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scmutil: make shortest() respect disambiguation revset...

scmutil: make shortest() respect disambiguation revset The previous patch would let you use a shorter prefix if the prefix is unique within a configured revset. However, that's not very useful if there's no simple way of knowing what that shorter prefix is. This patch adapts the shortest() template function to use the shorter prefixes for nodes in the configured revset. This is currently extremely slow, because it calculates the revset for each call to shortest(). To make this faster, the next patch will start caching the revset instance. Ideally we'd cache a prefix tree instance instead. Differential Revision: https://phab.mercurial-scm.org/D4038

Matt Mackall - - Load All Authors

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      https://bz.mercurial-scm.org/1877

        $ hg init a

        $ cd a

        $ echo a > a

        $ hg add a

        $ hg ci -m 'a'

        $ echo b > a

        $ hg ci -m'b'

        $ hg up 0

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

        $ hg book main

        $ hg book

         * main                      0:cb9a9f314b8b

        $ echo c > c

        $ hg add c

        $ hg ci -m'c'

        created new head

        $ hg book

         * main                      2:d36c0562f908

        $ hg heads

        changeset:   2:d36c0562f908

        bookmark:    main

        tag:         tip

        parent:      0:cb9a9f314b8b

        user:        test

        date:        Thu Jan 01 00:00:00 1970 +0000

        summary:     c

        changeset:   1:1e6c11564562

        user:        test

        date:        Thu Jan 01 00:00:00 1970 +0000

        summary:     b

        $ hg up 1e6c11564562

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

        (leaving bookmark main)

        $ hg merge main

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

        (branch merge, don't forget to commit)

        $ hg book

           main                      2:d36c0562f908

        $ hg ci -m'merge'

        $ hg book

           main                      2:d36c0562f908

        $ cd ..

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	Repositories
g s	Goto summary page
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				https://bz.mercurial-scm.org/1877

				$ hg init a
				$ cd a
				$ echo a > a
				$ hg add a
				$ hg ci -m 'a'
				$ echo b > a
				$ hg ci -m'b'
				$ hg up 0
				1 files updated, 0 files merged, 0 files removed, 0 files unresolved
				$ hg book main
				$ hg book
				* main 0:cb9a9f314b8b
				$ echo c > c
				$ hg add c
				$ hg ci -m'c'
				created new head
				$ hg book
				* main 2:d36c0562f908
				$ hg heads
				changeset: 2:d36c0562f908
				bookmark: main
				tag: tip
				parent: 0:cb9a9f314b8b
				user: test
				date: Thu Jan 01 00:00:00 1970 +0000
				summary: c

				changeset: 1:1e6c11564562
				user: test
				date: Thu Jan 01 00:00:00 1970 +0000
				summary: b

				$ hg up 1e6c11564562
				1 files updated, 0 files merged, 1 files removed, 0 files unresolved
				(leaving bookmark main)
				$ hg merge main
				1 files updated, 0 files merged, 0 files removed, 0 files unresolved
				(branch merge, don't forget to commit)
				$ hg book
				main 2:d36c0562f908
				$ hg ci -m'merge'
				$ hg book
				main 2:d36c0562f908

				$ cd ..