mirror of
https://github.com/git/git.git
synced 2024-05-27 04:06:21 +02:00
94883b4302
git-merge-tree causes a null pointer dereference when a directory entry exists in only one or two of the three trees being compared with no corresponding entry in the other tree(s). When this happens, we want to handle the entry as a directory and not attempt to mark it as a file merge. Do this by setting the entries bit in the directory mask when the entry is missing or when it is a directory, only performing the file comparison when we know that a file entry exists. Reported-by: Andreas Jacobsen <andreas@andreasjacobsen.com> Signed-off-by: John Keeping <john@keeping.me.uk> Tested-by: Andreas Jacobsen <andreas@andreasjacobsen.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
356 lines
8.9 KiB
Bash
Executable File
356 lines
8.9 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2010 Will Palmer
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#
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test_description='git merge-tree'
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. ./test-lib.sh
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test_expect_success setup '
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test_commit "initial" "initial-file" "initial"
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'
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test_expect_success 'file add A, !B' '
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cat >expected <<\EXPECTED &&
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added in remote
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their 100644 43d5a8ed6ef6c00ff775008633f95787d088285d ONE
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@@ -0,0 +1 @@
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+AAA
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EXPECTED
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git reset --hard initial &&
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test_commit "add-a-not-b" "ONE" "AAA" &&
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git merge-tree initial initial add-a-not-b >actual &&
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test_cmp expected actual
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'
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test_expect_success 'file add !A, B' '
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cat >expected <<\EXPECTED &&
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EXPECTED
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git reset --hard initial &&
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test_commit "add-not-a-b" "ONE" "AAA" &&
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git merge-tree initial add-not-a-b initial >actual &&
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test_cmp expected actual
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'
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test_expect_success 'file add A, B (same)' '
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cat >expected <<\EXPECTED &&
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EXPECTED
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git reset --hard initial &&
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test_commit "add-a-b-same-A" "ONE" "AAA" &&
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git reset --hard initial &&
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test_commit "add-a-b-same-B" "ONE" "AAA" &&
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git merge-tree initial add-a-b-same-A add-a-b-same-B >actual &&
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test_cmp expected actual
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'
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test_expect_success 'file add A, B (different)' '
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cat >expected <<\EXPECTED &&
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added in both
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our 100644 43d5a8ed6ef6c00ff775008633f95787d088285d ONE
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their 100644 ba629238ca89489f2b350e196ca445e09d8bb834 ONE
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@@ -1 +1,5 @@
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+<<<<<<< .our
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AAA
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+=======
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+BBB
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+>>>>>>> .their
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EXPECTED
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git reset --hard initial &&
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test_commit "add-a-b-diff-A" "ONE" "AAA" &&
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git reset --hard initial &&
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test_commit "add-a-b-diff-B" "ONE" "BBB" &&
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git merge-tree initial add-a-b-diff-A add-a-b-diff-B >actual &&
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test_cmp expected actual
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'
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test_expect_success 'file change A, !B' '
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cat >expected <<\EXPECTED &&
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EXPECTED
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git reset --hard initial &&
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test_commit "change-a-not-b" "initial-file" "BBB" &&
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git merge-tree initial change-a-not-b initial >actual &&
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test_cmp expected actual
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'
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test_expect_success 'file change !A, B' '
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cat >expected <<\EXPECTED &&
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merged
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result 100644 ba629238ca89489f2b350e196ca445e09d8bb834 initial-file
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our 100644 e79c5e8f964493290a409888d5413a737e8e5dd5 initial-file
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@@ -1 +1 @@
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-initial
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+BBB
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EXPECTED
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git reset --hard initial &&
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test_commit "change-not-a-b" "initial-file" "BBB" &&
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git merge-tree initial initial change-not-a-b >actual &&
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test_cmp expected actual
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'
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test_expect_success 'file change A, B (same)' '
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cat >expected <<\EXPECTED &&
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EXPECTED
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git reset --hard initial &&
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test_commit "change-a-b-same-A" "initial-file" "AAA" &&
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git reset --hard initial &&
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test_commit "change-a-b-same-B" "initial-file" "AAA" &&
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git merge-tree initial change-a-b-same-A change-a-b-same-B >actual &&
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test_cmp expected actual
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'
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test_expect_success 'file change A, B (different)' '
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cat >expected <<\EXPECTED &&
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changed in both
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base 100644 e79c5e8f964493290a409888d5413a737e8e5dd5 initial-file
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our 100644 43d5a8ed6ef6c00ff775008633f95787d088285d initial-file
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their 100644 ba629238ca89489f2b350e196ca445e09d8bb834 initial-file
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@@ -1 +1,5 @@
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+<<<<<<< .our
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AAA
