view tests/testlib/check-min-versions.py @ 6889:a66cf9008781

obslog: also display patch for rebased changesets

This applies the same logic that is used for "merge-diff" to rebased
changesets. The successors' content is compared to the content of the
predecessors rebased in-memory on the new parents.

This highlights the changes that were actually introduced while rebasing (like
conflict resolution or API adjustment).

As a side effect, obslog now also outputs slightly more diffs for splits,
showing what parts of the original big changeset were moved to the smaller
split components (but for now it only works for the first few changesets).

#!/usr/bin/env python
"""
This script takes `minimumhgversion` and `testedwith` values from the first
file (e.g. hgext3rd/evolve/metadata.py) and mercurial package versions from the
second file (e.g. debian/control) and compares them using a set of rules to
find any issues.

Rules:

    - if `minimumhgversion` is a feature release, the first version from
      `testedwith` should belong to that feature release

    - if `minimumhgversion` is a bugfix release, the first version from
      `testedwith` should be the same

    - mercurial package versions (from both Depends and Build-Depends sections)
      should match `minimumhgversion`

Usage: $0 MFILE CFILE where MFILE contains extension metadata and CFILE is a
debian/control file.
"""

from __future__ import print_function

import argparse
import os
import re

def grepall(workdir, linere):
    for root, dirs, files in os.walk(workdir):
        for fname in files:
            if not fname.endswith('.py'):
                continue
            path = os.path.join(root, fname)
            with open(path, 'r') as src:
                for line in src:
                    for groups in linere.findall(line):
                        yield path, groups

def main():
    ap = argparse.ArgumentParser()
    ap.add_argument('mfile', help='.py file with `testedwith`')
    ap.add_argument('cfile', help='debian/control file')

    opts = ap.parse_args()

    mre = re.compile(r"^minimumhgversion = b'([0-9.]+)'")
    mtre = re.compile(r"^testedwith = b'([0-9.]+) ")
    minversion = ''
    mintestedversion = ''

    with open(opts.mfile, 'r') as src:
        for line in src:
            if not minversion:
                groups = mre.findall(line)
                if groups:
                    minversion = groups[0]
            if not mintestedversion:
                groups = mtre.findall(line)
                if groups:
                    mintestedversion = groups[0]

    if not minversion:
        print('could not find `minimumhgversion` variable in %s' % opts.mfile)

    if not mintestedversion:
        print('could not find `testedwith` variable in %s' % opts.mfile)

    if minversion.count('.') > 1:
        # `minversion` is a bugfix release
        if minversion != mintestedversion:
            print('`minimumhgversion` is a bugfix release, the first version '
                  'in `testedwith` should be the same: %s and %s'
                  % (minversion, mintestedversion))

    else:
        # matching X.Y to determine the "feature release" version
        frelre = re.compile(r"([0-9]+).([0-9]+)")

        if frelre.findall(minversion) != frelre.findall(mintestedversion):
            print('the first version in `testedwith` does not belong to the '
                  'same feature release as `minimumhgversion`: %s and %s'
                  % (mintestedversion, minversion))

    cre = re.compile(r"^ mercurial \(>= ([0-9.]+)\)")
    depversion = ''

    with open(opts.cfile, 'r') as src:
        for line in src:
            groups = cre.findall(line)
            if groups:
                depversion = groups[0]
                if minversion != depversion:
                    print('versions differ: %s from `minimumhgversion`, %s '
                          'from dependencies' % (minversion, depversion))

    if not depversion:
        print('could not find dependency on mercurial in %s' % opts.cfile)

if __name__ == '__main__':
    main()