2 #include "run-command.h"
8 * If we feed all the commits we want to verify to this command
10 * $ git rev-list --objects --stdin --not --all
12 * and if it does not error out, that means everything reachable from
13 * these commits locally exists and is connected to our existing refs.
14 * Note that this does _not_ validate the individual objects.
16 * Returns 0 if everything is connected, non-zero otherwise.
18 int check_connected(sha1_iterate_fn fn
, void *cb_data
,
19 struct check_connected_options
*opt
)
21 struct child_process rev_list
= CHILD_PROCESS_INIT
;
22 struct check_connected_options defaults
= CHECK_CONNECTED_INIT
;
24 unsigned char sha1
[20];
26 struct packed_git
*new_pack
= NULL
;
27 struct transport
*transport
;
32 transport
= opt
->transport
;
34 if (fn(cb_data
, sha1
))
37 if (transport
&& transport
->smart_options
&&
38 transport
->smart_options
->self_contained_and_connected
&&
39 transport
->pack_lockfile
&&
40 strip_suffix(transport
->pack_lockfile
, ".keep", &base_len
)) {
41 struct strbuf idx_file
= STRBUF_INIT
;
42 strbuf_add(&idx_file
, transport
->pack_lockfile
, base_len
);
43 strbuf_addstr(&idx_file
, ".idx");
44 new_pack
= add_packed_git(idx_file
.buf
, idx_file
.len
, 1);
45 strbuf_release(&idx_file
);
48 if (opt
->shallow_file
) {
49 argv_array_push(&rev_list
.args
, "--shallow-file");
50 argv_array_push(&rev_list
.args
, opt
->shallow_file
);
52 argv_array_push(&rev_list
.args
,"rev-list");
53 argv_array_push(&rev_list
.args
, "--objects");
54 argv_array_push(&rev_list
.args
, "--stdin");
55 argv_array_push(&rev_list
.args
, "--not");
56 argv_array_push(&rev_list
.args
, "--all");
57 argv_array_push(&rev_list
.args
, "--quiet");
61 rev_list
.no_stdout
= 1;
62 rev_list
.no_stderr
= opt
->quiet
;
63 if (start_command(&rev_list
))
64 return error(_("Could not run 'git rev-list'"));
66 sigchain_push(SIGPIPE
, SIG_IGN
);
71 * If index-pack already checked that:
72 * - there are no dangling pointers in the new pack
73 * - the pack is self contained
74 * Then if the updated ref is in the new pack, then we
75 * are sure the ref is good and not sending it to
76 * rev-list for verification.
78 if (new_pack
&& find_pack_entry_one(sha1
, new_pack
))
81 memcpy(commit
, sha1_to_hex(sha1
), 40);
82 if (write_in_full(rev_list
.in
, commit
, 41) < 0) {
83 if (errno
!= EPIPE
&& errno
!= EINVAL
)
84 error_errno(_("failed write to rev-list"));
88 } while (!fn(cb_data
, sha1
));
90 if (close(rev_list
.in
))
91 err
= error_errno(_("failed to close rev-list's stdin"));
93 sigchain_pop(SIGPIPE
);
94 return finish_command(&rev_list
) || err
;