mergetool: honor diff.orderFile

Teach mergetool to get the list of files to edit via `diff` so that we gain support for diff.orderFile. Suggested-by: Luis Gutierrez <luisgutz@gmail.com> Helped-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: David Aguilar <davvid@gmail.com> Reviewed-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>

David Aguilar committed Oct 7, 2016 at 16:58 UTC 57937f70a09c12ef484c290865dac4066d207c9c
3 files changed +53 -15
Documentation/git-mergetool.txt
+5
@@ -79,6 +79,11 @@ success of the resolution after the custom tool has exited.
79 Prompt before each invocation of the merge resolution program
80 to give the user a chance to skip the path.
81
82 +DIFF ORDER FILES
83 +----------------
84 +`git mergetool` honors the `diff.orderFile` configuration variable
85 +used by `git diff`. See linkgit:git-config[1] for more details.
86 +
87 TEMPORARY FILES
88 ---------------
89 `git mergetool` creates `*.orig` backup files while resolving merges.
git-mergetool.sh
+15 -15
@@ -382,6 +382,11 @@ prompt_after_failed_merge () {
382 done
383 }
384
385 +print_noop_and_exit () {
386 + echo "No files need merging"
387 + exit 0
388 +}
389 +
390 main () {
391 prompt=$(git config --bool mergetool.prompt)
392 guessed_merge_tool=false
@@ -445,28 +450,23 @@ main () {
450 merge_keep_backup="$(git config --bool mergetool.keepBackup || echo true)"
451 merge_keep_temporaries="$(git config --bool mergetool.keepTemporaries || echo false)"
452
448 - files=
449 -
450 - if test $# -eq 0
453 + if test $# -eq 0 && test -e "$GIT_DIR/MERGE_RR"
454 then
452 - cd_to_toplevel
453 -
454 - if test -e "$GIT_DIR/MERGE_RR"
455 + set -- $(git rerere remaining)
456 + if test $# -eq 0
457 then
456 - files=$(git rerere remaining)
457 - else
458 - files=$(git ls-files -u |
459 - sed -e 's/^[^ ]* //' | sort -u)
458 + print_noop_and_exit
459 fi
461 - else
462 - files=$(git ls-files -u -- "$@" |
463 - sed -e 's/^[^ ]* //' | sort -u)
460 fi
461
462 + files=$(git -c core.quotePath=false \
463 + diff --name-only --diff-filter=U -- "$@")
464 +
465 + cd_to_toplevel
466 +
467 if test -z "$files"
468 then
468 - echo "No files need merging"
469 - exit 0
469 + print_noop_and_exit
470 fi
471
472 printf "Merging:\n"
t/t7610-mergetool.sh
+33
@@ -606,4 +606,37 @@ test_expect_success MKTEMP 'temporary filenames are used with mergetool.writeToT
606 git reset --hard master >/dev/null 2>&1
607 '
608
609 +test_expect_success 'diff.orderFile configuration is honored' '
610 + test_config diff.orderFile order-file &&
611 + test_config mergetool.myecho.cmd "echo \"\$LOCAL\"" &&
612 + test_config mergetool.myecho.trustExitCode true &&
613 + echo b >order-file &&
614 + echo a >>order-file &&
615 + git checkout -b order-file-start master &&
616 + echo start >a &&
617 + echo start >b &&
618 + git add a b &&
619 + git commit -m start &&
620 + git checkout -b order-file-side1 order-file-start &&
621 + echo side1 >a &&
622 + echo side1 >b &&
623 + git add a b &&
624 + git commit -m side1 &&
625 + git checkout -b order-file-side2 order-file-start &&
626 + echo side2 >a &&
627 + echo side2 >b &&
628 + git add a b &&
629 + git commit -m side2 &&
630 + test_must_fail git merge order-file-side1 &&
631 + cat >expect <<-\EOF &&
632 + Merging:
633 + b
634 + a
635 + EOF
636 + git mergetool --no-prompt --tool myecho >output &&
637 + git grep --no-index -h -A2 Merging: output >actual &&
638 + test_cmp expect actual &&
639 + git reset --hard >/dev/null
640 +'
641 +
642 test_done