Mercurial: The Definitive Guide

By Bryan O'Sullivan

This instructive booklet takes you step-by-step via how you can tune, merge, and deal with either open resource and advertisement software program initiatives with Mercurial, utilizing home windows, Mac OS X, Linux, Solaris, and different platforms. Mercurial is the simplest approach to profit in terms of dispensed revision keep an eye on. And it is a very versatile software that is excellent no matter if you are a lone programmer engaged on a small undertaking, or a part of an immense group facing millions of files.

Mercurial allows a numerous number of improvement and collaboration tools, and this e-book deals numerous concrete feedback to get you begun. This consultant may also help you:

  • Learn the fundamentals of operating with a repository, changesets, and revisions
  • Merge alterations from separate repositories
  • Set up Mercurial to paintings with records each day, together with which of them to track
  • Get examples and instruments for constructing quite a few workflow models
  • Manage a venture that is making growth on a number of fronts at once
  • Find and connect errors by way of setting apart challenge sources
  • Use hooks to accomplish activities immediately based on repository events
  • Customize the output of Mercurial

Mercurial: The Definitive Guide continues a powerful specialise in simplicity that will help you study Mercurial fast and thoroughly.

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36 | bankruptcy 3: A travel of Mercurial: Merging paintings changeset: tag: father or mother: consumer: date: precis: 6:12efb75cbece tip 4:2278160e78d4 Bryan O'Sullivan Tue may well 05 06:44:49 2009 +0000 further an additional line of output $ cat hi. c /* * put within the public area through Bryan O'Sullivan. This software is * now not lined by way of patents within the usa or different international locations. */ #include int main(int argc, char **argv) { printf("once extra, hi. \n"); printf("hello, international! \"); printf("hello back! \n"); go back zero; } Committing the result of the Merge every time we’ve performed a merge, hg mom and dad will show mom and dad until eventually we hg devote the result of the merge: $ hg dedicate -m 'Merged adjustments' now we have a brand new tip revision; discover that it has either one of our former heads as its mom and dad. those are an analogous revisions that have been formerly displayed by way of hg mom and dad: $ hg tip changeset: tag: mother or father: mum or dad: consumer: date: precis: 7:41ec93b29030 tip 5:cbfc9ee6ea99 6:12efb75cbece Bryan O'Sullivan Tue may perhaps 05 06:44:52 2009 +0000 Merged alterations In determine 3-3, you can find a illustration of what occurs to the operating listing in the course of the merge, and the way this impacts the repository whilst the devote occurs. throughout the merge, the operating listing has mother or father changesets, and those turn into the oldsters of the recent changeset. We occasionally speak about a merge having aspects: the left part is the 1st guardian within the output of hg mom and dad, and the fitting facet is the second one. If the operating listing used to be at revision five earlier than we begun a merge, that revision becomes the left facet of the merge. Merging Streams of labor | 37 Figure 3-3. operating listing and repository in the course of merge, and following devote Merging Conflicting adjustments so much merges are uncomplicated affairs, yet occasionally you’ll end up merging alterations the place either side modifies a similar parts of an analogous documents. except either transformations are exact, this ends up in a clash, the place you might want to make a decision how one can reconcile the various alterations into whatever coherent. determine 3-4 illustrates an example of 2 conflicting adjustments to a rfile. We all started with a unmarried model of the dossier; then we made a few alterations, whereas another individual made assorted alterations to an identical textual content. Our activity in resolving the conflicting adjustments is to make a decision what the dossier should still seem like. Mercurial doesn’t have a integrated facility for dealing with conflicts. as an alternative, it runs an exterior application, frequently person who screens a few form of graphical clash solution interface. by way of default, Mercurial attempts to discover one of many diverse merging instruments which are more likely to be put in in your approach. It first attempts a number of totally automated merging instruments; if those don’t be successful (because the answer method calls for human assistance) or aren’t current, it attempts a number of various graphical merging instruments. It’s additionally attainable to get Mercurial to run a selected application or script through environment the HGMERGE atmosphere variable to the identify of your selected application.

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