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54b0c1e0 CC |
1 | /* |
2 | * Builtin "git replace" | |
3 | * | |
4 | * Copyright (c) 2008 Christian Couder <chriscool@tuxfamily.org> | |
5 | * | |
6 | * Based on builtin-tag.c by Kristian Høgsberg <krh@redhat.com> | |
7 | * and Carlos Rica <jasampler@gmail.com> that was itself based on | |
8 | * git-tag.sh and mktag.c by Linus Torvalds. | |
9 | */ | |
10 | ||
11 | #include "cache.h" | |
12 | #include "builtin.h" | |
13 | #include "refs.h" | |
14 | #include "parse-options.h" | |
15 | ||
16 | static const char * const git_replace_usage[] = { | |
17 | "git replace -d <object>...", | |
18 | "git replace -l [<pattern>]", | |
19 | NULL | |
20 | }; | |
21 | ||
22 | static int show_reference(const char *refname, const unsigned char *sha1, | |
23 | int flag, void *cb_data) | |
24 | { | |
25 | const char *pattern = cb_data; | |
26 | ||
27 | if (!fnmatch(pattern, refname, 0)) | |
28 | printf("%s\n", refname); | |
29 | ||
30 | return 0; | |
31 | } | |
32 | ||
33 | static int list_replace_refs(const char *pattern) | |
34 | { | |
35 | if (pattern == NULL) | |
36 | pattern = "*"; | |
37 | ||
38 | for_each_replace_ref(show_reference, (void *) pattern); | |
39 | ||
40 | return 0; | |
41 | } | |
42 | ||
43 | typedef int (*each_replace_name_fn)(const char *name, const char *ref, | |
44 | const unsigned char *sha1); | |
45 | ||
46 | static int for_each_replace_name(const char **argv, each_replace_name_fn fn) | |
47 | { | |
48 | const char **p; | |
49 | char ref[PATH_MAX]; | |
50 | int had_error = 0; | |
51 | unsigned char sha1[20]; | |
52 | ||
53 | for (p = argv; *p; p++) { | |
54 | if (snprintf(ref, sizeof(ref), "refs/replace/%s", *p) | |
55 | >= sizeof(ref)) { | |
56 | error("replace ref name too long: %.*s...", 50, *p); | |
57 | had_error = 1; | |
58 | continue; | |
59 | } | |
60 | if (!resolve_ref(ref, sha1, 1, NULL)) { | |
61 | error("replace ref '%s' not found.", *p); | |
62 | had_error = 1; | |
63 | continue; | |
64 | } | |
65 | if (fn(*p, ref, sha1)) | |
66 | had_error = 1; | |
67 | } | |
68 | return had_error; | |
69 | } | |
70 | ||
71 | static int delete_replace_ref(const char *name, const char *ref, | |
72 | const unsigned char *sha1) | |
73 | { | |
74 | if (delete_ref(ref, sha1, 0)) | |
75 | return 1; | |
76 | printf("Deleted replace ref '%s'\n", name); | |
77 | return 0; | |
78 | } | |
79 | ||
80 | int cmd_replace(int argc, const char **argv, const char *prefix) | |
81 | { | |
82 | int list = 0, delete = 0; | |
83 | struct option options[] = { | |
84 | OPT_BOOLEAN('l', NULL, &list, "list replace refs"), | |
85 | OPT_BOOLEAN('d', NULL, &delete, "delete replace refs"), | |
86 | OPT_END() | |
87 | }; | |
88 | ||
89 | argc = parse_options(argc, argv, options, git_replace_usage, 0); | |
90 | ||
91 | if (list && delete) | |
92 | usage_with_options(git_replace_usage, options); | |
93 | ||
94 | if (delete) { | |
95 | if (argc < 1) | |
96 | usage_with_options(git_replace_usage, options); | |
97 | return for_each_replace_name(argv, delete_replace_ref); | |
98 | } | |
99 | ||
100 | /* List refs, even if "list" is not set */ | |
101 | if (argc > 1) | |
102 | usage_with_options(git_replace_usage, options); | |
103 | ||
104 | return list_replace_refs(argv[0]); | |
105 | } |