This code uses the ast module, which was new in 2.6, so we'll skip

this test on anything earlier.

  $ $PYTHON -c 'import sys ; assert sys.version_info >= (2, 6)' || exit 80

  $ import_checker="$TESTDIR"/../contrib/import-checker.py

Run the doctests from the import checker, and make sure

it's working correctly.

  $ TERM=dumb

  $ export TERM

  $ python -m doctest $import_checker

  $ cd "$TESTDIR"/..

  $ if hg identify -q > /dev/null 2>&1; then :

  > else

  >     echo "skipped: not a Mercurial working dir" >&2

  >     exit 80

  > fi

There are a handful of cases here that require renaming a module so it

doesn't overlap with a stdlib module name. There are also some cycles

here that we should still endeavor to fix, and some cycles will be

hidden by deduplication algorithm in the cycle detector, so fixing

these may expose other cycles.

  $ hg locate 'mercurial/**.py' | sed 's-\\-/-g' | xargs python "$import_checker"

  mercurial/dispatch.py mixed imports

     stdlib:    commands

     relative:  error, extensions, fancyopts, hg, hook, util

  mercurial/fileset.py mixed imports

     stdlib:    parser

     relative:  error, merge, util

  mercurial/revset.py mixed imports

     stdlib:    parser

     relative:  discovery, error, hbisect, phases, util

  mercurial/templater.py mixed imports

     stdlib:    parser

     relative:  config, error, templatefilters, templatekw, util

  mercurial/ui.py mixed imports

     stdlib:    formatter

     relative:  config, error, scmutil, util

  Import cycle: mercurial.cmdutil -> mercurial.context -> mercurial.subrepo -> mercurial.cmdutil -> mercurial.cmdutil