Merge branch 'es/doc-worktree-guessremote-config'
[git.git] / connected.c
blob1bba888eff90a23e586807fd02b274b8e7fac097
1 #include "cache.h"
2 #include "run-command.h"
3 #include "sigchain.h"
4 #include "connected.h"
5 #include "transport.h"
6 #include "packfile.h"
8 /*
9 * If we feed all the commits we want to verify to this command
11 * $ git rev-list --objects --stdin --not --all
13 * and if it does not error out, that means everything reachable from
14 * these commits locally exists and is connected to our existing refs.
15 * Note that this does _not_ validate the individual objects.
17 * Returns 0 if everything is connected, non-zero otherwise.
19 int check_connected(oid_iterate_fn fn, void *cb_data,
20 struct check_connected_options *opt)
22 struct child_process rev_list = CHILD_PROCESS_INIT;
23 struct check_connected_options defaults = CHECK_CONNECTED_INIT;
24 char commit[GIT_MAX_HEXSZ + 1];
25 struct object_id oid;
26 int err = 0;
27 struct packed_git *new_pack = NULL;
28 struct transport *transport;
29 size_t base_len;
31 if (!opt)
32 opt = &defaults;
33 transport = opt->transport;
35 if (fn(cb_data, &oid)) {
36 if (opt->err_fd)
37 close(opt->err_fd);
38 return err;
41 if (transport && transport->smart_options &&
42 transport->smart_options->self_contained_and_connected &&
43 transport->pack_lockfile &&
44 strip_suffix(transport->pack_lockfile, ".keep", &base_len)) {
45 struct strbuf idx_file = STRBUF_INIT;
46 strbuf_add(&idx_file, transport->pack_lockfile, base_len);
47 strbuf_addstr(&idx_file, ".idx");
48 new_pack = add_packed_git(idx_file.buf, idx_file.len, 1);
49 strbuf_release(&idx_file);
52 if (opt->shallow_file) {
53 argv_array_push(&rev_list.args, "--shallow-file");
54 argv_array_push(&rev_list.args, opt->shallow_file);
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 if (repository_format_partial_clone)
60 argv_array_push(&rev_list.args, "--exclude-promisor-objects");
61 if (!opt->is_deepening_fetch) {
62 argv_array_push(&rev_list.args, "--not");
63 argv_array_push(&rev_list.args, "--all");
65 argv_array_push(&rev_list.args, "--quiet");
66 if (opt->progress)
67 argv_array_pushf(&rev_list.args, "--progress=%s",
68 _("Checking connectivity"));
70 rev_list.git_cmd = 1;
71 rev_list.env = opt->env;
72 rev_list.in = -1;
73 rev_list.no_stdout = 1;
74 if (opt->err_fd)
75 rev_list.err = opt->err_fd;
76 else
77 rev_list.no_stderr = opt->quiet;
79 if (start_command(&rev_list))
80 return error(_("Could not run 'git rev-list'"));
82 sigchain_push(SIGPIPE, SIG_IGN);
84 commit[GIT_SHA1_HEXSZ] = '\n';
85 do {
87 * If index-pack already checked that:
88 * - there are no dangling pointers in the new pack
89 * - the pack is self contained
90 * Then if the updated ref is in the new pack, then we
91 * are sure the ref is good and not sending it to
92 * rev-list for verification.
94 if (new_pack && find_pack_entry_one(oid.hash, new_pack))
95 continue;
97 memcpy(commit, oid_to_hex(&oid), GIT_SHA1_HEXSZ);
98 if (write_in_full(rev_list.in, commit, GIT_SHA1_HEXSZ + 1) < 0) {
99 if (errno != EPIPE && errno != EINVAL)
100 error_errno(_("failed write to rev-list"));
101 err = -1;
102 break;
104 } while (!fn(cb_data, &oid));
106 if (close(rev_list.in))
107 err = error_errno(_("failed to close rev-list's stdin"));
109 sigchain_pop(SIGPIPE);
110 return finish_command(&rev_list) || err;