static void update_file(int clean,
const unsigned char *sha,
unsigned mode,
const char *path)
{
update_file_flags(sha, mode, path, index_only || clean, !index_only);
}
static int update_file(struct merge_options *o,
int clean,
const unsigned char *sha,
unsigned mode,
const char *path)
{
return update_file_flags(o, sha, mode, path, clean, 1);
}
static void update_file(struct merge_options *o,
int clean,
const unsigned char *sha,
unsigned mode,
const char *path)
{
update_file_flags(o, sha, mode, path, o->call_depth || clean, !o->call_depth);
}
/* Per entry merge function */
static int process_entry(struct merge_options *o,
const char *path,
struct stage_data *entry)
{
/*
printf("processing entry, clean cache: %s\n", index_only ? "yes": "no");
print_index_entry("\tpath: ", entry);
*/
int clean_merge = 1;
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 = o_mode ? entry->stages[1].sha : NULL;
unsigned char *a_sha = a_mode ? entry->stages[2].sha : NULL;
unsigned char *b_sha = b_mode ? entry->stages[3].sha : NULL;
unsigned int a_ctime = entry->stages[2].ctime;
unsigned int a_mtime = entry->stages[2].mtime;
/* if (entry->rename_df_conflict_info) */
/* return 1; /\* Such cases are handled elsewhere. *\/ */
entry->processed = 1;
if (o_sha && (!a_sha || !b_sha)) {
/* Case A: Deleted in one */
if ((!a_sha && !b_sha) ||
(!b_sha && memcmp(o_sha, a_sha, 20) == 0 && o_mode == a_mode) ||
(!a_sha && memcmp(o_sha, b_sha, 20) == 0 && o_mode == b_mode)) {
/* Deleted in both or deleted in one and
* unchanged in the other */
/* do not touch working file if it did not exist */
/* do not remove working file if it's changed. */
remove_file(o, 1, path, !a_sha, a_ctime, a_mtime);
} else if (g_hash_table_lookup(o->current_directory_set,
path)) {
/* file -> (file, directory), the file side. */
entry->processed = 0;
return 1;
} else {
/* Deleted in one and changed in the other */
/* or directory -> (file, directory), directory side */
clean_merge = 0;
handle_delete_modify(o, path, path,
a_sha, a_mode, b_sha, b_mode);
}
} else if ((!o_sha && a_sha && !b_sha) ||
(!o_sha && !a_sha && b_sha)) {
/* Case B: Added in one. */
if (g_hash_table_lookup(o->current_directory_set, path)) {
/* directory -> (file, directory), file side. */
entry->processed = 0;
return 1;
} else {
/* Added in one */
/* or file -> (file, directory), directory side */
if (b_sha)
clean_merge = update_file(o, 1, b_sha, b_mode, path);
else
/* For my file, just set index entry to stage 0,
* without updating worktree. */
update_file_flags (o, a_sha, a_mode, path, 1, 0);
}
} else if (a_sha && b_sha) {
/* Case C: Added in both (check for same permissions) and */
/* case D: Modified in both, but differently. */
if (memcmp(a_sha, b_sha, 20) != 0 || a_mode != b_mode) {
char *new_path = NULL;
char *conflict_suffix = NULL;
clean_merge = 0;
if (S_ISDIR (b_mode))
goto out;
if (!o->collect_blocks_only) {
conflict_suffix = get_last_changer_of_file (o->remote_head, path);
if (!conflict_suffix)
conflict_suffix = g_strdup(o->branch2);
new_path = gen_conflict_path (path, conflict_suffix);
}
/* Dont update index. */
/* Keep my version, rename other's version. */
update_file_flags(o, b_sha, b_mode, new_path, 0, 1);
g_free (new_path);
g_free (conflict_suffix);
} else {
update_file_flags (o, a_sha, b_mode, path, 1, 0);
