From: Julian Phillips Date: Tue, 13 Feb 2007 01:21:39 GMT Subject: [PATCH] Allow fetch--tool to read from stdin Message-ID: <11713297013179-git-send-email-julian@quantumfyre.co.uk> In-Reply-To: <11713297014015-git-send-email-julian@quantumfyre.co.uk> 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 --- builtin-fetch--tool.c | 24 ++++++++++++++++++++++-- 1 files changed, 22 insertions(+), 2 deletions(-) diff --git a/builtin-fetch--tool.c b/builtin-fetch--tool.c index 3090ffe..619ceb0 100644 --- a/builtin-fetch--tool.c +++ b/builtin-fetch--tool.c @@ -2,6 +2,20 @@ #include "refs.h" #include "commit.h" +static char *get_stdin(void) +{ +#define CHUNK_SIZE (1048576) + 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) { fprintf(stderr, " %s: %s\n", type, @@ -463,12 +477,18 @@ int cmd_fetch__tool(int argc, const char **argv, const char *prefix) if (!strcmp("parse-reflist", argv[1])) { if (argc != 3) return error("parse-reflist takes 1 arg"); - return parse_reflist(argv[2]); + const char *reflist = argv[2]; + if (!strcmp(reflist, "-")) + reflist = get_stdin(); + return parse_reflist(reflist); } if (!strcmp("expand-refs-wildcard", argv[1])) { if (argc < 4) return error("expand-refs-wildcard takes at least 2 args"); - return expand_refs_wildcard(argv[2], argc - 3, argv + 3); + const char *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]); -- 1.4.4.4