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| The [:Merge:merge] process is simple. Usually you will want to merge the [:Tip:tip] into your [:WorkingDirectory:working directory]. Thus you run {{{hg merge}}} and Mercurial will incorporate the changes from tip into your [:LocalModifications:local changes]. The first step of this process is tracing back through the history of [:ChangeSet:changesets] and finding the 'common ancestor' of the two versions that are being merged. This is done on a project-wide and a file by file basis. For files that have been changed in both projects, a three-way merge is attempted to add the changes made remotely into the changes made locally. If there are conflicts between these changes, the user is prompted to interactively resolve them. Mercurial uses a helper tool for this, which is usually found by the hgmerge script. Example tools include tkdiff, kdiff3, and the classic RCS merge. After you've completed the merge and you're satisfied that the results are correct, it's a good idea to [:Commit:commit] your changes. Mercurial won't allow you to perform another merge until you've done this commit as that would lose important history that will be needed for future merges. |
See [:Merge:merge] |
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| First, merge often! This makes merging easier for everyone and you find out about conflicts (which are often rooted in incompatible design decisions) earlier. Second, don't hesitate to use multiple trees locally. Mercurial makes this fast and light-weight. Typical usage is to have an incoming tree, an outgoing tree, and a separate tree for each area being worked on. The incoming tree is best maintained as a pristine copy of the upstream [:Repository:repository]. This works as a cache so that you don't have to [:Pull:pull] multiple copies over the network. No need to check files out here as you won't be changing them. The outgoing tree contains all the changes you intend for merge into upstream. Publish this tree with {{{hg serve}}} or hgweb.cgi or use {{{hg push}}} to [:Push:push] it to another publicly availabe repository. Then, for each feature you work on, create a new tree. Commit early and commit often, merge with incoming regularly, and once you're satisfied with your feature, pull the changes into your outgoing tree. |
See [:WorkingPractices] |
How does merging work?
See [:Merge:merge]
What are some best practices for distributed development with Mercurial?
See [:WorkingPractices]
How do I import from a repository created in a different SCM?
See [:ConvertingRepositories] for various tips.
What about Windows support?
See [:WindowsInstall] for getting started using Windows.
Is there a GUI front-end?
See [:GUIClients] for information on graphical merge tools and other front-ends.