CI: no longer push subrepos (all repos are standalone)

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>

.github/push-subrepos.sh

@@ -1,61 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-cd "$(dirname "${BASH_SOURCE[0]}")"/..
-
-push_subrepo() {
-    local project=$1
-
-    echo "    ----------------------------------------------------------------------------"
-    echo "    | 🚀🐒 Preparing: mach-$project"
-    echo "    ----------------------------------------------------------------------------"
-    cp -R staging-clean staging/
-    cd staging/
-
-    # Rewrite e.g. libs/freetype/ -> freetype/ so we have Git history for that subrepo in one path
-    # only (git subtree cannot follow renames.) For glfw, gpu-dawn, and freetype they were in the
-    # root before being under libs/ and so this is required to generate the proper history.
-    if [[ "$project" == "glfw" ]]; then
-        # glfw has an unfortunately non-linear history, and so we can't preserve commit hashes
-        # or else the subtree push cannot rebuild history properly.
-        git filter-repo --force \
-            --path $project \
-            --path "libs/$project" \
-            --path-rename libs/$project:$project
-    else
-        git filter-repo --force \
-            --preserve-commit-hashes \
-            --path $project \
-            --path "libs/$project" \
-            --path-rename libs/$project:$project
-    fi
-
-    # Push changes to the external subrepo.
-    if [ -n "${GITHUB_ACTIONS:-}" ]; then
-        git remote add -f "mach-$project" "https://slimsag:$ACCESS_TOKEN@github.com/hexops/mach-$project" || true
-    else
-        git remote add -f "mach-$project" "git@github.com:hexops/mach-$project" || true
-    fi
-    git fetch "mach-$project"
-
-    echo "    ----------------------------------------------------------------------------"
-    echo "    | 🚀🐒 Pushing: mach-$project"
-    echo "    ----------------------------------------------------------------------------"
-    git subtree push --prefix "$project" "mach-$project" main
-
-    cd ..
-    rm -rf staging/
-    echo "    ----------------------------------------------------------------------------"
-    echo "    | 🚀🐒 Finished: mach-$project"
-    echo "    ----------------------------------------------------------------------------"
-}
-
-rm -rf staging-clean/ staging/
-git clone https://github.com/hexops/mach staging-clean
-
-push_subrepo 'core'
-push_subrepo 'freetype'
-push_subrepo 'gpu'
-push_subrepo 'gpu-dawn'
-push_subrepo 'sysaudio'
-
-rm -rf staging-clean

.github/workflows/push_subrepos.yml

@@ -1,28 +0,0 @@
-name: Push to subrepositories
-on:
-  push:
-    branches:
-      - "main"
-    path:
-      - "libs/**"
-jobs:
-  push:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-        with:
-          # fetch full Git history, otherwise push-subrepos.sh would fail due to not being able to
-          # split the git subtree.
-          fetch-depth: 0
-      - name: Install git-filter-repo
-        run: python3 -m pip install --user git-filter-repo
-      - name: "Push recent commits to subrepositories"
-        env:
-          ACCESS_TOKEN: ${{ secrets.HEXOPS_MACH_PUSH_SUBREPOS }}
-        run: |
-          git config user.name 'Repository synchronization automation'
-          git config user.email 'stephen@hexops.com'
-          # See https://github.community/t/automating-push-to-public-repo/17742/12
-          git config -l | grep 'http\..*\.extraheader' | cut -d= -f1 | xargs -L1 git config --unset-all
-          ./.github/push-subrepos.sh