Abstract the refspec query and parse

Move them to their own functions to avoid duplication and to make it
easier to ignore missing configuration.

Not finding 'fetch' is considered fatal, though this might not be
correct behaviour (push-only remotes?)

Signed-off-by: Carlos Martín Nieto <carlos@cmartin.tk>

include/git2.h

@@ -53,6 +53,7 @@
 
 #include "git2/index.h"
 #include "git2/config.h"
+#include "git2/remote.h"
 
 #include "git2/remote.h"
 #include "git2/refspec.h"

src/remote.c

@@ -69,7 +69,7 @@ static int parse_remote_refspec(git_config *cfg, git_refspec *refspec, const cha
 	if (error < GIT_SUCCESS)
 		return error;
 
-	return git_refspec_parse(refspec, val);
+	return refspec_parse(refspec, val);
 }
 
 int git_remote_get(git_remote **out, git_config *cfg, const char *name)
@@ -122,13 +122,11 @@ int git_remote_get(git_remote **out, git_config *cfg, const char *name)
 		goto cleanup;
 	}
 
-	error = git_config_get_string(cfg, buf, &val);
-	if (error < GIT_SUCCESS)
-		goto cleanup;
-
-	error = refspec_parse(&remote->fetch, val);
-	if (error < GIT_SUCCESS)
+	error = parse_remote_refspec(cfg, &remote->fetch, buf);
+	if (error < GIT_SUCCESS) {
+		error = git__rethrow(error, "Failed to get fetch refspec");
 		goto cleanup;
+	}
 
 	ret = snprintf(buf, buf_len, "%s.%s.%s", "remote", name, "push");
 	if (ret < 0) {
@@ -136,11 +134,11 @@ int git_remote_get(git_remote **out, git_config *cfg, const char *name)
 		goto cleanup;
 	}
 
-	error = git_config_get_string(cfg, buf, &val);
-	if (error < GIT_SUCCESS)
-		goto cleanup;
+	error = parse_remote_refspec(cfg, &remote->push, buf);
+	/* Not finding push is fine */
+	if (error == GIT_ENOTFOUND)
+		error = GIT_SUCCESS;
 
-	error = refspec_parse(&remote->push, val);
 	if (error < GIT_SUCCESS)
 		goto cleanup;