Mercurial import patch failsafe

Episode 2 failsafe core concepts, part ii failsafe. In the cpython mercurial repo, recreate the patch using git parameter. People who are used to gits branchbased workflow may find mq hard to adapt to, and should consider using mercurial bookmarks or branches instead. Mercurial reads configuration data from several files, if they exist. To generate patches using mq extensions in mercurial, you can follow the below given steps. The import dialog can be opened from the repository menu of the workbench, or via thg import. Your development team might have one shared repository for your projects 0.

The external tool must work as the common unix patch program. Other possibility is to use unix patch command on windows perhaps use cygwin version or use hg import directly with nocommit option. When the recipient receives our email, they will save the attachment and use the import command to import the changeset into their repository. The script parses mercurial changesets and converts them into a script for gits fast import feature which well. I must confess to not having used patches a lot, so this might not be the right workflow, but what i would try, if i was in that situation was to apply. By default mercurial uses an internal patch utility. Converting a mercurial repository to git on windows appveyor. Migrating 140,000 commits from mercurial to git hacker noon. The plugin enables merge to populate the versions button dropdown versions menu appropriately. In particular, it must accept a p argument to strip patch headers, a d argument to specify the current directory, a file name to patch, and a patch file to take from stdin. Rejects are pieces of a patch that dont apply cleanly. The first problem we faced with was converting existing mercurial repositories to git with preserving all history and authors. To create a patch using mq extensions you can do the following.

Applying and using patch diff in mercurial gulleles corner. The mq extension is bundled with mercurial and is enabled by putting this in your hgrc extensions hgext. Selecting git repository in android distributed version control systems. The merge plugin for mercurial enables merge to access versions of files located within a local mercurial repository. Well, you are right, that this is definitely one way of doing it. Gregory szorcs digital home mercurials journey to and. Both hg and hggit are installed via macports on os x 10. The dialog supports file and directory drag and drop. Note that this conversion is not very well tested yet. This file is a patch file in unified diff format, with some extra information that tells mercurial how to import it. If you do use patches, it would make sense to have different patches for each feature you add, rather than having one large patch with everything. Check that with hg status and resolve via hg revert etc as appropriate.

Mar 23, 2019 please refer to mercurial for mozillians at readthedocs for current bestpractices around mercurial, including many helpful extra tools and guidelines that make using mercurial fast and easy. Hes already filed a bug and released a patch for it. If you know what version of a project a patch applies to, you can get help from mercurial. If a patch does not import itself cleanly into the repository, the recommended recourse is to. You can directly import a bugzilla patch by using the bugzilla attachment url as the argument. Mercurial on windows last updated by adam west on august 28, 2019 16. If your mercurial installation is provided by a package which does not include the hgweb. Applying a patch to a repo using mercurial the unheralded. I am using another developers ubuntu box and trying to tell if mercurial is installed and working. Mercurial queues mq is an extension to mercurial, that allows to maintain patches on top of an existing mercurial repository that are commited on top of the repository and they can be refreshed, reordered and removed thus making the changes mutable as opposed to the immutable commits in the repository. Clone a new repository or move to the repo you want to apply the patch.

With a few commands you can easily back out the patches, apply specific patches, delete patches, or convert a patch into a changeset. Fe3335 add support for mercurial scm create and track. Les operations creant une transaction sont commit, import, push, pull. Or maybe persuade mercurial authors that this demandimport idea isnt so great, they saved an hour or two thanks to not writing from mercurial import something lines, people who extend mercurial spend time facing issues as this one. As developers, we dont want to keep reinventing the wheel over and over again. To learn how to merge changes from diverged repositories, continue to tutorialmerge.

As a git and github lover, it took me a while to get used to mercurial. Tortoisehg in daily use is the main chapter, it describes the frequently used components of tortoisehg. Mercurial queues is the primary method used by many thunderbird developers to create patches and work on multiple bugs without stumbling upon merge conflicts. While most of the world seems to be using git for version control, mozilla continues to use mercurial hg to manage the firefox source code. Add the name of the patch to the end of the commit message. You can always use hg verify on a repository to make mercurial doublecheck that everything is as it should be. Add the following lines to your hgrc file and save it.

A python library for handling failures, heavily inspired by the java project failsafe. It takes advantage of the pythons coroutines and only supports async operations and python 3. Yes, i use fastexport to convert from hg to git on the fly. It does that and automatically manipulates your files to match whichever patches are in effect. The content previously available at this page describes techniques and practices like mercurial queues which are no longer recommended. Import to mq import selected revision into the current patch queue. Hello, im trying to import some custom ibm patches into my vum repository vum 5. Importing data from thirdparty version control systems.

Maintainer for mercurialgit is python applications packaging team. Any time mercurial runs, the first line output is this python error. Mercurial lets you import patches from both local files and. The names of these files depend on the system on which mercurial is installed. If a patch fails to apply cleanly, use the entry for the patch in another saved queue to compute the parameters for a threeway merge, and perform a threeway merge using the normal mercurial merge machinery. It is included as a standard part of the merge installation. The fist way i found out was to export my changes with hg export r file. Importing data from thirdparty version control systems using the git import suite of tools, you can import from subversion, mercurial and team foundation version control to git repositories on github enterprise server. Like in subversion, history consists of a number of commits. The external tool must work as the common unix patch. The patch queue extension integrates quilt functionality into mercurial. When a configuration setting appears in more than one of these files, the local overrides peruser which overrides persystem. A light branching strategy with mercurial and bookmarks.

