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![Elijah Newren](/assets/img/avatar_default.png)
Ever since commit a492d5331c
("merge-ort: ensure we consult df_conflict
and path_conflicts", 2021-06-30), when renormalization is active AND a
file is involved in a rename/delete conflict BUT the file is unmodified
(either before or after renormalization), merge-ort was running into an
assertion failure. Prior to that commit (or if assertions were compiled
out), merge-ort would mis-merge instead, ignoring the rename/delete
conflict and just deleting the file.
Remove the assertions, fix the code appropriately, leave some good
comments in the code, and add a testcase for this situation.
Reported-by: Ralf Thielow <ralf.thielow@gmail.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
234 lines
5.1 KiB
Bash
Executable file
234 lines
5.1 KiB
Bash
Executable file
#!/bin/sh
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test_description='CRLF merge conflict across text=auto change
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* [main] remove .gitattributes
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! [side] add line from b
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--
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+ [side] add line from b
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* [main] remove .gitattributes
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* [main^] add line from a
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* [main~2] normalize file
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*+ [side^] Initial
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'
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GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
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export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
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. ./test-lib.sh
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test_have_prereq SED_STRIPS_CR && SED_OPTIONS=-b
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compare_files () {
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tr '\015\000' QN <"$1" >"$1".expect &&
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tr '\015\000' QN <"$2" >"$2".actual &&
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test_cmp "$1".expect "$2".actual &&
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rm "$1".expect "$2".actual
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}
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test_expect_success setup '
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git config core.autocrlf false &&
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echo first line | append_cr >file &&
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echo first line >control_file &&
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echo only line >inert_file &&
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git add file control_file inert_file &&
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test_tick &&
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git commit -m "Initial" &&
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git tag initial &&
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git branch side &&
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echo "* text=auto" >.gitattributes &&
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echo first line >file &&
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git add .gitattributes file &&
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test_tick &&
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git commit -m "normalize file" &&
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echo same line | append_cr >>file &&
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echo same line >>control_file &&
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git add file control_file &&
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test_tick &&
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git commit -m "add line from a" &&
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git tag a &&
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git rm .gitattributes &&
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rm file &&
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git checkout file &&
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test_tick &&
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git commit -m "remove .gitattributes" &&
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git tag c &&
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git checkout side &&
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echo same line | append_cr >>file &&
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echo same line >>control_file &&
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git add file control_file &&
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test_tick &&
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git commit -m "add line from b" &&
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git tag b &&
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git checkout main
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'
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test_expect_success 'set up fuzz_conflict() helper' '
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fuzz_conflict() {
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sed $SED_OPTIONS -e "s/^\([<>=]......\) .*/\1/" "$@"
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}
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'
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test_expect_success 'Merge after setting text=auto' '
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cat <<-\EOF >expected &&
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first line
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same line
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EOF
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if test_have_prereq NATIVE_CRLF; then
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append_cr <expected >expected.temp &&
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mv expected.temp expected
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fi &&
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git config merge.renormalize true &&
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git rm -fr . &&
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rm -f .gitattributes &&
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git reset --hard a &&
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git merge b &&
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compare_files expected file
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'
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test_expect_success 'Merge addition of text=auto eol=LF' '
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git config core.eol lf &&
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cat <<-\EOF >expected &&
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first line
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same line
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EOF
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git config merge.renormalize true &&
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git rm -fr . &&
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rm -f .gitattributes &&
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git reset --hard b &&
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git merge a &&
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compare_files expected file
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'
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test_expect_success 'Merge addition of text=auto eol=CRLF' '
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git config core.eol crlf &&
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cat <<-\EOF >expected &&
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first line
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same line
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EOF
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append_cr <expected >expected.temp &&
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mv expected.temp expected &&
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git config merge.renormalize true &&
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git rm -fr . &&
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rm -f .gitattributes &&
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git reset --hard b &&
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echo >&2 "After git reset --hard b" &&
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git ls-files -s --eol >&2 &&
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git merge a &&
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compare_files expected file
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'
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test_expect_success 'Detect CRLF/LF conflict after setting text=auto' '
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git config core.eol native &&
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echo "<<<<<<<" >expected &&
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echo first line >>expected &&
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echo same line >>expected &&
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echo ======= >>expected &&
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echo first line | append_cr >>expected &&
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echo same line | append_cr >>expected &&
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echo ">>>>>>>" >>expected &&
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git config merge.renormalize false &&
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rm -f .gitattributes &&
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git reset --hard a &&
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test_must_fail git merge b &&
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fuzz_conflict file >file.fuzzy &&
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compare_files expected file.fuzzy
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'
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test_expect_success 'Detect LF/CRLF conflict from addition of text=auto' '
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echo "<<<<<<<" >expected &&
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echo first line | append_cr >>expected &&
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echo same line | append_cr >>expected &&
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echo ======= >>expected &&
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echo first line >>expected &&
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echo same line >>expected &&
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echo ">>>>>>>" >>expected &&
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git config merge.renormalize false &&
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rm -f .gitattributes &&
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git reset --hard b &&
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test_must_fail git merge a &&
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fuzz_conflict file >file.fuzzy &&
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compare_files expected file.fuzzy
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'
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test_expect_success 'checkout -m after setting text=auto' '
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cat <<-\EOF >expected &&
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first line
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same line
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EOF
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git config merge.renormalize true &&
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git rm -fr . &&
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rm -f .gitattributes &&
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git reset --hard initial &&
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git restore --source=a -- . &&
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git checkout -m b &&
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git diff --no-index --ignore-cr-at-eol expected file
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'
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test_expect_success 'checkout -m addition of text=auto' '
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cat <<-\EOF >expected &&
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first line
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same line
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EOF
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git config merge.renormalize true &&
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git rm -fr . &&
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rm -f .gitattributes file &&
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git reset --hard initial &&
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git restore --source=b -- . &&
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git checkout -m a &&
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git diff --no-index --ignore-cr-at-eol expected file
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'
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test_expect_success 'Test delete/normalize conflict' '
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git checkout -f side &&
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git rm -fr . &&
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rm -f .gitattributes &&
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git reset --hard initial &&
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git rm file &&
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git commit -m "remove file" &&
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git checkout main &&
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git reset --hard a^ &&
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git merge side &&
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test_path_is_missing file
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'
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test_expect_success 'rename/delete vs. renormalization' '
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git init subrepo &&
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(
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cd subrepo &&
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echo foo >oldfile &&
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git add oldfile &&
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git commit -m original &&
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git branch rename &&
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git branch nuke &&
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git checkout rename &&
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git mv oldfile newfile &&
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git commit -m renamed &&
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git checkout nuke &&
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git rm oldfile &&
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git commit -m deleted &&
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git checkout rename^0 &&
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test_must_fail git -c merge.renormalize=true merge nuke >out &&
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grep "rename/delete" out
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)
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'
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test_done
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