Mercurial > hgsubversion
changeset 1469:7bb2c6ca4d24
maps: implement migration from SqliteRevMap to RevMap
It'd be good to let user migrate up and down freely.
| author | Jun Wu <quark@fb.com> |
|---|---|
| date | Wed, 15 Jun 2016 18:25:26 +0100 |
| parents | b98ff95b5861 |
| children | b6e2bc962536 |
| files | hgsubversion/maps.py |
| diffstat | 1 files changed, 15 insertions(+), 0 deletions(-) [+] |
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--- a/hgsubversion/maps.py +++ b/hgsubversion/maps.py @@ -420,6 +420,13 @@ class RevMap(dict): raise return iter([]) ver = int(f.readline()) + if ver == SqliteRevMap.VERSION: + revmap = SqliteRevMap(self._filepath, self._lastpulled_file) + tmppath = '%s.tmp' % self._filepath + revmap.exportrevmapv1(tmppath) + os.rename(tmppath, self._filepath) + hgutil.unlinkpath(revmap._dbpath) + return self._readmapfile() if ver != self.VERSION: raise hgutil.Abort('revmap too new -- please upgrade') return f @@ -732,6 +739,14 @@ class SqliteRevMap(collections.MutableMa data[revnum, branch or None] = bin(ha) self._insert([(r, b, h) for (r, b), h in data.iteritems()]) + @util.gcdisable + def exportrevmapv1(self, path): + with open(path, 'w') as f: + f.write('%s\n' % RevMap.VERSION) + for row in self._query('SELECT rev, branch, hash FROM revmap'): + rev, br, ha = row + f.write('%s %s %s\n' % (rev, hex(ha), br)) + class FileMap(object):