[bitbake-devel] [PATCH v2 1/2] lib/bb/utils: fix error in edit_metadata() when deleting first line

[Paul Eggleton]

If you tried to delete the variable on the first line passed to
edit_metadata() this failed because the logic for trimming extra blank
lines didn't expect the list to be empty at that point - fix that bad
assumption.

Signed-off-by: Paul Eggleton <paul.eggleton at linux.intel.com>
---
 lib/bb/utils.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/bb/utils.py b/lib/bb/utils.py
index 7f82687..9b28952 100644
--- a/lib/bb/utils.py
+++ b/lib/bb/utils.py
@@ -1177,7 +1177,7 @@ def edit_metadata(meta_lines, variables, varfunc, match_overrides=False):
             if not skip:
                 if checkspc:
                     checkspc = False
-                    if newlines[-1] == '\n' and line == '\n':
+                    if newlines and newlines[-1] == '\n' and line == '\n':
                         # Squash blank line if there are two consecutive blanks after a removal
                         continue
                 newlines.append(line)
-- 
2.1.0