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 lt build command here to delete the contents of the working directory except the hg folder gt 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

hg status will show you all the new files and then you can just rm them Normally I want to get rid of ignored and unversioned files so hg status -iu to show hg status -iun0 xargs -r0 rm to destroy And then follow that with hg update -C -r xxxxx which puts all the versioned files in the right state for revision xxxx To follow the Stack Overflow tradition of telling you that you don t want to do this I often find that this Nuclear Option has destroyed stuff I care about The right way to do it is to have a make clean option in your build process and maybe a make reallyclean and make distclean 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

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

If you re looking for a method that s easy then you might want to try this I for myself can hardly remember commandlines for all of my tools so I tend to do it using the UI 1 First select commit 2 Then display ignored files If you have uncommitted changes hide them 3 Now select all of them and click Delete Unversioned Done It s a procedure that is far easier to remember than commandline stuff

[mercurial] Discard all and get clean copy of latest revision?

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.

Examples related to mercurial

• Convert Mercurial project to Git • Mercurial: how to amend the last commit? • Discard all and get clean copy of latest revision? • Mercurial undo last commit • How to save username and password with Mercurial? • Mercurial — revert back to old version and continue from there • Is there any way to delete local commits in Mercurial? • How to correctly close a feature branch in Mercurial? • How can I switch to a tag/branch in hg? • What is the difference between hg forget and hg remove?

Examples related to pull

• Your configuration specifies to merge with the <branch name> from the remote, but no such ref was fetched.? • How do I force Kubernetes to re-pull an image? • Error: Cannot pull with rebase: You have unstaged changes • git pull from master into the development branch • Trying to git pull with error: cannot open .git/FETCH_HEAD: Permission denied • git pull error :error: remote ref is at but expected • How to merge remote master to local branch • How to undo a git pull? • Discard all and get clean copy of latest revision? • What is the difference between pull and clone in git?