#!/bin/sh # # ,---E--. *H----------. * marks !TREESAME parent paths # / \ / \* # *A--*B---D--*F-*G---------K-*L-*M # \ /* \ / # `-C-' `-*I-*J # # A creates "file", B and F change it. # Odd merge G takes the old version from B. # I changes it, but J reverts it, so K is TREESAME to both parents. # H and L both change "file", and M merges those changes. test_description='TREESAME and limiting' GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME . ./test-lib.sh note () { git tag "$1" } unnote () { git name-rev --tags --stdin | sed -e "s|$OID_REGEX (tags/\([^)]*\))\([ ]\)|\1\2|g" } test_expect_success setup ' test_commit "Initial file" file "Hi there" A && git branch other-branch && test_commit "file=Hello" file "Hello" B && git branch third-branch && git checkout other-branch && test_commit "Added other" other "Hello" C && git checkout main && test_merge D other-branch && git checkout third-branch && test_commit "Third file" third "Nothing" E && git checkout main && test_commit "file=Blah" file "Blah" F && test_tick && git merge --no-commit third-branch && git checkout third-branch file && git commit && note G && git branch fiddler-branch && git checkout -b part2-branch && test_commit "file=Part 2" file "Part 2" H && git checkout fiddler-branch && test_commit "Bad commit" file "Silly" I && test_tick && git revert I && note J && git checkout main && test_tick && git merge --no-ff fiddler-branch && note K && test_commit "file=Part 1" file "Part 1" L && test_tick && test_must_fail git merge part2-branch && test_commit M file "Parts 1+2" ' check_outcome () { outcome=$1 shift case "$1" in *"("*) FMT="%P %H | %s" munge_actual=" s/^\([^ ]*\) \([^ ]*\) .*/(\1)\2/ s/ //g s/()// " ;; *) FMT="%H | %s" munge_actual="s/^\([^ ]*\) .*/\1/" ;; esac && printf "%s\n" $1 >expect && shift param="$*" && test_expect_$outcome "log $param" ' git log --format="$FMT" $param | unnote >actual && sed -e "$munge_actual" <actual >check && test_cmp expect check ' } check_result () { check_outcome success "$@" } # Odd merge G drops a change in F. Important that G is listed in all # except the most basic list. Achieving this means normal merge D will also be # shown in normal full-history, as we can't distinguish unless we do a # simplification pass. After simplification, D is dropped but G remains. # Also, merge simplification of G should not drop the parent B that the default # simple history follows. check_result 'M L K J I H G F E D C B A' check_result '(LH)M (K)L (GJ)K (I)J (G)I (G)H (FE)G (D)F (B)E (BC)D (A)C (A)B A' check_result 'M H L K J I G E F D C B A' --topo-order check_result 'M L H B A' -- file check_result '(LH)M (B)L (B)H (A)B A' --parents -- file check_result 'M L J I H G F D B A' --full-history -- file check_result '(LH)M (K)L (GJ)K (I)J (G)I (G)H (FB)G (D)F (BA)D (A)B A' --full-history --parents -- file check_result '(LH)M (G)H (J)L (I)J (G)I (FB)G (B)F (A)B A' --simplify-merges -- file check_result 'M L K G F D B A' --first-parent check_result 'M L G F B A' --first-parent -- file # Check that odd merge G remains shown when F is the bottom. check_result 'M L K J I H G E' F..M check_result 'M H L K J I G E' F..M --topo-order check_result 'M L H' F..M -- file check_result '(LH)M (B)L (B)H' --parents F..M -- file check_result 'M L J I H G' F..M --full-history -- file check_result '(LH)M (K)L (GJ)K (I)J (G)I (G)H (FB)G' F..M --full-history --parents -- file check_result '(LH)M (G)H (J)L (I)J (G)I (FB)G' F..M --simplify-merges -- file check_result 'M L K J I H G' F..M --ancestry-path check_result 'M L J I H G' F..M --ancestry-path -- file check_result '(LH)M (K)L (GJ)K (I)J (G)I (G)H (FE)G' F..M --ancestry-path --parents -- file check_result '(LH)M (G)H (J)L (I)J (G)I (FE)G' F..M --ancestry-path --simplify-merges -- file check_result 'M L K G' F..M --first-parent check_result 'M L G' F..M --first-parent -- file # Note that G is pruned when E is the bottom, even if it's the same commit list # If we want history since E, then we're quite happy to ignore G that took E. check_result 'M L K J I H G' E..M --ancestry-path check_result 'M L J I H' E..M --ancestry-path -- file check_result '(LH)M (K)L (EJ)K (I)J (E)I (E)H' E..M --ancestry-path --parents -- file check_result '(LH)M (E)H (J)L (I)J (E)I' E..M --ancestry-path --simplify-merges -- file # Should still be able to ignore I-J branch in simple log, despite limiting # to G. check_result 'M L K J I H' G..M check_result 'M H L K J I' G..M --topo-order check_result 'M L H' G..M -- file check_result '(LH)M (G)L (G)H' G..M --parents -- file check_result 'M L J I H' G..M --full-history -- file check_result 'M L K J I H' G..M --full-history --parents -- file check_result 'M H L J I' G..M --simplify-merges -- file check_result 'M L K J I H' G..M --ancestry-path check_result 'M L J I H' G..M --ancestry-path -- file check_result 'M L K J I H' G..M --ancestry-path --parents -- file check_result 'M H L J I' G..M --ancestry-path --simplify-merges -- file # B..F should be able to simplify the merge D from irrelevant side branch C. # Default log should also be free to follow B-D, and ignore C. # But --full-history shouldn't drop D on its own - without simplification, # we can't decide if the merge from INTERESTING commit C was sensible. check_result 'F D C' B..F check_result 'F' B..F -- file check_result '(B)F' B..F --parents -- file check_result 'F D' B..F --full-history -- file check_result '(D)F (BA)D' B..F --full-history --parents -- file check_result '(B)F' B..F --simplify-merges -- file check_result 'F D' B..F --ancestry-path check_result 'F' B..F --ancestry-path -- file check_result 'F' B..F --ancestry-path --parents -- file check_result 'F' B..F --ancestry-path --simplify-merges -- file check_result 'F D' B..F --first-parent check_result 'F' B..F --first-parent -- file # E...F should be equivalent to E F ^B, and be able to drop D as above. check_result 'F' E F ^B -- file # includes D check_result 'F' E...F -- file # includes D # Any sort of full history of C..F should show D, as it's the connection to C, # and it differs from it. check_result 'F D B' C..F check_result 'F B' C..F -- file check_result '(B)F (A)B' C..F --parents -- file check_result 'F D B' C..F --full-history -- file check_result '(D)F (BC)D (A)B' C..F --full-history --parents -- file check_result '(D)F (BC)D (A)B' C..F --simplify-merges -- file check_result 'F D' C..F --ancestry-path check_result 'F D' C..F --ancestry-path -- file check_result 'F D' C..F --ancestry-path --parents -- file check_result 'F D' C..F --ancestry-path --simplify-merges -- file check_result 'F D B' C..F --first-parent check_result 'F B' C..F --first-parent -- file test_done