git-archive: add --output=<file> to send output to a file

When archiving a repository there is no way to specify a file as output.
This patch adds a new option "--output" that redirects the output to a
file instead of stdout.

Signed-off-by: Carlos Manuel Duclos Vergara <carlos.duclos@nokia.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Carlos Manuel Duclos Vergara
2009-02-16 18:20:25 +01:00
committed by Junio C Hamano
parent 734cd5726c
commit aec0c1bbfb
3 changed files with 31 additions and 0 deletions

View File

@ -239,6 +239,19 @@ static void parse_treeish_arg(const char **argv,
ar_args->time = archive_time;
}
static void create_output_file(const char *output_file)
{
int output_fd = open(output_file, O_CREAT | O_WRONLY | O_TRUNC, 0666);
if (output_fd < 0)
die("could not create archive file: %s ", output_file);
if (output_fd != 1) {
if (dup2(output_fd, 1) < 0)
die("could not redirect output");
else
close(output_fd);
}
}
#define OPT__COMPR(s, v, h, p) \
{ OPTION_SET_INT, (s), NULL, (v), NULL, (h), \
PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, (p) }
@ -253,6 +266,7 @@ static int parse_archive_args(int argc, const char **argv,
const char *base = NULL;
const char *remote = NULL;
const char *exec = NULL;
const char *output = NULL;
int compression_level = -1;
int verbose = 0;
int i;
@ -262,6 +276,8 @@ static int parse_archive_args(int argc, const char **argv,
OPT_STRING(0, "format", &format, "fmt", "archive format"),
OPT_STRING(0, "prefix", &base, "prefix",
"prepend prefix to each pathname in the archive"),
OPT_STRING(0, "output", &output, "file",
"write the archive to this file"),
OPT__VERBOSE(&verbose),
OPT__COMPR('0', &compression_level, "store only", 0),
OPT__COMPR('1', &compression_level, "compress faster", 1),
@ -294,6 +310,9 @@ static int parse_archive_args(int argc, const char **argv,
if (!base)
base = "";
if (output)
create_output_file(output);
if (list) {
for (i = 0; i < ARRAY_SIZE(archivers); i++)
printf("%s\n", archivers[i].name);