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subrepo: avoids empty commit when .hgsubstate is dirty (issue2403)...

subrepo: avoids empty commit when .hgsubstate is dirty (issue2403) This patch avoids empty commit when .hgsubstate is dirty. Empty commit was caused by .hgsubstate being updated back to the state of the working copy parent when committing, if a user had changed it manually and not made any changes in subrepositories. The subrepository state from the working copies parent is compared with the state calculated as a result of trying to commit the subrepositories. If the two states are the same, then return None otherwise the commit is just done. The line: "committing subrepository x" will be written if there is nothing committed, but .hgsubstate is dirty for x subrepository.

Matt Mackall - - Load All Authors

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      test that we don't interrupt the merge session if

      a file-level merge failed

        $ hg init repo

        $ cd repo

        $ echo foo > foo

        $ echo a > bar

        $ hg ci -Am 'add foo'

        adding bar

        adding foo

        $ hg mv foo baz

        $ echo b >> bar

        $ echo quux > quux1

        $ hg ci -Am 'mv foo baz'

        adding quux1

        $ hg up -qC 0

        $ echo >> foo

        $ echo c >> bar

        $ echo quux > quux2

        $ hg ci -Am 'change foo'

        adding quux2

        created new head

      test with the rename on the remote side

        $ HGMERGE=false hg merge

        merging bar

        merging bar failed!

        merging foo and baz to baz

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

        use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon

        [1]

        $ hg resolve -l

        U bar

        R baz

      test with the rename on the local side

        $ hg up -C 1

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

        $ HGMERGE=false hg merge

        merging bar

        merging bar failed!

        merging baz and foo to baz

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

        use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon

        [1]

      show unresolved

        $ hg resolve -l

        U bar

        R baz

      unmark baz

        $ hg resolve -u baz

      show

        $ hg resolve -l

        U bar

        U baz

        $ hg st

        M bar

        M baz

        M quux2

        ? bar.orig

      re-resolve baz

        $ hg resolve baz

        merging baz and foo to baz

      after resolve

        $ hg resolve -l

        U bar

        R baz

      resolve all warning

        $ hg resolve

        abort: no files or directories specified; use --all to remerge all files

        [255]

      resolve all

        $ hg resolve -a

        merging bar

        warning: conflicts during merge.

        merging bar failed!

        [1]

      after

        $ hg resolve -l

        U bar

        R baz

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				test that we don't interrupt the merge session if
				a file-level merge failed

				$ hg init repo
				$ cd repo

				$ echo foo > foo
				$ echo a > bar
				$ hg ci -Am 'add foo'
				adding bar
				adding foo

				$ hg mv foo baz
				$ echo b >> bar
				$ echo quux > quux1
				$ hg ci -Am 'mv foo baz'
				adding quux1

				$ hg up -qC 0
				$ echo >> foo
				$ echo c >> bar
				$ echo quux > quux2
				$ hg ci -Am 'change foo'
				adding quux2
				created new head

				test with the rename on the remote side
				$ HGMERGE=false hg merge
				merging bar
				merging bar failed!
				merging foo and baz to baz
				1 files updated, 1 files merged, 0 files removed, 1 files unresolved
				use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
				[1]
				$ hg resolve -l
				U bar
				R baz

				test with the rename on the local side
				$ hg up -C 1
				3 files updated, 0 files merged, 1 files removed, 0 files unresolved
				$ HGMERGE=false hg merge
				merging bar
				merging bar failed!
				merging baz and foo to baz
				1 files updated, 1 files merged, 0 files removed, 1 files unresolved
				use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
				[1]

				show unresolved
				$ hg resolve -l
				U bar
				R baz

				unmark baz
				$ hg resolve -u baz

				show
				$ hg resolve -l
				U bar
				U baz
				$ hg st
				M bar
				M baz
				M quux2
				? bar.orig

				re-resolve baz
				$ hg resolve baz
				merging baz and foo to baz

				after resolve
				$ hg resolve -l
				U bar
				R baz

				resolve all warning
				$ hg resolve
				abort: no files or directories specified; use --all to remerge all files
				[255]

				resolve all
				$ hg resolve -a
				merging bar
				warning: conflicts during merge.
				merging bar failed!
				[1]

				after
				$ hg resolve -l
				U bar
				R baz