#!/bin/sh
#
# Copyright (c) 2010 Will Palmer
#
test_description='git merge-tree'
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
test_expect_success setup '
test_commit "initial" "initial-file" "initial"
'
test_expect_success 'file add A, !B' '
git reset --hard initial &&
test_commit "add-a-not-b" "ONE" "AAA" &&
git merge-tree initial initial add-a-not-b >actual &&
cat >expected <<EXPECTED &&
added in remote
their 100644 $(git rev-parse HEAD:ONE) ONE
@@ -0,0 +1 @@
+AAA
EXPECTED
test_cmp expected actual
'
test_expect_success 'file add !A, B' '
git reset --hard initial &&
test_commit "add-not-a-b" "ONE" "AAA" &&
git merge-tree initial add-not-a-b initial >actual &&
test_must_be_empty actual
'
test_expect_success 'file add A, B (same)' '
git reset --hard initial &&
test_commit "add-a-b-same-A" "ONE" "AAA" &&
git reset --hard initial &&
test_commit "add-a-b-same-B" "ONE" "AAA" &&
git merge-tree initial add-a-b-same-A add-a-b-same-B >actual &&
test_must_be_empty actual
'
test_expect_success 'file add A, B (different)' '
git reset --hard initial &&
test_commit "add-a-b-diff-A" "ONE" "AAA" &&
git reset --hard initial &&
test_commit "add-a-b-diff-B" "ONE" "BBB" &&
git merge-tree initial add-a-b-diff-A add-a-b-diff-B >actual &&
cat >expected <<EXPECTED &&
added in both
our 100644 $(git rev-parse add-a-b-diff-A:ONE) ONE
their 100644 $(git rev-parse add-a-b-diff-B:ONE) ONE
@@ -1 +1,5 @@
+<<<<<<< .our
AAA
+=======
+BBB
+>>>>>>> .their
EXPECTED
test_cmp expected actual
'
test_expect_success 'file change A, !B' '
git reset --hard initial &&
test_commit "change-a-not-b" "initial-file" "BBB" &&
git merge-tree initial change-a-not-b initial >actual &&
test_must_be_empty actual
'
test_expect_success 'file change !A, B' '
git reset --hard initial &&
test_commit "change-not-a-b" "initial-file" "BBB" &&
git merge-tree initial initial change-not-a-b >actual &&
cat >expected <<EXPECTED &&
merged
result 100644 $(git rev-parse change-a-not-b:initial-file) initial-file
our 100644 $(git rev-parse initial:initial-file ) initial-file
@@ -1 +1 @@
-initial
+BBB
EXPECTED
test_cmp expected actual
'
test_expect_success '3-way merge with --attr-source' '
test_when_finished rm -rf 3-way &&
git init 3-way &&
(
cd 3-way &&
test_commit initial file1 foo &&
base=$(git rev-parse HEAD) &&
git checkout -b brancha &&
echo bar >>file1 &&
git commit -am "adding bar" &&
source=$(git rev-parse HEAD) &&
git checkout @{-1} &&
git checkout -b branchb &&
echo baz >>file1 &&
git commit -am "adding baz" &&
merge=$(git rev-parse HEAD) &&
git checkout -b gitattributes &&
test_commit "gitattributes" .gitattributes "file1 merge=union" &&
git checkout @{-1} &&
tree=$(git --attr-source=gitattributes merge-tree --write-tree \
--merge-base "$base" --end-of-options "$source" "$merge") &&
test_write_lines foo bar baz >expect &&
git cat-file -p "$tree:file1" >actual &&
test_cmp expect actual
)
'
test_expect_success 'file change A, B (same)' '
git reset --hard initial &&
test_commit "change-a-b-same-A" "initial-file" "AAA" &&
git reset --hard initial &&
test_commit "change-a-b-same-B" "initial-file" "AAA" &&
git merge-tree initial change-a-b-same-A change-a-b-same-B >actual &&
test_must_be_empty actual
'
test_expect_success 'file change A, B (different)' '
git reset --hard initial &&
test_commit "change-a-b-diff-A" "initial-file" "AAA" &&
