git-debrebase: break out ffq_prev_branchinfo (nfc)

[dgit.git] / git-debrebase

diff --git a/git-debrebase b/git-debrebase
index 50fa1bc96cfb22e169f9c27406b165047e5b1152..592dd292f4fe7ecdfa77a5b53a5b1dbbc50fa1e1 100755 (executable)
--- a/git-debrebase
+++ b/git-debrebase
@@ -100,7 +100,7 @@ sub badusage ($) {
 
 sub cfg ($;$) {
     my ($k, $optional) = @_;
-    $/ = "\0";
+    local $/ = "\0";
     my @cmd = qw(git config -z);
     push @cmd, qw(--get-all) if wantarray;
     push @cmd, $k;
@@ -850,6 +850,20 @@ sub cmd_analyse () {
     STDOUT->error and die $!;
 }
 
+sub ffq_prev_branchinfo () {
+    # => ('status', "message", [$current, $ffq_prev])
+    # 'status' may be
+    #    branch         message is undef
+    #    weird-symref   } no $current,
+    #    notbranch      }  no $ffq_prev
+    my $current = git_get_symref();
+    return ('detached', 'detached HEAD') unless defined $current;
+    return ('weird-symref', 'HEAD symref is not to refs/')
+       unless $current =~ m{^refs/};
+    my $ffq_prev = "refs/$ffq_refprefix/$'";
+    return ('branch', undef, $current, $ffq_prev);
+}
+
 sub record_ffq_prev () {
     # => ('status', "message")
     # 'status' may be
@@ -861,11 +875,8 @@ sub record_ffq_prev () {
     # if not ff from some branch we should be ff from, is an fproblem
     # if "written", will have printed something about that to stdout,
     #   and also some messages about ff checks
-    my $current = git_get_symref();
-    return ('detached', 'detached HEAD') unless defined $current;
-    return ('weird-symref', 'HEAD symref is not to refs/')
-       unless $current =~ m{^refs/};
-    my $ffq_prev = "refs/$ffq_refprefix/$'";
+    my ($status, $message, $current, $ffq_prev) = ffq_prev_branchinfo();
+    return ($status, $message) unless $status eq 'branch';
 
     my $currentval = get_head();