Bug#904522: lintian: Should detect misspellings of Rules-Requires-Root

[Axel Beckert <abe@debian.org>]

Package: lintian
Version: 2.5.93
Severity: wishlist

Hi,

I just made a commit with a "Rules-Require-Root" field and the according
changelog entry. I just noticed the typo (missing "s") because of a
dpkg-source warning. Lintian was silent about this, not even an unknown
field or such has been reported.

It would be nice if lintian would detect any obviously misspelled
variant of Rules-Requires-Root, i.e. those which are just a permutation
of which of the three words ends in "s" and which not.

Suggested pseudo code:

if ($field_name =~ /^Rules?-Requires?-Roots?$/ and
    $field_name ne 'Rules-Requires-Root') {
    tag 'misspelled-rules-requires-root-field-name'
}

Files to be checked at least: debian/control and debian/changelog.

-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (990, 'unstable'), (600, 'testing'), (500, 'unstable-debug'), (500, 'buildd-unstable'), (110, 'experimental'), (1, 'experimental-debug'), (1, 'buildd-experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.17.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=C.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)
LSM: AppArmor: enabled

Versions of packages lintian depends on:
ii  binutils                       2.31.1-1
ii  bzip2                          1.0.6-8.1
ii  diffstat                       1.61-1+b1
ii  dpkg                           1.19.0.5+b1
ii  file                           1:5.33-3
ii  gettext                        0.19.8.1-6+b1
ii  intltool-debian                0.35.0+20060710.4
ii  libapt-pkg-perl                0.1.34
ii  libarchive-zip-perl            1.60-1
ii  libclass-accessor-perl         0.51-1
ii  libclone-perl                  0.39-1
ii  libdigest-sha-perl             6.02-1
ii  libdpkg-perl                   1.19.0.5
ii  libemail-valid-perl            1.202-1
ii  libfile-basedir-perl           0.08-1
ii  libipc-run-perl                20180523.0-1
ii  liblist-moreutils-perl         0.416-1+b3
ii  libparse-debianchangelog-perl  1.2.0-12
ii  libtext-levenshtein-perl       0.13-1
ii  libtimedate-perl               2.3000-2
ii  liburi-perl                    1.74-1
ii  libxml-simple-perl             2.25-1
ii  libyaml-libyaml-perl           0.72+repack-1
ii  man-db                         2.8.3-2
ii  patchutils                     0.3.4-2
ii  perl [libdigest-sha-perl]      5.26.2-6
ii  t1utils                        1.41-2
ii  xz-utils                       5.2.2-1.3

Versions of packages lintian recommends:
ii  libperlio-gzip-perl  0.19-1+b4

Versions of packages lintian suggests:
ii  binutils-multiarch     2.31.1-1
ii  dpkg-dev               1.19.0.5
ii  libhtml-parser-perl    3.72-3+b2
ii  libtext-template-perl  1.53-1

-- no debconf information