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Merge branch 'cb/maint-merge-recursive-fix' into maint
* cb/maint-merge-recursive-fix: merge-recursive: do not clobber untracked working tree garbage modify/delete conflict resolution overwrites untracked file Conflicts: builtin-merge-recursive.c
This commit is contained in:
commit
9e8f6e7f6e
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@ -447,6 +447,30 @@ static void flush_buffer(int fd, const char *buf, unsigned long size)
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}
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}
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static int would_lose_untracked(const char *path)
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{
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int pos = cache_name_pos(path, strlen(path));
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if (pos < 0)
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pos = -1 - pos;
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while (pos < active_nr &&
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!strcmp(path, active_cache[pos]->name)) {
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/*
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* If stage #0, it is definitely tracked.
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* If it has stage #2 then it was tracked
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* before this merge started. All other
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* cases the path was not tracked.
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*/
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switch (ce_stage(active_cache[pos])) {
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case 0:
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case 2:
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return 0;
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}
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pos++;
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}
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return file_exists(path);
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}
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static int make_room_for_path(const char *path)
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{
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int status;
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@ -462,6 +486,14 @@ static int make_room_for_path(const char *path)
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die(msg, path, "");
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}
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/*
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* Do not unlink a file in the work tree if we are not
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* tracking it.
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*/
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if (would_lose_untracked(path))
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return error("refusing to lose untracked file at '%s'",
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path);
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/* Successful unlink is good.. */
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if (!unlink(path))
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return 0;
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87
t/t7607-merge-overwrite.sh
Executable file
87
t/t7607-merge-overwrite.sh
Executable file
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@ -0,0 +1,87 @@
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#!/bin/sh
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test_description='git-merge
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Do not overwrite changes.'
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. ./test-lib.sh
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test_expect_success 'setup' '
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echo c0 > c0.c &&
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git add c0.c &&
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git commit -m c0 &&
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git tag c0 &&
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echo c1 > c1.c &&
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git add c1.c &&
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git commit -m c1 &&
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git tag c1 &&
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git reset --hard c0 &&
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echo c2 > c2.c &&
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git add c2.c &&
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git commit -m c2 &&
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git tag c2 &&
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git reset --hard c1 &&
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echo "c1 a" > c1.c &&
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git add c1.c &&
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git commit -m "c1 a" &&
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git tag c1a &&
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echo "VERY IMPORTANT CHANGES" > important
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'
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test_expect_success 'will not overwrite untracked file' '
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git reset --hard c1 &&
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cat important > c2.c &&
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! git merge c2 &&
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test_cmp important c2.c
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'
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test_expect_success 'will not overwrite new file' '
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git reset --hard c1 &&
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cat important > c2.c &&
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git add c2.c &&
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! git merge c2 &&
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test_cmp important c2.c
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'
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test_expect_success 'will not overwrite staged changes' '
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git reset --hard c1 &&
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cat important > c2.c &&
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git add c2.c &&
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rm c2.c &&
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! git merge c2 &&
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git checkout c2.c &&
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test_cmp important c2.c
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'
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test_expect_success 'will not overwrite removed file' '
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git reset --hard c1 &&
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git rm c1.c &&
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git commit -m "rm c1.c" &&
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cat important > c1.c &&
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! git merge c1a &&
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test_cmp important c1.c
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'
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test_expect_success 'will not overwrite re-added file' '
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git reset --hard c1 &&
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git rm c1.c &&
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git commit -m "rm c1.c" &&
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cat important > c1.c &&
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git add c1.c &&
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! git merge c1a &&
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test_cmp important c1.c
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'
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test_expect_success 'will not overwrite removed file with staged changes' '
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git reset --hard c1 &&
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git rm c1.c &&
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git commit -m "rm c1.c" &&
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cat important > c1.c &&
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git add c1.c &&
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rm c1.c &&
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! git merge c1a &&
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git checkout c1.c &&
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test_cmp important c1.c
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'
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test_done
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