comparison tests/test-extension.t @ 16744:1c9f58a6c8f1

dispatch: try and identify third-party extensions as sources of tracebacks

Extension authors should explicitly declare their supported hg
versions and include a buglink attribute in their extension. In the
event that a traceback occurs, we'll identify the
least-recently-tested extensionas the most likely source of the defect
and suggest the user disable that extension.

Packagers should make every effort to ship hg versions from exact
tags, or with as few modifications as possible so that the versioning
can work appropriately.

16743:38caf405d010

  $ hg --config extensions.path=./path.py help foo > /dev/null
  warning: error finding commands in $TESTTMP/hgext/forest.py (glob)
  hg: unknown command 'foo'
  warning: error finding commands in $TESTTMP/hgext/forest.py (glob)
  [255]

16744:1c9f58a6c8f1

  $ hg --config extensions.path=./path.py help foo > /dev/null
  warning: error finding commands in $TESTTMP/hgext/forest.py (glob)
  hg: unknown command 'foo'
  warning: error finding commands in $TESTTMP/hgext/forest.py (glob)
  [255]

  $ cat > throw.py <<EOF
  > from mercurial import cmdutil, commands
  > cmdtable = {}
  > command = cmdutil.command(cmdtable)
  > class Bogon(Exception): pass
  > 
  > @command('throw', [], 'hg throw')
  > def throw(ui, **opts):
  >     """throws an exception"""
  >     raise Bogon()
  > commands.norepo += " throw"
  > EOF
No declared supported version, extension complains:
  $ hg --config extensions.throw=throw.py throw 2>&1 | egrep '^\*\*'
  ** Unknown exception encountered with possibly-broken third-party extension throw
  ** which supports versions unknown of Mercurial.
  ** Please disable throw and try your action again.
  ** If that fixes the bug please report it to the extension author.
  ** Python * (glob)
  ** Mercurial Distributed SCM * (glob)
  ** Extensions loaded: throw
If the extension specifies a buglink, show that:
  $ echo 'buglink = "http://example.com/bts"' >> throw.py
  $ rm -f throw.pyc throw.pyo
  $ hg --config extensions.throw=throw.py throw 2>&1 | egrep '^\*\*'
  ** Unknown exception encountered with possibly-broken third-party extension throw
  ** which supports versions unknown of Mercurial.
  ** Please disable throw and try your action again.
  ** If that fixes the bug please report it to http://example.com/bts
  ** Python * (glob)
  ** Mercurial Distributed SCM (*) (glob)
  ** Extensions loaded: throw
If the extensions declare outdated versions, accuse the older extension first:
  $ echo "testedwith = '1.9.3'" >> older.py
  $ echo "testedwith = '2.1.1'" >> throw.py
  $ rm -f throw.pyc throw.pyo
  $ hg --config extensions.throw=throw.py --config extensions.older=older.py \
  >   throw 2>&1 | egrep '^\*\*'
  ** Unknown exception encountered with possibly-broken third-party extension older
  ** which supports versions 1.9.3 of Mercurial.
  ** Please disable older and try your action again.
  ** If that fixes the bug please report it to the extension author.
  ** Python * (glob)
  ** Mercurial Distributed SCM (*) (glob)
  ** Extensions loaded: throw, older

Declare the version as supporting this hg version, show regular bts link:
  $ hgver=`python -c 'from mercurial import util; print util.version().split("+")[0]'`
  $ echo 'testedwith = """'"$hgver"'"""' >> throw.py
  $ rm -f throw.pyc throw.pyo
  $ hg --config extensions.throw=throw.py throw 2>&1 | egrep '^\*\*'
  ** unknown exception encountered, please report by visiting
  ** http://mercurial.selenic.com/wiki/BugTracker
  ** Python * (glob)
  ** Mercurial Distributed SCM (*) (glob)
  ** Extensions loaded: throw