Completely baffled
Becker, Mischa J
mischa.becker at fredmeyer.com
Mon Dec 5 18:23:58 UTC 2011
> -----Original Message-----
> From: mercurial-bounces at selenic.com [mailto:mercurial-bounces at selenic.com] On Behalf Of Haszlakiewicz, Eric
> Sent: Monday, December 05, 2011 9:47 AM
> To: Isaac Jurado; Liam Routt
> Cc: mercurial at selenic.com
> Subject: RE: Completely baffled
>
>> -----Original Message-----
>> From: mercurial-bounces at selenic.com [mailto:mercurial-
>>
>> On Mon, Dec 5, 2011 at 10:37 AM, Liam Routt
>> <liam.routt at mediasaints.com> wrote:
>> >
>> > Just as a followup, we managed to lose the last two days of work by one of
>> > our developers today with Mercurial, which really hurts.
>> >
>> > Prior to doing the checkin of the work he'd done, he did a pull + update.
>
> He didn't happen to specify --clean when he ran the update command, did he?
>
>> This is a bad practice and a curse inherited from Subversion and
>> similar systems (like Bazaar in centrlized mode).
>>
>> In distributed VCS you always commit first, then pull and merge (or
>> rebase, depends on how confident you are with the tool). I had a hard
>> time explaining my colleagues at work to stop using "hg pull -u" and
>> committing first instead.
> For many people that's a completely absurd workflow. Just because I'm pulling
> in changes from someone else doesn't mean that I'm anywhere near ready to
> commit my changes. I often (i.e. every week) work on things where my local
> files have assorted changes that are inappropriate to make part of the change
> history. e.g. comments I add while figuring out the logic of the code
> (occasionally obscene, if the code is particularly bad :) ), temporary debugging
> statements, misguided experiments, etc...
>
> I'm pretty sure I'm not the only one that works this way; just look at the popularity
> of things like mq and shelve.
>
> eric
Yeah, I used to do that, then I'd spend half a day coding in a certain direction only to discover that I was going in the wrong direction and making things worse, not better. At that point I want to revert the code back to where it was that morning, only I couldn't because I hadn't done any commits for the very reasons you give. It finally dawned on me that just because you should commit often, doesn't mean you have to commit to the working/development branch. In those situations, I create a branch named temp and commit to it. I can then pull and merge other people's code into my temp branch if needed. When I'm ready to do a 'real' commit I move my completed change to the working branch using whatever works best. (rebase collapse/shelve/mq/etc.) and then strip the temp branch. If you are worried about accidently pushing the temp branch, create a hook to prevent it.
Mischa Becker
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