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| author | Junio C Hamano <junkio@cox.net> | 2005-06-11 02:50:51 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-12 20:40:20 -0700 |
| commit | 32192e6622d78347448cfc0572827d6e64e0de28 (patch) | |
| tree | 460a1aa7e3734888a6e25721c11e39deede40084 /t/t1005-read-tree-m-2way-emu23.sh | |
| parent | e7f9bc411c8519468c33e1d882fb02cbe9c1ea55 (diff) | |
| download | git-32192e6622d78347448cfc0572827d6e64e0de28.tar.gz git-32192e6622d78347448cfc0572827d6e64e0de28.tar.xz | |
[PATCH] Finish making --emu23 equivalent to pure 2-way merge.
This adds #3ALT rule (and #2ALT rule for symmetry) to the
read-tree 3-way merge logic that collapses paths that are added
only in one branch and not in the other internally.
This makes --emu23 to succeed in the last remaining case where
the pure 2-way merge succeeded and earlier one failed. Running
diff between t1001 and t1005 test scripts shows that the only
difference between the two is that --emu23 can leave the states
into separate stages so that the user can use usual 3-way merge
resolution techniques to carry forward the local changes when
pure 2-way merge would have refused to run.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 't/t1005-read-tree-m-2way-emu23.sh')
| -rw-r--r-- | t/t1005-read-tree-m-2way-emu23.sh | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/t/t1005-read-tree-m-2way-emu23.sh b/t/t1005-read-tree-m-2way-emu23.sh index 495642e08..bb955ed39 100644 --- a/t/t1005-read-tree-m-2way-emu23.sh +++ b/t/t1005-read-tree-m-2way-emu23.sh @@ -80,6 +80,17 @@ test_expect_success \ git-ls-tree $treeM && git-diff-tree $treeH $treeM' +# "read-tree -m H I+H M" but I is empty so this is "read-tree -m H H M". +# +# bozbar [O && A && B && O==A && O!=B (#14) ==> B] take M by read-tree +# frotz [!O && !A && B (#2) ==> B] take M by read-tree +# nitfol [O && A && B && O==A && O==B (#15) ==> B] take M by read-tree +# rezrov [O && A && !B && O==A (#10) ==> no merge] removed by script +# +# Earlier one did not have #2ALT so taking M was done by the script, +# which also updated the work tree and making frotz clean. With #2ALT, +# this is resolved by read-tree itself and the path is left dirty +# because we are not testing "read-tree -u --emu23". test_expect_success \ '1, 2, 3 - no carry forward' \ 'rm -f .git/index && @@ -87,7 +98,7 @@ test_expect_success \ git-ls-files --stage >1-3.out && diff -u M.out 1-3.out && check_cache_at bozbar dirty && - check_cache_at frotz clean && # different from pure 2-way + check_cache_at frotz dirty && # same as pure 2-way again. check_cache_at nitfol dirty' echo '+100644 X 0 yomin' >expected @@ -103,8 +114,8 @@ test_expect_success \ check_cache_at yomin clean' # "read-tree -m H I+H M" where !H && !M; so (I+H) not being up-to-date -# should not matter, but without #3ALT this does not work. -: test_expect_success \ +# should not matter. Thanks to #3ALT, this is now possible. +test_expect_success \ '5 - carry forward local addition.' \ 'rm -f .git/index && echo yomin >yomin && @@ -218,6 +229,7 @@ test_expect_success \ # This is different from straight 2-way merge in that it leaves # three stages of bozbar in the index file without failing, so # the user can run git-diff-stages to examine the situation. +# With #2ALT, frotz is resolved internally. test_expect_success \ '16 - conflicting local change.' \ 'rm -f .git/index && @@ -228,7 +240,7 @@ test_expect_success \ 100644 X 1 bozbar 100644 X 2 bozbar 100644 X 3 bozbar -100644 X 3 frotz +100644 X 0 frotz 100644 X 0 nitfol 100644 X 1 rezrov 100644 X 2 rezrov |