path: root/read-cache.c
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authorJunio C Hamano <>2008-11-12 19:52:35 (GMT)
committerJunio C Hamano <>2008-11-12 22:16:50 (GMT)
commitfa7b3c2f752a10a5dca9989d4a1c4b93ffa7f943 (patch)
tree4d11b9d9ecba11077d0db6a837e9a069d2581323 /read-cache.c
parent0d641f75d1237b34d3cfb411a18c813cfacb4726 (diff)
checkout: Fix "initial checkout" detection
Earlier commit 5521883 (checkout: do not lose staged removal, 2008-09-07) tightened the rule to prevent switching branches from losing local changes, so that staged removal of paths can be protected, while attempting to keep a loophole to still allow a special case of switching out of an un-checked-out state. However, the loophole was made a bit too tight, and did not allow switching from one branch (in an un-checked-out state) to check out another branch. The change to builtin-checkout.c in this commit loosens it to allow this, by not insisting the original commit and the new commit to be the same. It also introduces a new function, is_index_unborn (and an associated macro, is_cache_unborn), to check if the repository is truly in an un-checked-out state more reliably, by making sure that $GIT_INDEX_FILE did not exist when populating the in-core index structure. A few places the earlier commit 5521883 added the check for the initial checkout condition are updated to use this function. Signed-off-by: Junio C Hamano <>
Diffstat (limited to 'read-cache.c')
1 files changed, 5 insertions, 0 deletions
diff --git a/read-cache.c b/read-cache.c
index 967f483..525d138 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -1239,6 +1239,11 @@ unmap:
die("index file corrupt");
+int is_index_unborn(struct index_state *istate)
+ return (!istate->cache_nr && !istate->alloc && !istate->timestamp);
int discard_index(struct index_state *istate)
istate->cache_nr = 0;