}
} 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(o, 1, path, !a_mode, a_ctime, a_mtime);
} else
g_error("Fatal merge failure, shouldn't happen.");
out:
return clean_merge;
}
/* Per entry merge function */
static int process_entry(struct merge_options *o,
const char *path, struct stage_data *entry)
{
/*
printf("processing entry, clean cache: %s\n", index_only ? "yes": "no");
print_index_entry("\tpath: ", entry);
*/
int clean_merge = 1;
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 */
if ((!a_sha && !b_sha) ||
(sha_eq(a_sha, o_sha) && !b_sha) ||
(!a_sha && sha_eq(b_sha, o_sha))) {
/* Deleted in both or deleted in one and
* unchanged in the other */
if (a_sha)
output(o, 2, "Removing %s", path);
/* do not touch working file if it did not exist */
remove_file(o, 1, path, !a_sha);
} else {
/* Deleted in one and changed in the other */
clean_merge = 0;
if (!a_sha) {
output(o, 1, "CONFLICT (delete/modify): %s deleted in %s "
"and modified in %s. Version %s of %s left in tree.",
path, o->branch1,
o->branch2, o->branch2, path);
update_file(o, 0, b_sha, b_mode, path);
} else {
output(o, 1, "CONFLICT (delete/modify): %s deleted in %s "
"and modified in %s. Version %s of %s left in tree.",
path, o->branch2,
o->branch1, o->branch1, path);
update_file(o, 0, a_sha, a_mode, path);
}
}
} else if ((!o_sha && a_sha && !b_sha) ||
(!o_sha && !a_sha && b_sha)) {
/* Case B: Added in one. */
const char *add_branch;
const char *other_branch;
unsigned mode;
const unsigned char *sha;
const char *conf;
if (a_sha) {
add_branch = o->branch1;
other_branch = o->branch2;
mode = a_mode;
sha = a_sha;
conf = "file/directory";
} else {
add_branch = o->branch2;
other_branch = o->branch1;
mode = b_mode;
sha = b_sha;
conf = "directory/file";
}
if (string_list_has_string(&o->current_directory_set, path)) {
const char *new_path = unique_path(o, path, add_branch);
clean_merge = 0;
output(o, 1, "CONFLICT (%s): There is a directory with name %s in %s. "
"Adding %s as %s",
conf, path, other_branch, path, new_path);
remove_file(o, 0, path, 0);
update_file(o, 0, sha, mode, new_path);
} else {
output(o, 2, "Adding %s", path);
update_file(o, 1, sha, mode, path);
}
} else if (a_sha && b_sha) {
/* Case C: Added in both (check for same permissions) and */
/* case D: Modified in both, but differently. */
const char *reason = "content";
struct merge_file_info mfi;
struct diff_filespec one, a, b;
if (!o_sha) {
reason = "add/add";
o_sha = (unsigned char *)null_sha1;
}
output(o, 2, "Auto-merging %s", path);
one.path = a.path = b.path = (char *)path;
hashcpy(one.sha1, o_sha);
one.mode = o_mode;
hashcpy(a.sha1, a_sha);
a.mode = a_mode;
hashcpy(b.sha1, b_sha);
b.mode = b_mode;
mfi = merge_file(o, &one, &a, &b,
o->branch1, o->branch2);
clean_merge = mfi.clean;
if (mfi.clean)
update_file(o, 1, mfi.sha, mfi.mode, path);
else if (S_ISGITLINK(mfi.mode))
output(o, 1, "CONFLICT (submodule): Merge conflict in %s "
"- needs %s", path, sha1_to_hex(b.sha1));
else {
output(o, 1, "CONFLICT (%s): Merge conflict in %s",
reason, path);
if (o->call_depth)
update_file(o, 0, mfi.sha, mfi.mode, path);
else
update_file_flags(o, 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(o, 1, path, !a_mode);
} else
die("Fatal merge failure, shouldn't happen.");
return clean_merge;
}