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Allow fetch--tool to read from stdin

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If the reflist is "-" then read the reflist data from stdin instead,
this will allow the passing of more than 128K of reflist data - which
won't fit in the environment passed by execve.

Signed-off-by: Julian Phillips <julian@quantumfyre.co.uk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Julian Phillips 2007-02-13 01:21:39 +00:00 committed by Junio C Hamano
parent 86551586da
commit 46ce8b6d2a
1 changed files with 25 additions and 2 deletions
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27
builtin-fetch--tool.c
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@ -2,6 +2,21 @@
#include "refs.h" #include "refs.h"
#include "commit.h" #include "commit.h"
#define CHUNK_SIZE (1048576)
static char *get_stdin(void)
{
char *data = xmalloc(CHUNK_SIZE);
int offset = 0, read = 0;
read = xread(0, data, CHUNK_SIZE);
while (read == CHUNK_SIZE) {
offset += CHUNK_SIZE;
data = xrealloc(data, offset + CHUNK_SIZE);
read = xread(0, data + offset, CHUNK_SIZE);
}
return data;
}
static void show_new(char *type, unsigned char *sha1_new) static void show_new(char *type, unsigned char *sha1_new)
{ {
fprintf(stderr, " %s: %s\n", type, fprintf(stderr, " %s: %s\n", type,
@ -461,14 +476,22 @@ int cmd_fetch__tool(int argc, const char **argv, const char *prefix)
return result; return result;
} }
if (!strcmp("parse-reflist", argv[1])) { if (!strcmp("parse-reflist", argv[1])) {
const char *reflist;
if (argc != 3) if (argc != 3)
return error("parse-reflist takes 1 arg"); return error("parse-reflist takes 1 arg");
return parse_reflist(argv[2]); reflist = argv[2];
if (!strcmp(reflist, "-"))
reflist = get_stdin();
return parse_reflist(reflist);
} }
if (!strcmp("expand-refs-wildcard", argv[1])) { if (!strcmp("expand-refs-wildcard", argv[1])) {
const char *reflist;
if (argc < 4) if (argc < 4)
return error("expand-refs-wildcard takes at least 2 args"); return error("expand-refs-wildcard takes at least 2 args");
return expand_refs_wildcard(argv[2], argc - 3, argv + 3); reflist = argv[2];
if (!strcmp(reflist, "-"))
reflist = get_stdin();
return expand_refs_wildcard(reflist, argc - 3, argv + 3);
} }
return error("Unknown subcommand: %s", argv[1]); return error("Unknown subcommand: %s", argv[1]);