Mercurial > hg
view tests/test-revlog-ancestry.py @ 33087:fcd1c483f5ea
strip: add a delayedstrip method that works in a transaction
For long, the fact that strip does not work inside a transaction and some
code has to work with both obsstore and fallback to strip lead to duplicated
code like:
with repo.transaction():
....
if obsstore:
obsstore.createmarkers(...)
if not obsstore:
repair.strip(...)
Things get more complex when you want to call something which may call strip
under the hood. Like you cannot simply write:
with repo.transaction():
....
rebasemod.rebase(...) # may call "strip", so this doesn't work
But you do want rebase to run inside a same transaction if possible, so the
code may look like:
with repo.transaction():
....
if obsstore:
rebasemod.rebase(...)
obsstore.createmarkers(...)
if not obsstore:
rebasemod.rebase(...)
repair.strip(...)
That's ugly and error-prone. Ideally it's possible to just write:
with repo.transaction():
rebasemod.rebase(...)
saferemovenodes(...)
This patch is the first step towards that. It adds a "delayedstrip" method
to repair.py which maintains a postclose callback in the transaction object.
author | Jun Wu <quark@fb.com> |
---|---|
date | Sun, 25 Jun 2017 10:38:45 -0700 |
parents | d83ca854fa21 |
children | 14d2371216ba |
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from __future__ import absolute_import, print_function import os from mercurial import ( hg, merge, ui as uimod, ) u = uimod.ui.load() repo = hg.repository(u, 'test1', create=1) os.chdir('test1') def commit(text, time): repo.commit(text=text, date="%d 0" % time) def addcommit(name, time): f = open(name, 'w') f.write('%s\n' % name) f.close() repo[None].add([name]) commit(name, time) def update(rev): merge.update(repo, rev, False, True) def merge_(rev): merge.update(repo, rev, True, False) if __name__ == '__main__': addcommit("A", 0) addcommit("B", 1) update(0) addcommit("C", 2) merge_(1) commit("D", 3) update(2) addcommit("E", 4) addcommit("F", 5) update(3) addcommit("G", 6) merge_(5) commit("H", 7) update(5) addcommit("I", 8) # Ancestors print('Ancestors of 5') for r in repo.changelog.ancestors([5]): print(r, end=' ') print('\nAncestors of 6 and 5') for r in repo.changelog.ancestors([6, 5]): print(r, end=' ') print('\nAncestors of 5 and 4') for r in repo.changelog.ancestors([5, 4]): print(r, end=' ') print('\nAncestors of 7, stop at 6') for r in repo.changelog.ancestors([7], 6): print(r, end=' ') print('\nAncestors of 7, including revs') for r in repo.changelog.ancestors([7], inclusive=True): print(r, end=' ') print('\nAncestors of 7, 5 and 3, including revs') for r in repo.changelog.ancestors([7, 5, 3], inclusive=True): print(r, end=' ') # Descendants print('\n\nDescendants of 5') for r in repo.changelog.descendants([5]): print(r, end=' ') print('\nDescendants of 5 and 3') for r in repo.changelog.descendants([5, 3]): print(r, end=' ') print('\nDescendants of 5 and 4') print(*repo.changelog.descendants([5, 4]), sep=' ')