author  Mike Sullivan <Mike.Sullivan@Oracle.COM> 
Mon, 13 Oct 2014 14:17:14 0700  
changeset 2147  0cb80a8f6f24 
parent 41  50cc241a2b9a 
child 3836  56af60eb6020 
permissions  rwrr 
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Userland Gate Mechanics 
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The userland consolidation operates a set of Mercurial repositories that work 
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together to manage the tools, source code, and build recipies. These 
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repositories are the integration repository, gate, and external mirror. This is 
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similiar to how the Solaris ON, SFW, and other gates operates, however there 
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are a few subtle differences. In ON and other consolidations, the integration 
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repository is that gate and contains the canonical source. Once a changeset 
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is committed, it becomes a part of the canonical source. In the case of ON, 
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the changeset is immediately pushed to the clone repository. SFW and other 
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consolidations push changes from their canonical gate to a clone repository 
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nightly. In the userland consolidation, developers will commit changes to the 
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integration gate. These changes will not be accepted until some basic 
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validation is performed. Once the validation completes successfully, the 
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changes are accepted and pushed into the canonical source gate. 
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Integration repository (ssh://[email protected]//nevada/incoming) 
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The integration gate is the Mercurial repository that all tools, source 
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code, and build recipies are committed to. Unlike ON, SFW, and other 
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Solaris gates this source code repository does not contains the canonical 
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source for the product. This repository is a staging area for change 
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integration and acceptance. 
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hg push to integration gate 
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v 
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lock gate 
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v 
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validate changeset(s) > failed > rollback changeset(s) 
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v  
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accepted  
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v v 
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push to clone > unlock gate 
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v 
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update bug db 
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v 
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notify committer 
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So, the basic flow works something like this: A user pushes a changeset 
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to the integration gate. Mercurial locks the gate to block any other 
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attempts to operate on the gate while it is validating the changeset. 
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At this point, validation is started in the background, a message is 
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displayed, and control is returned to the user. Validation continues 
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in the background. If validation completes successfully, the changeset(s) 
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are pushed to the clone, the gate is unlocked, the bug database is updated, 
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and the user is notified of the changeset acceptance. If the validation 
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fails, the changeset(s) are rolled back, the gate is unlocked, and the 
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user is notified of the failure. 
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Changeset validation will include the following: 
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multidelta update check 
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commit comment validation 
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bugdb validation 
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future operations 
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source archive download 
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incremental build on all architectures 
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unit test on all architectures 
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package publication for all architectures 
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Canonical source repository (ssh://[email protected]//nevada/gate) 
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The clone gate is actually the mercurial repository that contains the 
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canonical tools, source code, and build recipies for the product. It 
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should always be in a stable, buildable state. When changes are pushed 
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to this gate, they are mirrored on the external mirror repository from 
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here. 
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clone update 
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v 
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push to external mirror 
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v 
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notify gatelings 
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External mirror repository (ssh://[email protected]//hg/userland/gate) 
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The external mirror is the mercurial repository that contains an externally 
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accessible copy of the canonical tools, source code, and build recipies for 
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the product. It should always be in a stable, buildable state. 
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external mirror update 
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v 
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notify gatelings 
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