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-rwxr-xr-xt/t3402-rebase-merge.sh245
1 files changed, 245 insertions, 0 deletions
diff --git a/t/t3402-rebase-merge.sh b/t/t3402-rebase-merge.sh
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+++ b/t/t3402-rebase-merge.sh
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+#!/bin/sh
+#
+# Copyright (c) 2006 Junio C Hamano
+#
+
+test_description='git rebase --merge test'
+
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+. ./test-lib.sh
+
+T="A quick brown fox
+jumps over the lazy dog."
+for i in 1 2 3 4 5 6 7 8 9 10
+do
+ echo "$i $T"
+done >original
+
+test_expect_success setup '
+ git add original &&
+ git commit -m"initial" &&
+ git branch side &&
+ echo "11 $T" >>original &&
+ git commit -a -m"main updates a bit." &&
+
+ echo "12 $T" >>original &&
+ git commit -a -m"main updates a bit more." &&
+
+ git checkout side &&
+ (echo "0 $T" && cat original) >renamed &&
+ git add renamed &&
+ git update-index --force-remove original &&
+ git commit -a -m"side renames and edits." &&
+
+ tr "[a-z]" "[A-Z]" <original >newfile &&
+ git add newfile &&
+ git commit -a -m"side edits further." &&
+ git branch second-side &&
+
+ tr "[a-m]" "[A-M]" <original >newfile &&
+ rm -f original &&
+ git commit -a -m"side edits once again." &&
+
+ git branch test-rebase side &&
+ git branch test-rebase-pick side &&
+ git branch test-reference-pick side &&
+ git branch test-conflicts side &&
+ git checkout -b test-merge side
+'
+
+test_expect_success 'reference merge' '
+ git merge -s recursive -m "reference merge" main
+'
+
+PRE_REBASE=$(git rev-parse test-rebase)
+test_expect_success rebase '
+ git checkout test-rebase &&
+ GIT_TRACE=1 git rebase --merge main
+'
+
+test_expect_success 'test-rebase@{1} is pre rebase' '
+ test $PRE_REBASE = $(git rev-parse test-rebase@{1})
+'
+
+test_expect_success 'merge and rebase should match' '
+ git diff-tree -r test-rebase test-merge >difference &&
+ if test -s difference
+ then
+ cat difference
+ false
+ else
+ echo happy
+ fi
+'
+
+test_expect_success 'rebase the other way' '
+ git reset --hard main &&
+ git rebase --merge side
+'
+
+test_expect_success 'rebase -Xtheirs' '
+ git checkout -b conflicting main~2 &&
+ echo "AB $T" >> original &&
+ git commit -mconflicting original &&
+ git rebase -Xtheirs main &&
+ grep AB original &&
+ ! grep 11 original
+'
+
+test_expect_success 'rebase -Xtheirs from orphan' '
+ git checkout --orphan orphan-conflicting main~2 &&
+ echo "AB $T" >> original &&
+ git commit -morphan-conflicting original &&
+ git rebase -Xtheirs main &&
+ grep AB original &&
+ ! grep 11 original
+'
+
+test_expect_success 'merge and rebase should match' '
+ git diff-tree -r test-rebase test-merge >difference &&
+ if test -s difference
+ then
+ cat difference
+ false
+ else
+ echo happy
+ fi
+'
+
+test_expect_success 'picking rebase' '
+ git reset --hard side &&
+ git rebase --merge --onto main side^^ &&
+ mb=$(git merge-base main HEAD) &&
+ if test "$mb" = "$(git rev-parse main)"
+ then
+ echo happy
+ else
+ git show-branch
+ false
+ fi &&
+ f=$(git diff-tree --name-only HEAD^ HEAD) &&
+ g=$(git diff-tree --name-only HEAD^^ HEAD^) &&
+ case "$f,$g" in
+ newfile,newfile)
+ echo happy ;;
+ *)
+ echo "$f"
+ echo "$g"
+ false
+ esac
+'
+
+test_expect_success 'rebase -s funny -Xopt' '
+ test_when_finished "rm -fr test-bin funny.was.run" &&
+ mkdir test-bin &&
+ cat >test-bin/git-merge-funny <<-EOF &&
+ #!$SHELL_PATH
