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#!/usr/bin/python3
from lintian_brush.fixer import (
report_result,
LintianIssue,
meets_minimum_certainty,
)
import os
def is_empty(path):
verdict = "empty"
with open(path, 'rb') as f:
for lineno, line in enumerate(f.readlines()):
line = line.strip()
if not line:
continue
if lineno == 0 and line.startswith(b"#!"):
continue
if line.startswith(b'#'):
if line.lstrip(b'#') and line.strip() != b'#DEBHELPER#':
verdict = "some-comments"
continue
if line.startswith(b'set '):
continue
if line.startswith(b'exit '):
continue
return "not-empty"
return verdict
MAINTAINER_SCRIPTS = ['prerm', 'postinst', 'preinst', 'postrm']
certainty = "certain"
removed = []
for entry in os.scandir('debian'):
if entry.name in MAINTAINER_SCRIPTS:
script = entry.name
package = "source"
elif '.' not in entry.name:
continue
else:
parts = entry.name.rsplit('.', 1)
if len(parts) != 2:
continue
package = parts[0]
script = parts[1]
if script not in MAINTAINER_SCRIPTS:
continue
verdict = is_empty(entry.path)
if (verdict == "empty"
or (verdict == "some-comments"
and meets_minimum_certainty("likely"))):
if verdict == "some-comments":
certainty = "likely"
issue = LintianIssue(package, 'maintainer-script-empty', script)
if issue.should_fix():
removed.append((package, script))
os.unlink(entry.path)
issue.report_fixed()
report_result(
'Remove empty maintainer scripts: ' +
', '.join('%s (%s)' % x for x in removed),
certainty=certainty)
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