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author | Junio C Hamano <gitster@pobox.com> | 2013-01-23 13:55:30 -0800 |
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committer | Junio C Hamano <gitster@pobox.com> | 2013-01-24 14:37:23 -0800 |
commit | 75e5c0dc5529aed42122b3a774e6b17383e51b66 (patch) | |
tree | 78600fde190fede594ec314d81bbc817220a8bf6 /builtin/push.c | |
parent | 0f4d498dbecbc1b6da66f926df3bc12446bd44dd (diff) | |
download | git-75e5c0dc5529aed42122b3a774e6b17383e51b66.tar.gz git-75e5c0dc5529aed42122b3a774e6b17383e51b66.tar.xz |
push: introduce REJECT_FETCH_FIRST and REJECT_NEEDS_FORCE
When we push to update an existing ref, if:
* the object at the tip of the remote is not a commit; or
* the object we are pushing is not a commit,
it won't be correct to suggest to fetch, integrate and push again,
as the old and new objects will not "merge". We should explain that
the push must be forced when there is a non-committish object is
involved in such a case.
If we do not have the current object at the tip of the remote, we do
not even know that object, when fetched, is something that can be
merged. In such a case, suggesting to pull first just like
non-fast-forward case may not be technically correct, but in
practice, most such failures are seen when you try to push your work
to a branch without knowing that somebody else already pushed to
update the same branch since you forked, so "pull first" would work
as a suggestion most of the time. And if the object at the tip is
not a commit, "pull first" will fail, without making any permanent
damage. As a side effect, it also makes the error message the user
will get during the next "push" attempt easier to understand, now
the user is aware that a non-commit object is involved.
In these cases, the current code already rejects such a push on the
client end, but we used the same error and advice messages as the
ones used when rejecting a non-fast-forward push, i.e. pull from
there and integrate before pushing again.
Introduce new rejection reasons and reword the messages
appropriately.
[jc: with help by Peff on message details]
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/push.c')
-rw-r--r-- | builtin/push.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/builtin/push.c b/builtin/push.c index 8491e431e..a2b3fbed6 100644 --- a/builtin/push.c +++ b/builtin/push.c @@ -220,10 +220,22 @@ static const char message_advice_checkout_pull_push[] = "(e.g. 'git pull') before pushing again.\n" "See the 'Note about fast-forwards' in 'git push --help' for details."); +static const char message_advice_ref_fetch_first[] = + N_("Updates were rejected because the remote contains work that you do\n" + "not have locally. This is usually caused by another repository pushing\n" + "to the same ref. You may want to first merge the remote changes (e.g.,\n" + "'git pull') before pushing again.\n" + "See the 'Note about fast-forwards' in 'git push --help' for details."); + static const char message_advice_ref_already_exists[] = N_("Updates were rejected because the destination reference already exists\n" "in the remote."); +static const char message_advice_ref_needs_force[] = + N_("You cannot update a remote ref that points at a non-commit object,\n" + "or update a remote ref to make it point at a non-commit object,\n" + "without using the '--force' option.\n"); + static void advise_pull_before_push(void) { if (!advice_push_non_ff_current || !advice_push_update_rejected) @@ -252,6 +264,20 @@ static void advise_ref_already_exists(void) advise(_(message_advice_ref_already_exists)); } +static void advise_ref_fetch_first(void) +{ + if (!advice_push_fetch_first || !advice_push_update_rejected) + return; + advise(_(message_advice_ref_fetch_first)); +} + +static void advise_ref_needs_force(void) +{ + if (!advice_push_needs_force || !advice_push_update_rejected) + return; + advise(_(message_advice_ref_needs_force)); +} + static int push_with_options(struct transport *transport, int flags) { int err; @@ -285,6 +311,10 @@ static int push_with_options(struct transport *transport, int flags) advise_checkout_pull_push(); } else if (reject_reasons & REJECT_ALREADY_EXISTS) { advise_ref_already_exists(); + } else if (reject_reasons & REJECT_FETCH_FIRST) { + advise_ref_fetch_first(); + } else if (reject_reasons & REJECT_NEEDS_FORCE) { + advise_ref_needs_force(); } return 1; |