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# reproduce issue2264, issue2516
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create test repo
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$ cat <<EOF >> $HGRCPATH
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> [extensions]
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> transplant =
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> EOF
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$ hg init repo
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$ cd repo
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$ template="{rev} {desc|firstline} [{branch}]\n"
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# we need to start out with two changesets on the default branch
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# in order to avoid the cute little optimization where transplant
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# pulls rather than transplants
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add initial changesets
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$ echo feature1 > file1
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$ hg ci -Am"feature 1"
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adding file1
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$ echo feature2 >> file2
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$ hg ci -Am"feature 2"
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adding file2
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# The changes to 'bugfix' are enough to show the bug: in fact, with only
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# those changes, it's a very noisy crash ("RuntimeError: nothing
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# committed after transplant"). But if we modify a second file in the
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# transplanted changesets, the bug is much more subtle: transplant
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# silently drops the second change to 'bugfix' on the floor, and we only
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# see it when we run 'hg status' after transplanting. Subtle data loss
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# bugs are worse than crashes, so reproduce the subtle case here.
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commit bug fixes on bug fix branch
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$ hg branch fixes
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marked working directory as branch fixes
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(branches are permanent and global, did you want a bookmark?)
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$ echo fix1 > bugfix
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$ echo fix1 >> file1
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$ hg ci -Am"fix 1"
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adding bugfix
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$ echo fix2 > bugfix
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$ echo fix2 >> file1
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$ hg ci -Am"fix 2"
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$ hg log -G --template="$template"
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@ 3 fix 2 [fixes]
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o 2 fix 1 [fixes]
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o 1 feature 2 [default]
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o 0 feature 1 [default]
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transplant bug fixes onto release branch
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$ hg update 0
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1 files updated, 0 files merged, 2 files removed, 0 files unresolved
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$ hg branch release
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marked working directory as branch release
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$ hg transplant 2 3
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applying [0-9a-f]{12} (re)
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[0-9a-f]{12} transplanted to [0-9a-f]{12} (re)
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applying [0-9a-f]{12} (re)
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[0-9a-f]{12} transplanted to [0-9a-f]{12} (re)
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$ hg log -G --template="$template"
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@ 5 fix 2 [release]
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o 4 fix 1 [release]
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| o 3 fix 2 [fixes]
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| |
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| o 2 fix 1 [fixes]
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| o 1 feature 2 [default]
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|/
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o 0 feature 1 [default]
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$ hg status
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$ hg status --rev 0:4
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M file1
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A bugfix
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$ hg status --rev 4:5
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M bugfix
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M file1
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now test that we fixed the bug for all scripts/extensions
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$ cat > $TESTTMP/committwice.py <<__EOF__
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> from mercurial import ui, hg, match, node
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> from time import sleep
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>
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> def replacebyte(fn, b):
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> f = open(fn, "rb+")
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> f.seek(0, 0)
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> f.write(b)
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> f.close()
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>
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> def printfiles(repo, rev):
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> print "revision %s files: %s" % (rev, repo[rev].files())
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>
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> repo = hg.repository(ui.ui.load(), '.')
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> assert len(repo) == 6, \
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> "initial: len(repo): %d, expected: 6" % len(repo)
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>
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> replacebyte("bugfix", "u")
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> sleep(2)
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> try:
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> print "PRE: len(repo): %d" % len(repo)
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> wlock = repo.wlock()
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> lock = repo.lock()
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> replacebyte("file1", "x")
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> repo.commit(text="x", user="test", date=(0, 0))
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> replacebyte("file1", "y")
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> repo.commit(text="y", user="test", date=(0, 0))
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> print "POST: len(repo): %d" % len(repo)
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> finally:
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> lock.release()
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> wlock.release()
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> printfiles(repo, 6)
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> printfiles(repo, 7)
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> __EOF__
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$ $PYTHON $TESTTMP/committwice.py
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PRE: len(repo): 6
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POST: len(repo): 8
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revision 6 files: ['bugfix', 'file1']
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revision 7 files: ['file1']
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Do a size-preserving modification outside of that process
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$ echo abcd > bugfix
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$ hg status
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M bugfix
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$ hg log --template "{rev} {desc} {files}\n" -r5:
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5 fix 2 bugfix file1
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6 x bugfix file1
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7 y file1
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$ cd ..
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