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update: use ctime/mtime to control _strip_and_copy_image runs

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Oftentimes, the file that is copied is stripped, in which case, the file
size is different.  Using a file size check here means it will rerun the
strip and copy every time `fdroid update` is run for any image that needs
to be stripped.  If the source's ctime is newer than the destination, then
the process should run since it is a newly created file.  Even more so with
mtime, since the destination's mtime is reset based on the source's.
This commit is contained in:
Hans-Christoph Steiner 2025-06-11 15:47:01 +02:00
parent 3cb6078059
commit 59102fb07f
2 changed files with 65 additions and 10 deletions
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56
tests/test_update.py
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@ -12,6 +12,7 @@ import shutil
import string
import subprocess
import sys
import time
import unittest
import yaml
import zipfile
@ -1369,15 +1370,66 @@ class UpdateTest(unittest.TestCase):
def test_strip_and_copy_image(self):
in_file = basedir / 'metadata/info.guardianproject.urzip/en-US/images/icon.png'
out_file = os.path.join(self.testdir, 'icon.png')
fdroidserver.update._strip_and_copy_image(in_file, out_file)
with self.assertLogs(level=logging.DEBUG):
fdroidserver.update._strip_and_copy_image(in_file, out_file)
self.assertTrue(os.path.exists(out_file))
def test_strip_and_copy_image_bad_filename(self):
in_file = basedir / 'corrupt-featureGraphic.png'
out_file = os.path.join(self.testdir, 'corrupt-featureGraphic.png')
fdroidserver.update._strip_and_copy_image(in_file, out_file)
with self.assertLogs(level=logging.DEBUG):
fdroidserver.update._strip_and_copy_image(in_file, out_file)
self.assertFalse(os.path.exists(out_file))
def test_strip_and_copy_image_unchanged(self):
in_file = basedir / 'metadata/info.guardianproject.urzip/en-US/images/icon.png'
out_file = os.path.join(self.testdir, 'icon.png')
shutil.copy2(in_file, out_file)
ctime = os.path.getctime(out_file)
delta = 0.01
time.sleep(delta) # ensure reliable failure if file isn't preserved
with self.assertLogs(level=logging.DEBUG): # suppress log output
fdroidserver.update._strip_and_copy_image(in_file, out_file)
self.assertAlmostEqual(ctime, os.path.getctime(out_file), delta=delta)
def test_strip_and_copy_image_in_file_ctime_changed(self):
out_file = os.path.join(self.testdir, 'icon.png')
with open(out_file, 'w') as fp:
fp.write('to be replaced')
size = os.path.getsize(out_file)
delta = 0.01
time.sleep(delta) # ensure reliable failure when testing ctime
src_file = basedir / 'metadata/info.guardianproject.urzip/en-US/images/icon.png'
in_file = os.path.join(self.testdir, 'in-icon.png')
shutil.copy(src_file, in_file)
time.sleep(delta) # ensure reliable failure when testing ctime
with self.assertLogs(level=logging.DEBUG): # suppress log output
fdroidserver.update._strip_and_copy_image(in_file, out_file)
self.assertNotEqual(size, os.path.getsize(out_file))
self.assertNotAlmostEqual(
os.path.getctime(in_file), os.path.getctime(out_file), delta=delta
)
# _strip_and_copy_image syncs mtime from in_file to out_file
self.assertAlmostEqual(
os.path.getmtime(in_file), os.path.getmtime(out_file), delta=delta
)
def test_strip_and_copy_image_in_file_mtime_changed(self):
in_file = basedir / 'metadata/info.guardianproject.urzip/en-US/images/icon.png'
out_file = os.path.join(self.testdir, 'icon.png')
shutil.copy(in_file, out_file)
os.utime(out_file, (12345, 12345)) # set atime/mtime to something old
with self.assertLogs(level=logging.DEBUG): # suppress log output
fdroidserver.update._strip_and_copy_image(in_file, out_file)
delta = 0.01
self.assertNotAlmostEqual(
os.path.getctime(in_file), os.path.getctime(out_file), delta=delta
)
# _strip_and_copy_image syncs mtime from in_file to out_file
self.assertAlmostEqual(
os.path.getmtime(in_file), os.path.getmtime(out_file), delta=delta
)
def test_create_metadata_from_template_empty_keys(self):
apk = {'packageName': 'rocks.janicerand'}
with mkdtemp() as tmpdir, TmpCwd(tmpdir):