From 7d782416cb5176d93a073bee8048163db544c80f Mon Sep 17 00:00:00 2001 From: David Turner Date: Fri, 17 Jul 2015 17:19:27 -0400 Subject: [PATCH] unpack-trees: don't update files with CE_WT_REMOVE set Don't update files in the worktree from cache entries which are flagged with CE_WT_REMOVE. When a user does a sparse checkout, git removes files that are marked with CE_WT_REMOVE (because they are out-of-scope for the sparse checkout). If those files are also marked CE_UPDATE (for instance, because they differ in the branch that is being checked out and the outgoing branch), git would previously recreate them. This patch prevents them from being recreated. These erroneously-created files would also interfere with merges, causing pre-merge revisions of out-of-scope files to appear in the worktree. apply_sparse_checkout() is the function where all "action" manipulation (add, delete, update files..) for sparse checkout occurs; it should not ask to delete and update both at the same time. Signed-off-by: Anatole Shaw Signed-off-by: David Turner Helped-by: Duy Nguyen Signed-off-by: Junio C Hamano --- t/t1090-sparse-checkout-scope.sh | 52 ++++++++++++++++++++++++++++++++++++++++ unpack-trees.c | 4 ++++ 2 files changed, 56 insertions(+) create mode 100755 t/t1090-sparse-checkout-scope.sh diff --git a/t/t1090-sparse-checkout-scope.sh b/t/t1090-sparse-checkout-scope.sh new file mode 100755 index 0000000000..1f61eb3e88 --- /dev/null +++ b/t/t1090-sparse-checkout-scope.sh @@ -0,0 +1,52 @@ +#!/bin/sh + +test_description='sparse checkout scope tests' + +. ./test-lib.sh + +test_expect_success 'setup' ' + echo "initial" >a && + echo "initial" >b && + echo "initial" >c && + git add a b c && + git commit -m "initial commit" +' + +test_expect_success 'create feature branch' ' + git checkout -b feature && + echo "modified" >b && + echo "modified" >c && + git add b c && + git commit -m "modification" +' + +test_expect_success 'perform sparse checkout of master' ' + git config --local --bool core.sparsecheckout true && + echo "!/*" >.git/info/sparse-checkout && + echo "/a" >>.git/info/sparse-checkout && + echo "/c" >>.git/info/sparse-checkout && + git checkout master && + test_path_is_file a && + test_path_is_missing b && + test_path_is_file c +' + +test_expect_success 'merge feature branch into sparse checkout of master' ' + git merge feature && + test_path_is_file a && + test_path_is_missing b && + test_path_is_file c && + test "$(cat c)" = "modified" +' + +test_expect_success 'return to full checkout of master' ' + git checkout feature && + echo "/*" >.git/info/sparse-checkout && + git checkout master && + test_path_is_file a && + test_path_is_file b && + test_path_is_file c && + test "$(cat b)" = "modified" +' + +test_done diff --git a/unpack-trees.c b/unpack-trees.c index 02f69aeea3..f177c0e4f7 100644 --- a/unpack-trees.c +++ b/unpack-trees.c @@ -227,6 +227,9 @@ static int check_updates(struct unpack_trees_options *o) struct cache_entry *ce = index->cache[i]; if (ce->ce_flags & CE_UPDATE) { + if (ce->ce_flags & CE_WT_REMOVE) + die("BUG: both update and delete flags are set on %s", + ce->name); display_progress(progress, ++cnt); ce->ce_flags &= ~CE_UPDATE; if (o->update && !o->dry_run) { @@ -290,6 +293,7 @@ static int apply_sparse_checkout(struct cache_entry *ce, struct unpack_trees_opt if (!(ce->ce_flags & CE_UPDATE) && verify_uptodate_sparse(ce, o)) return -1; ce->ce_flags |= CE_WT_REMOVE; + ce->ce_flags &= ~CE_UPDATE; } if (was_skip_worktree && !ce_skip_worktree(ce)) { if (verify_absent_sparse(ce, ERROR_WOULD_LOSE_UNTRACKED_OVERWRITTEN, o)) -- 2.11.4.GIT