[PATCH v3 4/7] refs: consolidate remote name validation

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From: Sean Barag <sean@xxxxxxxxx>

In preparation for a future patch, extract from remote.c a function that
validates possible remote names so that its rules can be used
consistently in other places.

Helped-by: Derrick Stolee <stolee@xxxxxxxxx>
Signed-off-by: Sean Barag <sean@xxxxxxxxx>
---
 builtin/remote.c |  7 ++-----
 refspec.c        | 10 ++++++++++
 refspec.h        |  1 +
 3 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/builtin/remote.c b/builtin/remote.c
index 64b4b551eb..63f2b46c3d 100644
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -194,8 +194,7 @@ static int add(int argc, const char **argv)
 	if (remote_is_configured(remote, 1))
 		die(_("remote %s already exists."), name);
 
-	strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
-	if (!valid_fetch_refspec(buf2.buf))
+	if (!valid_remote_name(name))
 		die(_("'%s' is not a valid remote name"), name);
 
 	strbuf_addf(&buf, "remote.%s.url", name);
@@ -696,11 +695,9 @@ static int mv(int argc, const char **argv)
 	if (remote_is_configured(newremote, 1))
 		die(_("remote %s already exists."), rename.new_name);
 
-	strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new_name);
-	if (!valid_fetch_refspec(buf.buf))
+	if (!valid_remote_name(rename.new_name))
 		die(_("'%s' is not a valid remote name"), rename.new_name);
 
-	strbuf_reset(&buf);
 	strbuf_addf(&buf, "remote.%s", rename.old_name);
 	strbuf_addf(&buf2, "remote.%s", rename.new_name);
 	if (git_config_rename_section(buf.buf, buf2.buf) < 1)
diff --git a/refspec.c b/refspec.c
index 8d0affc34a..3056ffdfb8 100644
--- a/refspec.c
+++ b/refspec.c
@@ -215,6 +215,16 @@ int valid_fetch_refspec(const char *fetch_refspec_str)
 	return ret;
 }
 
+int valid_remote_name(const char *name)
+{
+	int result;
+	struct strbuf refspec = STRBUF_INIT;
+	strbuf_addf(&refspec, "refs/heads/test:refs/remotes/%s/test", name);
+	result = valid_fetch_refspec(refspec.buf);
+	strbuf_release(&refspec);
+	return result;
+}
+
 void refspec_ref_prefixes(const struct refspec *rs,
 			  struct strvec *ref_prefixes)
 {
diff --git a/refspec.h b/refspec.h
index 7569248d11..bbb25968a8 100644
--- a/refspec.h
+++ b/refspec.h
@@ -62,6 +62,7 @@ void refspec_appendn(struct refspec *rs, const char **refspecs, int nr);
 void refspec_clear(struct refspec *rs);
 
 int valid_fetch_refspec(const char *refspec);
+int valid_remote_name(const char *name);
 
 struct strvec;
 /*
-- 
gitgitgadget




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