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Commit | Line | Data |
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f96400cb JH |
1 | #include "cache.h" |
2 | #include "run-command.h" | |
3 | #include "sigchain.h" | |
4 | #include "connected.h" | |
c6807a40 | 5 | #include "transport.h" |
0abe14f6 | 6 | #include "packfile.h" |
f96400cb JH |
7 | |
8 | /* | |
9 | * If we feed all the commits we want to verify to this command | |
10 | * | |
d21c463d | 11 | * $ git rev-list --objects --stdin --not --all |
f96400cb JH |
12 | * |
13 | * and if it does not error out, that means everything reachable from | |
d21c463d JH |
14 | * these commits locally exists and is connected to our existing refs. |
15 | * Note that this does _not_ validate the individual objects. | |
f96400cb JH |
16 | * |
17 | * Returns 0 if everything is connected, non-zero otherwise. | |
18 | */ | |
6ccac9ee | 19 | int check_connected(oid_iterate_fn fn, void *cb_data, |
7043c707 | 20 | struct check_connected_options *opt) |
f96400cb | 21 | { |
d3180279 | 22 | struct child_process rev_list = CHILD_PROCESS_INIT; |
7043c707 | 23 | struct check_connected_options defaults = CHECK_CONNECTED_INIT; |
6ccac9ee | 24 | char commit[GIT_MAX_HEXSZ + 1]; |
25 | struct object_id oid; | |
3be89f9b | 26 | int err = 0; |
c6807a40 | 27 | struct packed_git *new_pack = NULL; |
7043c707 | 28 | struct transport *transport; |
26936bfd | 29 | size_t base_len; |
f96400cb | 30 | |
7043c707 JK |
31 | if (!opt) |
32 | opt = &defaults; | |
33 | transport = opt->transport; | |
34 | ||
6ccac9ee | 35 | if (fn(cb_data, &oid)) { |
e0331849 JK |
36 | if (opt->err_fd) |
37 | close(opt->err_fd); | |
f96400cb | 38 | return err; |
e0331849 | 39 | } |
f96400cb | 40 | |
c6807a40 NTND |
41 | if (transport && transport->smart_options && |
42 | transport->smart_options->self_contained_and_connected && | |
43 | transport->pack_lockfile && | |
26936bfd | 44 | strip_suffix(transport->pack_lockfile, ".keep", &base_len)) { |
c6807a40 | 45 | struct strbuf idx_file = STRBUF_INIT; |
26936bfd | 46 | strbuf_add(&idx_file, transport->pack_lockfile, base_len); |
c6807a40 NTND |
47 | strbuf_addstr(&idx_file, ".idx"); |
48 | new_pack = add_packed_git(idx_file.buf, idx_file.len, 1); | |
49 | strbuf_release(&idx_file); | |
50 | } | |
51 | ||
7043c707 | 52 | if (opt->shallow_file) { |
3be89f9b | 53 | argv_array_push(&rev_list.args, "--shallow-file"); |
7043c707 | 54 | argv_array_push(&rev_list.args, opt->shallow_file); |
614db3e2 | 55 | } |
3be89f9b JK |
56 | argv_array_push(&rev_list.args,"rev-list"); |
57 | argv_array_push(&rev_list.args, "--objects"); | |
58 | argv_array_push(&rev_list.args, "--stdin"); | |
59 | argv_array_push(&rev_list.args, "--not"); | |
60 | argv_array_push(&rev_list.args, "--all"); | |
61 | argv_array_push(&rev_list.args, "--quiet"); | |
70d5e2d7 JK |
62 | if (opt->progress) |
63 | argv_array_pushf(&rev_list.args, "--progress=%s", | |
64 | _("Checking connectivity")); | |
f96400cb | 65 | |
f96400cb | 66 | rev_list.git_cmd = 1; |
526f108a | 67 | rev_list.env = opt->env; |
f96400cb JH |
68 | rev_list.in = -1; |
69 | rev_list.no_stdout = 1; | |
e0331849 JK |
70 | if (opt->err_fd) |
71 | rev_list.err = opt->err_fd; | |
72 | else | |
73 | rev_list.no_stderr = opt->quiet; | |
74 | ||
f96400cb JH |
75 | if (start_command(&rev_list)) |
76 | return error(_("Could not run 'git rev-list'")); | |
77 | ||
78 | sigchain_push(SIGPIPE, SIG_IGN); | |
79 | ||
6ccac9ee | 80 | commit[GIT_SHA1_HEXSZ] = '\n'; |
f96400cb | 81 | do { |
c6807a40 NTND |
82 | /* |
83 | * If index-pack already checked that: | |
84 | * - there are no dangling pointers in the new pack | |
85 | * - the pack is self contained | |
86 | * Then if the updated ref is in the new pack, then we | |
87 | * are sure the ref is good and not sending it to | |
88 | * rev-list for verification. | |
89 | */ | |
6ccac9ee | 90 | if (new_pack && find_pack_entry_one(oid.hash, new_pack)) |
c6807a40 NTND |
91 | continue; |
92 | ||
6ccac9ee | 93 | memcpy(commit, oid_to_hex(&oid), GIT_SHA1_HEXSZ); |
94 | if (write_in_full(rev_list.in, commit, GIT_SHA1_HEXSZ + 1) < 0) { | |
f96400cb | 95 | if (errno != EPIPE && errno != EINVAL) |
5cc026e2 | 96 | error_errno(_("failed write to rev-list")); |
f96400cb JH |
97 | err = -1; |
98 | break; | |
99 | } | |
6ccac9ee | 100 | } while (!fn(cb_data, &oid)); |
f96400cb | 101 | |
5cc026e2 NTND |
102 | if (close(rev_list.in)) |
103 | err = error_errno(_("failed to close rev-list's stdin")); | |
f96400cb JH |
104 | |
105 | sigchain_pop(SIGPIPE); | |
106 | return finish_command(&rev_list) || err; | |
107 | } |