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filemerge: add internal merge tool to dump files forcibly...

filemerge: add internal merge tool to dump files forcibly Internal merge tool :dump implies premerge. Therefore, files aren't dumped, if premerge runs successfully. This undocumented behavior might confuse users, if they want to always dump files. But just making :dump omit premerge might cause backward compatibility issue for existing automation. This patch adds new internal merge tool :forcedump, which works as same as :dump, but omits premerge always. Internal tools annotated with "nomerge" should merge "change and delete" correctly, but _forcedump() can't. Therefore, it is annotated with "mergeonly" to always omit premerge, even though it doesn't merge files actually. This patch also adds explanation about premerge to :dump, to clarify how :dump actually works. BTW, this patch specifies internal tools with "internal:" prefix in newly added test scenario in test-merge-tools.t, even though this prefix is already deprecated. This is only for similarity to other tests in test-merge-tools.t.

Siddharth Agarwal - - 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 foo and baz to baz

        merging bar failed!

        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 baz and foo to baz

        merging bar failed!

        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 re-merge all unresolved files)

        [255]

      resolve all

        $ hg resolve -a

        merging bar

        warning: conflicts while merging bar! (edit, then use 'hg resolve --mark')

        [1]

      after

        $ hg resolve -l

        U bar

        R baz

        $ cd ..

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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 foo and baz to baz
				merging bar failed!
				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 baz and foo to baz
				merging bar failed!
				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 re-merge all unresolved files)
				[255]

				resolve all
				$ hg resolve -a
				merging bar
				warning: conflicts while merging bar! (edit, then use 'hg resolve --mark')
				[1]

				after
				$ hg resolve -l
				U bar
				R baz

				$ cd ..