| 1 | /* |
| 2 | * GIT - The information manager from hell |
| 3 | */ |
| 4 | |
| 5 | #define USE_THE_REPOSITORY_VARIABLE |
| 6 | |
| 7 | #include "builtin.h" |
| 8 | #include "refs.h" |
| 9 | #include "setup.h" |
| 10 | #include "strbuf.h" |
| 11 | |
| 12 | static const char builtin_check_ref_format_usage[] = |
| 13 | "git check-ref-format [--normalize] [<options>] <refname>\n" |
| 14 | " or: git check-ref-format --branch <branchname-shorthand>"; |
| 15 | |
| 16 | /* |
| 17 | * Return a copy of refname but with leading slashes removed and runs |
| 18 | * of adjacent slashes replaced with single slashes. |
| 19 | * |
| 20 | * This function is similar to normalize_path_copy(), but stripped down |
| 21 | * to meet check_ref_format's simpler needs. |
| 22 | */ |
| 23 | static char *collapse_slashes(const char *refname) |
| 24 | { |
| 25 | char *ret = xmallocz(strlen(refname)); |
| 26 | char ch; |
| 27 | char prev = '/'; |
| 28 | char *cp = ret; |
| 29 | |
| 30 | while ((ch = *refname++) != '\0') { |
| 31 | if (prev == '/' && ch == prev) |
| 32 | continue; |
| 33 | |
| 34 | *cp++ = ch; |
| 35 | prev = ch; |
| 36 | } |
| 37 | *cp = '\0'; |
| 38 | return ret; |
| 39 | } |
| 40 | |
| 41 | static int check_ref_format_branch(const char *arg) |
| 42 | { |
| 43 | struct strbuf sb = STRBUF_INIT; |
| 44 | const char *name; |
| 45 | int nongit; |
| 46 | |
| 47 | setup_git_directory_gently(the_repository, &nongit); |
| 48 | if (check_branch_ref(the_repository, &sb, arg) || |
| 49 | !skip_prefix(sb.buf, "refs/heads/", &name)) |
| 50 | die("'%s' is not a valid branch name", arg); |
| 51 | printf("%s\n", name); |
| 52 | strbuf_release(&sb); |
| 53 | return 0; |
| 54 | } |
| 55 | |
| 56 | int cmd_check_ref_format(int argc, |
| 57 | const char **argv, |
| 58 | const char *prefix, |
| 59 | struct repository *repo UNUSED) |
| 60 | { |
| 61 | int i; |
| 62 | int normalize = 0; |
| 63 | int flags = 0; |
| 64 | const char *refname; |
| 65 | char *to_free = NULL; |
| 66 | int ret = 1; |
| 67 | |
| 68 | BUG_ON_NON_EMPTY_PREFIX(prefix); |
| 69 | |
| 70 | show_usage_if_asked(argc, argv, |
| 71 | builtin_check_ref_format_usage); |
| 72 | |
| 73 | if (argc == 3 && !strcmp(argv[1], "--branch")) |
| 74 | return check_ref_format_branch(argv[2]); |
| 75 | |
| 76 | for (i = 1; i < argc && argv[i][0] == '-'; i++) { |
| 77 | if (!strcmp(argv[i], "--normalize") || !strcmp(argv[i], "--print")) |
| 78 | normalize = 1; |
| 79 | else if (!strcmp(argv[i], "--allow-onelevel")) |
| 80 | flags |= REFNAME_ALLOW_ONELEVEL; |
| 81 | else if (!strcmp(argv[i], "--no-allow-onelevel")) |
| 82 | flags &= ~REFNAME_ALLOW_ONELEVEL; |
| 83 | else if (!strcmp(argv[i], "--refspec-pattern")) |
| 84 | flags |= REFNAME_REFSPEC_PATTERN; |
| 85 | else |
| 86 | usage(builtin_check_ref_format_usage); |
| 87 | } |
| 88 | if (! (i == argc - 1)) |
| 89 | usage(builtin_check_ref_format_usage); |
| 90 | |
| 91 | refname = argv[i]; |
| 92 | if (normalize) |
| 93 | refname = to_free = collapse_slashes(refname); |
| 94 | if (check_refname_format(refname, flags)) |
| 95 | goto cleanup; |
| 96 | if (normalize) |
| 97 | printf("%s\n", refname); |
| 98 | |
| 99 | ret = 0; |
| 100 | cleanup: |
| 101 | free(to_free); |
| 102 | return ret; |
| 103 | } |