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-rw-r--r--rerere.c128
1 files changed, 99 insertions, 29 deletions
diff --git a/rerere.c b/rerere.c
index d1d3e75395..22dfc843da 100644
--- a/rerere.c
+++ b/rerere.c
@@ -7,6 +7,11 @@
#include "ll-merge.h"
#include "attr.h"
+#define RESOLVED 0
+#define PUNTED 1
+#define THREE_STAGED 2
+void *RERERE_RESOLVED = &RERERE_RESOLVED;
+
/* if rerere_enabled == -1, fall back to detection of .git/rr-cache */
static int rerere_enabled = -1;
@@ -46,7 +51,7 @@ static void read_rr(struct string_list *rr)
; /* do nothing */
if (i == sizeof(buf))
die("filename too long");
- string_list_insert(buf, rr)->util = name;
+ string_list_insert(rr, buf)->util = name;
}
fclose(in);
}
@@ -153,7 +158,7 @@ static int handle_path(unsigned char *sha1, struct rerere_io *io, int marker_siz
git_SHA_CTX ctx;
int hunk_no = 0;
enum {
- RR_CONTEXT = 0, RR_SIDE_1, RR_SIDE_2, RR_ORIGINAL,
+ RR_CONTEXT = 0, RR_SIDE_1, RR_SIDE_2, RR_ORIGINAL
} hunk = RR_CONTEXT;
struct strbuf one = STRBUF_INIT, two = STRBUF_INIT;
struct strbuf buf = STRBUF_INIT;
@@ -319,9 +324,13 @@ static int handle_cache(const char *path, unsigned char *sha1, const char *outpu
if (!mmfile[i].ptr && !mmfile[i].size)
mmfile[i].ptr = xstrdup("");
}
- ll_merge(&result, path, &mmfile[0],
+ /*
+ * NEEDSWORK: handle conflicts from merges with
+ * merge.renormalize set, too
+ */
+ ll_merge(&result, path, &mmfile[0], NULL,
&mmfile[1], "ours",
- &mmfile[2], "theirs", 0);
+ &mmfile[2], "theirs", NULL);
for (i = 0; i < 3; i++)
free(mmfile[i].ptr);
@@ -341,21 +350,74 @@ static int handle_cache(const char *path, unsigned char *sha1, const char *outpu
return hunk_no;
}
-static int find_conflict(struct string_list *conflict)
+static int check_one_conflict(int i, int *type)
{
- int i;
- if (read_cache() < 0)
- return error("Could not read index");
- for (i = 0; i+1 < active_nr; i++) {
+ struct cache_entry *e = active_cache[i];
+
+ if (!ce_stage(e)) {
+ *type = RESOLVED;
+ return i + 1;
+ }
+
+ *type = PUNTED;
+ if (ce_stage(e) == 1) {
+ if (active_nr <= ++i)
+ return i + 1;
+ }
+
+ /* Only handle regular files with both stages #2 and #3 */
+ if (i + 1 < active_nr) {
struct cache_entry *e2 = active_cache[i];
- struct cache_entry *e3 = active_cache[i+1];
+ struct cache_entry *e3 = active_cache[i + 1];
if (ce_stage(e2) == 2 &&
ce_stage(e3) == 3 &&
- ce_same_name(e2, e3) &&
+ ce_same_name(e, e3) &&
S_ISREG(e2->ce_mode) &&
- S_ISREG(e3->ce_mode)) {
- string_list_insert((const char *)e2->name, conflict);
- i++; /* skip over both #2 and #3 */
+ S_ISREG(e3->ce_mode))
+ *type = THREE_STAGED;
+ }
+
+ /* Skip the entries with the same name */
+ while (i < active_nr && ce_same_name(e, active_cache[i]))
+ i++;
+ return i;
+}
+
+static int find_conflict(struct string_list *conflict)
+{
+ int i;
+ if (read_cache() < 0)
+ return error("Could not read index");
+
+ for (i = 0; i < active_nr;) {
+ int conflict_type;
+ struct cache_entry *e = active_cache[i];
+ i = check_one_conflict(i, &conflict_type);
+ if (conflict_type == THREE_STAGED)
+ string_list_insert(conflict, (const char *)e->name);
+ }
+ return 0;
+}
+
+int rerere_remaining(struct string_list *merge_rr)
+{
+ int i;
+ if (read_cache() < 0)
+ return error("Could not read index");
+
+ for (i = 0; i < active_nr;) {
+ int conflict_type;
+ struct cache_entry *e = active_cache[i];
+ i = check_one_conflict(i, &conflict_type);
+ if (conflict_type == PUNTED)
+ string_list_insert(merge_rr, (const char *)e->name);
+ else if (conflict_type == RESOLVED) {
+ struct string_list_item *it;
+ it = string_list_lookup(merge_rr, (const char *)e->name);
+ if (it != NULL) {
+ free(it->util);