git reset --hard initial &&
test_commit "change-a-b-diff-B" "initial-file" "BBB" &&
git merge-tree initial change-a-b-diff-A change-a-b-diff-B >actual &&
cat >expected <<EXPECTED &&
changed in both
base 100644 $(git rev-parse initial:initial-file ) initial-file
our 100644 $(git rev-parse change-a-b-diff-A:initial-file) initial-file
their 100644 $(git rev-parse change-a-b-diff-B:initial-file) initial-file
@@ -1 +1,5 @@
+<<<<<<< .our
AAA
+=======
+BBB
+>>>>>>> .their
EXPECTED
test_cmp expected actual
'
test_expect_success 'file change A, B (mixed)' '
git reset --hard initial &&
test_commit "change-a-b-mix-base" "ONE" "
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA" &&
test_commit "change-a-b-mix-A" "ONE" \
"$(sed -e "1{s/AAA/BBB/;}" -e "10{s/AAA/BBB/;}" <ONE)" &&
git reset --hard change-a-b-mix-base &&
test_commit "change-a-b-mix-B" "ONE" \
"$(sed -e "1{s/AAA/BBB/;}" -e "10{s/AAA/CCC/;}" <ONE)" &&
git merge-tree change-a-b-mix-base change-a-b-mix-A change-a-b-mix-B \
>actual &&
cat >expected <<EXPECTED &&
changed in both
base 100644 $(git rev-parse change-a-b-mix-base:ONE) ONE
our 100644 $(git rev-parse change-a-b-mix-A:ONE ) ONE
their 100644 $(git rev-parse change-a-b-mix-B:ONE ) ONE
@@ -7,7 +7,11 @@
AAA
AAA
AAA
+<<<<<<< .our
BBB
+=======
+CCC
+>>>>>>> .their
AAA
AAA
AAA
EXPECTED
test_cmp expected actual
'
test_expect_success 'file remove A, !B' '
git reset --hard initial &&
test_commit "rm-a-not-b-base" "ONE" "AAA" &&
git rm ONE &&
git commit -m "rm-a-not-b" &&
git tag "rm-a-not-b" &&
git merge-tree rm-a-not-b-base rm-a-not-b rm-a-not-b-base >actual &&
test_must_be_empty actual
'
test_expect_success 'file remove !A, B' '
git reset --hard initial &&
test_commit "rm-not-a-b-base" "ONE" "AAA" &&
git rm ONE &&
git commit -m "rm-not-a-b" &&
git tag "rm-not-a-b" &&
git merge-tree rm-a-not-b-base rm-a-not-b-base rm-a-not-b >actual &&
cat >expected <<EXPECTED &&
removed in remote
base 100644 $(git rev-parse rm-a-not-b-base:ONE) ONE
our 100644 $(git rev-parse rm-a-not-b-base:ONE) ONE
@@ -1 +0,0 @@
-AAA
EXPECTED
test_cmp expected actual
'
test_expect_success 'file remove A, B (same)' '
git reset --hard initial &&
test_commit "rm-a-b-base" "ONE" "AAA" &&
git rm ONE &&
git commit -m "rm-a-b" &&
git tag "rm-a-b" &&
git merge-tree rm-a-b-base rm-a-b rm-a-b >actual &&
test_must_be_empty actual
'
test_expect_success 'file change A, remove B' '
git reset --hard initial &&
test_commit "change-a-rm-b-base" "ONE" "AAA" &&
test_commit "change-a-rm-b-A" "ONE" "BBB" &&
git reset --hard change-a-rm-b-base &&
git rm ONE &&
git commit -m "change-a-rm-b-B" &&
git tag "change-a-rm-b-B" &&
git merge-tree change-a-rm-b-base change-a-rm-b-A change-a-rm-b-B \
>actual &&
cat >expected <<EXPECTED &&
removed in remote
base 100644 $(git rev-parse change-a-rm-b-base:ONE) ONE
our 100644 $(git rev-parse change-a-rm-b-A:ONE ) ONE
@@ -1 +0,0 @@
-BBB
EXPECTED
test_cmp expected actual
'
test_expect_success 'file remove A, change B' '
git reset --hard initial &&
test_commit "rm-a-change-b-base" "ONE" "AAA" &&
git rm ONE &&
git commit -m "rm-a-change-b-A" &&
git tag "rm-a-change-b-A" &&
git reset --hard rm-a-change-b-base &&
test_commit "rm-a-change-b-B" "ONE" "BBB" &&
git merge-tree rm-a-change-b-base rm-a-change-b-A rm-a-change-b-B \
>actual &&
cat >expected <<EXPECTED &&
