diff options
| -rw-r--r-- | Documentation/git-cat-file.txt | 13 | ||||
| -rw-r--r-- | cat-file.c | 47 |
2 files changed, 42 insertions, 18 deletions
diff --git a/Documentation/git-cat-file.txt b/Documentation/git-cat-file.txt index ab4dcae..9a7700f 100644 --- a/Documentation/git-cat-file.txt +++ b/Documentation/git-cat-file.txt @@ -8,7 +8,7 @@ git-cat-file - Provide content or type information for repository objects SYNOPSIS -------- -'git-cat-file' (-t | -s | <type>) <object> +'git-cat-file' (-t | -s | -e | <type>) <object> DESCRIPTION ----------- @@ -29,6 +29,10 @@ OPTIONS Instead of the content, show the object size identified by <object>. +-e:: + Suppress all output; instead exit with zero status if <object> + exists and is a valid object. + <type>:: Typically this matches the real type of <object> but asking for a type that can trivially be dereferenced from the given @@ -39,8 +43,11 @@ OPTIONS OUTPUT ------ -If '-t' is specified, one of the <type>. If '-s' is specified, -the size of the <object> in bytes. +If '-t' is specified, one of the <type>. + +If '-s' is specified, the size of the <object> in bytes. + +If '-e' is specified, no output. Otherwise the raw (though uncompressed) contents of the <object> will be returned. @@ -11,27 +11,44 @@ int main(int argc, char **argv) char type[20]; void *buf; unsigned long size; + int opt; setup_git_directory(); if (argc != 3 || get_sha1(argv[2], sha1)) - usage("git-cat-file [-t | -s | <type>] <sha1>"); - - if (!strcmp("-t", argv[1]) || !strcmp("-s", argv[1])) { - if (!sha1_object_info(sha1, type, - argv[1][1] == 's' ? &size : NULL)) { - switch (argv[1][1]) { - case 't': - printf("%s\n", type); - break; - case 's': - printf("%lu\n", size); - break; - } + usage("git-cat-file [-t|-s|-e|<type>] <sha1>"); + + opt = 0; + if ( argv[1][0] == '-' ) { + opt = argv[1][1]; + if ( !opt || argv[1][2] ) + opt = -1; /* Not a single character option */ + } + + buf = NULL; + switch (opt) { + case 't': + if (!sha1_object_info(sha1, type, NULL)) { + printf("%s\n", type); return 0; } - buf = NULL; - } else { + break; + + case 's': + if (!sha1_object_info(sha1, type, &size)) { + printf("%lu\n", size); + return 0; + } + break; + + case 'e': + return !has_sha1_file(sha1); + + case 0: buf = read_object_with_reference(sha1, argv[1], &size, NULL); + break; + + default: + die("git-cat-file: unknown option: %s\n", argv[1]); } if (!buf) |