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+=======
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+BBB
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+>>>>>>> .their
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EXPECTED
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git reset --hard initial &&
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test_commit "change-a-b-diff-A" "initial-file" "AAA" &&
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git reset --hard initial &&
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test_commit "change-a-b-diff-B" "initial-file" "BBB" &&
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git merge-tree initial change-a-b-diff-A change-a-b-diff-B >actual &&
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test_cmp expected actual
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'
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test_expect_success 'file change A, B (mixed)' '
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cat >expected <<\EXPECTED &&
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changed in both
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base 100644 f4f1f998c7776568c4ff38f516d77fef9399b5a7 ONE
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our 100644 af14c2c3475337c73759d561ef70b59e5c731176 ONE
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their 100644 372d761493f524d44d59bd24700c3bdf914c973c ONE
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@@ -7,7 +7,11 @@
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AAA
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AAA
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AAA
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+<<<<<<< .our
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BBB
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+=======
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+CCC
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+>>>>>>> .their
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AAA
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AAA
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AAA
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EXPECTED
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git reset --hard initial &&
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test_commit "change-a-b-mix-base" "ONE" "
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AAA
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AAA
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AAA
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AAA
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AAA
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AAA
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AAA
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AAA
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AAA
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AAA
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AAA
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AAA
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AAA
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AAA
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AAA" &&
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test_commit "change-a-b-mix-A" "ONE" \
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"$(sed -e "1{s/AAA/BBB/;}" -e "10{s/AAA/BBB/;}" <ONE)" &&
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git reset --hard change-a-b-mix-base &&
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test_commit "change-a-b-mix-B" "ONE" \
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"$(sed -e "1{s/AAA/BBB/;}" -e "10{s/AAA/CCC/;}" <ONE)" &&
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git merge-tree change-a-b-mix-base change-a-b-mix-A change-a-b-mix-B \
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>actual &&
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test_cmp expected actual
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'
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test_expect_success 'file remove A, !B' '
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cat >expected <<\EXPECTED &&
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EXPECTED
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git reset --hard initial &&
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test_commit "rm-a-not-b-base" "ONE" "AAA" &&
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git rm ONE &&
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git commit -m "rm-a-not-b" &&
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git tag "rm-a-not-b" &&
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git merge-tree rm-a-not-b-base rm-a-not-b rm-a-not-b-base >actual &&
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test_cmp expected actual
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'
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test_expect_success 'file remove !A, B' '
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cat >expected <<\EXPECTED &&
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removed in remote
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base 100644 43d5a8ed6ef6c00ff775008633f95787d088285d ONE
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our 100644 43d5a8ed6ef6c00ff775008633f95787d088285d ONE
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@@ -1 +0,0 @@
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-AAA
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EXPECTED
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git reset --hard initial &&
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test_commit "rm-not-a-b-base" "ONE" "AAA" &&
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git rm ONE &&
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git commit -m "rm-not-a-b" &&
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git tag "rm-not-a-b" &&
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git merge-tree rm-a-not-b-base rm-a-not-b-base rm-a-not-b >actual &&
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test_cmp expected actual
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'
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test_expect_success 'file remove A, B (same)' '
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cat >expected <<\EXPECTED &&
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EXPECTED
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git reset --hard initial &&
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test_commit "rm-a-b-base" "ONE" "AAA" &&
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git rm ONE &&
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git commit -m "rm-a-b" &&
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git tag "rm-a-b" &&
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git merge-tree rm-a-b-base rm-a-b rm-a-b >actual &&
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test_cmp expected actual
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'
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test_expect_success 'file change A, remove B' '
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cat >expected <<\EXPECTED &&
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removed in remote
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base 100644 43d5a8ed6ef6c00ff775008633f95787d088285d ONE
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our 100644 ba629238ca89489f2b350e196ca445e09d8bb834 ONE
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@@ -1 +0,0 @@
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-BBB
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EXPECTED
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git reset --hard initial &&
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test_commit "change-a-rm-b-base" "ONE" "AAA" &&
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test_commit "change-a-rm-b-A" "ONE" "BBB" &&
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git reset --hard change-a-rm-b-base &&
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git rm ONE &&
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git commit -m "change-a-rm-b-B" &&
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git tag "change-a-rm-b-B" &&
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git merge-tree change-a-rm-b-base change-a-rm-b-A change-a-rm-b-B \
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>actual &&
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test_cmp expected actual
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'
