check_everything_connected: convert to argv_array
[git/git.git] / connected.c
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1#include "cache.h"
2#include "run-command.h"
3#include "sigchain.h"
4#include "connected.h"
c6807a40 5#include "transport.h"
f96400cb 6
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7int check_everything_connected(sha1_iterate_fn fn, int quiet, void *cb_data)
8{
9 return check_everything_connected_with_transport(fn, quiet, cb_data, NULL);
10}
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11/*
12 * If we feed all the commits we want to verify to this command
13 *
d21c463d 14 * $ git rev-list --objects --stdin --not --all
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15 *
16 * and if it does not error out, that means everything reachable from
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17 * these commits locally exists and is connected to our existing refs.
18 * Note that this does _not_ validate the individual objects.
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19 *
20 * Returns 0 if everything is connected, non-zero otherwise.
21 */
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22static int check_everything_connected_real(sha1_iterate_fn fn,
23 int quiet,
24 void *cb_data,
25 struct transport *transport,
26 const char *shallow_file)
f96400cb 27{
d3180279 28 struct child_process rev_list = CHILD_PROCESS_INIT;
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29 char commit[41];
30 unsigned char sha1[20];
3be89f9b 31 int err = 0;
c6807a40 32 struct packed_git *new_pack = NULL;
26936bfd 33 size_t base_len;
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34
35 if (fn(cb_data, sha1))
36 return err;
37
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38 if (transport && transport->smart_options &&
39 transport->smart_options->self_contained_and_connected &&
40 transport->pack_lockfile &&
26936bfd 41 strip_suffix(transport->pack_lockfile, ".keep", &base_len)) {
c6807a40 42 struct strbuf idx_file = STRBUF_INIT;
26936bfd 43 strbuf_add(&idx_file, transport->pack_lockfile, base_len);
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44 strbuf_addstr(&idx_file, ".idx");
45 new_pack = add_packed_git(idx_file.buf, idx_file.len, 1);
46 strbuf_release(&idx_file);
47 }
48
614db3e2 49 if (shallow_file) {
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50 argv_array_push(&rev_list.args, "--shallow-file");
51 argv_array_push(&rev_list.args, shallow_file);
614db3e2 52 }
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53 argv_array_push(&rev_list.args,"rev-list");
54 argv_array_push(&rev_list.args, "--objects");
55 argv_array_push(&rev_list.args, "--stdin");
56 argv_array_push(&rev_list.args, "--not");
57 argv_array_push(&rev_list.args, "--all");
58 argv_array_push(&rev_list.args, "--quiet");
f96400cb 59
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60 rev_list.git_cmd = 1;
61 rev_list.in = -1;
62 rev_list.no_stdout = 1;
63 rev_list.no_stderr = quiet;
64 if (start_command(&rev_list))
65 return error(_("Could not run 'git rev-list'"));
66
67 sigchain_push(SIGPIPE, SIG_IGN);
68
69 commit[40] = '\n';
70 do {
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71 /*
72 * If index-pack already checked that:
73 * - there are no dangling pointers in the new pack
74 * - the pack is self contained
75 * Then if the updated ref is in the new pack, then we
76 * are sure the ref is good and not sending it to
77 * rev-list for verification.
78 */
79 if (new_pack && find_pack_entry_one(sha1, new_pack))
80 continue;
81
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82 memcpy(commit, sha1_to_hex(sha1), 40);
83 if (write_in_full(rev_list.in, commit, 41) < 0) {
84 if (errno != EPIPE && errno != EINVAL)
5cc026e2 85 error_errno(_("failed write to rev-list"));
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86 err = -1;
87 break;
88 }
89 } while (!fn(cb_data, sha1));
90
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91 if (close(rev_list.in))
92 err = error_errno(_("failed to close rev-list's stdin"));
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93
94 sigchain_pop(SIGPIPE);
95 return finish_command(&rev_list) || err;
96}
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97
98int check_everything_connected_with_transport(sha1_iterate_fn fn,
99 int quiet,
100 void *cb_data,
101 struct transport *transport)
102{
103 return check_everything_connected_real(fn, quiet, cb_data,
104 transport, NULL);
105}
106
107int check_shallow_connected(sha1_iterate_fn fn, int quiet, void *cb_data,
108 const char *shallow_file)
109{
110 return check_everything_connected_real(fn, quiet, cb_data,
111 NULL, shallow_file);
112}