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Re: [PATCH] git-archive: add --output=<file> to send output to a file

From
Junio C Hamano <gitster@pobox.com>
Date
Feb 25, 2009, 06:13 UTC
Message-ID
<7v4oyjdoy2.fsf@gitster.siamese.dyndns.org>
In-Reply-To
<599636D7828020419E3AB2DE5CCC8130036BF8B1E4@NOK-EUMSG-02.mgdnok.nokia.com>

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>
---
 * I've fixed it up slightly; especially the tests, which were not making
   sure the results match what are expected.
   Thanks.
 Documentation/git-archive.txt |    3 +++
 archive.c                     |   19 +++++++++++++++++++
 t/t5000-tar-tree.sh           |    8 ++++++++
 3 files changed, 30 insertions(+), 0 deletions(-)
diff --git a/Documentation/git-archive.txt b/Documentation/git-archive.txt
index 41cbf9c..5bde197 100644
--- a/Documentation/git-archive.txt
+++ b/Documentation/git-archive.txt
@@ -47,6 +47,9 @@ OPTIONS
 --prefix=<prefix>/::
 	Prepend <prefix>/ to each filename in the archive.
 
+--output=<file>::
+	Write the archive to <file> instead of stdout.
+
 <extra>::
 	This can be any options that the archiver backend understand.
 	See next section.
diff --git a/archive.c b/archive.c
index e6de039..c6aea83 100644
--- a/archive.c
+++ b/archive.c
@@ -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);
diff --git a/t/t5000-tar-tree.sh b/t/t5000-tar-tree.sh
index c942c8b..b7e3628 100755
--- a/t/t5000-tar-tree.sh
+++ b/t/t5000-tar-tree.sh
@@ -86,6 +86,10 @@ test_expect_success \
     'git archive vs. the same in a bare repo' \
     'test_cmp b.tar b3.tar'
 
+test_expect_success 'git archive with --output' \
+    'git archive --output=b4.tar HEAD &&
+    test_cmp b.tar b4.tar'
+
 test_expect_success \
     'validate file modification time' \
     'mkdir extract &&
@@ -172,6 +176,10 @@ test_expect_success \
     'git archive --format=zip vs. the same in a bare repo' \
     'test_cmp d.zip d1.zip'
 
+test_expect_success 'git archive --format=zip with --output' \
+    'git archive --format=zip --output=d2.zip HEAD &&
+    test_cmp d.zip d2.zip'
+
 $UNZIP -v >/dev/null 2>&1
 if [ $? -eq 127 ]; then
 	echo "Skipping ZIP tests, because unzip was not found"
-- 
1.6.2.rc2
Previous: carlos.duclos@nokia.com
Message 2 of 2 in “git-archive: Add new option "--output" to write archive to a file instead of stdout.”
  1. git-archive: Add new option "--output" to write archive to a file instead of stdout.carlos.duclos@nokia.com, Feb 23, 2009
  2. Junio C HamanoFeb 25, 2009

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