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f96400cb | 1 | #include "cache.h" |
dfa33a29 | 2 | #include "object-store.h" |
f96400cb JH |
3 | #include "run-command.h" |
4 | #include "sigchain.h" | |
5 | #include "connected.h" | |
c6807a40 | 6 | #include "transport.h" |
0abe14f6 | 7 | #include "packfile.h" |
f96400cb JH |
8 | |
9 | /* | |
10 | * If we feed all the commits we want to verify to this command | |
11 | * | |
d21c463d | 12 | * $ git rev-list --objects --stdin --not --all |
f96400cb JH |
13 | * |
14 | * and if it does not error out, that means everything reachable from | |
d21c463d JH |
15 | * these commits locally exists and is connected to our existing refs. |
16 | * Note that this does _not_ validate the individual objects. | |
f96400cb JH |
17 | * |
18 | * Returns 0 if everything is connected, non-zero otherwise. | |
19 | */ | |
6ccac9ee | 20 | int check_connected(oid_iterate_fn fn, void *cb_data, |
7043c707 | 21 | struct check_connected_options *opt) |
f96400cb | 22 | { |
d3180279 | 23 | struct child_process rev_list = CHILD_PROCESS_INIT; |
7043c707 | 24 | struct check_connected_options defaults = CHECK_CONNECTED_INIT; |
6ccac9ee | 25 | char commit[GIT_MAX_HEXSZ + 1]; |
26 | struct object_id oid; | |
3be89f9b | 27 | int err = 0; |
c6807a40 | 28 | struct packed_git *new_pack = NULL; |
7043c707 | 29 | struct transport *transport; |
26936bfd | 30 | size_t base_len; |
f96400cb | 31 | |
7043c707 JK |
32 | if (!opt) |
33 | opt = &defaults; | |
34 | transport = opt->transport; | |
35 | ||
6ccac9ee | 36 | if (fn(cb_data, &oid)) { |
e0331849 JK |
37 | if (opt->err_fd) |
38 | close(opt->err_fd); | |
f96400cb | 39 | return err; |
e0331849 | 40 | } |
f96400cb | 41 | |
c6807a40 NTND |
42 | if (transport && transport->smart_options && |
43 | transport->smart_options->self_contained_and_connected && | |
44 | transport->pack_lockfile && | |
26936bfd | 45 | strip_suffix(transport->pack_lockfile, ".keep", &base_len)) { |
c6807a40 | 46 | struct strbuf idx_file = STRBUF_INIT; |
26936bfd | 47 | strbuf_add(&idx_file, transport->pack_lockfile, base_len); |
c6807a40 NTND |
48 | strbuf_addstr(&idx_file, ".idx"); |
49 | new_pack = add_packed_git(idx_file.buf, idx_file.len, 1); | |
50 | strbuf_release(&idx_file); | |
51 | } | |
52 | ||
dfa33a29 JS |
53 | if (opt->check_refs_only) { |
54 | /* | |
55 | * For partial clones, we don't want to have to do a regular | |
56 | * connectivity check because we have to enumerate and exclude | |
57 | * all promisor objects (slow), and then the connectivity check | |
58 | * itself becomes a no-op because in a partial clone every | |
59 | * object is a promisor object. Instead, just make sure we | |
60 | * received the objects pointed to by each wanted ref. | |
61 | */ | |
62 | do { | |
63 | if (!repo_has_object_file(the_repository, &oid)) | |
64 | return 1; | |
65 | } while (!fn(cb_data, &oid)); | |
66 | return 0; | |
67 | } | |
68 | ||
7043c707 | 69 | if (opt->shallow_file) { |
3be89f9b | 70 | argv_array_push(&rev_list.args, "--shallow-file"); |
7043c707 | 71 | argv_array_push(&rev_list.args, opt->shallow_file); |
614db3e2 | 72 | } |
3be89f9b JK |
73 | argv_array_push(&rev_list.args,"rev-list"); |
74 | argv_array_push(&rev_list.args, "--objects"); | |
75 | argv_array_push(&rev_list.args, "--stdin"); | |
acb0c572 JH |
76 | if (repository_format_partial_clone) |
77 | argv_array_push(&rev_list.args, "--exclude-promisor-objects"); | |
cf1e7c07 JT |
78 | if (!opt->is_deepening_fetch) { |
79 | argv_array_push(&rev_list.args, "--not"); | |
80 | argv_array_push(&rev_list.args, "--all"); | |
81 | } | |
3be89f9b | 82 | argv_array_push(&rev_list.args, "--quiet"); |
39b44ba7 | 83 | argv_array_push(&rev_list.args, "--alternate-refs"); |
70d5e2d7 JK |
84 | if (opt->progress) |
85 | argv_array_pushf(&rev_list.args, "--progress=%s", | |
86 | _("Checking connectivity")); | |
f96400cb | 87 | |
f96400cb | 88 | rev_list.git_cmd = 1; |
526f108a | 89 | rev_list.env = opt->env; |
f96400cb JH |
90 | rev_list.in = -1; |
91 | rev_list.no_stdout = 1; | |
e0331849 JK |
92 | if (opt->err_fd) |
93 | rev_list.err = opt->err_fd; | |
94 | else | |
95 | rev_list.no_stderr = opt->quiet; | |
96 | ||
f96400cb JH |
97 | if (start_command(&rev_list)) |
98 | return error(_("Could not run 'git rev-list'")); | |
99 | ||
100 | sigchain_push(SIGPIPE, SIG_IGN); | |
101 | ||
6ccac9ee | 102 | commit[GIT_SHA1_HEXSZ] = '\n'; |
f96400cb | 103 | do { |
c6807a40 NTND |
104 | /* |
105 | * If index-pack already checked that: | |
106 | * - there are no dangling pointers in the new pack | |
107 | * - the pack is self contained | |
108 | * Then if the updated ref is in the new pack, then we | |
109 | * are sure the ref is good and not sending it to | |
110 | * rev-list for verification. | |
111 | */ | |
6ccac9ee | 112 | if (new_pack && find_pack_entry_one(oid.hash, new_pack)) |
c6807a40 NTND |
113 | continue; |
114 | ||
6ccac9ee | 115 | memcpy(commit, oid_to_hex(&oid), GIT_SHA1_HEXSZ); |
116 | if (write_in_full(rev_list.in, commit, GIT_SHA1_HEXSZ + 1) < 0) { | |
f96400cb | 117 | if (errno != EPIPE && errno != EINVAL) |
5cc026e2 | 118 | error_errno(_("failed write to rev-list")); |
f96400cb JH |
119 | err = -1; |
120 | break; | |
121 | } | |
6ccac9ee | 122 | } while (!fn(cb_data, &oid)); |
f96400cb | 123 | |
5cc026e2 NTND |
124 | if (close(rev_list.in)) |
125 | err = error_errno(_("failed to close rev-list's stdin")); | |
f96400cb JH |
126 | |
127 | sigchain_pop(SIGPIPE); | |
128 | return finish_command(&rev_list) || err; | |
129 | } |