+ case "\$1" in --opt) ;; *) exit 2 ;; esac
+ shift &&
+ >funny.was.run &&
+ exec git merge-recursive "\$@"
+ EOF
+ chmod +x test-bin/git-merge-funny &&
+ git reset --hard &&
+ git checkout -b test-funny main^ &&
+ test_commit funny &&
+ (
+ PATH=./test-bin:$PATH &&
+ git rebase -s funny -Xopt main
+ ) &&
+ test -f funny.was.run
+'
+
+test_expect_success 'rebase --skip works with two conflicts in a row' '
+ git checkout second-side &&
+ tr "[A-Z]" "[a-z]" <newfile >tmp &&
+ mv tmp newfile &&
+ git commit -a -m"edit conflicting with side" &&
+ tr "[d-f]" "[D-F]" <newfile >tmp &&
+ mv tmp newfile &&
+ git commit -a -m"another edit conflicting with side" &&
+ test_must_fail git rebase --merge test-conflicts &&
+ test_must_fail git rebase --skip &&
+ git rebase --skip
+'
+
+test_expect_success '--reapply-cherry-picks' '
+ git init repo &&
+
+ # O(1-10) -- O(1-11) -- O(0-10) main
+ # \
+ # -- O(1-11) -- O(1-12) otherbranch
+
+ printf "Line %d\n" $(test_seq 1 10) >repo/file.txt &&
+ git -C repo add file.txt &&
+ git -C repo commit -m "base commit" &&
+
+ printf "Line %d\n" $(test_seq 1 11) >repo/file.txt &&
+ git -C repo commit -a -m "add 11" &&
+
+ printf "Line %d\n" $(test_seq 0 10) >repo/file.txt &&
+ git -C repo commit -a -m "add 0 delete 11" &&
+
+ git -C repo checkout -b otherbranch HEAD^^ &&
+ printf "Line %d\n" $(test_seq 1 11) >repo/file.txt &&
+ git -C repo commit -a -m "add 11 in another branch" &&
+
+ printf "Line %d\n" $(test_seq 1 12) >repo/file.txt &&
+ git -C repo commit -a -m "add 12 in another branch" &&
+
+ # Regular rebase fails, because the 1-11 commit is deduplicated
+ test_must_fail git -C repo rebase --merge main 2> err &&
+ test_i18ngrep "error: could not apply.*add 12 in another branch" err &&
+ git -C repo rebase --abort &&
+
+ # With --reapply-cherry-picks, it works
+ git -C repo rebase --merge --reapply-cherry-picks main
+'
+
+test_expect_success '--reapply-cherry-picks refrains from reading unneeded blobs' '
+ git init server &&
+
+ # O(1-10) -- O(1-11) -- O(1-12) main
+ # \
+ # -- O(0-10) otherbranch
+
+ printf "Line %d\n" $(test_seq 1 10) >server/file.txt &&
+ git -C server add file.txt &&
+ git -C server commit -m "merge base" &&
+
+ printf "Line %d\n" $(test_seq 1 11) >server/file.txt &&
+ git -C server commit -a -m "add 11" &&
+
+ printf "Line %d\n" $(test_seq 1 12) >server/file.txt &&
+ git -C server commit -a -m "add 12" &&
+
+ git -C server checkout -b otherbranch HEAD^^ &&
+ printf "Line %d\n" $(test_seq 0 10) >server/file.txt &&
+ git -C server commit -a -m "add 0" &&
+
+ test_config -C server uploadpack.allowfilter 1 &&
+ test_config -C server uploadpack.allowanysha1inwant 1 &&
+
+ git clone --filter=blob:none "file://$(pwd)/server" client &&
+ git -C client checkout origin/main &&
+ git -C client checkout origin/otherbranch &&
+
+ # Sanity check to ensure that the blobs from the merge base and "add
+ # 11" are missing
+ git -C client rev-list --objects --all --missing=print >missing_list &&
+ MERGE_BASE_BLOB=$(git -C server rev-parse main^^:file.txt) &&
+ ADD_11_BLOB=$(git -C server rev-parse main^:file.txt) &&
+ grep "[?]$MERGE_BASE_BLOB" missing_list &&
+ grep "[?]$ADD_11_BLOB" missing_list &&
+
+ git -C client rebase --merge --reapply-cherry-picks origin/main &&
+
+ # The blob from the merge base had to be fetched, but not "add 11"
+ git -C client rev-list --objects --all --missing=print >missing_list &&
+ ! grep "[?]$MERGE_BASE_BLOB" missing_list &&
+ grep "[?]$ADD_11_BLOB" missing_list
+'
+
+test_done