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Commit | Line | Data |
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baffc0e7 | 1 | #include "builtin.h" |
658f3650 | 2 | #include "cache.h" |
8ca12c0d | 3 | #include "dir.h" |
c455c87c | 4 | #include "string-list.h" |
5b2fd956 | 5 | #include "rerere.h" |
658f3650 JS |
6 | #include "xdiff/xdiff.h" |
7 | #include "xdiff-interface.h" | |
8 | ||
658f3650 | 9 | static const char git_rerere_usage[] = |
1b1dd23f | 10 | "git rerere [clear | status | diff | gc]"; |
658f3650 JS |
11 | |
12 | /* these values are days */ | |
13 | static int cutoff_noresolve = 15; | |
14 | static int cutoff_resolve = 60; | |
15 | ||
9022a495 JH |
16 | static time_t rerere_created_at(const char *name) |
17 | { | |
18 | struct stat st; | |
90056966 | 19 | return stat(rerere_path(name, "preimage"), &st) ? (time_t) 0 : st.st_mtime; |
9022a495 JH |
20 | } |
21 | ||
658f3650 JS |
22 | static void unlink_rr_item(const char *name) |
23 | { | |
90056966 SG |
24 | unlink(rerere_path(name, "thisimage")); |
25 | unlink(rerere_path(name, "preimage")); | |
26 | unlink(rerere_path(name, "postimage")); | |
658f3650 JS |
27 | rmdir(git_path("rr-cache/%s", name)); |
28 | } | |
29 | ||
5b2fd956 SB |
30 | static int git_rerere_gc_config(const char *var, const char *value, void *cb) |
31 | { | |
32 | if (!strcmp(var, "gc.rerereresolved")) | |
33 | cutoff_resolve = git_config_int(var, value); | |
34 | else if (!strcmp(var, "gc.rerereunresolved")) | |
35 | cutoff_noresolve = git_config_int(var, value); | |
36 | else | |
37 | return git_default_config(var, value, cb); | |
38 | return 0; | |
39 | } | |
40 | ||
c455c87c | 41 | static void garbage_collect(struct string_list *rr) |
658f3650 | 42 | { |
c455c87c | 43 | struct string_list to_remove = { NULL, 0, 0, 1 }; |
658f3650 JS |
44 | DIR *dir; |
45 | struct dirent *e; | |
9022a495 | 46 | int i, cutoff; |
658f3650 JS |
47 | time_t now = time(NULL), then; |
48 | ||
5b2fd956 | 49 | git_config(git_rerere_gc_config, NULL); |
9022a495 | 50 | dir = opendir(git_path("rr-cache")); |
e5f59172 JK |
51 | if (!dir) |
52 | die_errno("unable to open rr-cache directory"); | |
658f3650 | 53 | while ((e = readdir(dir))) { |
8ca12c0d | 54 | if (is_dot_or_dotdot(e->d_name)) |
658f3650 | 55 | continue; |
8ca12c0d | 56 | then = rerere_created_at(e->d_name); |
9022a495 | 57 | if (!then) |
658f3650 | 58 | continue; |
90056966 | 59 | cutoff = (has_rerere_resolution(e->d_name) |
9022a495 JH |
60 | ? cutoff_resolve : cutoff_noresolve); |
61 | if (then < now - cutoff * 86400) | |
8ca12c0d | 62 | string_list_append(e->d_name, &to_remove); |
658f3650 JS |
63 | } |
64 | for (i = 0; i < to_remove.nr; i++) | |
c455c87c JS |
65 | unlink_rr_item(to_remove.items[i].string); |
66 | string_list_clear(&to_remove, 0); | |
658f3650 JS |
67 | } |
68 | ||
69 | static int outf(void *dummy, mmbuffer_t *ptr, int nbuf) | |
70 | { | |
71 | int i; | |
72 | for (i = 0; i < nbuf; i++) | |
93822c22 AW |
73 | if (write_in_full(1, ptr[i].ptr, ptr[i].size) != ptr[i].size) |
74 | return -1; | |
658f3650 JS |
75 | return 0; |
76 | } | |
77 | ||
78 | static int diff_two(const char *file1, const char *label1, | |
79 | const char *file2, const char *label2) | |
80 | { | |
81 | xpparam_t xpp; | |
82 | xdemitconf_t xecfg; | |
83 | xdemitcb_t ecb; | |
84 | mmfile_t minus, plus; | |
85 | ||
86 | if (read_mmfile(&minus, file1) || read_mmfile(&plus, file2)) | |
87 | return 1; | |
88 | ||
89 | printf("--- a/%s\n+++ b/%s\n", label1, label2); | |
90 | fflush(stdout); | |
9ccd0a88 | 91 | memset(&xpp, 0, sizeof(xpp)); |
658f3650 | 92 | xpp.flags = XDF_NEED_MINIMAL; |
30b25010 | 93 | memset(&xecfg, 0, sizeof(xecfg)); |
658f3650 | 94 | xecfg.ctxlen = 3; |
658f3650 | 95 | ecb.outf = outf; |
c279d7e9 | 96 | xdi_diff(&minus, &plus, &xpp, &xecfg, &ecb); |
658f3650 JS |
97 | |
98 | free(minus.ptr); | |
99 | free(plus.ptr); | |
100 | return 0; | |
101 | } | |
102 | ||
d8b7db0a KH |
103 | int cmd_rerere(int argc, const char **argv, const char *prefix) |
104 | { | |
c455c87c | 105 | struct string_list merge_rr = { NULL, 0, 0, 1 }; |
d8b7db0a KH |
106 | int i, fd; |
107 | ||
5b2fd956 SB |
108 | if (argc < 2) |
109 | return rerere(); | |
110 | ||
99caeed0 JN |
111 | if (!strcmp(argv[1], "-h")) |
112 | usage(git_rerere_usage); | |
113 | ||
d8b7db0a KH |
114 | fd = setup_rerere(&merge_rr); |
115 | if (fd < 0) | |
116 | return 0; | |
658f3650 | 117 | |
5b2fd956 | 118 | if (!strcmp(argv[1], "clear")) { |
658f3650 JS |
119 | for (i = 0; i < merge_rr.nr; i++) { |
120 | const char *name = (const char *)merge_rr.items[i].util; | |
90056966 | 121 | if (!has_rerere_resolution(name)) |
658f3650 JS |
122 | unlink_rr_item(name); |
123 | } | |
691f1a28 | 124 | unlink_or_warn(git_path("rr-cache/MERGE_RR")); |
658f3650 JS |
125 | } else if (!strcmp(argv[1], "gc")) |
126 | garbage_collect(&merge_rr); | |
127 | else if (!strcmp(argv[1], "status")) | |
128 | for (i = 0; i < merge_rr.nr; i++) | |
c455c87c | 129 | printf("%s\n", merge_rr.items[i].string); |
658f3650 JS |
130 | else if (!strcmp(argv[1], "diff")) |
131 | for (i = 0; i < merge_rr.nr; i++) { | |
c455c87c | 132 | const char *path = merge_rr.items[i].string; |
658f3650 | 133 | const char *name = (const char *)merge_rr.items[i].util; |
90056966 | 134 | diff_two(rerere_path(name, "preimage"), path, path, path); |
658f3650 JS |
135 | } |
136 | else | |
137 | usage(git_rerere_usage); | |
138 | ||
c455c87c | 139 | string_list_clear(&merge_rr, 1); |
658f3650 JS |
140 | return 0; |
141 | } |