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path: root/t/t1412-reflog-loop.sh
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* test: fix '&&' chainingRamkumar Ramachandra2011-12-08
| | | | | | | | | | Breaks in a test assertion's && chain can potentially hide failures from earlier commands in the chain by adding " &&" at the end of line to the commands that need them. Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Acked-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* reset: give better reflog messagesJeff King2011-07-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The reset command creates its reflog entry from argv. However, it does so after having run parse_options, which means the only thing left in argv is any non-option arguments. Thus you would end up with confusing reflog entries like: $ git reset --hard HEAD^ $ git reset --soft HEAD@{1} $ git log -2 -g --oneline 8e46cad HEAD@{0}: HEAD@{1}: updating HEAD 1eb9486 HEAD@{1}: HEAD^: updating HEAD However, we must also consider that some scripts may set GIT_REFLOG_ACTION before calling reset, and we need to show their reflog action (with our text appended). For example: rebase -i (squash): updating HEAD On top of that, we also set the ORIG_HEAD reflog action (even though it doesn't generally exist). In that case, the reset argument is somewhat meaningless, as it has nothing to do with what's in ORIG_HEAD. This patch changes the reset reflog code to show: $GIT_REFLOG_ACTION: updating {HEAD,ORIG_HEAD} as before, but only if GIT_REFLOG_ACTION is set. Otherwise, show: reset: moving to $rev for HEAD, and: reset: updating ORIG_HEAD for ORIG_HEAD (this is still somewhat superfluous, since we are in the ORIG_HEAD reflog, obviously, but at least we now mention which command was used to update it). While we're at it, we can clean up the code a bit: - Use strbufs to make the message. - Use the "rev" parameter instead of showing all options. This makes more sense, since it is the only thing impacting the writing of the ref. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* reflogs: clear flags properly in corner caseJeff King2010-11-23
The reflog-walking mechanism is based on the regular revision traversal. We just rewrite the parents of each commit in fake_reflog_parent to point to the commit in the next reflog entry instead of the real parents. However, the regular revision traversal tries not to show the same commit twice, and so sets the SHOWN flag on each commit it shows. In a reflog, however, we may want to see the same commit more than once if it appears in the reflog multiple times (which easily happens, for example, if you do a reset to a prior state). The fake_reflog_parent function takes care of this by clearing flags, including SHOWN. Unfortunately, it does so at the very end of the function, and it is possible to return early from the function if there is no fake parent to set up (e.g., because we are at the very first reflog entry on the branch). In such a case the flag is not cleared, and the entry is skipped by the revision traversal machinery as already shown. You can see this by walking the log of a ref which is set to its very first commit more than once (the test below shows such a situation). In this case the reflog walk will fail to show the entry for the initial creation of the ref. We don't want to simply move the flag-clearing to the top of the function; we want to make sure flags set during the fake-parent installation are also cleared. Instead, let's hoist the flag-clearing out of the fake_reflog_parent function entirely. It's not really about fake parents anyway, and the only caller is the get_revision machinery. Reported-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com> Signed-off-by: Jeff King <peff@peff.net> Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>