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git/builtin/merge-recursive.c
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| #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; | |
| } |