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bundle2: add some debugging information to the not-a-bundle error

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I found this useful while trying to debug wireproto-related issues.
This commit is contained in:
Siddharth Agarwal 2017-06-27 14:30:55 -07:00
parent 738cc44d4e
commit 1920cf0324
1 changed files with 3 additions and 0 deletions
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3
mercurial/bundle2.py
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@ -678,6 +678,9 @@ def getunbundler(ui, fp, magicstring=None):
magicstring = changegroup.readexactly(fp, 4)
magic, version = magicstring[0:2], magicstring[2:4]
if magic != 'HG':
ui.debug(
"error: invalid magic: %r (version %r), should be 'HG'\n"
% (magic, version))
raise error.Abort(_('not a Mercurial bundle'))
unbundlerclass = formatmap.get(version)
if unbundlerclass is None: