| #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 const char *better_branch_name(const char *branch) |
| { |
| static char githead_env[8 + 40 + 1]; |
| char *name; |
| |
| if (strlen(branch) != 40) |
| return branch; |
| xsnprintf(githead_env, sizeof(githead_env), "GITHEAD_%s", branch); |
| name = getenv(githead_env); |
| return name ? name : branch; |
| } |
| |
| int cmd_merge_recursive(int argc, const char **argv, const char *prefix) |
| { |
| const unsigned char *bases[21]; |
| unsigned bases_count = 0; |
| int i, failed; |
| unsigned char h1[20], h2[20]; |
| struct merge_options o; |
| struct commit *result; |
| |
| init_merge_options(&o); |
| 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) { |
| unsigned char *sha = xmalloc(20); |
| if (get_sha1(argv[i], sha)) |
| die("Could not parse object '%s'", argv[i]); |
| bases[bases_count++] = sha; |
| } |
| else |
| warning("Cannot handle more than %d bases. " |
| "Ignoring %s.", |
| (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_sha1(o.branch1, h1)) |
| die("Could not resolve ref '%s'", o.branch1); |
| if (get_sha1(o.branch2, h2)) |
| die("Could not resolve ref '%s'", o.branch2); |
| |
| o.branch1 = better_branch_name(o.branch1); |
| o.branch2 = 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); |
| if (failed < 0) |
| return 128; /* die() error code */ |
| return failed; |
| } |
