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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" |
b14ed5ad | 8 | #include "promisor-remote.h" |
f96400cb JH |
9 | |
10 | /* | |
11 | * If we feed all the commits we want to verify to this command | |
12 | * | |
d21c463d | 13 | * $ git rev-list --objects --stdin --not --all |
f96400cb JH |
14 | * |
15 | * and if it does not error out, that means everything reachable from | |
d21c463d JH |
16 | * these commits locally exists and is connected to our existing refs. |
17 | * Note that this does _not_ validate the individual objects. | |
f96400cb JH |
18 | * |
19 | * Returns 0 if everything is connected, non-zero otherwise. | |
20 | */ | |
6ccac9ee | 21 | int check_connected(oid_iterate_fn fn, void *cb_data, |
7043c707 | 22 | struct check_connected_options *opt) |
f96400cb | 23 | { |
d3180279 | 24 | struct child_process rev_list = CHILD_PROCESS_INIT; |
24b75faf | 25 | FILE *rev_list_in; |
7043c707 | 26 | struct check_connected_options defaults = CHECK_CONNECTED_INIT; |
9fec7b21 | 27 | const struct object_id *oid; |
3be89f9b | 28 | int err = 0; |
c6807a40 | 29 | struct packed_git *new_pack = NULL; |
7043c707 | 30 | struct transport *transport; |
26936bfd | 31 | size_t base_len; |
f96400cb | 32 | |
7043c707 JK |
33 | if (!opt) |
34 | opt = &defaults; | |
35 | transport = opt->transport; | |
36 | ||
9fec7b21 PS |
37 | oid = fn(cb_data); |
38 | if (!oid) { | |
e0331849 JK |
39 | if (opt->err_fd) |
40 | close(opt->err_fd); | |
f96400cb | 41 | return err; |
e0331849 | 42 | } |
f96400cb | 43 | |
c6807a40 NTND |
44 | if (transport && transport->smart_options && |
45 | transport->smart_options->self_contained_and_connected && | |
9da69a65 JT |
46 | transport->pack_lockfiles.nr == 1 && |
47 | strip_suffix(transport->pack_lockfiles.items[0].string, | |
48 | ".keep", &base_len)) { | |
c6807a40 | 49 | struct strbuf idx_file = STRBUF_INIT; |
9da69a65 JT |
50 | strbuf_add(&idx_file, transport->pack_lockfiles.items[0].string, |
51 | base_len); | |
c6807a40 NTND |
52 | strbuf_addstr(&idx_file, ".idx"); |
53 | new_pack = add_packed_git(idx_file.buf, idx_file.len, 1); | |
54 | strbuf_release(&idx_file); | |
55 | } | |
56 | ||
2b98478c | 57 | if (has_promisor_remote()) { |
dfa33a29 JS |
58 | /* |
59 | * For partial clones, we don't want to have to do a regular | |
60 | * connectivity check because we have to enumerate and exclude | |
61 | * all promisor objects (slow), and then the connectivity check | |
62 | * itself becomes a no-op because in a partial clone every | |
63 | * object is a promisor object. Instead, just make sure we | |
50033772 JT |
64 | * received, in a promisor packfile, the objects pointed to by |
65 | * each wanted ref. | |
b739d971 DS |
66 | * |
67 | * Before checking for promisor packs, be sure we have the | |
68 | * latest pack-files loaded into memory. | |
dfa33a29 | 69 | */ |
b739d971 | 70 | reprepare_packed_git(the_repository); |
dfa33a29 | 71 | do { |
50033772 JT |
72 | struct packed_git *p; |
73 | ||
74 | for (p = get_all_packs(the_repository); p; p = p->next) { | |
75 | if (!p->pack_promisor) | |
76 | continue; | |
