How to discard all local changes including to unversioned files?
I'm moving a build process to use mercurial and want to get the working directory back to the state of the tip revision. Earlier runs of the build process will have modified some files and added some files that I don't want to commit, so I have local changes and files that aren't added to the repository.
What's the easiest way to discard all that and get a clean working directory that has the latest revision?
Currently I'm doing this:
hg revert --all
<build command here to delete the contents of the working directory, except the .hg folder.>
hg pull
hg update -r MY_BRANCH
but it seems like there should be a simpler way.
I want to do the equivalent of deleting the repo, doing a fresh clone, and an update. But the repo is too big for that to be fast enough.
Those steps should be able to be shortened down to:
hg pull
hg update -r MY_BRANCH -C
The -C flag tells the update command to discard all local changes before updating.
However, this might still leave untracked files in your repository. It sounds like you want to get rid of those as well, so I would use the purge extension for that:
hg pull
hg update -r MY_BRANCH -C
hg purge
In any case, there is no single one command you can ask Mercurial to perform that will do everything you want here, except if you change the process to that "full clone" method that you say you can't do.
hg up -C
This will remove all the changes and update to the latest head in the current branch.
And you can turn on purge extension to be able to remove all unversioned files too.
To delete untracked on *nix without the purge extension you can use
hg pull
hg update -r MY_BRANCH -C
hg status -un|xargs rm
Which is using
update -r --rev REV revision
update -C --clean discard uncommitted changes (no backup)
status -u --unknown show only unknown (not tracked) files
status -n --no-status hide status prefix
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