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test_expect_success 'file remove A, change B' '
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cat >expected <<\EXPECTED &&
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removed in local
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base 100644 43d5a8ed6ef6c00ff775008633f95787d088285d ONE
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their 100644 ba629238ca89489f2b350e196ca445e09d8bb834 ONE
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EXPECTED
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git reset --hard initial &&
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test_commit "rm-a-change-b-base" "ONE" "AAA" &&
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git rm ONE &&
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git commit -m "rm-a-change-b-A" &&
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git tag "rm-a-change-b-A" &&
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git reset --hard rm-a-change-b-base &&
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test_commit "rm-a-change-b-B" "ONE" "BBB" &&
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git merge-tree rm-a-change-b-base rm-a-change-b-A rm-a-change-b-B \
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>actual &&
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test_cmp expected actual
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'
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test_expect_success 'tree add A, B (same)' '
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cat >expect <<-\EOF &&
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EOF
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git reset --hard initial &&
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mkdir sub &&
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test_commit "add sub/file" "sub/file" "file" add-tree-A &&
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git merge-tree initial add-tree-A add-tree-A >actual &&
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test_cmp expect actual
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'
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test_expect_success 'tree add A, B (different)' '
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cat >expect <<-\EOF &&
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added in both
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our 100644 43d5a8ed6ef6c00ff775008633f95787d088285d sub/file
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their 100644 ba629238ca89489f2b350e196ca445e09d8bb834 sub/file
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@@ -1 +1,5 @@
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+<<<<<<< .our
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AAA
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+=======
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+BBB
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+>>>>>>> .their
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EOF
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git reset --hard initial &&
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mkdir sub &&
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test_commit "add sub/file" "sub/file" "AAA" add-tree-a-b-A &&
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git reset --hard initial &&
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mkdir sub &&
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test_commit "add sub/file" "sub/file" "BBB" add-tree-a-b-B &&
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git merge-tree initial add-tree-a-b-A add-tree-a-b-B >actual &&
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test_cmp expect actual
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'
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test_expect_success 'tree unchanged A, removed B' '
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cat >expect <<-\EOF &&
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removed in remote
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base 100644 43d5a8ed6ef6c00ff775008633f95787d088285d sub/file
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our 100644 43d5a8ed6ef6c00ff775008633f95787d088285d sub/file
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@@ -1 +0,0 @@
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-AAA
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EOF
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git reset --hard initial &&
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mkdir sub &&
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test_commit "add sub/file" "sub/file" "AAA" tree-remove-b-initial &&
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git rm sub/file &&
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test_tick &&
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git commit -m "remove sub/file" &&
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git tag tree-remove-b-B &&
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git merge-tree tree-remove-b-initial tree-remove-b-initial tree-remove-b-B >actual &&
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test_cmp expect actual
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'
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test_expect_success 'turn file to tree' '
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git reset --hard initial &&
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rm initial-file &&
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mkdir initial-file &&
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test_commit "turn-file-to-tree" "initial-file/ONE" "CCC" &&
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git merge-tree initial initial turn-file-to-tree >actual &&
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cat >expect <<-\EOF &&
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added in remote
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their 100644 43aa4fdec31eb92e1fdc2f0ce6ea9ddb7c32bcf7 initial-file/ONE
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@@ -0,0 +1 @@
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+CCC
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removed in remote
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base 100644 e79c5e8f964493290a409888d5413a737e8e5dd5 initial-file
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our 100644 e79c5e8f964493290a409888d5413a737e8e5dd5 initial-file
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@@ -1 +0,0 @@
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-initial
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EOF
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test_cmp expect actual
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'
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test_expect_success 'turn tree to file' '
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git reset --hard initial &&
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mkdir dir &&
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test_commit "add-tree" "dir/path" "AAA" &&
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test_commit "add-another-tree" "dir/another" "BBB" &&
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rm -fr dir &&
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test_commit "make-file" "dir" "CCC" &&
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git merge-tree add-tree add-another-tree make-file >actual &&
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cat >expect <<-\EOF &&
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removed in remote
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base 100644 43d5a8ed6ef6c00ff775008633f95787d088285d dir/path
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our 100644 43d5a8ed6ef6c00ff775008633f95787d088285d dir/path
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@@ -1 +0,0 @@
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-AAA
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added in remote
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their 100644 43aa4fdec31eb92e1fdc2f0ce6ea9ddb7c32bcf7 dir
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@@ -0,0 +1 @@
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+CCC
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EOF
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test_cmp expect actual
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'
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test_done
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