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[PATCH v8 09/16] Allow reading svn dumps from files via file:// urls

From
Florian Achleitner <florian.achleitner.2.6.31@gmail.com>
Date
Sep 19, 2012, 15:21 UTC
Message-ID
<1348068090-31988-10-git-send-email-florian.achleitner.2.6.31@gmail.com>
In-Reply-To
<1348068090-31988-9-git-send-email-florian.achleitner.2.6.31@gmail.com>

For testing as well as for importing large, already available dumps, it's useful to bypass svnrdump and replay the svndump from a file directly.

Add support for file:// urls in the remote url, e.g.
  svn::file:///path/to/dump

When the remote helper finds an url starting with file:// it tries to open that file instead of invoking svnrdump.

Signed-off-by: Florian Achleitner <florian.achleitner.2.6.31@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
diff:
- style
- seperate strbufs in main.
 remote-testsvn.c |   52 +++++++++++++++++++++++++++++++++-------------------
 1 file changed, 33 insertions(+), 19 deletions(-)
diff --git a/remote-testsvn.c b/remote-testsvn.c
index c30ffcd..67466a9 100644
--- a/remote-testsvn.c
+++ b/remote-testsvn.c
@@ -9,6 +9,7 @@
 #include "argv-array.h"
 
 static const char *url;
+static int dump_from_file;
 static const char *private_ref;
 static const char *remote_ref = "refs/heads/master";
 
@@ -54,29 +55,36 @@ static int cmd_import(const char *line)
 	struct argv_array svndump_argv = ARGV_ARRAY_INIT;
 	struct child_process svndump_proc;
 
-	memset(&svndump_proc, 0, sizeof(struct child_process));
-	svndump_proc.out = -1;
-	argv_array_push(&svndump_argv, "svnrdump");
-	argv_array_push(&svndump_argv, "dump");
-	argv_array_push(&svndump_argv, url);
-	argv_array_pushf(&svndump_argv, "-r%u:HEAD", startrev);
-	svndump_proc.argv = svndump_argv.argv;
-
-	code = start_command(&svndump_proc);
-	if (code)
-		die("Unable to start %s, code %d", svndump_proc.argv[0], code);
-	dumpin_fd = svndump_proc.out;
-
+	if (dump_from_file) {
+		dumpin_fd = open(url, O_RDONLY);
+		if(dumpin_fd < 0)
+			die_errno("Couldn't open svn dump file %s.", url);
+	} else {
+		memset(&svndump_proc, 0, sizeof(struct child_process));
+		svndump_proc.out = -1;
+		argv_array_push(&svndump_argv, "svnrdump");
+		argv_array_push(&svndump_argv, "dump");
+		argv_array_push(&svndump_argv, url);
+		argv_array_pushf(&svndump_argv, "-r%u:HEAD", startrev);
+		svndump_proc.argv = svndump_argv.argv;
+
+		code = start_command(&svndump_proc);
+		if (code)
+			die("Unable to start %s, code %d", svndump_proc.argv[0], code);
+		dumpin_fd = svndump_proc.out;
+	}
 	svndump_init_fd(dumpin_fd, STDIN_FILENO);
 	svndump_read(url, private_ref);
 	svndump_deinit();
 	svndump_reset();
 
 	close(dumpin_fd);
-	code = finish_command(&svndump_proc);
-	if (code)
-		warning("%s, returned %d", svndump_proc.argv[0], code);
-	argv_array_clear(&svndump_argv);
+	if (!dump_from_file) {
+		code = finish_command(&svndump_proc);
+		if (code)
+			warning("%s, returned %d", svndump_proc.argv[0], code);
+		argv_array_clear(&svndump_argv);
+	}
 
 	return 0;
 }
@@ -151,8 +159,14 @@ int main(int argc, const char **argv)
 	remote = remote_get(argv[1]);
 	url_in = (argc == 3) ? argv[2] : remote->url[0];
 
-	end_url_with_slash(&url_sb, url_in);
-	url = url_sb.buf;
+	if (!prefixcmp(url_in, "file://")) {
+		dump_from_file = 1;
+		url = url_decode(url_in + sizeof("file://")-1);
+	} else {
+		dump_from_file = 0;
+		end_url_with_slash(&url_sb, url_in);
+		url = url_sb.buf;
+	}
 
 	strbuf_addf(&private_ref_sb, "refs/svn/%s/master", remote->name);
 	private_ref = private_ref_sb.buf;
-- 
1.7.9.5
Previous: Florian AchleitnerNext: Florian Achleitner
Message 10 of 17 in “GSOC remote-svn”
  1. 00/16 GSOC remote-svnFlorian Achleitner, Sep 19, 2012
  2. 01/16 Implement a remote helper for svn in CFlorian Achleitner, Sep 19, 2012
  3. 02/16 Add git-remote-testsvn to MakefileFlorian Achleitner, Sep 19, 2012
  4. 03/16 Add svndump_init_fd to allow reading dumps from arbitrary FDsFlorian Achleitner, Sep 19, 2012
  5. 04/16 Add argv_array_detach and argv_array_free_detachedFlorian Achleitner, Sep 19, 2012
  6. 05/16 Connect fast-import to the remote-helper via pipe, adding 'bidi-import' capabilityFlorian Achleitner, Sep 19, 2012
  7. 06/16 Add documentation for the 'bidi-import' capability of remote-helpersFlorian Achleitner, Sep 19, 2012
  8. 07/16 When debug==1, start fast-import with "--stats" instead of "--quiet"Florian Achleitner, Sep 19, 2012
  9. 08/16 remote-svn, vcs-svn: Enable fetching to private refsFlorian Achleitner, Sep 19, 2012
  10. 09/16 Allow reading svn dumps from files via file:// urlsFlorian Achleitner, Sep 19, 2012
  11. 10/16 vcs-svn: add fast_export_note to create notesFlorian Achleitner, Sep 19, 2012
  12. 11/16 Create a note for every imported commit containing svn metadataFlorian Achleitner, Sep 19, 2012
  13. 12/16 remote-svn: Activate import/export-marks for fast-importFlorian Achleitner, Sep 19, 2012
  14. 13/16 remote-svn: add incremental importFlorian Achleitner, Sep 19, 2012
  15. 14/16 Add a svnrdump-simulator replaying a dump file for testingFlorian Achleitner, Sep 19, 2012
  16. 15/16 remote-svn: add marks-file regenerationFlorian Achleitner, Sep 19, 2012
  17. 16/16 Add a test script for remote-svnFlorian Achleitner, Sep 19, 2012

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