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| author |  Junio C Hamano <gitster@pobox.com> | 2008-11-12 11:52:35 -0800 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2008-11-12 14:16:50 -0800 |
| commit | fa7b3c2f752a10a5dca9989d4a1c4b93ffa7f943 (patch) | |
| tree | 4d11b9d9ecba11077d0db6a837e9a069d2581323 | |
| parent | Remove the period after the git-check-attr summary (diff) | |
| download | tgif-fa7b3c2f752a10a5dca9989d4a1c4b93ffa7f943.tar.xz | |
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 <gitster@pobox.com>
| -rw-r--r-- | builtin-checkout.c | 3 | ||||
| -rw-r--r-- | builtin-read-tree.c | 2 | ||||
| -rw-r--r-- | cache.h | 2 | ||||
| -rw-r--r-- | read-cache.c | 5 |
4 files changed, 9 insertions, 3 deletions
diff --git a/builtin-checkout.c b/builtin-checkout.c index 05eee4ecc7..25845cdd5e 100644 --- a/builtin-checkout.c +++ b/builtin-checkout.c @@ -269,8 +269,7 @@ static int merge_working_tree(struct checkout_opts *opts, } /* 2-way merge to the new branch */ - topts.initial_checkout = (!active_nr && - (old->commit == new->commit)); + topts.initial_checkout = is_cache_unborn(); topts.update = 1; topts.merge = 1; topts.gently = opts->merge; diff --git a/builtin-read-tree.c b/builtin-read-tree.c index 0706c95818..38fef34d3f 100644 --- a/builtin-read-tree.c +++ b/builtin-read-tree.c @@ -206,7 +206,7 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) break; case 2: opts.fn = twoway_merge; - opts.initial_checkout = !active_nr; + opts.initial_checkout = is_cache_unborn(); break; case 3: default: @@ -255,6 +255,7 @@ static inline void remove_name_hash(struct cache_entry *ce) #define read_cache() read_index(&the_index) #define read_cache_from(path) read_index_from(&the_index, (path)) +#define is_cache_unborn() is_index_unborn(&the_index) #define read_cache_unmerged() read_index_unmerged(&the_index) #define write_cache(newfd, cache, entries) write_index(&the_index, (newfd)) #define discard_cache() discard_index(&the_index) @@ -360,6 +361,7 @@ extern int init_db(const char *template_dir, unsigned int flags); /* Initialize and use the cache information */ extern int read_index(struct index_state *); extern int read_index_from(struct index_state *, const char *path); +extern int is_index_unborn(struct index_state *); extern int read_index_unmerged(struct index_state *); extern int write_index(const struct index_state *, int newfd); extern int discard_index(struct index_state *); diff --git a/read-cache.c b/read-cache.c index 967f483f78..525d138e90 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; |