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The -C flag tells the update command to discard all local changes before updating. 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 revert changes the file content only and leaves the working copy parent revision alone.
hg status shows the status of a repository. Files are stored in a project's working directory (which users see), and the local repository (where committed snapshots are permanently recorded). hg add tells Mercurial to track files. hg commit creates a snapshot of the changes to 1 or more files in the local repository.
Revert changes already committed To backout a specific changeset use hg backout -r CHANGESET . This will prompt you directly with a request for the commit message to use in the backout. To revert a file to a specific changeset, use hg revert -r CHANGESET FILENAME . This will revert the file without committing it.
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
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.
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.
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