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author | Junio C Hamano <gitster@pobox.com> | 2015-11-05 12:18:11 -0800 |
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committer | Junio C Hamano <gitster@pobox.com> | 2015-11-05 12:18:11 -0800 |
commit | 5e6154fb145d66af36e10ef4db7e1d1e9502c501 (patch) | |
tree | 98e62ba6a698d6a4ed266b98e9a95bc5fe1b1c1a | |
parent | c378862b1ec23dd526e318b4c1bfbf826f8dd6b6 (diff) | |
parent | 72fac66bca302dbecbe42dfa0ddc7e42db2fe567 (diff) | |
download | git-5e6154fb145d66af36e10ef4db7e1d1e9502c501.tar.gz |
Merge branch 'jk/delete-modechange-conflict' into maint
Merging a branch that removes a path and another that changes the
mode bits on the same path should have conflicted at the path, but
it didn't and silently favoured the removal.
* jk/delete-modechange-conflict:
merge: detect delete/modechange conflict
t6031: generalize for recursive and resolve strategies
t6031: move triple-rename test to t3030
-rwxr-xr-x | git-merge-one-file.sh | 8 | ||||
-rw-r--r-- | merge-recursive.c | 8 | ||||
-rwxr-xr-x | t/t3030-merge-recursive.sh | 30 | ||||
-rwxr-xr-x | t/t6031-merge-filemode.sh | 100 | ||||
-rwxr-xr-x | t/t6031-merge-recursive.sh | 87 |
5 files changed, 144 insertions, 89 deletions
diff --git a/git-merge-one-file.sh b/git-merge-one-file.sh index 07dfeb8df4..cdc02af517 100755 --- a/git-merge-one-file.sh +++ b/git-merge-one-file.sh @@ -38,6 +38,14 @@ case "${1:-.}${2:-.}${3:-.}" in # Deleted in both or deleted in one and unchanged in the other # "$1.." | "$1.$1" | "$1$1.") + if { test -z "$6" && test "$5" != "$7"; } || + { test -z "$7" && test "$5" != "$6"; } + then + echo "ERROR: File $4 deleted on one branch but had its" >&2 + echo "ERROR: permissions changed on the other." >&2 + exit 1 + fi + if test -n "$2" then echo "Removing $4" diff --git a/merge-recursive.c b/merge-recursive.c index 44d85bea4b..b446df9c1d 100644 --- a/merge-recursive.c +++ b/merge-recursive.c @@ -1531,13 +1531,17 @@ static int read_sha1_strbuf(const unsigned char *sha1, struct strbuf *dst) } static int blob_unchanged(const unsigned char *o_sha, + unsigned o_mode, const unsigned char *a_sha, + unsigned a_mode, int renormalize, const char *path) { struct strbuf o = STRBUF_INIT; struct strbuf a = STRBUF_INIT; int ret = 0; /* assume changed for safety */ + if (a_mode != o_mode) + return 0; if (sha_eq(o_sha, a_sha)) return 1; if (!renormalize) @@ -1723,8 +1727,8 @@ static int process_entry(struct merge_options *o, } else if (o_sha && (!a_sha || !b_sha)) { /* Case A: Deleted in one */ if ((!a_sha && !b_sha) || - (!b_sha && blob_unchanged(o_sha, a_sha, normalize, path)) || - (!a_sha && blob_unchanged(o_sha, b_sha, normalize, path))) { + (!b_sha && blob_unchanged(o_sha, o_mode, a_sha, a_mode, normalize, path)) || + (!a_sha && blob_unchanged(o_sha, o_mode, b_sha, b_mode, normalize, path))) { /* Deleted in both or deleted in one and * unchanged in the other */ if (a_sha) diff --git a/t/t3030-merge-recursive.sh b/t/t3030-merge-recursive.sh index 82e18548c3..6224187632 100755 --- a/t/t3030-merge-recursive.sh +++ b/t/t3030-merge-recursive.sh @@ -629,5 +629,35 @@ test_expect_failure 'merge-recursive rename vs. rename/symlink' ' test_cmp expected actual ' +test_expect_success 'merging with triple rename across D/F conflict' ' + git reset --hard HEAD && + git checkout -b main && + git rm -rf . && + + echo "just a file" >sub1 && + mkdir -p sub2 && + echo content1 >sub2/file1 && + echo content2 >sub2/file2 && + echo content3 >sub2/file3 && + mkdir simple && + echo base >simple/bar && + git add -A && + test_tick && + git commit -m base && + + git checkout -b other && + echo more >>simple/bar && + test_tick && + git commit -a -m changesimplefile && + + git checkout main && + git rm sub1 && + git mv sub2 sub1 && + test_tick && + git commit -m changefiletodir && + + test_tick && + git merge other +' test_done diff --git a/t/t6031-merge-filemode.sh b/t/t6031-merge-filemode.sh new file mode 100755 index 0000000000..7d06461f13 --- /dev/null +++ b/t/t6031-merge-filemode.sh @@ -0,0 +1,100 @@ +#!