Hi Junio, Doah, The [PATCH v12] Is uploaded, in which, 1. "$meld_path" is quoted. 2. the logical for deal true/false/auto is flow Junio's comment 3. error message will emit for invalid configuration value $ git config mergetool.meld.useAutoMerge invalid_boolean_value $ git mergetool --tool=meld ... fatal: bad numeric config value 'hello' for 'mergetool.meld.useautomerge' in .git/config: invalid unit Please review again, thank you. https://lore.kernel.org/git/pull.781.v12.git.git.1594178716840.gitgitgadget@xxxxxxxxx/ Regards Lin