threads / patch / 20844

patch, 8 partsAllow programs to not depend on remotes having urls

Subject: [PATCH 5/8] Allow programs to not depend on remotes having urls

## tl;dr

2 messages between Sep 4, 2009 and Sep 4, 2009. Diffs are folded; open one to read it.

replies: 1people: 2as markdown or json

Daniel Barkalow· Sep 4, 2009, 02:13 UTC · lore

For fetch and ls-remote, which use the first url of a remote, have transport_get() determine this by passing a remote and passing NULL for the url. For push, which uses every url of a remote, use each url in turn if there are any, and use NULL if there are none.

This will allow the transport code to do something different if the location is not specified with a url.

Also, have the message for a fetch say "foreign" if there is no url.
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
---
 builtin-fetch.c     |    7 ++++-
 builtin-ls-remote.c |    4 +-
 builtin-push.c      |   67 ++++++++++++++++++++++++++++++++-------------------
 transport.c         |    3 ++
 4 files changed, 52 insertions(+), 29 deletions(-)
Show changes to 4 files +52 −29

builtin-fetch.c, builtin-ls-remote.c, builtin-push.c, transport.c

diff --git a/builtin-fetch.c b/builtin-fetch.c
index 817dd6b..63a4ff0 100644
--- a/builtin-fetch.c
+++ b/builtin-fetch.c
@@ -309,7 +309,10 @@ static int store_updated_refs(const char *raw_url, const char *remote_name,
 	if (!fp)
 		return error("cannot open %s: %s\n", filename, strerror(errno));
 
-	url = transport_anonymize_url(raw_url);
+	if (raw_url)
+		url = transport_anonymize_url(raw_url);
+	else
+		url = xstrdup("foreign");
 	for (rm = ref_map; rm; rm = rm->next) {
 		struct ref *ref = NULL;
 
@@ -663,7 +666,7 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)
 	if (!remote)
 		die("Where do you want to fetch from today?");
 
-	transport = transport_get(remote, remote->url[0]);
+	transport = transport_get(remote, NULL);
 	if (verbosity >= 2)
 		transport->verbose = 1;
 	if (verbosity < 0)
diff --git a/builtin-ls-remote.c b/builtin-ls-remote.c
index 78a88f7..4c6fc58 100644
--- a/builtin-ls-remote.c
+++ b/builtin-ls-remote.c
@@ -87,9 +87,9 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix)
 		}
 	}
 	remote = nongit ? NULL : remote_get(dest);
-	if (remote && !remote->url_nr)
+	if (!nongit && !remote)
 		die("remote %s has no configured URL", dest);
-	transport = transport_get(remote, remote ? remote->url[0] : dest);
+	transport = transport_get(remote, remote ? NULL : dest);
 	if (uploadpack != NULL)
 		transport_set_option(transport, TRANS_OPT_UPLOADPACK, uploadpack);
 
diff --git a/builtin-push.c b/builtin-push.c
index 67f6d96..8e9b917 100644
--- a/builtin-push.c
+++ b/builtin-push.c
@@ -88,6 +88,34 @@ static void setup_default_push_refspecs(void)
 	}
 }
 
+static int push_with_options(struct transport *transport, int flags)
+{
+	int err;
+	int nonfastforward;
+	if (receivepack)
+		transport_set_option(transport,
+				     TRANS_OPT_RECEIVEPACK, receivepack);
+	if (thin)
+		transport_set_option(transport, TRANS_OPT_THIN, "yes");
+
+	if (flags & TRANSPORT_PUSH_VERBOSE)
+		fprintf(stderr, "Pushing to %s\n", transport->url);
+	err = transport_push(transport, refspec_nr, refspec, flags,
+			     &nonfastforward);
+	err |= transport_disconnect(transport);
+
+	if (!err)
+		return 0;
+
+	if (nonfastforward) {
+		printf("To prevent you from losing history, non-fast-forward updates were rejected.\n"
+		       "Merge the remote changes before pushing again.\n"
+		       "See 'non-fast forward' section of 'git push --help' for details.\n");
+	}
+
+	return 1;
+}
+
 static int do_push(const char *repo, int flags)
 {
 	int i, errs;
@@ -136,33 +164,22 @@ static int do_push(const char *repo, int flags)
 		url = remote->url;
 		url_nr = remote->url_nr;
 	}
-	for (i = 0; i < url_nr; i++) {
+	if (url_nr) {
+		for (i = 0; i < url_nr; i++) {
+			struct transport *transport =
+				transport_get(remote, url[i]);
+			if (push_with_options(transport, flags)) {
+				error("failed to push some refs to '%s'", url[i]);
+				errs++;
+			}
+		}
+	} else {
 		struct transport *transport =
-			transport_get(remote, url[i]);
-		int err;
-		int nonfastforward;
-		if (receivepack)
-			transport_set_option(transport,
-					     TRANS_OPT_RECEIVEPACK, receivepack);
-		if (thin)
-			transport_set_option(transport, TRANS_OPT_THIN, "yes");
-
-		if (flags & TRANSPORT_PUSH_VERBOSE)
-			fprintf(stderr, "Pushing to %s\n", url[i]);
-		err = transport_push(transport, refspec_nr, refspec, flags,
-				     &nonfastforward);
-		err |= transport_disconnect(transport);
-
-		if (!err)
-			continue;
-
-		error("failed to push some refs to '%s'", url[i]);
-		if (nonfastforward) {
-			printf("To prevent you from losing history, non-fast-forward updates were rejected.\n"
-			       "Merge the remote changes before pushing again.\n"
-			       "See 'non-fast forward' section of 'git push --help' for details.\n");
+			transport_get(remote, NULL);
+		if (push_with_options(transport, flags)) {
+			error("failed to push some refs to foreign system");
+			errs++;
 		}
-		errs++;
 	}
 	return !!errs;
 }
diff --git a/transport.c b/transport.c
index 93430fa..684fd6c 100644
--- a/transport.c
+++ b/transport.c
@@ -813,6 +813,9 @@ struct transport *transport_get(struct remote *remote, const char *url)
 	struct transport *ret = xcalloc(1, sizeof(*ret));
 
 	ret->remote = remote;
+
+	if (!url && remote && remote->url)
+		url = remote->url[0];
 	ret->url = url;
 
 	if (!prefixcmp(url, "rsync:")) {
-- 
1.6.4.2.419.gc86f8
Johannes Schindelin· Sep 4, 2009, 12:45 UTC · re: Daniel Barkalow · lore

Re: [PATCH 5/8] Allow programs to not depend on remotes having urls

Hi,
On Thu, 3 Sep 2009, Daniel Barkalow wrote:
Show 7 quoted lines
> For fetch and ls-remote, which use the first url of a remote, have
> transport_get() determine this by passing a remote and passing NULL
> for the url. For push, which uses every url of a remote, use each url
> in turn if there are any, and use NULL if there are none.
> 
> This will allow the transport code to do something different if the
> location is not specified with a url.
For the record: you did not convince me.  Not that you tried, to...

Ciao, Dscho

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