Mercurial queues, or mq, is a mercurial extension that lets you keep work in progress as mutable patches, instead of as immutable changesets. How to fix mercurial corrupt repository software projects inc. Mercurials patch routines do not deal well with mixed eoln between source files and patches. Frequently asked questions has a list of common questions and their answers.

The r flag tells hgfastexport where to find the mercurial repository we want to convert, and the a flag tells it where to find the authormapping file. I used hg quite extensively earlier this year, but switched to git within the last couple months. The version of python you are using conflicts with the python version mercurial relies on. On windows, there are three types of configuration files read by mercurial. Pyfailsafe provides mechanisms for dealing with operations that inherently can fail, such as calls to external services. Mercurial import patch fails to screeny if you open from tortoisemerge. Once my changes are validated, i must rebase my changes to the top of default. Mercurial configuration files on windows code yarns. Tutorial on how to activate and use mercurial queues. From the command line, with the same user running fisheyecrucible. This is by no means foolproof and is a fair amount of work. Github actually provides a repository importer that can import from hg when creating a new repo, and theres an open source project called fastexport that can do the same locally.

Notice in this example that mercurial printed the names of the files it added, whereas it didnt do so when we added the file named myfile. Your working directory may or may not be in a good state. Mq stands for mercurial queues and provides a way to import commits into a queue turns them into patches where you can make changes and then reapply the patches. You can provide this file to git svn to help it map the author data more accurately. But as i understood it, you need to have the whole repository converted. After working for over a year alternating between two projects, one that uses git for its version control and another that uses mercurial, i have finally achieved sufficient mastery of both toolchains that i now feel comfortable defending my judgment that mercurial is the superior of the two systems.

I had some problems in the past with imports but could always solve them with a simple restart of the vum service. Python error when using a mercurial command atlassian. Average of 5 out of 5 stars 5 ratings sign in to rate close tweet. Mozilla releng treescript automatic version bump closed tree no bug arelease. Mercurial queues, or mq, is a mercurial extension that lets you keep work in progress as mutable. The mercurial system uses a set of configuration files to control aspects of its behavior. An optional external tool that hg import and some extensions will use for applying patches.

Use with other vcs systems describes how to use tortoisehg as a client for non mercurial servers. Chocolatey is software management automation for windows that wraps installers, executables, zips, and scripts into compiled packages. This program is a commandline application so you need to run it from the windows command prompt. Oct 14, 2008 i tried various things such as apply a patch hg, patch hg, install patch hg and mercurial apply patch. How to fix mercurial corrupt repository liviu olos, 01072010 if youre using mercurial hg and keep running into the premature eof reading chunk error, theres hope. In our example, alice knows that the patch applies to her first commit. If the revision being repaired was part of an applied patch queue, recovery is somewhat more complicated because the index file copied from the cloned repo will reference the wrong changeset.

Then i also had to install pythondev to be able to install mercurial. Now well look at some of the basic concepts of mercurial to get a better understanding of its internals. Unlike the append and strip commands mq does not provide a backup of the original commits, so if you want a backup before starting you can just clone your local repository. The main goal with mercurial s early porting work was just getting the code base to a point where import mercurial would. This means that when generating diffs from a mercurial repository e. We recommend running a mercurial no older than version 2. Use the resolution of the merge as the new patch content. They are designed to be appendonly, which makes it possible to repair some forms of hardware corruption by simply truncating the files. Binary packages of tortoisehg for windows come with mercurial and a merge tool and are thus. Create a mercurial repository of current directory with a. You have the choice of importing directly into the repository, the working folder, a shelf file, or your patch queue. Mercurial patches allow you to develop code as patches, and pushpop the appropriate patches.

Mercurial repositories consist of a lot of revlog files. The projects late start at a python 3 port can be significantly attributed to python 2. What to do when a patch for mercurial import fails. Chocolatey is trusted by businesses to manage software deployments. As more and more people start using mercurial as their scm of choice, we should consider adding support for this scm or at least make it doable with a separate regular fisheye plugin. If the script fails, chances are it failed to run hg import to apply a patch. Later on in the process, i also found the mercurial convertextension which advertises similar capabilities. Because patches are a traditional format for exchanging code changes, they lack some of. There are togit conversion tools for converting almost every scm repository to a git repository. Returns 0 on success, 1 on partial success see partial. Process new git revisions all at once rather than per changeset.

The metadata includes a gitsvnid inside each commit message that git will generate during import. Mercurial searchhistorydiff250x200 mercurialversioncontrol. One was at hgbook and another was documentation about hg queues but neither of them was a straight up guide of how to install patches. Well, turns out that ted has already started working on that. If youre using a recent mercurial release, just download the latest version of hgweb. So if someone sends the patch in the mercurial format, i just want to apply it to git, instead of applying it to hg first and then converting. We should leverage code that weve already written, and use open source libraries and frameworks where appropriate. Fixing changeset reference for index files from a patch queue. Upgrading mercurial mozilla version control tools 0. How to create patch series on mercurial and git redmine. Using the above, you can apply the patch to mercurial and also see the applied path to the repository. Its common practice with mercurial to maintain separate development branches of a project in different repositories. Nov 11, 2008 yes, i use fastexport to convert from hg to git on the fly.

Check the python version you are using against what your mecurial version relies on. As i mentioned in a previous blog post, one of the features for my v0. This allows you to develop your code as a set of patches which keeps it clean and easier to debug. The repository fails to be pulled because the mercurial client is not able to verify the servers certificate. I think git has one glaring deficiency that makes it the inferior tool, and i hope. This worked but the graft extension makes it easier. Mercurial comes with mozillabuild, in the folder hg.