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revlog: extract function for getting node from known-to-exist rev...

revlog: extract function for getting node from known-to-exist rev Many of the calls to index_node() (which converts a rev to a nodeid) are done with a rev that's know to exist. If the function fails, there's something really wrong and we should just abort. This was done in only one place. This patch starts by extracting that code to a function that we can reuse in later patches. Differential Revision: https://phab.mercurial-scm.org/D3456

Boris Feld - - Load All Authors

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      ====================================

      Testing head checking code: Case A-1

      ====================================

      Mercurial checks for the introduction of new heads on push. Evolution comes

      into play to detect if existing branches on the server are being replaced by

      some of the new one we push.

      This case is part of a series of tests checking this behavior.

      Category A: simple case involving a branch being superceeded by another.

      TestCase 1: single-changeset branch

      .. old-state:

      ..

      .. * 1 changeset branch

      ..

      .. new-state:

      ..

      .. * 1 changeset branch succeeding to A

      ..

      .. expected-result:

      ..

      .. * push allowed

      ..

      .. graph-summary:

      ..

      ..   A ø⇠◔ A'

      ..     |/

      ..     ●

        $ . $TESTDIR/testlib/push-checkheads-util.sh

      Test setup

      ----------

        $ mkdir A1

        $ cd A1

        $ setuprepos

        creating basic server and client repo

        updating to branch default

        2 files updated, 0 files merged, 0 files removed, 0 files unresolved

        $ cd client

        $ hg up 0

        0 files updated, 0 files merged, 1 files removed, 0 files unresolved

        $ mkcommit A1

        created new head

        $ hg debugobsolete `getid "desc(A0)" ` `getid "desc(A1)"`

        obsoleted 1 changesets

        $ hg log -G --hidden

        @  f6082bc4ffef (draft): A1

        |

        | x  8aaa48160adc (draft): A0

        |/

        o  1e4be0697311 (public): root

      Actual testing

      --------------

        $ hg push

        pushing to $TESTTMP/A1/server

        searching for changes

        adding changesets

        adding manifests

        adding file changes

        added 1 changesets with 1 changes to 1 files (+1 heads)

        1 new obsolescence markers

        obsoleted 1 changesets

        $ cd ../..

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				====================================
				Testing head checking code: Case A-1
				====================================

				Mercurial checks for the introduction of new heads on push. Evolution comes
				into play to detect if existing branches on the server are being replaced by
				some of the new one we push.

				This case is part of a series of tests checking this behavior.

				Category A: simple case involving a branch being superceeded by another.
				TestCase 1: single-changeset branch

				.. old-state:
				..
				.. * 1 changeset branch
				..
				.. new-state:
				..
				.. * 1 changeset branch succeeding to A
				..
				.. expected-result:
				..
				.. * push allowed
				..
				.. graph-summary:
				..
				.. A ø⇠◔ A'
				.. \|/
				.. ●

				$ . $TESTDIR/testlib/push-checkheads-util.sh

				Test setup
				----------

				$ mkdir A1
				$ cd A1
				$ setuprepos
				creating basic server and client repo
				updating to branch default
				2 files updated, 0 files merged, 0 files removed, 0 files unresolved
				$ cd client
				$ hg up 0
				0 files updated, 0 files merged, 1 files removed, 0 files unresolved
				$ mkcommit A1
				created new head
				$ hg debugobsolete `getid "desc(A0)" ` `getid "desc(A1)"`
				obsoleted 1 changesets
				$ hg log -G --hidden
				@ f6082bc4ffef (draft): A1
				\|
				\| x 8aaa48160adc (draft): A0
				\|/
				o 1e4be0697311 (public): root


				Actual testing
				--------------

				$ hg push
				pushing to $TESTTMP/A1/server
				searching for changes
				adding changesets
				adding manifests
				adding file changes
				added 1 changesets with 1 changes to 1 files (+1 heads)
				1 new obsolescence markers
				obsoleted 1 changesets

				$ cd ../..