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417 lines
11 KiB
417 lines
11 KiB
#!/bin/sh |
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# |
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# Copyright (c) 2005 Junio C Hamano |
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# |
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test_description='Two way merge with read-tree -m $H $M |
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This test tries two-way merge (aka fast-forward with carry forward). |
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There is the head (called H) and another commit (called M), which is |
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simply ahead of H. The index and the work tree contains a state that |
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is derived from H, but may also have local changes. This test checks |
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all the combinations described in the two-tree merge "carry forward" |
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rules, found in <Documentation/git read-tree.txt>. |
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In the test, these paths are used: |
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bozbar - in H, stays in M, modified from bozbar to gnusto |
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frotz - not in H added in M |
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nitfol - in H, stays in M unmodified |
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rezrov - in H, deleted in M |
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yomin - not in H or M |
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' |
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. ./test-lib.sh |
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. "$TEST_DIRECTORY"/lib-read-tree.sh |
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read_tree_twoway () { |
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git read-tree -m "$1" "$2" && git ls-files --stage |
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} |
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compare_change () { |
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sed -n >current \ |
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-e '/^--- /d; /^+++ /d; /^@@ /d;' \ |
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-e 's/^\([-+][0-7][0-7][0-7][0-7][0-7][0-7]\) '"$OID_REGEX"' /\1 X /p' \ |
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"$1" |
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test_cmp expected current |
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} |
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check_cache_at () { |
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clean_if_empty=$(git diff-files -- "$1") |
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case "$clean_if_empty" in |
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'') echo "$1: clean" ;; |
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?*) echo "$1: dirty" ;; |
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esac |
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case "$2,$clean_if_empty" in |
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clean,) : ;; |
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clean,?*) false ;; |
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dirty,) false ;; |
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dirty,?*) : ;; |
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esac |
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} |
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cat >bozbar-old <<\EOF |
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This is a sample file used in two-way fast-forward merge |
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tests. Its second line ends with a magic word bozbar |
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which will be modified by the merged head to gnusto. |
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It has some extra lines so that external tools can |
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successfully merge independent changes made to later |
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lines (such as this one), avoiding line conflicts. |
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EOF |
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sed -e 's/bozbar/gnusto (earlier bozbar)/' bozbar-old >bozbar-new |
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test_expect_success 'setup' ' |
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echo frotz >frotz && |
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echo nitfol >nitfol && |
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cat bozbar-old >bozbar && |
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echo rezrov >rezrov && |
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echo yomin >yomin && |
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git update-index --add nitfol bozbar rezrov && |
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treeH=$(git write-tree) && |
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echo treeH $treeH && |
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git ls-tree $treeH && |
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cat bozbar-new >bozbar && |
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git update-index --add frotz bozbar --force-remove rezrov && |
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git ls-files --stage >M.out && |
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treeM=$(git write-tree) && |
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echo treeM $treeM && |
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git ls-tree $treeM && |
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git diff-tree $treeH $treeM |
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' |
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test_expect_success '1, 2, 3 - no carry forward' ' |
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rm -f .git/index && |
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read_tree_twoway $treeH $treeM && |
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git ls-files --stage >1-3.out && |
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test_cmp M.out 1-3.out && |
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check_cache_at bozbar dirty && |
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check_cache_at frotz dirty && |
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check_cache_at nitfol dirty |
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' |
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echo '+100644 X 0 yomin' >expected |
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test_expect_success '4 - carry forward local addition.' ' |
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rm -f .git/index && |
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read_tree_must_succeed $treeH && |
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git checkout-index -u -f -q -a && |
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git update-index --add yomin && |
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read_tree_twoway $treeH $treeM && |
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git ls-files --stage >4.out && |
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test_must_fail git diff --no-index M.out 4.out >4diff.out && |
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compare_change 4diff.out expected && |
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check_cache_at yomin clean |
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' |
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test_expect_success '5 - carry forward local addition.' ' |
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rm -f .git/index && |
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read_tree_must_succeed $treeH && |
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git checkout-index -u -f -q -a && |
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echo yomin >yomin && |
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git update-index --add yomin && |
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echo yomin yomin >yomin && |
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read_tree_twoway $treeH $treeM && |
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git ls-files --stage >5.out && |
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test_must_fail git diff --no-index M.out 5.out >5diff.out && |
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compare_change 5diff.out expected && |
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check_cache_at yomin dirty |
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' |
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test_expect_success '6 - local addition already has the same.' ' |
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rm -f .git/index && |
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read_tree_must_succeed $treeH && |
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git checkout-index -u -f -q -a && |
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git update-index --add frotz && |
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read_tree_twoway $treeH $treeM && |
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git ls-files --stage >6.out && |
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test_cmp M.out 6.out && |
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check_cache_at frotz clean |
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' |
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test_expect_success '7 - local addition already has the same.' ' |
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rm -f .git/index && |
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read_tree_must_succeed $treeH && |
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git checkout-index -u -f -q -a && |
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echo frotz >frotz && |
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git update-index --add frotz && |
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echo frotz frotz >frotz && |
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read_tree_twoway $treeH $treeM && |
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git ls-files --stage >7.out && |
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test_cmp M.out 7.out && |
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check_cache_at frotz dirty |
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' |
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test_expect_success '8 - conflicting addition.' ' |
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rm -f .git/index && |
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read_tree_must_succeed $treeH && |
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git checkout-index -u -f -q -a && |
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echo frotz frotz >frotz && |
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git update-index --add frotz && |
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if read_tree_twoway $treeH $treeM; then false; else :; fi |
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' |
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test_expect_success '9 - conflicting addition.' ' |
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rm -f .git/index && |
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read_tree_must_succeed $treeH && |
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git checkout-index -u -f -q -a && |
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echo frotz frotz >frotz && |
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git update-index --add frotz && |
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echo frotz >frotz && |
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if read_tree_twoway $treeH $treeM; then false; else :; fi |
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' |
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test_expect_success '10 - path removed.' ' |
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rm -f .git/index && |
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read_tree_must_succeed $treeH && |
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git checkout-index -u -f -q -a && |
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echo rezrov >rezrov && |
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git update-index --add rezrov && |
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read_tree_twoway $treeH $treeM && |
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git ls-files --stage >10.out && |
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test_cmp M.out 10.out |
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' |
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test_expect_success '11 - dirty path removed.' ' |
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rm -f .git/index && |
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read_tree_must_succeed $treeH && |
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git checkout-index -u -f -q -a && |
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echo rezrov >rezrov && |
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git update-index --add rezrov && |
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echo rezrov rezrov >rezrov && |
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if read_tree_twoway $treeH $treeM; then false; else :; fi |
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' |
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test_expect_success '12 - unmatching local changes being removed.' ' |
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rm -f .git/index && |
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read_tree_must_succeed $treeH && |
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git checkout-index -u -f -q -a && |
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echo rezrov rezrov >rezrov && |
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git update-index --add rezrov && |
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if read_tree_twoway $treeH $treeM; then false; else :; fi |
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' |
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test_expect_success '13 - unmatching local changes being removed.' ' |
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rm -f .git/index && |
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read_tree_must_succeed $treeH && |
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git checkout-index -u -f -q -a && |
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echo rezrov rezrov >rezrov && |
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git update-index --add rezrov && |
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echo rezrov >rezrov && |
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if read_tree_twoway $treeH $treeM; then false; else :; fi |
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' |
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cat >expected <<EOF |
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-100644 X 0 nitfol |
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+100644 X 0 nitfol |
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EOF |
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test_expect_success '14 - unchanged in two heads.' ' |
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rm -f .git/index && |
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read_tree_must_succeed $treeH && |
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git checkout-index -u -f -q -a && |
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echo nitfol nitfol >nitfol && |
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git update-index --add nitfol && |
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read_tree_twoway $treeH $treeM && |
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git ls-files --stage >14.out && |
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test_must_fail git diff --no-index M.out 14.out >14diff.out && |
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compare_change 14diff.out expected && |
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check_cache_at nitfol clean |
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' |
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test_expect_success '15 - unchanged in two heads.' ' |
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rm -f .git/index && |
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read_tree_must_succeed $treeH && |
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git checkout-index -u -f -q -a && |
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echo nitfol nitfol >nitfol && |
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git update-index --add nitfol && |
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echo nitfol nitfol nitfol >nitfol && |
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read_tree_twoway $treeH $treeM && |
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git ls-files --stage >15.out && |
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test_must_fail git diff --no-index M.out 15.out >15diff.out && |
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compare_change 15diff.out expected && |
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check_cache_at nitfol dirty |
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' |
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test_expect_success '16 - conflicting local change.' ' |
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rm -f .git/index && |
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read_tree_must_succeed $treeH && |
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git checkout-index -u -f -q -a && |
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echo bozbar bozbar >bozbar && |
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git update-index --add bozbar && |
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if read_tree_twoway $treeH $treeM; then false; else :; fi |
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' |
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test_expect_success '17 - conflicting local change.' ' |
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rm -f .git/index && |
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read_tree_must_succeed $treeH && |
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git checkout-index -u -f -q -a && |
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echo bozbar bozbar >bozbar && |
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git update-index --add bozbar && |
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echo bozbar bozbar bozbar >bozbar && |
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if read_tree_twoway $treeH $treeM; then false; else :; fi |
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' |
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test_expect_success '18 - local change already having a good result.' ' |
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rm -f .git/index && |
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read_tree_must_succeed $treeH && |
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git checkout-index -u -f -q -a && |
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cat bozbar-new >bozbar && |
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git update-index --add bozbar && |
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read_tree_twoway $treeH $treeM && |
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git ls-files --stage >18.out && |
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test_cmp M.out 18.out && |
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check_cache_at bozbar clean |
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' |
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test_expect_success '19 - local change already having a good result, further modified.' ' |
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rm -f .git/index && |
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read_tree_must_succeed $treeH && |
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git checkout-index -u -f -q -a && |
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cat bozbar-new >bozbar && |
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git update-index --add bozbar && |
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echo gnusto gnusto >bozbar && |
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read_tree_twoway $treeH $treeM && |
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git ls-files --stage >19.out && |
