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SCM/HGtoGit: Difference between revisions
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* Simplified onboarding for new contributors as Git is better known today than Hg {{devs}} | * Simplified onboarding for new contributors as Git is better known today than Hg {{devs}} | ||
* Git supports new workflows not supported by Hg {{devs}} | * Git supports new workflows not supported by Hg {{devs}} | ||
* Git lets developers have a single repository (and multiple checkouts if so desired) for m-c, aurora, beta, etc, work {{devs}} | * <strike>Git lets developers have a single repository (and multiple checkouts if so desired) for m-c, aurora, beta, etc, work {{devs}}</strike> | ||
** This is doable with the [http://mercurial.selenic.com/wiki/ShareExtension share extension]. See https://bitbucket.org/indygreg/gecko/ for a unified Mercurial repository. | |||
* Better merging algorithm, fewer conflicts {{devs}} | * Better merging algorithm, fewer conflicts {{devs}} | ||
* Easier source code archeology, we'll have history since the dawn of time (i.e. all of Hg and CVS) {{devs}} | * <strike>Easier source code archeology, we'll have history since the dawn of time (i.e. all of Hg and CVS) {{devs}}</strike> | ||
** This is doable with Mercurial. We'd like need a flag day. But we could do it if we wanted. | |||
* Git performs better than Hg (modulo in some operations on Windows, which we're working on) {{devs}} | * Git performs better than Hg (modulo in some operations on Windows, which we're working on) {{devs}} | ||
* Hg occasionally corrupts repositories (known bug, wontfix), no such known issues with Git {{devs}} {{releng}} | * <strike>Hg occasionally corrupts repositories (known bug, wontfix), no such known issues with Git {{devs}} {{releng}}</strike> | ||
** Modern versions of Mercurial don't corrupt repositories with nearly the same frequency as older versions. If you are referring to {{bug|737865}}, this is because Mozilla is hosting Mercurial over NFS, which is not recommended. | |||
* Mozilla currently makes use of Hg and Git, consolidation is easier for all devs {{devs}} | * Mozilla currently makes use of Hg and Git, consolidation is easier for all devs {{devs}} | ||
* Better review tools (Gerrit) available for devs {{devs}} | * <strike>Better review tools (Gerrit) available for devs {{devs}}</strike> | ||
** Most review tools are built on the concept of *take a patch against a parent revision* and this concept works equally well with Mercurial and Git. ReviewBoard, Rietveld, and Phabricator all support Mercurial and Git. | |||
* Simplified debugging (no longer have to debug Hg) {{releng}} {{IT}} | * Simplified debugging (no longer have to debug Hg) {{releng}} {{IT}} | ||
* Simplified management as only one SCM system {{releng}} {{IT}} | ** You are just swapping Mercurial for Git. | ||
* <strike>Simplified management as only one SCM system {{releng}} {{IT}}</strike> | |||
** IT will still manage hg.mozilla.org as not every project will switch to Git. | |||
===Issues=== | ===Issues=== | ||