[build] Refactor pyinst.py and misc cleanup

Closes #1361

.github/workflows/build.yml

@@ -8,7 +8,6 @@ on:
 jobs:
   build_unix:
     runs-on: ubuntu-latest
-
     outputs:
       ytdlp_version: ${{ steps.bump_version.outputs.ytdlp_version }}
       upload_url: ${{ steps.create_release.outputs.upload_url }}
@@ -69,6 +68,7 @@ jobs:
     - name: Get SHA2-512SUMS for yt-dlp.tar.gz
       id: sha512_tar
       run: echo "::set-output name=sha512_tar::$(sha512sum yt-dlp.tar.gz | awk '{print $1}')"
+
     - name: Install dependencies for pypi
       env:
         PYPI_TOKEN: ${{ secrets.PYPI_TOKEN }}
@@ -85,6 +85,7 @@ jobs:
         rm -rf dist/*
         python setup.py sdist bdist_wheel
         twine upload dist/*
+
     - name: Install SSH private key
       env:
         BREW_TOKEN: ${{ secrets.BREW_TOKEN }}
@@ -103,6 +104,7 @@ jobs:
         git -C taps/ config user.email github-actions@example.com
         git -C taps/ commit -am 'yt-dlp: ${{ steps.bump_version.outputs.ytdlp_version }}'
         git -C taps/ push
+
     - name: Create Release
       id: create_release
       uses: actions/create-release@v1
@@ -113,7 +115,9 @@ jobs:
         release_name: yt-dlp ${{ steps.bump_version.outputs.ytdlp_version }}
         commitish: ${{ steps.push_update.outputs.head_sha }}
         body: |
-          Changelog:
+          See [this](https://github.com/yt-dlp/yt-dlp#release-files) for a description of the files
+
+          #### Changelog:
           ${{ env.changelog }}
         draft: false
         prerelease: false
@@ -140,7 +144,6 @@ jobs:
   build_macos:
     runs-on: macos-11
     needs: build_unix
-
     outputs:
       sha256_macos: ${{ steps.sha256_macos.outputs.sha256_macos }}
       sha512_macos: ${{ steps.sha512_macos.outputs.sha512_macos }}
@@ -153,17 +156,15 @@ jobs:
     - name: Install Requirements
       run: |
           brew install coreutils
-          /usr/bin/pip3 install --user Pyinstaller mutagen pycryptodomex websockets
+          /usr/bin/python3 -m pip install -U --user pip Pyinstaller mutagen pycryptodomex websockets
     - name: Bump version
       id: bump_version
-      run: python devscripts/update-version.py
-    - name: Print version
-      run: echo "${{ steps.bump_version.outputs.ytdlp_version }}"
+      run: /usr/bin/python3 devscripts/update-version.py
     - name: Build lazy extractors
       id: lazy_extractors
       run: /usr/bin/python3 devscripts/make_lazy_extractors.py yt_dlp/extractor/lazy_extractors.py
     - name: Run PyInstaller Script
-      run: /usr/bin/python3 ./pyinst.py --target-architecture universal2 --onefile
+      run: /usr/bin/python3 pyinst.py --target-architecture universal2 --onefile
     - name: Upload yt-dlp MacOS binary
       id: upload-release-macos
       uses: actions/upload-release-asset@v1
@@ -182,7 +183,7 @@ jobs:
       run: echo "::set-output name=sha512_macos::$(sha512sum dist/yt-dlp_macos | awk '{print $1}')"
 
