chore(ci): migrate engine size dashboard to pure bash and GH Actions (#…

…5095)

Due to the lack of Nix buy-in from the team and with most of Nix users
leaving, and given the increased overhead of keeping multiple separate
build systems and workflows in sync after the introduction of the
WebAssembly tooling and difficulties in making changes in Nix code for
team members who don't use it, it was previously decided to decrease our
reliance on Nix and stop using it on CI, leaving it as optional and only
for local development, which mostly happened [in
February](#4713). However,
the engines size dashboard was still powered by Nix because we ran out
of the allocated time for the tech debt task.

After the Nix flake was updated last time, the workflow was broken
because `wasm-bindgen-cli` in the flake was at 0.2.95 while we are
currently pinned to 0.2.93 and are blocked from upgrading to a newer
version at the moment. Rather than pinning `wasm-bindgen-cli` to 0.2.93
in the flake by taking it from a different nixpkgs commit, it's a good
opportunity to start using the same infrastructure we use for other
GitHub Actions jobs instead.

With that, and given the fact that our workflows and build scripts are
heavily dependent on rustup and we even used rustup within the dev shell
instead of the toolchain from `rust-overlay`, there's not much benefit
for the local dev shell for Nix users to be a flake, a classic
`shell.nix` is more appropriate: pinning the state of the environment in
`flake.lock` is no longer useful and only gets in the way. As an added
bonus, classic Nix doesn't require copying the sources to the store,
which makes the shell startup a bit faster.

Fixes: prisma/team-orm#1444
Closes: #5072

.editorconfig

@@ -0,0 +1,3 @@
+[*.{yml,yaml}]
+indent_style = space
+indent_size = 2

.envrc

@@ -45,14 +45,11 @@ fi
 # export TEST_CONNECTOR="postgres"
 # export TEST_CONNECTOR_VERSION="10"
 
-# Set up env vars and build inputs from flake.nix automatically for nix users.
+# Set up env vars and build inputs from shell.nix automatically for nix users.
 # If you don't use nix, you can safely ignore this.
 # You can set the DISABLE_NIX environment variable if you're in an environment
 # where nix is pre-installed (e.g. gitpod) but you don't want to use it.
 if command -v nix &> /dev/null && [ -z ${DISABLE_NIX+x} ]
 then
-    if nix flake metadata > /dev/null; then
-        watch_file nix/shell.nix nix/all-engines.nix nix/args.nix
-        use flake
-    fi
+    use nix
 fi

.github/workflows/on-push-to-main.yml

@@ -12,20 +12,68 @@ concurrency:
 jobs:
   publish-to-gh-pages:
     runs-on: ubuntu-latest
-    strategy:
-      fail-fast: true
+
+    env:
+      CSV_PATH: engines-size/data.csv
 
     steps:
       - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@v30
-        with:
-          # we need internet access for the moment
-          extra_nix_config: |
-            sandbox = false
 
-      - run: |
+      - uses: ./.github/workflows/include/rust-wasm-setup
+
+      - name: Build native engines
+        run: |
+          cargo build --release -p query-engine -p query-engine-node-api
+          mv target/release/libquery_engine.{so,node}
+
+      - name: Build WASM engines
+        env:
+          WASM_BUILD_PROFILE: release
+          PKG_DIR: query-engine/query-engine-wasm/pkg
+          TARGET_DIR: target/query-engine-wasm
+        run: |
+          make build-qe-wasm-gz
+          mkdir -p $TARGET_DIR
+
+          for provider in "postgresql" "mysql" "sqlite"; do
+            cp $PKG_DIR/$provider/query_engine_bg.wasm $TARGET_DIR/query-engine-$provider.wasm
+            cp $PKG_DIR/$provider.gz $TARGET_DIR/query-engine-$provider.wasm.gz
+          done
+
+      - name: Check out gh-pages branch
+        run: |
+          git fetch --depth=1 origin gh-pages
+          git checkout origin/gh-pages
+
+      - name: Update engines size
+        run: |
+          files=(
+            target/release/query-engine
+            target/release/libquery_engine.node
+            target/query-engine-wasm/query-engine-postgresql.wasm.gz
+            target/query-engine-wasm/query-engine-postgresql.wasm
+            target/query-engine-wasm/query-engine-mysql.wasm.gz
+            target/query-engine-wasm/query-engine-mysql.wasm
+            target/query-engine-wasm/query-engine-sqlite.wasm.gz
+            target/query-engine-wasm/query-engine-sqlite.wasm
+          )
+
+          DATE_TIME="$(date -u --iso-8601=seconds)"
+
+          if [[ ! -f $CSV_PATH ]]; then
+            echo "date_time,branch,commit,file,size_bytes" > "$CSV_PATH"
+          fi
+
+          for file in "${files[@]}"; do
+            file_name=$(basename "$file")
+            size=$(stat -c %s "$file")
+            echo "$DATE_TIME,$GITHUB_REF_NAME,$GITHUB_SHA,$file_name,$size" >> "$CSV_PATH"
+          done
+
+      - name: Commit the changes
+        run: |
           git config user.email "prismabots@gmail.com"
           git config user.name "prisma-bot"
-
-      - name: Publish engines size to gh-pages branch
-        run: nix run .#publish-engine-size
+          git add "$CSV_PATH"
+          git commit --quiet -m "update engines size for $GITHUB_SHA"
+          git push origin '+HEAD:gh-pages'