[build] Add homebrew taps (#827)

https://github.com/yt-dlp/homebrew-taps
Closes: #754, #770
Authored by: nao20010128nao

.github/workflows/build.yml

@@ -84,6 +84,19 @@ jobs:
         rm -rf dist/*
         python setup.py sdist bdist_wheel
         twine upload dist/*
+    - name: Install SSH private key
+      if: ${{ secrets.BREW_TOKEN }}
+      uses: webfactory/ssh-agent@v0.5.3
+      with:
+          ssh-private-key: ${{ secrets.BREW_TOKEN }}
+    - name: Update Homebrew Formulae
+      # can't use secrets.GITHUB_TOKEN because it's outside yt-dlp repository
+      if: ${{ secrets.BREW_TOKEN }}
+      run: |
+        git clone git@github.com:yt-dlp/homebrew-taps taps/
+        python3 devscripts/update-formulae.py taps/Formula/yt-dlp.rb "${{ steps.bump_version.outputs.ytdlp_version }}"
+        git -C taps/ commit -am 'yt-dlp: ${{ steps.bump_version.outputs.ytdlp_version }}'
+        git -C taps/ push
 
   build_windows:
     runs-on: windows-latest

README.md

@@ -151,6 +151,7 @@ yt-dlp is not platform specific. So it should work on your Unix box, on Windows
 
 You can install yt-dlp using one of the following methods:
 * Download the binary from the [latest release](https://github.com/yt-dlp/yt-dlp/releases/latest) (recommended method)
+* With Homebrew, `brew install yt-dlp/taps/yt-dlp`
 * Use [PyPI package](https://pypi.org/project/yt-dlp): `python3 -m pip install --upgrade yt-dlp`
 * Use pip+git: `python3 -m pip install --upgrade git+https://github.com/yt-dlp/yt-dlp.git@release`
 * Install master branch: `python3 -m pip install --upgrade git+https://github.com/yt-dlp/yt-dlp`
@@ -174,9 +175,16 @@ sudo aria2c https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp -o
 sudo chmod a+rx /usr/local/bin/yt-dlp
 ```
 
+macOS or Linux users that are using Homebrew (formerly known as Linuxbrew for Linux users) can also install it by:
+
+```
+brew install yt-dlp/taps/yt-dlp
+```
+
 ### UPDATE
 You can use `yt-dlp -U` to update if you are using the provided release.
 If you are using `pip`, simply re-run the same command that was used to install the program.
+If you have installed using Homebrew, run `brew upgrade yt-dlp/taps/yt-dlp`
 
 ### DEPENDENCIES
 Python versions 3.6+ (CPython and PyPy) are supported. Other versions and implementations may or may not work correctly.

devscripts/update-formulae.py

@@ -0,0 +1,37 @@
+#!/usr/bin/env python3
+from __future__ import unicode_literals
+
+import json
+import os
+import re
+import sys
+
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+from yt_dlp.compat import compat_urllib_request
+
+
+# usage: python3 ./devscripts/update-formulae.py <path-to-formulae-rb> <version>
+# version can be either 0-aligned (yt-dlp version) or normalized (PyPl version)
+
+filename, version = sys.argv[1:]
+
+normalized_version = '.'.join(str(int(x)) for x in version.split('.'))
+
+pypi_release = json.loads(compat_urllib_request.urlopen(
+    'https://pypi.org/pypi/yt-dlp/%s/json' % normalized_version
+).read().decode('utf-8'))
+
+tarball_file = next(x for x in pypi_release['urls'] if x['filename'].endswith('.tar.gz'))
+
+sha256sum = tarball_file['digests']['sha256']
+url = tarball_file['url']
+
+with open(filename, 'r') as r:
+    formulae_text = r.read()
+
+formulae_text = re.sub(r'sha256 "[0-9a-f]*?"', 'sha256 "%s"' % sha256sum, formulae_text)
+formulae_text = re.sub(r'url "[^"]*?"', 'url "%s"' % url, formulae_text)
+
+with open(filename, 'w') as w:
+    w.write(formulae_text)