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Support mandatory capabilities 

Add support for marking capability as mandatory for hosting git version
to understand. This is useful for helpers which require various types
of assistance from main git binary.

Signed-off-by: Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ilari Liusvaara 2009-12-09 17:26:28 +02:00 committed by Junio C Hamano
parent bf3c523c3f
commit 28ed5b3524
2 changed files with 23 additions and 7 deletions
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5
Documentation/git-remote-helpers.txt
View File

@ -25,7 +25,10 @@ Commands are given by the caller on the helper's standard input, one per line.
'capabilities'::
Lists the capabilities of the helper, one per line, ending
with a blank line.
with a blank line. Each capability may be preceeded with '*'.
This marks them mandatory for git version using the remote
helper to understand (unknown mandatory capability is fatal
error).
'list'::
Lists the refs, one per line, in the format "<value> <name>

25
transport-helper.c
View File

@ -93,25 +93,38 @@ static struct child_process *get_helper(struct transport *transport)
data->out = xfdopen(helper->out, "r");
while (1) {
const char *capname;
int mandatory = 0;
recvline(data, &buf);
if (!*buf.buf)
break;
if (*buf.buf == '*') {
capname = buf.buf + 1;
mandatory = 1;
} else
capname = buf.buf;
if (debug)
fprintf(stderr, "Debug: Got cap %s\n", buf.buf);
if (!strcmp(buf.buf, "fetch"))
fprintf(stderr, "Debug: Got cap %s\n", capname);
if (!strcmp(capname, "fetch"))
data->fetch = 1;
if (!strcmp(buf.buf, "option"))
else if (!strcmp(capname, "option"))
data->option = 1;
if (!strcmp(buf.buf, "push"))
else if (!strcmp(capname, "push"))
data->push = 1;
if (!strcmp(buf.buf, "import"))
else if (!strcmp(capname, "import"))
data->import = 1;
if (!data->refspecs && !prefixcmp(buf.buf, "refspec ")) {
else if (!data->refspecs && !prefixcmp(capname, "refspec ")) {
ALLOC_GROW(refspecs,
refspec_nr + 1,
refspec_alloc);
refspecs[refspec_nr++] = strdup(buf.buf + strlen("refspec "));
} else if (mandatory) {
die("Unknown madatory capability %s. This remote "
"helper probably needs newer version of Git.\n",
capname);
}
}
if (refspecs) {