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-rw-r--r--merge-recursive.c114
1 files changed, 44 insertions, 70 deletions
diff --git a/merge-recursive.c b/merge-recursive.c
index 3d395895fc..403a4c8bca 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -97,11 +97,6 @@ static struct path_list current_directory_set = {NULL, 0, 0, 1};
static int call_depth = 0;
static int verbosity = 2;
static int buffer_output = 1;
-static int do_progress = 1;
-static unsigned last_percent;
-static unsigned merged_cnt;
-static unsigned total_cnt;
-static volatile sig_atomic_t progress_update;
static struct output_buffer *output_list, *output_end;
static int show (int v)
@@ -176,39 +171,6 @@ static void output_commit_title(struct commit *commit)
}
}
-static void progress_interval(int signum)
-{
- progress_update = 1;
-}
-
-static void setup_progress_signal(void)
-{
- struct sigaction sa;
- struct itimerval v;
-
- memset(&sa, 0, sizeof(sa));
- sa.sa_handler = progress_interval;
- sigemptyset(&sa.sa_mask);
- sa.sa_flags = SA_RESTART;
- sigaction(SIGALRM, &sa, NULL);
-
- v.it_interval.tv_sec = 1;
- v.it_interval.tv_usec = 0;
- v.it_value = v.it_interval;
- setitimer(ITIMER_REAL, &v, NULL);
-}
-
-static void display_progress()
-{
- unsigned percent = total_cnt ? merged_cnt * 100 / total_cnt : 0;
- if (progress_update || percent != last_percent) {
- fprintf(stderr, "%4u%% (%u/%u) done\r",
- percent, merged_cnt, total_cnt);
- progress_update = 0;
- last_percent = percent;
- }
-}
-
static struct cache_entry *make_cache_entry(unsigned int mode,
const unsigned char *sha1, const char *path, int stage, int refresh)
{
@@ -379,14 +341,11 @@ static struct path_list *get_unmerged(void)
int i;
unmerged->strdup_paths = 1;
- total_cnt += active_nr;
- for (i = 0; i < active_nr; i++, merged_cnt++) {
+ for (i = 0; i < active_nr; i++) {
struct path_list_item *item;
struct stage_data *e;
struct cache_entry *ce = active_cache[i];
- if (do_progress)
- display_progress();
if (!ce_stage(ce))
continue;
@@ -576,6 +535,31 @@ static void flush_buffer(int fd, const char *buf, unsigned long size)
}
}
+static int make_room_for_path(const char *path)
+{
+ int status;
+ const char *msg = "failed to create path '%s'%s";
+
+ status = mkdir_p(path, 0777);
+ if (status) {
+ if (status == -3) {
+ /* something else exists */
+ error(msg, path, ": perhaps a D/F conflict?");
+ return -1;
+ }
+ die(msg, path, "");
+ }
+
+ /* Successful unlink is good.. */
+ if (!unlink(path))
+ return 0;
+ /* .. and so is no existing file */
+ if (errno == ENOENT)
+ return 0;
+ /* .. but not some other error (who really cares what?) */
+ return error(msg, path, ": perhaps a D/F conflict?");
+}
+
static void update_file_flags(const unsigned char *sha,
unsigned mode,
const char *path,
@@ -596,11 +580,12 @@ static void update_file_flags(const unsigned char *sha,
if (type != OBJ_BLOB)
die("blob expected for %s '%s'", sha1_to_hex(sha), path);
+ if (make_room_for_path(path) < 0) {
+ update_wd = 0;
+ goto update_index;
+ }
if (S_ISREG(mode) || (!has_symlinks && S_ISLNK(mode))) {
int fd;
- if (mkdir_p(path, 0777))
- die("failed to create path %s: %s", path, strerror(errno));
- unlink(path);
if (mode & 0100)
mode = 0777;
else
@@ -622,6 +607,7 @@ static void update_file_flags(const unsigned char *sha,
