From what i can gather, even though mercurial now as of years ago, actually has powerful rebase and patch queue extensions, mercurial users still get the heebiejeebies when they think about modifying repository history. As opposed to merging, which pulls the differences from the other branch into yours, rebasing switches your branchs base to the other branchs position and walks through your commits one by. In general, its just a matter of applying your patch es and running hg push, but lets not do that right now as a series of important checks need to happen before. At the last mercurial sprint brendan cully said something that made me realize that mq behaves very much like a soupedup version of gits index. These all start with q, and try to mimic commands under quilt. A short overview of mercurials decentralized model is also available. Waw this is so much more complicated than git rebase interactive.
Im not an hg user, so i have read about hg but dont have much first hand experience of using it. If the patch has been created with git format patch, it is better and more efficient to use git am, because that. Given you have a patch that doesnt apply to the current head, but you know it applied to some commit in the past, git rebasepatch will help you find that commit and do a rebase. Here, the qref x command takes the changes to the first file out of the patch, so that they now show up in hg diff and therefore get picked up by the hg qnew. The commit to queue actually commits the patches to a new repository created in the. Your mq patch queue is effectively an overlay over mercurials builtin store that is in an everchanging state of partial application. Mar 12, 2014 on their gitconcepts0 page, it says hg rebase or hg histedit should be used to do git rebase type operations. Even you can setup a patch queue over some decompressed tgz and maintain local modifications over some external software package and its upgrade history. Rebasing effectively edits the repositorys history and you never want to edit public history. Mercurial patch queues mq the mq extension provides a powerful tool for managing patches. Rebasing your commits, instead of merging, can help keep your mercurial history much easier to follow, with fewer merge polygons in your commit graph. Given you have a patch that doesnt apply to the current head, but you know it applied to some commit in the past, git rebase patch will help you find that commit and do a rebase. This introduced the rebase command, which moves changesets as opposed. You can view the queue of patches bottom left of tortoisehg by selecting view show patch queue.
When you hg qpush to apply a patch from the patch queue, you effectively do an hg import to import a mercurial changeset file into the core mercurial store. Now you know your changesets will apply to the current state of commcentral and you can export them by doing hg export rev nnn my patch file. May 20, 2011 they should also be able to edit the commit messages, date, author, etc at the same time. You can change the patch order simply by moving them around in the series. After the extension is properly installed, hg help will include the mq commands. This feature is still under active development, but the general usage will be updated here as things change. That is necessary because ui elements or their behavior could have been changed between major versions. Mercurial supports a multitude of workflows and you can easily enhance its functionality with extensions. A patch1 patch2 \ \ b in the above situation, the patch queue could be rebased on b with hg rebase easily enough thus the suggestion to use hg rebase, but that has. They should also be able to edit the commit messages, date, author, etc at the same time. Get unlimited access to the best stories on medium and support writers while youre at it. To push a patch to commcentral, youll need level 3 commit access. While it sounds like i should really switch to a bookmarkbased mercurial workflow for my gecko development, i figured that before i do that, i should document how i currently use patch queues and bitbucket.
At the last mercurial sprint brendan cully said something that made me realize that mq behaves very much like a soupedup version of gits index i wanted to write a blog post about the similarities between the two concepts so that git users could understand mercurials. Jun 23, 2014 your mq patch queue is effectively an overlay over mercurials builtin store that is in an everchanging state of partial application. If the patch has been created with git formatpatch. When you hg qpush to apply a patch from the patch queue, you. Mercurial and bitbucket workflow for gecko development. Aug 07, 2008 and also a patch queue allows you to have your local changes and rebase them against a moving repository they are always above the normal commits. Merging with mercurial queues answers and questions. On july 6, 2017, the get committee voted to rebase all existing customer accounts to prepare the program for reopening to new enrollments and unit purchases and to ensure customer accounts would. The mqextension can help you rebase your patches via threeway merging. How to use mercurial merge functionality for rejected. Gits rebase command reapplies your changes onto another branch. I have a stack of draft patches on top of a public revision b37b6c015168. Risks phases append strip rebase mq import commits into a queue refresh a patch delete a patch create a new patch change patch order fold patches finish patch create a new queue histedit changeset e. How to use mercurial merge functionality for rejected hunks in a.
Run hg rebase b mybookmarkname d xxx to rebase your patches. Contribute to vmghg stable development by creating an account on github. This can be useful for linearizing local changes relative to a master development tree. The most common scenario is a patch queue against upstream revision. The rebase extension can help a lot with merging a patch or series of patches to a. I squashed all the patches together into a single patch. That assumes you are currently updated to the patch stack that you want to rebase, probably with a bookmark at its head. Jul 09, 2009 now i turned all the commits id done for the revisions into patches for the mercurial patch queue mechanism. The biggest thing i missed from mq was an easy way to see my current patch stack. Note that the file status will change once you commit, hg status only shows information. Risks phases append strip rebase mq import commits into a queue refresh a patch delete a patch create a new patch change patch order fold patches finish patch create. You can use the hg annotate command to see which changeset or patch modified a.
The patch queue is linear, though, and you can only rebase a patch if the changeset onto which it has been applied has other children parallel to the patch queue. N directory with the highest number when trying to find a saved patch queue. Now i turned all the commits id done for the revisions into patches for the mercurial patch queue mechanism. I realize that there probably is a good reason for this and its my understanding of how mq works that is wrong.