+ it->util = RERERE_RESOLVED;
+ }
}
}
return 0;
@@ -364,7 +426,7 @@ static int find_conflict(struct string_list *conflict)
static int merge(const char *name, const char *path)
{
int ret;
- mmfile_t cur, base, other;
+ mmfile_t cur = {NULL, 0}, base = {NULL, 0}, other = {NULL, 0};
mmbuffer_t result = {NULL, 0};
if (handle_file(path, NULL, rerere_path(name, "thisimage")) < 0)
@@ -372,11 +434,19 @@ static int merge(const char *name, const char *path)
if (read_mmfile(&cur, rerere_path(name, "thisimage")) ||
read_mmfile(&base, rerere_path(name, "preimage")) ||
- read_mmfile(&other, rerere_path(name, "postimage")))
- return 1;
- ret = ll_merge(&result, path, &base, &cur, "", &other, "", 0);
+ read_mmfile(&other, rerere_path(name, "postimage"))) {
+ ret = 1;
+ goto out;
+ }
+ ret = ll_merge(&result, path, &base, NULL, &cur, "", &other, "", NULL);
if (!ret) {
- FILE *f = fopen(path, "w");
+ FILE *f;
+
+ if (utime(rerere_path(name, "postimage"), NULL) < 0)
+ warning("failed utime() on %s: %s",
+ rerere_path(name, "postimage"),
+ strerror(errno));
+ f = fopen(path, "w");
if (!f)
return error("Could not open %s: %s", path,
strerror(errno));
@@ -387,6 +457,7 @@ static int merge(const char *name, const char *path)
strerror(errno));
}
+out:
free(cur.ptr);
free(base.ptr);
free(other.ptr);
@@ -423,8 +494,8 @@ static int update_paths(struct string_list *update)
static int do_plain_rerere(struct string_list *rr, int fd)
{
- struct string_list conflict = { NULL, 0, 0, 1 };
- struct string_list update = { NULL, 0, 0, 1 };
+ struct string_list conflict = STRING_LIST_INIT_DUP;
+ struct string_list update = STRING_LIST_INIT_DUP;
int i;
find_conflict(&conflict);
@@ -446,7 +517,7 @@ static int do_plain_rerere(struct string_list *rr, int fd)
if (ret < 1)
continue;
hex = xstrdup(sha1_to_hex(sha1));
- string_list_insert(path, rr)->util = hex;
+ string_list_insert(rr, path)->util = hex;
if (mkdir(git_path("rr-cache/%s", hex), 0755))
continue;
handle_file(path, NULL, rerere_path(hex, "preimage"));
@@ -468,7 +539,7 @@ static int do_plain_rerere(struct string_list *rr, int fd)
if (has_rerere_resolution(name)) {
if (!merge(name, path)) {
if (rerere_autoupdate)
- string_list_insert(path, &update);
+ string_list_insert(&update, path);
fprintf(stderr,
"%s '%s' using previous resolution.\n",
rerere_autoupdate
@@ -519,8 +590,7 @@ static int is_rerere_enabled(void)
if (rerere_enabled < 0)
return rr_cache_exists;
- if (!rr_cache_exists &&
- (mkdir(rr_cache, 0777) || adjust_shared_perm(rr_cache)))
+ if (!rr_cache_exists && mkdir_in_gitdir(rr_cache))
die("Could not create directory %s", rr_cache);
return 1;
}
@@ -544,7 +614,7 @@ int setup_rerere(struct string_list *merge_rr, int flags)
int rerere(int flags)
{
- struct string_list merge_rr = { NULL, 0, 0, 1 };
+ struct string_list merge_rr = STRING_LIST_INIT_DUP;
int fd;
fd = setup_rerere(&merge_rr, flags);
@@ -574,7 +644,7 @@ static int rerere_forget_one_path(const char *path, struct string_list *rr)
fprintf(stderr, "Updated preimage for '%s'\n", path);
- string_list_insert(path, rr)->util = hex;
+ string_list_insert(rr, path)->util = hex;
fprintf(stderr, "Forgot resolution for %s\n", path);
return 0;
}
@@ -582,8 +652,8 @@ static int rerere_forget_one_path(const char *path, struct string_list *rr)
int rerere_forget(const char **pathspec)
{
int i, fd;
- struct string_list conflict = { NULL, 0, 0, 1 };
- struct string_list merge_rr = { NULL, 0, 0, 1 };
+ struct string_list conflict = STRING_LIST_INIT_DUP;
+ struct string_list merge_rr = STRING_LIST_INIT_DUP;
if (read_cache() < 0)
return error("Could not read index");
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 14:40:55 +0000