9fec7b21 | 77 | if (find_pack_entry_one(oid->hash, p)) |
50033772 JT |
78 | goto promisor_pack_found; |
79 | } | |
2b98478c JT |
80 | /* |
81 | * Fallback to rev-list with oid and the rest of the | |
82 | * object IDs provided by fn. | |
83 | */ | |
84 | goto no_promisor_pack_found; | |
50033772 JT |
85 | promisor_pack_found: |
86 | ; | |
9fec7b21 | 87 | } while ((oid = fn(cb_data)) != NULL); |
dfa33a29 JS |
88 | return 0; |
89 | } | |
90 | ||
2b98478c | 91 | no_promisor_pack_found: |
7043c707 | 92 | if (opt->shallow_file) { |
ef8d7ac4 JK |
93 | strvec_push(&rev_list.args, "--shallow-file"); |
94 | strvec_push(&rev_list.args, opt->shallow_file); | |
614db3e2 | 95 | } |
ef8d7ac4 JK |
96 | strvec_push(&rev_list.args,"rev-list"); |
97 | strvec_push(&rev_list.args, "--objects"); | |
98 | strvec_push(&rev_list.args, "--stdin"); | |
b14ed5ad | 99 | if (has_promisor_remote()) |
ef8d7ac4 | 100 | strvec_push(&rev_list.args, "--exclude-promisor-objects"); |
cf1e7c07 | 101 | if (!opt->is_deepening_fetch) { |
ef8d7ac4 JK |
102 | strvec_push(&rev_list.args, "--not"); |
103 | strvec_push(&rev_list.args, "--all"); | |
cf1e7c07 | 104 | } |
ef8d7ac4 JK |
105 | strvec_push(&rev_list.args, "--quiet"); |
106 | strvec_push(&rev_list.args, "--alternate-refs"); | |
70d5e2d7 | 107 | if (opt->progress) |
ef8d7ac4 | 108 | strvec_pushf(&rev_list.args, "--progress=%s", |
f6d8942b | 109 | _("Checking connectivity")); |
f96400cb | 110 | |
f96400cb | 111 | rev_list.git_cmd = 1; |
c7c4bdec ÆAB |
112 | if (opt->env) |
113 | strvec_pushv(&rev_list.env_array, opt->env); | |
f96400cb JH |
114 | rev_list.in = -1; |
115 | rev_list.no_stdout = 1; | |
e0331849 JK |
116 | if (opt->err_fd) |
117 | rev_list.err = opt->err_fd; | |
118 | else | |
119 | rev_list.no_stderr = opt->quiet; | |
120 | ||
f96400cb JH |
121 | if (start_command(&rev_list)) |
122 | return error(_("Could not run 'git rev-list'")); | |
123 | ||
124 | sigchain_push(SIGPIPE, SIG_IGN); | |
125 | ||
24b75faf RS |
126 | rev_list_in = xfdopen(rev_list.in, "w"); |
127 | ||
f96400cb | 128 | do { |
c6807a40 NTND |
129 | /* |
130 | * If index-pack already checked that: | |
131 | * - there are no dangling pointers in the new pack | |
132 | * - the pack is self contained | |
133 | * Then if the updated ref is in the new pack, then we | |
134 | * are sure the ref is good and not sending it to | |
135 | * rev-list for verification. | |
136 | */ | |
9fec7b21 | 137 | if (new_pack && find_pack_entry_one(oid->hash, new_pack)) |
c6807a40 NTND |
138 | continue; |
139 | ||
9fec7b21 | 140 | if (fprintf(rev_list_in, "%s\n", oid_to_hex(oid)) < 0) |
f96400cb | 141 | break; |
9fec7b21 | 142 | } while ((oid = fn(cb_data)) != NULL); |
f96400cb | 143 | |
24b75faf RS |
144 | if (ferror(rev_list_in) || fflush(rev_list_in)) { |
145 | if (errno != EPIPE && errno != EINVAL) | |
146 | error_errno(_("failed write to rev-list")); | |
147 | err = -1; | |
148 | } | |
149 | ||
150 | if (fclose(rev_list_in)) | |
5cc026e2 | 151 | err = error_errno(_("failed to close rev-list's stdin")); |
f96400cb JH |
152 | |
153 | sigchain_pop(SIGPIPE); | |
154 | return finish_command(&rev_list) || err; | |
155 | } |