mirror of
https://github.com/git/git
synced 2024-11-05 18:59:29 +00:00
00436bf1b1
Initialize archivers as soon as possible when running git-archive.
Various non-obvious behavior depends on having the archivers
initialized, such as determining the desired archival format from the
provided filename.
Since 08716b3c11 ("archive: refactor file extension format-guessing",
2011-06-21), archive_format_from_filename() has used the registered
archivers to match filenames (provided via --output) to archival
formats. However, when git-archive is executed with --remote, format
detection happens before the archivers have been registered. This causes
archives from remotes to always be generated as TAR files, regardless of
the actual filename (unless an explicit --format is provided).
This patch fixes that behavior; archival format is determined properly
from the output filename, even when --remote is used.
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
133 lines
3.1 KiB
C
133 lines
3.1 KiB
C
/*
|
|
* Copyright (c) 2006 Franck Bui-Huu
|
|
*/
|
|
#include "cache.h"
|
|
#include "builtin.h"
|
|
#include "archive.h"
|
|
#include "pkt-line.h"
|
|
#include "sideband.h"
|
|
#include "run-command.h"
|
|
#include "argv-array.h"
|
|
|
|
static const char upload_archive_usage[] =
|
|
"git upload-archive <repo>";
|
|
|
|
static const char deadchild[] =
|
|
"git upload-archive: archiver died with error";
|
|
|
|
#define MAX_ARGS (64)
|
|
|
|
int cmd_upload_archive_writer(int argc, const char **argv, const char *prefix)
|
|
{
|
|
struct argv_array sent_argv = ARGV_ARRAY_INIT;
|
|
const char *arg_cmd = "argument ";
|
|
|
|
if (argc != 2 || !strcmp(argv[1], "-h"))
|
|
usage(upload_archive_usage);
|
|
|
|
if (!enter_repo(argv[1], 0))
|
|
die("'%s' does not appear to be a git repository", argv[1]);
|
|
|
|
init_archivers();
|
|
|
|
/* put received options in sent_argv[] */
|
|
argv_array_push(&sent_argv, "git-upload-archive");
|
|
for (;;) {
|
|
char *buf = packet_read_line(0, NULL);
|
|
if (!buf)
|
|
break; /* got a flush */
|
|
if (sent_argv.argc > MAX_ARGS)
|
|
die("Too many options (>%d)", MAX_ARGS - 1);
|
|
|
|
if (!starts_with(buf, arg_cmd))
|
|
die("'argument' token or flush expected");
|
|
argv_array_push(&sent_argv, buf + strlen(arg_cmd));
|
|
}
|
|
|
|
/* parse all options sent by the client */
|
|
return write_archive(sent_argv.argc, sent_argv.argv, prefix,
|
|
the_repository, NULL, 1);
|
|
}
|
|
|
|
__attribute__((format (printf, 1, 2)))
|
|
static void error_clnt(const char *fmt, ...)
|
|
{
|
|
struct strbuf buf = STRBUF_INIT;
|
|
va_list params;
|
|
|
|
va_start(params, fmt);
|
|
strbuf_vaddf(&buf, fmt, params);
|
|
va_end(params);
|
|
send_sideband(1, 3, buf.buf, buf.len, LARGE_PACKET_MAX);
|
|
die("sent error to the client: %s", buf.buf);
|
|
}
|
|
|
|
static ssize_t process_input(int child_fd, int band)
|
|
{
|
|
char buf[16384];
|
|
ssize_t sz = read(child_fd, buf, sizeof(buf));
|
|
if (sz < 0) {
|
|
if (errno != EAGAIN && errno != EINTR)
|
|
error_clnt("read error: %s\n", strerror(errno));
|
|
return sz;
|
|
}
|
|
send_sideband(1, band, buf, sz, LARGE_PACKET_MAX);
|
|
return sz;
|
|
}
|
|
|
|
int cmd_upload_archive(int argc, const char **argv, const char *prefix)
|
|
{
|
|
struct child_process writer = { argv };
|
|
|
|
if (argc == 2 && !strcmp(argv[1], "-h"))
|
|
usage(upload_archive_usage);
|
|
|
|
/*
|
|
* Set up sideband subprocess.
|
|
*
|
|
* We (parent) monitor and read from child, sending its fd#1 and fd#2
|
|
* multiplexed out to our fd#1. If the child dies, we tell the other
|
|
* end over channel #3.
|
|
*/
|
|
argv[0] = "upload-archive--writer";
|
|
writer.out = writer.err = -1;
|
|
writer.git_cmd = 1;
|
|
if (start_command(&writer)) {
|
|
int err = errno;
|
|
packet_write_fmt(1, "NACK unable to spawn subprocess\n");
|
|
die("upload-archive: %s", strerror(err));
|
|
}
|
|
|
|
packet_write_fmt(1, "ACK\n");
|
|
packet_flush(1);
|
|
|
|
while (1) {
|
|
struct pollfd pfd[2];
|
|
|
|
pfd[0].fd = writer.out;
|
|
pfd[0].events = POLLIN;
|
|
pfd[1].fd = writer.err;
|
|
pfd[1].events = POLLIN;
|
|
if (poll(pfd, 2, -1) < 0) {
|
|
if (errno != EINTR) {
|
|
error_errno("poll failed resuming");
|
|
sleep(1);
|
|
}
|
|
continue;
|
|
}
|
|
if (pfd[1].revents & POLLIN)
|
|
/* Status stream ready */
|
|
if (process_input(pfd[1].fd, 2))
|
|
continue;
|
|
if (pfd[0].revents & POLLIN)
|
|
/* Data stream ready */
|
|
if (process_input(pfd[0].fd, 1))
|
|
continue;
|
|
|
|
if (finish_command(&writer))
|
|
error_clnt("%s", deadchild);
|
|
packet_flush(1);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|