removed in local
base 100644 $(git rev-parse rm-a-change-b-base:ONE) ONE
their 100644 $(git rev-parse rm-a-change-b-B:ONE ) ONE
EXPECTED
test_cmp expected actual
'
test_expect_success 'tree add A, B (same)' '
git reset --hard initial &&
mkdir sub &&
test_commit "add sub/file" "sub/file" "file" add-tree-A &&
git merge-tree initial add-tree-A add-tree-A >actual &&
test_must_be_empty actual
'
test_expect_success 'tree add A, B (different)' '
git reset --hard initial &&
mkdir sub &&
test_commit "add sub/file" "sub/file" "AAA" add-tree-a-b-A &&
git reset --hard initial &&
mkdir sub &&
test_commit "add sub/file" "sub/file" "BBB" add-tree-a-b-B &&
git merge-tree initial add-tree-a-b-A add-tree-a-b-B >actual &&
cat >expect <<-EOF &&
added in both
our 100644 $(git rev-parse add-tree-a-b-A:sub/file) sub/file
their 100644 $(git rev-parse add-tree-a-b-B:sub/file) sub/file
@@ -1 +1,5 @@
+<<<<<<< .our
AAA
+=======
+BBB
+>>>>>>> .their
EOF
test_cmp expect actual
'
test_expect_success 'tree unchanged A, removed B' '
git reset --hard initial &&
mkdir sub &&
test_commit "add sub/file" "sub/file" "AAA" tree-remove-b-initial &&
git rm sub/file &&
test_tick &&
git commit -m "remove sub/file" &&
git tag tree-remove-b-B &&
git merge-tree tree-remove-b-initial tree-remove-b-initial tree-remove-b-B >actual &&
cat >expect <<-EOF &&
removed in remote
base 100644 $(git rev-parse tree-remove-b-initial:sub/file) sub/file
our 100644 $(git rev-parse tree-remove-b-initial:sub/file) sub/file
@@ -1 +0,0 @@
-AAA
EOF
test_cmp expect actual
'
test_expect_success 'turn file to tree' '
git reset --hard initial &&
rm initial-file &&
mkdir initial-file &&
test_commit "turn-file-to-tree" "initial-file/ONE" "CCC" &&
git merge-tree initial initial turn-file-to-tree >actual &&
cat >expect <<-EOF &&
added in remote
their 100644 $(git rev-parse turn-file-to-tree:initial-file/ONE) initial-file/ONE
@@ -0,0 +1 @@
+CCC
removed in remote
base 100644 $(git rev-parse initial:initial-file) initial-file
our 100644 $(git rev-parse initial:initial-file) initial-file
@@ -1 +0,0 @@
-initial
EOF
test_cmp expect actual
'
test_expect_success 'turn tree to file' '
git reset --hard initial &&
mkdir dir &&
test_commit "add-tree" "dir/path" "AAA" &&
test_commit "add-another-tree" "dir/another" "BBB" &&
rm -fr dir &&
test_commit "make-file" "dir" "CCC" &&
git merge-tree add-tree add-another-tree make-file >actual &&
cat >expect <<-EOF &&
removed in remote
base 100644 $(git rev-parse add-tree:dir/path) dir/path
our 100644 $(git rev-parse add-tree:dir/path) dir/path
@@ -1 +0,0 @@
-AAA
added in remote
their 100644 $(git rev-parse make-file:dir) dir
@@ -0,0 +1 @@
+CCC
EOF
test_cmp expect actual
'
test_expect_success 'merge-tree respects core.useReplaceRefs=false' '
test_commit merge-to &&
test_commit valid base &&
git reset --hard HEAD^ &&
test_commit malicious base &&
test_when_finished "git replace -d $(git rev-parse valid^0)" &&
git replace valid^0 malicious^0 &&
tree=$(git -c core.useReplaceRefs=true merge-tree --write-tree merge-to valid) &&
merged=$(git cat-file -p $tree:base) &&
test malicious = $merged &&
tree=$(git -c core.useReplaceRefs=false merge-tree --write-tree merge-to valid) &&
merged=$(git cat-file -p $tree:base) &&
test valid = $merged
'
test_done
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