upstream/mercurial-mirror Files · tests/test-push-checkheads-unpushed-D1.t

show: use consistent (and possibly shorter) node lengths...

show: use consistent (and possibly shorter) node lengths `hg show` makes heavy use of shortest() to limit the length of the node hash. For the "stack" and "work" views, you are often looking at multiple lines of similar output for "lines" of work. It is visually appeasing for things to vertically align. A naive use of {shortest(node, N)} could result in variable length nodes and for the first character of the description to vary by a column or two. We implement a function to determine the longest shortest prefix for a set of revisions. The new function is used to determine the printed node length for all `hg show` views. .. feature:: show: use consistent node length in views Our previous shortest node length of 5 was arbitrarily chosen. shortest() already does the work of ensuring that a partial node isn't ambiguous with an integer revision, which is our primary risk of a collision for very short nodes. It should be safe to go with the shortest node possible. Existing code is also optimized to handle nodes as short as 4. So, we decrease the minimum hash length from 5 to 4. We also add a test demonstrating that prefix collisions increase the node length. .. feature:: show: decrease minimum displayed hash length from 5 to 4 Differential Revision: https://phab.mercurial-scm.org/D558

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

      Testing head checking code: Case D-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 D: remote head is "obs-affected" locally, but result is not part of the push

      TestCase 1: remote head is rewritten, but successors is not part of the push

      .. old-state:

      ..

      .. * 1 changeset branch

      ..

      .. new-state:

      ..

      .. * 1 changeset branch succeeding the old branch

      .. * 1 new unrelated branch

      ..

      .. expected-result:

      ..

      .. * pushing only the unrelated branch: denied

      ..

      .. graph-summary:

      ..

      ..   A ø⇠○ A'

      ..     |/

      ..     | ◔ B

      ..     |/

      ..     ●

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

      Test setup

      ----------

        $ mkdir D1

        $ cd D1

        $ 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 up 0

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

        $ mkcommit B0

        created new head

        $ hg log -G --hidden

        @  74ff5441d343 (draft): B0

        |

        | o  f6082bc4ffef (draft): A1

        |/

        | x  8aaa48160adc (draft): A0

        |/

        o  1e4be0697311 (public): root

      Actual testing

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

        $ hg push -r 'desc(B0)'

        pushing to $TESTTMP/D1/server (glob)

        searching for changes

        abort: push creates new remote head 74ff5441d343!

        (merge or see 'hg help push' for details about pushing new heads)

        [255]

        $ cd ../..

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				====================================
				Testing head checking code: Case D-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 D: remote head is "obs-affected" locally, but result is not part of the push
				TestCase 1: remote head is rewritten, but successors is not part of the push

				.. old-state:
				..
				.. * 1 changeset branch
				..
				.. new-state:
				..
				.. * 1 changeset branch succeeding the old branch
				.. * 1 new unrelated branch
				..
				.. expected-result:
				..
				.. * pushing only the unrelated branch: denied
				..
				.. graph-summary:
				..
				.. A ø⇠○ A'
				.. \|/
				.. \| ◔ B
				.. \|/
				.. ●

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

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

				$ mkdir D1
				$ cd D1
				$ 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 up 0
				0 files updated, 0 files merged, 1 files removed, 0 files unresolved
				$ mkcommit B0
				created new head
				$ hg log -G --hidden
				@ 74ff5441d343 (draft): B0
				\|
				\| o f6082bc4ffef (draft): A1
				\|/
				\| x 8aaa48160adc (draft): A0
				\|/
				o 1e4be0697311 (public): root


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

				$ hg push -r 'desc(B0)'
				pushing to $TESTTMP/D1/server (glob)
				searching for changes
				abort: push creates new remote head 74ff5441d343!
				(merge or see 'hg help push' for details about pushing new heads)
				[255]

				$ cd ../..