tests/test-push-checkheads-superceed-A6.t
author Matt Harbison <matt_harbison@yahoo.com>
Wed, 10 Jan 2018 22:23:34 -0500
changeset 35616 706aa203b396
parent 35393 4441705b7111
child 35709 1a09dad8b85a
permissions -rw-r--r--
fileset: add a lightweight file filtering language This patch was inspired by one that Jun Wu authored for the fb-experimental repo, to avoid using matcher for efficiency[1]. We want a way to specify what files will be converted to LFS at commit time. And per discussion, we also want to specify what files to skip, text diff, or merge in another config option. The current `lfs.threshold` config option could not satisfy complex needs. I'm putting it in a core package because Augie floated the idea of also using it for narrow and sparse. Yuya suggested farming out to fileset.parse(), which added support for more symbols. The only fileset element not supported here is 'negate'. (List isn't supported by filesets either.) I also changed the 'always' token to the 'all()' predicate for consistency, and introduced 'none()' to improve readability in a future tracked file based config. The extension operator was changed from '.' to '**', to match how recursive path globs are specified. Finally, I changed the path matcher from '/' to 'path:' at Yuya's suggestion, for consistency with matcher. Unfortunately, ':' is currently reserved in filesets, so this has to be quoted to be processed as a string instead of a symbol[2]. We should probably revisit that, because it's seriously ugly. But it's only used by an experimental extension, and I think using a file based config for LFS may drive some more tweaks, so I'm settling for this for now. I reserved all of the glob characters in fileset except '.' and '_' for the extension test because those are likely valid extension characters. Sample filter settings: all() # everything size(">20MB") # larger than 20MB !**.txt # except for .txt files **.zip | **.tar.gz | **.7z # some types of compressed files "path:bin" # files under "bin" in the project root [1] https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-December/109387.html [2] https://www.mercurial-scm.org/pipermail/mercurial-devel/2018-January/109729.html
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====================================
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Testing head checking code: Case A-6
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====================================
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Mercurial checks for the introduction of new heads on push. Evolution comes
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into play to detect if existing branches on the server are being replaced by
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some of the new one we push.
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This case is part of a series of tests checking this behavior.
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Category A: simple case involving a branch being superceeded by another.
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TestCase 6: multi-changeset branch, split on multiple other, (base on its own branch), same number of head
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.. old-state:
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..
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.. * 2 branch (1-changeset, and 2-changesets)
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..
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.. new-state:
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..
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.. * 1 new branch superceeding the base of the old-2-changesets-branch,
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.. * 1 new changesets on the old-1-changeset-branch superceeding the head of the other
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..
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.. expected-result:
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..
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.. * push allowed
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..
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.. graph-summary:
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..
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.. B'◔⇢ø B
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..   | |
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.. A | ø⇠◔ A'
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..   | |/
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.. C  |
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..    \|
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..     
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  $ . $TESTDIR/testlib/push-checkheads-util.sh
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Test setup
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----------
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  $ mkdir A6
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  $ cd A6
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  $ setuprepos
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  creating basic server and client repo
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  updating to branch default
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  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
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  $ cd server
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  $ mkcommit B0
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  $ hg up 0
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  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
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  $ mkcommit C0
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  created new head
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  $ cd ../client
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  $ hg pull
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  pulling from $TESTTMP/A6/server
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  searching for changes
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  adding changesets
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  adding manifests
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  adding file changes
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  added 2 changesets with 2 changes to 2 files (+1 heads)
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  new changesets d73caddc5533:0f88766e02d6
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  (run 'hg heads' to see heads, 'hg merge' to merge)
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  $ hg up 0
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  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
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  $ mkcommit A1
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  created new head
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  $ hg up 'desc(C0)'
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  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
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  $ mkcommit B1
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  $ hg debugobsolete `getid "desc(A0)" ` `getid "desc(A1)"`
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  obsoleted 1 changesets
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  $ hg debugobsolete `getid "desc(B0)" ` `getid "desc(B1)"`
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  obsoleted 1 changesets
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  $ hg log -G --hidden
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  @  d70a1f75a020 (draft): B1
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  |
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  | o  f6082bc4ffef (draft): A1
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  | |
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  o |  0f88766e02d6 (draft): C0
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  |/
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  | x  d73caddc5533 (draft): B0
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  | x  8aaa48160adc (draft): A0
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  |/
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  o  1e4be0697311 (public): root
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Actual testing
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--------------
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  $ hg push
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  pushing to $TESTTMP/A6/server
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  searching for changes
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  adding changesets
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  adding manifests
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  adding file changes
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  added 2 changesets with 2 changes to 2 files (+1 heads)
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  2 new obsolescence markers
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  obsoleted 2 changesets
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  $ cd ../..