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Add more information about running tests, add syntax highlighting

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There was no information in the README about how to handle multiple
tests for a given extractor. This commit adds an explanation of how this
is handled.

It also adds some syntax highlighting.
This commit is contained in:
Erik Johnson 2014-08-05 00:38:43 -05:00
parent 548f31d99c
commit 1ce464aba9
1 changed files with 75 additions and 44 deletions
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README.md
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@ -303,10 +303,12 @@ # OUTPUT TEMPLATE
In some cases, you don't want special characters such as 中, spaces, or &, such as when transferring the downloaded filename to a Windows system or the filename through an 8bit-unsafe channel. In these cases, add the `--restrict-filenames` flag to get a shorter title:
$ youtube-dl --get-filename -o "%(title)s.%(ext)s" BaW_jenozKc
youtube-dl test video ''_ä↭𝕐.mp4 # All kinds of weird characters
$ youtube-dl --get-filename -o "%(title)s.%(ext)s" BaW_jenozKc --restrict-filenames
youtube-dl_test_video_.mp4 # A simple file name
```bash
$ youtube-dl --get-filename -o "%(title)s.%(ext)s" BaW_jenozKc
youtube-dl test video ''_ä↭𝕐.mp4 # All kinds of weird characters
$ youtube-dl --get-filename -o "%(title)s.%(ext)s" BaW_jenozKc --restrict-filenames
youtube-dl_test_video_.mp4 # A simple file name
```
# VIDEO SELECTION
@ -317,14 +319,16 @@ # VIDEO SELECTION
Examples:
# Download only the videos uploaded in the last 6 months
$ youtube-dl --dateafter now-6months
```bash
# Download only the videos uploaded in the last 6 months
$ youtube-dl --dateafter now-6months
# Download only the videos uploaded on January 1, 1970
$ youtube-dl --date 19700101
# Download only the videos uploaded on January 1, 1970
$ youtube-dl --date 19700101
$ # will only download the videos uploaded in the 200x decade
$ youtube-dl --dateafter 20000101 --datebefore 20091231
$ # will only download the videos uploaded in the 200x decade
$ youtube-dl --dateafter 20000101 --datebefore 20091231
```
# FAQ
@ -399,49 +403,76 @@ ### Adding support for a new site
2. Check out the source code with `git clone git@github.com:YOUR_GITHUB_USERNAME/youtube-dl.git`
3. Start a new git branch with `cd youtube-dl; git checkout -b yourextractor`
4. Start with this simple template and save it to `youtube_dl/extractor/yourextractor.py`:
```python
# coding: utf-8
from __future__ import unicode_literals
# coding: utf-8
from __future__ import unicode_literals
import re
import re
from .common import InfoExtractor
from .common import InfoExtractor
class YourExtractorIE(InfoExtractor):
_VALID_URL = r'https?://(?:www\.)?yourextractor\.com/watch/(?P<id>[0-9]+)'
_TEST = {
'url': 'http://yourextractor.com/watch/42',
'md5': 'TODO: md5 sum of the first 10KiB of the video file',
'info_dict': {
'id': '42',
'ext': 'mp4',
'title': 'Video title goes here',
# TODO more properties, either as:
# * A value
# * MD5 checksum; start the string with md5:
# * A regular expression; start the string with re:
# * Any Python type (for example int or float)
}
class YourExtractorIE(InfoExtractor):
_VALID_URL = r'https?://(?:www\.)?yourextractor\.com/watch/(?P<id>[0-9]+)'
_TEST = {
'url': 'http://yourextractor.com/watch/42',
'md5': 'TODO: md5 sum of the first 10KiB of the video file',
'info_dict': {
'id': '42',
'ext': 'mp4',
'title': 'Video title goes here',
# TODO more properties, either as:
# * A value
# * MD5 checksum; start the string with md5:
# * A regular expression; start the string with re:
# * Any Python type (for example int or float)
}
}
def _real_extract(self, url):
mobj = re.match(self._VALID_URL, url)
video_id = mobj.group('id')
# TODO more code goes here, for example ...
webpage = self._download_webpage(url, video_id)
title = self._html_search_regex(r'<h1>(.*?)</h1>', webpage, 'title')
return {
'id': video_id,
'title': title,
# TODO more properties (see youtube_dl/extractor/common.py)
}
def _real_extract(self, url):
mobj = re.match(self._VALID_URL, url)
video_id = mobj.group('id')
# TODO more code goes here, for example ...
webpage = self._download_webpage(url, video_id)
title = self._html_search_regex(r'<h1>(.*?)</h1>', webpage, 'title')
return {
'id': video_id,
'title': title,
# TODO more properties (see youtube_dl/extractor/common.py)
}
```
5. Add an import in [`youtube_dl/extractor/__init__.py`](https://github.com/rg3/youtube-dl/blob/master/youtube_dl/extractor/__init__.py).
6. Run `python test/test_download.py TestDownload.test_YourExtractor`. This *should fail* at first, but you can continually re-run it until you're done.
* If you decide to add more than one test, then rename the ``_TEST`` variable to ``_TESTS`` and make it into a list of dictionaries, like the example below. The tests will be then respectfully be named `TestDownload.test_YourExtractor`, `TestDownload.test_YourExtractor_1`, `TestDownload.test_YourExtractor_2`, etc.
```python
_TESTS = [
{
'url': 'http://yourextractor.com/watch/42',
'md5': 'TODO: md5 sum of the first 10KiB of the video file',
'info_dict': {
'id': '42',
'ext': 'mp4',
'title': 'Video title goes here',
# TODO more properties, either as:
# * A value
# * MD5 checksum; start the string with md5:
# * A regular expression; start the string with re:
# * Any Python type (for example int or float)
}
},
{
'url': 'http://yourextractor.com/watch/43',
'md5': 'TODO: md5 sum of the first 10KiB of the video file',
'info_dict': {
'id': '43',
'ext': 'mp4',
'title': 'Video title goes here',
}
}
]
```
7. Have a look at [`youtube_dl/common/extractor/common.py`](https://github.com/rg3/youtube-dl/blob/master/youtube_dl/extractor/common.py) for possible helper methods and a [detailed description of what your extractor should return](https://github.com/rg3/youtube-dl/blob/master/youtube_dl/extractor/common.py#L38). Add tests and code for as many as you want.
8. If you can, check the code with [pyflakes](https://pypi.python.org/pypi/pyflakes) (a good idea) and [pep8](https://pypi.python.org/pypi/pep8) (optional, ignore E501).
9. When the tests pass, [add](https://www.kernel.org/pub/software/scm/git/docs/git-add.html) the new files and [commit](https://www.kernel.org/pub/software/scm/git/docs/git-commit.html) them and [push](https://www.kernel.org/pub/software/scm/git/docs/git-push.html) the result, like this: