- strbuf_addstr(&two, buf.buf);
+ strbuf_addbuf(&two, &buf);
else
rerere_io_putstr(buf.buf, io);
continue;
@@ -410,6 +409,8 @@ static int find_conflict(struct string_list *conflict)
int rerere_remaining(struct string_list *merge_rr)
{
int i;
+ if (setup_rerere(merge_rr, RERERE_READONLY))
+ return 0;
if (read_cache() < 0)
return error("Could not read index");
@@ -476,28 +477,23 @@ out:
static struct lock_file index_lock;
-static int update_paths(struct string_list *update)
+static void update_paths(struct string_list *update)
{
int i;
- int fd = hold_locked_index(&index_lock, 0);
- int status = 0;
- if (fd < 0)
- return -1;
+ hold_locked_index(&index_lock, 1);
for (i = 0; i < update->nr; i++) {
struct string_list_item *item = &update->items[i];
- if (add_file_to_cache(item->string, ADD_CACHE_IGNORE_ERRORS))
- status = -1;
+ if (add_file_to_cache(item->string, 0))
+ exit(128);
}
- if (!status && active_cache_changed) {
- if (write_cache(fd, active_cache, active_nr) ||
- commit_locked_index(&index_lock))
+ if (active_cache_changed) {
+ if (write_locked_index(&the_index, &index_lock, COMMIT_LOCK))
die("Unable to write new index file");
- } else if (fd >= 0)
+ } else
rollback_lock_file(&index_lock);
- return status;
}
static int do_plain_rerere(struct string_list *rr, int fd)
@@ -574,32 +570,28 @@ static int do_plain_rerere(struct string_list *rr, int fd)
return write_rr(rr, fd);
}
-static int git_rerere_config(const char *var, const char *value, void *cb)
+static void git_rerere_config(void)
{
- if (!strcmp(var, "rerere.enabled"))
- rerere_enabled = git_config_bool(var, value);
- else if (!strcmp(var, "rerere.autoupdate"))
- rerere_autoupdate = git_config_bool(var, value);
- else
- return git_default_config(var, value, cb);
- return 0;
+ git_config_get_bool("rerere.enabled", &rerere_enabled);
+ git_config_get_bool("rerere.autoupdate", &rerere_autoupdate);
+ git_config(git_default_config, NULL);
}
+static GIT_PATH_FUNC(git_path_rr_cache, "rr-cache")
+
static int is_rerere_enabled(void)
{
- const char *rr_cache;
int rr_cache_exists;
if (!rerere_enabled)
return 0;
- rr_cache = git_path("rr-cache");
- rr_cache_exists = is_directory(rr_cache);
+ rr_cache_exists = is_directory(git_path_rr_cache());
if (rerere_enabled < 0)
return rr_cache_exists;
- if (!rr_cache_exists && mkdir_in_gitdir(rr_cache))
- die("Could not create directory %s", rr_cache);
+ if (!rr_cache_exists && mkdir_in_gitdir(git_path_rr_cache()))
+ die("Could not create directory %s", git_path_rr_cache());
return 1;
}
@@ -607,15 +599,17 @@ int setup_rerere(struct string_list *merge_rr, int flags)
{
int fd;
- git_config(git_rerere_config, NULL);
+ git_rerere_config();
if (!is_rerere_enabled())
return -1;
if (flags & (RERERE_AUTOUPDATE|RERERE_NOAUTOUPDATE))
rerere_autoupdate = !!(flags & RERERE_AUTOUPDATE);
- merge_rr_path = git_pathdup("MERGE_RR");
- fd = hold_lock_file_for_update(&write_lock, merge_rr_path,
- LOCK_DIE_ON_ERROR);
+ if (flags & RERERE_READONLY)
+ fd = 0;
+ else
+ fd = hold_lock_file_for_update(&write_lock, git_path_merge_rr(),
+ LOCK_DIE_ON_ERROR);
read_rr(merge_rr);
return fd;
}
@@ -667,6 +661,8 @@ int rerere_forget(struct pathspec *pathspec)
return error("Could not read index");
fd = setup_rerere(&merge_rr, RERERE_NOAUTOUPDATE);
+ if (fd < 0)
+ return 0;
unmerge_cache(pathspec);
find_conflict(&conflict);
@@ -700,24 +696,6 @@ static void unlink_rr_item(const char *name)
rmdir(git_path("rr-cache/%s", name));
}
-struct rerere_gc_config_cb {
- int cutoff_noresolve;
- int cutoff_resolve;
-};
-
-static int git_rerere_gc_config(const char *var, const char *value, void *cb)
-{
- struct rerere_gc_config_cb *cf = cb;
-
- if (!strcmp(var, "gc.rerereresolved"))
- cf->cutoff_resolve = git_config_int(var, value);
- else if (!strcmp(var, "gc.rerereunresolved"))
- cf->cutoff_noresolve = git_config_int(var, value);
- else
- return git_default_config(var, value, cb);
- return 0;
-}
-
void rerere_gc(struct string_list *rr)
{
struct string_list to_remove = STRING_LIST_INIT_DUP;
@@ -725,9 +703,15 @@ void rerere_gc(struct string_list *rr)
struct dirent *e;
int i, cutoff;
time_t now = time(NULL), then;
- struct rerere_gc_config_cb cf = { 15, 60 };
+ int cutoff_noresolve = 15;
+ int cutoff_resolve = 60;
+
+ if (setup_rerere(rr, 0) < 0)
+ return;
- git_config(git_rerere_gc_config, &cf);
+ git_config_get_int("gc.rerereresolved", &cutoff_resolve);
+ git_config_get_int("gc.rerereunresolved", &cutoff_noresolve);
+ git_config(git_default_config, NULL);
dir = opendir(git_path("rr-cache"));
if (!dir)
die_errno("unable to open rr-cache directory");
@@ -737,12 +721,12 @@ void rerere_gc(struct string_list *rr)
then = rerere_last_used_at(e->d_name);
if (then) {
- cutoff = cf.cutoff_resolve;
+ cutoff = cutoff_resolve;
} else {
then = rerere_created_at(e->d_name);
if (!then)
continue;
- cutoff = cf.cutoff_noresolve;
+ cutoff = cutoff_noresolve;
}
if (then < now - cutoff * 86400)
string_list_append(&to_remove, e->d_name);
@@ -751,16 +735,21 @@ void rerere_gc(struct string_list *rr)
for (i = 0; i < to_remove.nr; i++)
unlink_rr_item(to_remove.items[i].string);
string_list_clear(&to_remove, 0);
+ rollback_lock_file(&write_lock);
}
void rerere_clear(struct string_list *merge_rr)
{
int i;
+ if (setup_rerere(merge_rr, 0) < 0)
+ return;
+
for (i = 0; i < merge_rr->nr; i++) {
const char *name = (const char *)merge_rr->items[i].util;
if (!has_rerere_resolution(name))
unlink_rr_item(name);
}
- unlink_or_warn(git_path("MERGE_RR"));
+ unlink_or_warn(git_path_merge_rr());
+ rollback_lock_file(&write_lock);
}
generated by cgit v1.2.1 (git 2.18.0) at 2024-07-20 03:35:23 +0000