     - name: Run PyInstaller Script with --onedir
-      run: /usr/bin/python3 ./pyinst.py --target-architecture universal2 --onedir
+      run: /usr/bin/python3 pyinst.py --target-architecture universal2 --onedir
     - uses: papeloto/action-zip@v1
       with:
         files: ./dist/yt-dlp_macos
@@ -207,7 +208,6 @@ jobs:
   build_windows:
     runs-on: windows-latest
     needs: build_unix
-
     outputs:
       sha256_win: ${{ steps.sha256_win.outputs.sha256_win }}
       sha512_win: ${{ steps.sha512_win.outputs.sha512_win }}
@@ -231,8 +231,6 @@ jobs:
     - name: Bump version
       id: bump_version
       run: python devscripts/update-version.py
-    - name: Print version
-      run: echo "${{ steps.bump_version.outputs.ytdlp_version }}"
     - name: Build lazy extractors
       id: lazy_extractors
       run: python devscripts/make_lazy_extractors.py yt_dlp/extractor/lazy_extractors.py
@@ -254,6 +252,7 @@ jobs:
     - name: Get SHA2-512SUMS for yt-dlp.exe
       id: sha512_win
       run: echo "::set-output name=sha512_win::$((Get-FileHash dist\yt-dlp.exe -Algorithm SHA512).Hash.ToLower())"
+
     - name: Run PyInstaller Script with --onedir
       run: python pyinst.py --onedir
     - uses: papeloto/action-zip@v1
@@ -319,8 +318,6 @@ jobs:
     - name: Bump version
       id: bump_version
       run: python devscripts/update-version.py
-    - name: Print version
-      run: echo "${{ steps.bump_version.outputs.ytdlp_version }}"
     - name: Build lazy extractors
       id: lazy_extractors
       run: python devscripts/make_lazy_extractors.py yt_dlp/extractor/lazy_extractors.py
@@ -350,23 +347,23 @@ jobs:
     steps:
     - name: Make SHA2-256SUMS file
       env:
+        SHA256_BIN: ${{ needs.build_unix.outputs.sha256_bin }}
+        SHA256_TAR: ${{ needs.build_unix.outputs.sha256_tar }}
         SHA256_WIN: ${{ needs.build_windows.outputs.sha256_win }}
         SHA256_PY2EXE: ${{ needs.build_windows.outputs.sha256_py2exe }}
         SHA256_WIN_ZIP: ${{ needs.build_windows.outputs.sha256_win_zip }}
         SHA256_WIN32: ${{ needs.build_windows32.outputs.sha256_win32 }}
         SHA256_MACOS: ${{ needs.build_macos.outputs.sha256_macos }}
         SHA256_MACOS_ZIP: ${{ needs.build_macos.outputs.sha256_macos_zip }}
-        SHA256_BIN: ${{ needs.build_unix.outputs.sha256_bin }}
-        SHA256_TAR: ${{ needs.build_unix.outputs.sha256_tar }}
       run: |
+        echo "${{ env.SHA256_BIN }}  yt-dlp" >> SHA2-256SUMS
+        echo "${{ env.SHA256_TAR }}  yt-dlp.tar.gz" >> SHA2-256SUMS
         echo "${{ env.SHA256_WIN }}  yt-dlp.exe" >> SHA2-256SUMS
         echo "${{ env.SHA256_PY2EXE }}  yt-dlp_min.exe" >> SHA2-256SUMS
         echo "${{ env.SHA256_WIN32 }}  yt-dlp_x86.exe" >> SHA2-256SUMS
+        echo "${{ env.SHA256_WIN_ZIP }}  yt-dlp_win.zip" >> SHA2-256SUMS
         echo "${{ env.SHA256_MACOS }}  yt-dlp_macos" >> SHA2-256SUMS
         echo "${{ env.SHA256_MACOS_ZIP }}  yt-dlp_macos.zip" >> SHA2-256SUMS
-        echo "${{ env.SHA256_BIN }}  yt-dlp" >> SHA2-256SUMS
-        echo "${{ env.SHA256_TAR }}  yt-dlp.tar.gz" >> SHA2-256SUMS
-        echo "${{ env.SHA256_WIN_ZIP }}  yt-dlp_win.zip" >> SHA2-256SUMS
     - name: Upload 256SUMS file
       id: upload-sums
       uses: actions/upload-release-asset@v1
@@ -379,23 +376,23 @@ jobs:
         asset_content_type: text/plain
     - name: Make SHA2-512SUMS file
       env:
+        SHA512_BIN: ${{ needs.build_unix.outputs.sha512_bin }}
+        SHA512_TAR: ${{ needs.build_unix.outputs.sha512_tar }}
         SHA512_WIN: ${{ needs.build_windows.outputs.sha512_win }}
         SHA512_PY2EXE: ${{ needs.build_windows.outputs.sha512_py2exe }}
         SHA512_WIN_ZIP: ${{ needs.build_windows.outputs.sha512_win_zip }}
         SHA512_WIN32: ${{ needs.build_windows32.outputs.sha512_win32 }}
         SHA512_MACOS: ${{ needs.build_macos.outputs.sha512_macos }}
         SHA512_MACOS_ZIP: ${{ needs.build_macos.outputs.sha512_macos_zip }}
-        SHA512_BIN: ${{ needs.build_unix.outputs.sha512_bin }}
-        SHA512_TAR: ${{ needs.build_unix.outputs.sha512_tar }}
       run: |
+        echo "${{ env.SHA512_BIN }}  yt-dlp" >> SHA2-512SUMS
+        echo "${{ env.SHA512_TAR }}  yt-dlp.tar.gz" >> SHA2-512SUMS
         echo "${{ env.SHA512_WIN }}  yt-dlp.exe" >> SHA2-512SUMS
+        echo "${{ env.SHA512_WIN_ZIP }}  yt-dlp_win.zip" >> SHA2-512SUMS
         echo "${{ env.SHA512_PY2EXE }}  yt-dlp_min.exe" >> SHA2-512SUMS
         echo "${{ env.SHA512_WIN32 }}  yt-dlp_x86.exe" >> SHA2-512SUMS
         echo "${{ env.SHA512_MACOS }}  yt-dlp_macos" >> SHA2-512SUMS
         echo "${{ env.SHA512_MACOS_ZIP }}  yt-dlp_macos.zip" >> SHA2-512SUMS
-        echo "${{ env.SHA512_BIN }}  yt-dlp" >> SHA2-512SUMS
-        echo "${{ env.SHA512_TAR }}  yt-dlp.tar.gz" >> SHA2-512SUMS
-        echo "${{ env.SHA512_WIN_ZIP }}  yt-dlp_win.zip" >> SHA2-512SUMS
     - name: Upload 512SUMS file
       id: upload-512sums
       uses: actions/upload-release-asset@v1