mirror of
https://github.com/git/git.git
synced 2024-11-15 14:53:12 +01:00
c18ac30e9e
The recursive merge strategy did not properly ensure there was no change between HEAD and the index before performing its operation, which has been corrected. * en/dirty-merge-fixes: merge: fix misleading pre-merge check documentation merge-recursive: enforce rule that index matches head before merging t6044: add more testcases with staged changes before a merge is invoked merge-recursive: fix assumption that head tree being merged is HEAD merge-recursive: make sure when we say we abort that we actually abort t6044: add a testcase for index matching head, when head doesn't match HEAD t6044: verify that merges expected to abort actually abort index_has_changes(): avoid assuming operating on the_index read-cache.c: move index_has_changes() from merge.c
108 lines
2.7 KiB
C
108 lines
2.7 KiB
C
#include "cache.h"
|
|
#include "diff.h"
|
|
#include "diffcore.h"
|
|
#include "lockfile.h"
|
|
#include "commit.h"
|
|
#include "run-command.h"
|
|
#include "resolve-undo.h"
|
|
#include "tree-walk.h"
|
|
#include "unpack-trees.h"
|
|
#include "dir.h"
|
|
|
|
static const char *merge_argument(struct commit *commit)
|
|
{
|
|
return oid_to_hex(commit ? &commit->object.oid : the_hash_algo->empty_tree);
|
|
}
|
|
|
|
int try_merge_command(const char *strategy, size_t xopts_nr,
|
|
const char **xopts, struct commit_list *common,
|
|
const char *head_arg, struct commit_list *remotes)
|
|
{
|
|
struct argv_array args = ARGV_ARRAY_INIT;
|
|
int i, ret;
|
|
struct commit_list *j;
|
|
|
|
argv_array_pushf(&args, "merge-%s", strategy);
|
|
for (i = 0; i < xopts_nr; i++)
|
|
argv_array_pushf(&args, "--%s", xopts[i]);
|
|
for (j = common; j; j = j->next)
|
|
argv_array_push(&args, merge_argument(j->item));
|
|
argv_array_push(&args, "--");
|
|
argv_array_push(&args, head_arg);
|
|
for (j = remotes; j; j = j->next)
|
|
argv_array_push(&args, merge_argument(j->item));
|
|
|
|
ret = run_command_v_opt(args.argv, RUN_GIT_CMD);
|
|
argv_array_clear(&args);
|
|
|
|
discard_cache();
|
|
if (read_cache() < 0)
|
|
die(_("failed to read the cache"));
|
|
resolve_undo_clear();
|
|
|
|
return ret;
|
|
}
|
|
|
|
int checkout_fast_forward(const struct object_id *head,
|
|
const struct object_id *remote,
|
|
int overwrite_ignore)
|
|
{
|
|
struct tree *trees[MAX_UNPACK_TREES];
|
|
struct unpack_trees_options opts;
|
|
struct tree_desc t[MAX_UNPACK_TREES];
|
|
int i, nr_trees = 0;
|
|
struct dir_struct dir;
|
|
struct lock_file lock_file = LOCK_INIT;
|
|
|
|
refresh_cache(REFRESH_QUIET);
|
|
|
|
if (hold_locked_index(&lock_file, LOCK_REPORT_ON_ERROR) < 0)
|
|
return -1;
|
|
|
|
memset(&trees, 0, sizeof(trees));
|
|
memset(&t, 0, sizeof(t));
|
|
|
|
trees[nr_trees] = parse_tree_indirect(head);
|
|
if (!trees[nr_trees++]) {
|
|
rollback_lock_file(&lock_file);
|
|
return -1;
|
|
}
|
|
trees[nr_trees] = parse_tree_indirect(remote);
|
|
if (!trees[nr_trees++]) {
|
|
rollback_lock_file(&lock_file);
|
|
return -1;
|
|
}
|
|
for (i = 0; i < nr_trees; i++) {
|
|
parse_tree(trees[i]);
|
|
init_tree_desc(t+i, trees[i]->buffer, trees[i]->size);
|
|
}
|
|
|
|
memset(&opts, 0, sizeof(opts));
|
|
if (overwrite_ignore) {
|
|
memset(&dir, 0, sizeof(dir));
|
|
dir.flags |= DIR_SHOW_IGNORED;
|
|
setup_standard_excludes(&dir);
|
|
opts.dir = &dir;
|
|
}
|
|
|
|
opts.head_idx = 1;
|
|
opts.src_index = &the_index;
|
|
opts.dst_index = &the_index;
|
|
opts.update = 1;
|
|
opts.verbose_update = 1;
|
|
opts.merge = 1;
|
|
opts.fn = twoway_merge;
|
|
setup_unpack_trees_porcelain(&opts, "merge");
|
|
|
|
if (unpack_trees(nr_trees, t, &opts)) {
|
|
rollback_lock_file(&lock_file);
|
|
clear_unpack_trees_porcelain(&opts);
|
|
return -1;
|
|
}
|
|
clear_unpack_trees_porcelain(&opts);
|
|
|
|
if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
|
|
return error(_("unable to write new index file"));
|
|
return 0;
|
|
}
|