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Merge branch 'nd/maint-sparse-errors'

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* nd/maint-sparse-errors:
  Add explanation why we do not allow to sparse checkout to empty working tree
  sparse checkout: show error messages when worktree shaping fails
This commit is contained in:
Junio C Hamano 2011-10-13 19:03:18 -07:00
commit 08ec3b5e4d
2 changed files with 32 additions and 4 deletions
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16
t/t1011-read-tree-sparse-checkout.sh
View File

@ -234,4 +234,20 @@ test_expect_success 'read-tree --reset removes outside worktree' '
test_cmp empty result
'
test_expect_success 'print errors when failed to update worktree' '
echo sub >.git/info/sparse-checkout &&
git checkout -f init &&
mkdir sub &&
touch sub/added sub/addedtoo &&
test_must_fail git checkout top 2>actual &&
cat >expected <<\EOF &&
error: The following untracked working tree files would be overwritten by checkout:
sub/added
sub/addedtoo
Please move or remove them before you can switch branches.
Aborting
EOF
test_cmp expected actual
'
test_done

20
unpack-trees.c
View File

@ -1091,6 +1091,7 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options
*/
mark_new_skip_worktree(o->el, &o->result, CE_ADDED, CE_SKIP_WORKTREE | CE_NEW_SKIP_WORKTREE);
ret = 0;
for (i = 0; i < o->result.cache_nr; i++) {
struct cache_entry *ce = o->result.cache[i];
@ -1103,19 +1104,30 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options
* correct CE_NEW_SKIP_WORKTREE
*/
if (ce->ce_flags & CE_ADDED &&
verify_absent(ce, ERROR_WOULD_LOSE_UNTRACKED_OVERWRITTEN, o))
return -1;
verify_absent(ce, ERROR_WOULD_LOSE_UNTRACKED_OVERWRITTEN, o)) {
if (!o->show_all_errors)
goto return_failed;
ret = -1;
}
if (apply_sparse_checkout(ce, o)) {
if (!o->show_all_errors)
goto return_failed;
ret = -1;
goto done;
}
if (!ce_skip_worktree(ce))
empty_worktree = 0;
}
if (ret < 0)
goto return_failed;
/*
* Sparse checkout is meant to narrow down checkout area
* but it does not make sense to narrow down to empty working
* tree. This is usually a mistake in sparse checkout rules.
* Do not allow users to do that.
*/
if (o->result.cache_nr && empty_worktree) {
/* dubious---why should this fail??? */
ret = unpack_failed(o, "Sparse checkout leaves no entry on working directory");
goto done;
}