die("do not know what to do with %06o %s '%s'",
mode, sha1_to_hex(sha), path);
}
+ update_index:
if (update_cache)
add_cacheinfo(mode, sha, path, 0, update_wd, ADD_CACHE_OK_TO_ADD);
}
@@ -1379,9 +1365,9 @@ static int process_renames(struct path_list *a_renames,
return clean_merge;
}
-static unsigned char *has_sha(const unsigned char *sha)
+static unsigned char *stage_sha(const unsigned char *sha, unsigned mode)
{
- return is_null_sha1(sha) ? NULL: (unsigned char *)sha;
+ return (is_null_sha1(sha) || mode == 0) ? NULL: (unsigned char *)sha;
}
/* Per entry merge function */
@@ -1394,12 +1380,12 @@ static int process_entry(const char *path, struct stage_data *entry,
print_index_entry("\tpath: ", entry);
*/
int clean_merge = 1;
- unsigned char *o_sha = has_sha(entry->stages[1].sha);
- unsigned char *a_sha = has_sha(entry->stages[2].sha);
- unsigned char *b_sha = has_sha(entry->stages[3].sha);
unsigned o_mode = entry->stages[1].mode;
unsigned a_mode = entry->stages[2].mode;
unsigned b_mode = entry->stages[3].mode;
+ unsigned char *o_sha = stage_sha(entry->stages[1].sha, o_mode);
+ unsigned char *a_sha = stage_sha(entry->stages[2].sha, a_mode);
+ unsigned char *b_sha = stage_sha(entry->stages[3].sha, b_mode);
if (o_sha && (!a_sha || !b_sha)) {
/* Case A: Deleted in one */
@@ -1500,6 +1486,12 @@ static int process_entry(const char *path, struct stage_data *entry,
update_file_flags(mfi.sha, mfi.mode, path,
0 /* update_cache */, 1 /* update_working_directory */);
}
+ } else if (!o_sha && !a_sha && !b_sha) {
+ /*
+ * this entry was deleted altogether. a_mode == 0 means
+ * we had that path and want to actively remove it.
+ */
+ remove_file(1, path, !a_mode);
} else
die("Fatal merge failure, shouldn't happen.");
@@ -1546,15 +1538,12 @@ static int merge_trees(struct tree *head,
re_merge = get_renames(merge, common, head, merge, entries);
clean = process_renames(re_head, re_merge,
branch1, branch2);
- total_cnt += entries->nr;
- for (i = 0; i < entries->nr; i++, merged_cnt++) {
+ for (i = 0; i < entries->nr; i++) {
const char *path = entries->items[i].path;
struct stage_data *e = entries->items[i].util;
if (!e->processed
&& !process_entry(path, e, branch1, branch2))
clean = 0;
- if (do_progress)
- display_progress();
}
path_list_clear(re_merge, 0);
@@ -1662,15 +1651,6 @@ static int merge(struct commit *h1,
commit_list_insert(h1, &(*result)->parents);
commit_list_insert(h2, &(*result)->parents->next);
}
- if (!call_depth && do_progress) {
- /* Make sure we end at 100% */
- if (!total_cnt)
- total_cnt = 1;
- merged_cnt = total_cnt;
- progress_update = 1;
- display_progress();
- fputc('\n', stderr);
- }
flush_output();
return clean;
}
@@ -1747,12 +1727,8 @@ int main(int argc, char *argv[])
}
if (argc - i != 3) /* "--" "<head>" "<remote>" */
die("Not handling anything other than two heads merge.");
- if (verbosity >= 5) {
+ if (verbosity >= 5)
buffer_output = 0;
- do_progress = 0;
- }
- else
- do_progress = isatty(1);
branch1 = argv[++i];
branch2 = argv[++i];
@@ -1763,8 +1739,6 @@ int main(int argc, char *argv[])
branch1 = better_branch_name(branch1);
branch2 = better_branch_name(branch2);
- if (do_progress)
- setup_progress_signal();
if (show(3))
printf("Merging %s with %s\n", branch1, branch2);
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