git-gui: Don't prepend the prefix if value looks like a full path

When argument parsing fails to detect a file name, "git-gui" will try to
use the previously detected "head" as the file name. We should avoid
prepending the prefix if "head" looks like a full path.

Signed-off-by: Andrew Wong <andrew.kw.w@gmail.com>
Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>

diff --git a/git-gui.sh b/git-gui.sh
index 5d7894bd940f1de7ed6c8d823416cb5ac1d76a8a..89f636f4963cf7933639f6a23b3be2e8fd4c0964 100755 (executable)
--- a/git-gui.sh
+++ b/git-gui.sh
@@ -3037,8 +3037,13 @@ blame {
        unset is_path
 
        if {$head ne {} && $path eq {}} {
-               set path [normalize_relpath $_prefix$head]
-               set head {}
+               if {[string index $head 0] eq {/}} {
+                       set path [normalize_relpath $head]
+                       set head {}
+               } else {
+                       set path [normalize_relpath $_prefix$head]
+                       set head {}
+               }
        }
 
        if {$head eq {}} {