/bin/sh + +test_description='merge: handle file mode' +. ./test-lib.sh + +test_expect_success 'set up mode change in one branch' ' + : >file1 && + git add file1 && + git commit -m initial && + git checkout -b a1 master && + : >dummy && + git add dummy && + git commit -m a && + git checkout -b b1 master && + test_chmod +x file1 && + git add file1 && + git commit -m b1 +' + +do_one_mode () { + strategy=$1 + us=$2 + them=$3 + test_expect_success "resolve single mode change ($strategy, $us)" ' + git checkout -f $us && + git merge -s $strategy $them && + git ls-files -s file1 | grep ^100755 + ' + + test_expect_success FILEMODE "verify executable bit on file ($strategy, $us)" ' + test -x file1 + ' +} + +do_one_mode recursive a1 b1 +do_one_mode recursive b1 a1 +do_one_mode resolve a1 b1 +do_one_mode resolve b1 a1 + +test_expect_success 'set up mode change in both branches' ' + git reset --hard HEAD && + git checkout -b a2 master && + : >file2 && + H=$(git hash-object file2) && + test_chmod +x file2 && + git commit -m a2 && + git checkout -b b2 master && + : >file2 && + git add file2 && + git commit -m b2 && + { + echo "100755 $H 2 file2" + echo "100644 $H 3 file2" + } >expect +' + +do_both_modes () { + strategy=$1 + test_expect_success "detect conflict on double mode change ($strategy)" ' + git reset --hard && + git checkout -f a2 && + test_must_fail git merge -s $strategy b2 && + git ls-files -u >actual && + test_cmp actual expect && + git ls-files -s file2 | grep ^100755 + ' + + test_expect_success FILEMODE "verify executable bit on file ($strategy)" ' + test -x file2 + ' +} + +# both sides are equivalent, so no need to run both ways +do_both_modes recursive +do_both_modes resolve + +test_expect_success 'set up delete/modechange scenario' ' + git reset --hard && + git checkout -b deletion master && + git rm file1 && + git commit -m deletion +' + +do_delete_modechange () { + strategy=$1 + us=$2 + them=$3 + test_expect_success "detect delete/modechange conflict ($strategy, $us)" ' + git reset --hard && + git checkout $us && + test_must_fail git merge -s $strategy $them + ' +} + +do_delete_modechange recursive b1 deletion +do_delete_modechange recursive deletion b1 +do_delete_modechange resolve b1 deletion +do_delete_modechange resolve deletion b1 + +test_done diff --git a/t/t6031-merge-recursive.sh b/t/t6031-merge-recursive.sh deleted file mode 100755 index 6464a16a19..0000000000 --- a/t/t6031-merge-recursive.sh +++ /dev/null @@ -1,87 +0,0 @@ -#!/bin/sh - -test_description='merge-recursive: handle file mode' -. ./test-lib.sh - -test_expect_success 'mode change in one branch: keep changed version' ' - : >file1 && - git add file1 && - git commit -m initial && - git checkout -b a1 master && - : >dummy && - git add dummy && - git commit -m a && - git checkout -b b1 master && - test_chmod +x file1 && - git add file1 && - git commit -m b1 && - git checkout a1 && - git merge-recursive master -- a1 b1 && - git ls-files -s file1 | grep ^100755 -' - -test_expect_success FILEMODE 'verify executable bit on file' ' - test -x file1 -' - -test_expect_success 'mode change in both branches: expect conflict' ' - git reset --hard HEAD && - git checkout -b a2 master && - : >file2 && - H=$(git hash-object file2) && - test_chmod +x file2 && - git commit -m a2 && - git checkout -b b2 master && - : >file2 && - git add file2 && - git commit -m b2 && - git checkout a2 && - ( - git merge-recursive master -- a2 b2 - test $? = 1 - ) && - git ls-files -u >actual && - ( - echo "100755 $H 2 file2" - echo "100644 $H 3 file2" - ) >expect && - test_cmp actual expect && - git ls-files -s file2 | grep ^100755 -' - -test_expect_success FILEMODE 'verify executable bit on file' ' - test -x file2 -' - -test_expect_success 'merging with triple rename across D/F conflict' ' - git reset --hard HEAD && - git checkout -b main && - git rm -rf . && - - echo "just a file" >sub1 && - mkdir -p sub2 && - echo content1 >sub2/file1 && - echo content2 >sub2/file2 && - echo content3 >sub2/file3 && - mkdir simple && - echo base >simple/bar && - git add -A && - test_tick && - git commit -m base && - - git checkout -b other && - echo more >>simple/bar && - test_tick && - git commit -a -m changesimplefile && - - git checkout main && - git rm sub1 && - git mv sub2 sub1 && - test_tick && - git commit -m changefiletodir && - - test_tick && - git merge other -' - -test_done |