build-aux: rewrite po file minimizer in Python

As part of an goal to eliminate Perl from libvirt build tools,
rewrite the minimize-po.pl tool in Python.

This was a straight conversion, manually going line-by-line to
change the syntax from Perl to Python. Thus the overall structure
of the file and approach is the same.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrangé 2019-08-30 13:22:54 +01:00
parent 17bbdef5cb
commit b2c2a3ae91
4 changed files with 58 additions and 39 deletions

View File

@ -48,7 +48,7 @@ EXTRA_DIST = \
scripts/augeas-gentest.py \
build-aux/check-spacing.pl \
build-aux/header-ifdef.pl \
build-aux/minimize-po.pl \
scripts/minimize-po.py \
build-aux/mock-noinline.pl \
build-aux/prohibit-duplicate-header.pl \
build-aux/syntax-check.mk \

View File

@ -1,37 +0,0 @@
#!/usr/bin/perl
my @block;
my $msgstr = 0;
my $empty = 0;
my $unused = 0;
my $fuzzy = 0;
while (<>) {
if (/^$/) {
if (!$empty && !$unused && !$fuzzy) {
print @block;
}
@block = ();
$msgstr = 0;
$fuzzy = 0;
push @block, $_;
} else {
if (/^msgstr/) {
$msgstr = 1;
$empty = 1;
}
if (/^#.*fuzzy/) {
$fuzzy = 1;
}
if (/^#~ msgstr/) {
$unused = 1;
}
if ($msgstr && /".+"/) {
$empty = 0;
}
push @block, $_;
}
}
if (@block && !$empty && !$unused) {
print @block;
}

View File

@ -58,7 +58,7 @@ update-mini-po: $(POTFILE)
$(MSGMERGE) --no-location --no-fuzzy-matching --sort-output \
$$lang.po $(POTFILE) | \
$(SED) $(SED_PO_FIXUP_ARGS) | \
$(PERL) $(top_srcdir)/build-aux/minimize-po.pl > \
$(RUNUTF8) $(PYTHON) $(top_srcdir)/scripts/minimize-po.py > \
$(srcdir)/$$lang.mini.po ; \
done

56
scripts/minimize-po.py Executable file
View File

@ -0,0 +1,56 @@
#!/usr/bin/env python
#
# Copyright (C) 2018-2019 Red Hat, Inc.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library. If not, see
# <http://www.gnu.org/licenses/>.
from __future__ import print_function
import re
import sys
block = []
msgstr = False
empty = False
unused = False
fuzzy = False
for line in sys.stdin:
if line.isspace():
if not empty and not unused and not fuzzy:
for b in block:
print(b, end='')
block = []
msgstr = False
fuzzy = False
block.append(line)
else:
if line.startswith("msgstr"):
msgstr = True
empty = True
if line[0] == '#' and "fuzzy" in line:
fuzzy = True
if line.startswith("#~ msgstr"):
unused = True
if msgstr and re.search(r'".+"', line):
empty = False
block.append(line)
if not empty and not unused and not fuzzy:
for b in block:
print(b, end='')