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[utils] Add replace_extension

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This commit is contained in:
Sergey M․ 2015-05-02 23:23:06 +06:00
parent 666a9a2b95
commit b3ed15b760
2 changed files with 16 additions and 0 deletions
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9
test/test_utils.py
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@ -42,6 +42,7 @@ from youtube_dl.utils import (
sanitize_path,
sanitize_url_path_consecutive_slashes,
prepend_extension,
replace_extension,
shell_quote,
smuggle_url,
str_to_int,
@ -202,6 +203,14 @@ class TestUtil(unittest.TestCase):
self.assertEqual(prepend_extension('.abc', 'temp'), '.abc.temp')
self.assertEqual(prepend_extension('.abc.ext', 'temp'), '.abc.temp.ext')
def test_replace_extension(self):
self.assertEqual(replace_extension('abc.ext', 'temp'), 'abc.temp')
self.assertEqual(replace_extension('abc.ext', 'temp', 'ext'), 'abc.temp')
self.assertEqual(replace_extension('abc.unexpected_ext', 'temp', 'ext'), 'abc.unexpected_ext.temp')
self.assertEqual(replace_extension('abc', 'temp'), 'abc.temp')
self.assertEqual(replace_extension('.abc', 'temp'), '.abc.temp')
self.assertEqual(replace_extension('.abc.ext', 'temp'), '.abc.temp')
def test_ordered_set(self):
self.assertEqual(orderedSet([1, 1, 2, 3, 4, 4, 5, 6, 7, 3, 5]), [1, 2, 3, 4, 5, 6, 7])
self.assertEqual(orderedSet([]), [])

7
youtube_dl/utils.py
View file

@ -1357,6 +1357,13 @@ def prepend_extension(filename, ext, expected_real_ext=None):
else '{0}.{1}'.format(filename, ext))
def replace_extension(filename, ext, expected_real_ext=None):
name, real_ext = os.path.splitext(filename)
return '{0}.{1}'.format(
name if not expected_real_ext or real_ext[1:] == expected_real_ext else filename,
ext)
def check_executable(exe, args=[]):
""" Checks if the given binary is installed somewhere in PATH, and returns its name.
args can be a list of arguments for a short output (like -version) """