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| author | Vincent Ambo <Vincent Ambo> | 2020-01-11T23·36+0000 |
|---|---|---|
| committer | Vincent Ambo <Vincent Ambo> | 2020-01-11T23·40+0000 |
| commit | 7ef0d62730840ded097b524104cc0a0904591a63 (patch) | |
| tree | a670f96103667aeca4789a95d94ca0dff550c4ce /third_party/git/builtin/merge-recursive.c | |
| parent | 6a2a3007077818e24a3d56fc492ada9206a10cf0 (diff) | |
| parent | 1b593e1ea4d2af0f6444d9a7788d5d99abd6fde5 (diff) | |
merge(third_party/git): Merge squashed git subtree at v2.23.0 r/373
Merge commit '1b593e1ea4d2af0f6444d9a7788d5d99abd6fde5' as 'third_party/git'
Diffstat (limited to 'third_party/git/builtin/merge-recursive.c')
| -rw-r--r-- | third_party/git/builtin/merge-recursive.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/third_party/git/builtin/merge-recursive.c b/third_party/git/builtin/merge-recursive.c new file mode 100644 index 000000000000..5b910e351e4d --- /dev/null +++ b/third_party/git/builtin/merge-recursive.c @@ -0,0 +1,88 @@ +#include "builtin.h" +#include "commit.h" +#include "tag.h" +#include "merge-recursive.h" +#include "xdiff-interface.h" + +static const char builtin_merge_recursive_usage[] = + "git %s <base>... -- <head> <remote> ..."; + +static char *better_branch_name(const char *branch) +{ + static char githead_env[8 + GIT_MAX_HEXSZ + 1]; + char *name; + + if (strlen(branch) != the_hash_algo->hexsz) + return xstrdup(branch); + xsnprintf(githead_env, sizeof(githead_env), "GITHEAD_%s", branch); + name = getenv(githead_env); + return xstrdup(name ? name : branch); +} + +int cmd_merge_recursive(int argc, const char **argv, const char *prefix) +{ + const struct object_id *bases[21]; + unsigned bases_count = 0; + int i, failed; + struct object_id h1, h2; + struct merge_options o; + char *better1, *better2; + struct commit *result; + + init_merge_options(&o, the_repository); + if (argv[0] && ends_with(argv[0], "-subtree")) + o.subtree_shift = ""; + + if (argc < 4) + usagef(builtin_merge_recursive_usage, argv[0]); + + for (i = 1; i < argc; ++i) { + const char *arg = argv[i]; + + if (starts_with(arg, "--")) { + if (!arg[2]) + break; + if (parse_merge_opt(&o, arg + 2)) + die(_("unknown option %s"), arg); + continue; + } + if (bases_count < ARRAY_SIZE(bases)-1) { + struct object_id *oid = xmalloc(sizeof(struct object_id)); + if (get_oid(argv[i], oid)) + die(_("could not parse object '%s'"), argv[i]); + bases[bases_count++] = oid; + } + else + warning(Q_("cannot handle more than %d base. " + "Ignoring %s.", + "cannot handle more than %d bases. " + "Ignoring %s.", + (int)ARRAY_SIZE(bases)-1), + (int)ARRAY_SIZE(bases)-1, argv[i]); + } + if (argc - i != 3) /* "--" "<head>" "<remote>" */ + die(_("not handling anything other than two heads merge.")); + + o.branch1 = argv[++i]; + o.branch2 = argv[++i]; + + if (get_oid(o.branch1, &h1)) + die(_("could not resolve ref '%s'"), o.branch1); + if (get_oid(o.branch2, &h2)) + die(_("could not resolve ref '%s'"), o.branch2); + + o.branch1 = better1 = better_branch_name(o.branch1); + o.branch2 = better2 = better_branch_name(o.branch2); + + if (o.verbosity >= 3) + printf(_("Merging %s with %s\n"), o.branch1, o.branch2); + + failed = merge_recursive_generic(&o, &h1, &h2, bases_count, bases, &result); + + free(better1); + free(better2); + + if (failed < 0) + return 128; /* die() error code */ + return failed; +} |