| 1 | #include "../git-compat-util.h" |
| 2 | #include "../strbuf.h" |
| 3 | |
| 4 | /* Adapted from libiberty's basename.c. */ |
| 5 | char *gitbasename (char *path) |
| 6 | { |
| 7 | const char *base; |
| 8 | |
| 9 | if (path) |
| 10 | skip_dos_drive_prefix(&path); |
| 11 | |
| 12 | if (!path || !*path) |
| 13 | /* |
| 14 | * basename(3P) is mis-specified because it returns a |
| 15 | * non-constant pointer even though it is specified to return a |
| 16 | * pointer to internal memory at times. The cast is a result of |
| 17 | * that. |
| 18 | */ |
| 19 | return (char *) "."; |
| 20 | |
| 21 | for (base = path; *path; path++) { |
| 22 | if (!is_dir_sep(*path)) |
| 23 | continue; |
| 24 | do { |
| 25 | path++; |
| 26 | } while (is_dir_sep(*path)); |
| 27 | if (*path) |
| 28 | base = path; |
| 29 | else |
| 30 | while (--path != base && is_dir_sep(*path)) |
| 31 | *path = '\0'; |
| 32 | } |
| 33 | return (char *)base; |
| 34 | } |
| 35 | |
| 36 | char *gitdirname(char *path) |
| 37 | { |
| 38 | static struct strbuf buf = STRBUF_INIT; |
| 39 | char *p = path, *slash = NULL, c; |
| 40 | int dos_drive_prefix; |
| 41 | |
| 42 | if (!p) |
| 43 | /* |
| 44 | * dirname(3P) is mis-specified because it returns a |
| 45 | * non-constant pointer even though it is specified to return a |
| 46 | * pointer to internal memory at times. The cast is a result of |
| 47 | * that. |
| 48 | */ |
| 49 | return (char *) "."; |
| 50 | |
| 51 | if ((dos_drive_prefix = skip_dos_drive_prefix(&p)) && !*p) |
| 52 | goto dot; |
| 53 | |
| 54 | /* |
| 55 | * POSIX.1-2001 says dirname("/") should return "/", and dirname("//") |
| 56 | * should return "//", but dirname("///") should return "/" again. |
| 57 | */ |
| 58 | if (is_dir_sep(*p)) { |
| 59 | if (!p[1] || (is_dir_sep(p[1]) && !p[2])) |
| 60 | return path; |
| 61 | slash = ++p; |
| 62 | } |
| 63 | while ((c = *(p++))) |
| 64 | if (is_dir_sep(c)) { |
| 65 | char *tentative = p - 1; |
| 66 | |
| 67 | /* POSIX.1-2001 says to ignore trailing slashes */ |
| 68 | while (is_dir_sep(*p)) |
| 69 | p++; |
| 70 | if (*p) |
| 71 | slash = tentative; |
| 72 | } |
| 73 | |
| 74 | if (slash) { |
| 75 | *slash = '\0'; |
| 76 | return path; |
| 77 | } |
| 78 | |
| 79 | dot: |
| 80 | strbuf_reset(&buf); |
| 81 | strbuf_addf(&buf, "%.*s.", dos_drive_prefix, path); |
| 82 | return buf.buf; |
| 83 | } |