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test_cmp M.out 19.out && |
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check_cache_at bozbar dirty |
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' |
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test_expect_success '20 - no local change, use new tree.' ' |
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rm -f .git/index && |
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read_tree_must_succeed $treeH && |
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git checkout-index -u -f -q -a && |
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cat bozbar-old >bozbar && |
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git update-index --add bozbar && |
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read_tree_twoway $treeH $treeM && |
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git ls-files --stage >20.out && |
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test_cmp M.out 20.out && |
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check_cache_at bozbar dirty |
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' |
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test_expect_success '21 - no local change, dirty cache.' ' |
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rm -f .git/index && |
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read_tree_must_succeed $treeH && |
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git checkout-index -u -f -q -a && |
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cat bozbar-old >bozbar && |
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git update-index --add bozbar && |
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echo gnusto gnusto >bozbar && |
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if read_tree_twoway $treeH $treeM; then false; else :; fi |
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' |
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# This fails with straight two-way fast-forward. |
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test_expect_success '22 - local change cache updated.' ' |
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rm -f .git/index && |
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read_tree_must_succeed $treeH && |
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git checkout-index -u -f -q -a && |
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sed -e "s/such as/SUCH AS/" bozbar-old >bozbar && |
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git update-index --add bozbar && |
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if read_tree_twoway $treeH $treeM; then false; else :; fi |
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' |
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# Also make sure we did not break DF vs DF/DF case. |
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test_expect_success 'DF vs DF/DF case setup.' ' |
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rm -f .git/index && |
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echo DF >DF && |
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git update-index --add DF && |
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treeDF=$(git write-tree) && |
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echo treeDF $treeDF && |
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git ls-tree $treeDF && |
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rm -f DF && |
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mkdir DF && |
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echo DF/DF >DF/DF && |
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git update-index --add --remove DF DF/DF && |
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treeDFDF=$(git write-tree) && |
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echo treeDFDF $treeDFDF && |
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git ls-tree $treeDFDF && |
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git ls-files --stage >DFDF.out |
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' |
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test_expect_success 'DF vs DF/DF case test.' ' |
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rm -f .git/index && |
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rm -fr DF && |
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echo DF >DF && |
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git update-index --add DF && |
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read_tree_twoway $treeDF $treeDFDF && |
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git ls-files --stage >DFDFcheck.out && |
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test_cmp DFDF.out DFDFcheck.out && |
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check_cache_at DF/DF dirty && |
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: |
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' |
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test_expect_success 'a/b (untracked) vs a case setup.' ' |
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rm -f .git/index && |
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: >a && |
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git update-index --add a && |
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treeM=$(git write-tree) && |
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echo treeM $treeM && |
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git ls-tree $treeM && |
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git ls-files --stage >treeM.out && |
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rm -f a && |
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git update-index --remove a && |
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mkdir a && |
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: >a/b && |
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treeH=$(git write-tree) && |
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echo treeH $treeH && |
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git ls-tree $treeH |
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' |
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test_expect_success 'a/b (untracked) vs a, plus c/d case test.' ' |
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read_tree_u_must_fail -u -m "$treeH" "$treeM" && |
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git ls-files --stage && |
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test -f a/b |
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' |
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test_expect_success 'read-tree supports the super-prefix' ' |
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cat <<-EOF >expect && |
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error: Updating '\''fictional/a'\'' would lose untracked files in it |
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EOF |
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test_must_fail git --super-prefix fictional/ read-tree -u -m "$treeH" "$treeM" 2>actual && |
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test_cmp expect actual |
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' |
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test_expect_success 'a/b vs a, plus c/d case setup.' ' |
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rm -f .git/index && |
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rm -fr a && |
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: >a && |
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mkdir c && |
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: >c/d && |
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git update-index --add a c/d && |
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treeM=$(git write-tree) && |
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echo treeM $treeM && |
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git ls-tree $treeM && |
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git ls-files --stage >treeM.out && |
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rm -f a && |
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mkdir a && |
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: >a/b && |
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git update-index --add --remove a a/b && |
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treeH=$(git write-tree) && |
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echo treeH $treeH && |
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git ls-tree $treeH |
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' |
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test_expect_success 'a/b vs a, plus c/d case test.' ' |
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read_tree_u_must_succeed -u -m "$treeH" "$treeM" && |
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git ls-files --stage | tee >treeMcheck.out && |
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test_cmp treeM.out treeMcheck.out |
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' |
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test_expect_success '-m references the correct modified tree' ' |
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echo >file-a && |
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echo >file-b && |
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git add file-a file-b && |
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git commit -a -m "test for correct modified tree" && |
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git branch initial-mod && |
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echo b >file-b && |
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git commit -a -m "B" && |
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echo a >file-a && |
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git add file-a && |
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git ls-tree $(git write-tree) file-a >expect && |
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read_tree_must_succeed -m HEAD initial-mod && |
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git ls-tree $(git write-tree) file-a >actual && |
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test_cmp expect actual |
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' |
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test_done
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