Secondly, i disagree that it is dangerous to pull changes from the central. Rebasing is a technique made popular by git where you rewrite your. Even you can setup a patch queue over some decompressed tgz and maintain local modifications over. Create a patch documentation for mozilla l10n drivers.
Having gained level 3 access and configured mercurial, you can push to commcentral. When mq is enabled, several workbench features are exposed. The mqmergepatch page says it is a modification of mqmerge, which was a technique for rebasing a series of patches on top of new changesets pulled from elsewhere however, it involves saving a copy of the patch queue already applied thats really all hg qsave does and using the saved copy as part of the reference for a 3way merge that. Also, people arguing against mercurial seem unaware of hg collapse which allows rewriting history in a way similar to git. But if you are learning mercurial, instead use modern tools, such as hg rebase, hg histedit, hg graft, hg strip, hg strip keep, and hg commit amend. The real difference between git and mercurial hacker news. Only visible when mq is enabled mq options open the mq options dialog. Finish patch transforms the mq patch into a regular changeset. Its possible to partially automate the rebasing process. For thunderbird mozmill tests see thunderbird mozmill testing. Mozmill is a deprecated test tool and framework that has been superceded by marionette. After a rebase, the new commits from you in blue are not exactly the same as they were if there were conflicts, those conflicts are integrated. If youre used to it and you like it, by all means, keep using it. Ive been using mercurial queues more and more lately.
Mercurial why wont hg let you push with patches applied. When you hg qpush to apply a patch from the patch queue, you effectively do an hg import to import a mercurial changeset file into. This then would be the overall model of patch queues except it would be working within normal hg. In the above situation, the patch queue could be rebased on b with hg rebase easily enough thus the suggestion to use hg rebase, but that. How to rebase patch queue while merging a branch in. The only time they recommend mq is if you want the index or the git am type command. When you rebase you on johnny, git creates a temporary branch that is a copy of branch johnny, and tries to apply the new commits of you on it one by one for each commit to apply, if there are conflicts, they will be resolved inside of the commit. Use hg debugsetparents to replace the corrupted parent revision number 893e15ecb5b4 with the correct one i had updated to before using unshelve because the above had left me in a state where mercurial had forgotten all local changes, i had to use. So you save your work, refresh the current patch and fix that small bug with a new patch. The mozmilltests repository contains tests for different versions of firefox.
How can i repair a repository broken by hg unshelve. Following the libvirt cvs repository using mercurial, tailor and patch queues. After creating a new bug in bugzilla, i do the following create a new mozillacentralmqbugnumber repo on bitbucket using the web interface and put s. The only difference comes when the work is complete instead of using hg commit to record a permanent changeset, i want to update the patch queue. How to move some changeset to a new branch in mercurial 3. Mercurial how can i repair a repository broken by hg unshelve. Contribute to mjggitrebasepatch development by creating an account on github. This isnt the only way of skinning the cat you could also use branches, or the new rebase command inspired by git, but my mind works in terms of patch queues, so i chose mq. With only one set of tests and modules in place, the testrun would produce test failures and.
May 29, 2014 this post demonstrates performing a rebase on your mercurial repository using tortoisehg. Fortunately, mercurial includes a powerful extension, mercurial queues or simply mq, that. If the imported patch was generated by hg export, user and description from patch. This post demonstrates performing a rebase on your mercurial repository using tortoisehg. See the rebase documentation, mention of this feature in the mq documentation, and somebodys blog post. It allows you to browse your local repositories, make commits, perform searches, synchronize with other repositories, and perform various maintenance tasks. Using mercurial queues thunderbird about thunderbird. I have a stack of draft patches on top of a public. Ie the patches are always applied and there patch queue is finished. Only visible when mq is enabled rename patch renames the mq patch file. Use the following example, or for more detailed information see.
Each one is best for specific purposes, so learn when to use them efficiently, and why. Reorder your queue and run hg qpush to apply only the patches you want to push to live. A saved patch queue is used to find the changesets for merging. Only visible when mq is enabled rebase move the selected revision and all of its descendants onto the current working parent revision. Here you can create a new queue and use the dropdown to switch between queues. And also a patch queue allows you to have your local changes and rebase them against a moving repository they are always above the normal commits. The first 8 patches in my stack have landed upstream, so im hoping to discard those in favor of their public versions. The suggestion to use hg rebase is misleading, i think. Check the documentation for each of these commands. I pull from upstream, get a bunch of new changesets, the top one is 1adf382a3e65. A short overview of mercurial s decentralized model is also available. In other words, i would expect that if i made some commits, then started a patch queue, then pushing would push those commits, and ignore anything going on with patches. Never perform a rebase of changesets that you have pushed out from your local repository it can cause painful issues.
On the other hand, queues is the only tool available for patches to l10n. How to use mercurial merge functionality for rejected hunks. On their gitconcepts0 page, it says hg rebase or hg histedit should be used to do git rebase type operations. To rebase in mercurial you will need the rebase extensions enabled in your. The workbench is the primary tortoisehg application. The rebase command itself is aware of mercurial queues, at least in semirecent versions of mercurial. However i would probably not use hg rebase on mercurial queues, which are meant to be managed by mq extension commands. Risks phases append strip rebase mq import commits into a queue refresh a patch delete a patch create a new patch change patch order fold patches. If necessary, you can rebase against another bookmark, like central or inbound. You can use qcommit to commit changes to this queue repository. You can follow our simple guide to learn how to revision your documents with mercurial, or just use the quick start to get going instantly.