Revert "actions: use nix2workflow again"

This reverts commit 0cc0ada5d44ade6cab2e9220f7993aaf77985e1b.

2 files changed, 95 insertions, 17 deletions

diff --git a/.github/eval-flake.sh b/.github/eval-flake.sh
new file mode 100755
index 0000000..5bc79c4
--- /dev/null
+++ b/.github/eval-flake.sh
@@ -0,0 +1,85 @@
+#!/usr/bin/env bash
+set -euo pipefail
+### this is inspired by the ci script in [nixpkgs-unfree](https://github.com/numtide/nixpkgs-unfree)
+### link: https://github.com/numtide/nixpkgs-unfree/blob/127b9b18583de04c6207c2a0e674abf64fc4a3b1/ci.sh
+#
+## MIT License
+##
+## Copyright (c) 2022 Jonas Chevalier
+##
+## Permission is hereby granted, free of charge, to any person obtaining a copy
+## of this software and associated documentation files (the "Software"), to deal
+## in the Software without restriction, including without limitation the rights
+## to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+## copies of the Software, and to permit persons to whom the Software is
+## furnished to do so, subject to the following conditions:
+##
+## The above copyright notice and this permission notice shall be included in all
+## copies or substantial portions of the Software.
+##
+## THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+## IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+## FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+## AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+## LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+## OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+## SOFTWARE.
+
+function get_os() {
+    case "$1" in
+        "x86_64-linux") echo "ubuntu-latest" ;;
+        "x86_64-darwin") echo "macos-latest" ;;
+        "aarch64-linux") echo "ubuntu-latst" ;;
+    esac
+}
+
+args=(
+    --check-cache-status
+    --force-recurse
+    --option allow-import-from-derivation true
+    --show-trace
+    --flake
+    '.#hydraJobs'
+)
+
+if [ "${GITHUB_STEP_SUMMARY-}" != "" ]; then
+    log() {
+        echo "$*" >> "$GITHUB_STEP_SUMMARY"
+    }
+else
+    log() {
+        echo "$*"
+    }
+fi
+
+jobs=$(nix-eval-jobs "${args[@]}" | jq -r '. | @base64')
+jq -n '{"include": []}' > matrix.json
+
+had_error=0
+echo "$jobs" | while read -r job; do
+    job=$(echo "$job" | base64 -d)
+    attr=$(echo "$job" | jq -r .attr)
+    echo "## $attr"
+
+    error=$(echo "$job" | jq -r '.error')
+    if [ "$error" == null ]; then
+        log "### ✅ $attr"
+
+        system=$(echo "$job" | jq -r .system)
+        isCached=$(echo "$job" | jq -r .isCached)
+
+        jq ".include += [{\"attr\": \"$attr\", \"os\": \"$(get_os "$system")\", \"isCached\": $isCached}]" < matrix.json > matrix.json.tmp
+        mv matrix.json.tmp matrix.json
+    else
+        log "### ❌ $attr"
+        log
+        log "<details><summary>Evaluation error:</summary><pre>"
+        log "$error"
+        log "</pre></details>"
+        had_error=1
+    fi
+done
+
+echo "matrix=$(jq -r 'tostring' matrix.json)" >> "$GITHUB_OUTPUT"
+rm matrix.json
+exit "$had_error"
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index b1a1b25..58d1966 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -5,7 +5,7 @@ on:
   workflow_call:
     secrets:
       CACHIX_AUTH_TOKEN:
-        description: "auth token for cachi"
+        description: "auth token for cachix"
   workflow_dispatch:
 
 jobs:
@@ -31,7 +31,9 @@ jobs:
       - name: Evaluate jobs
         id: eval
         run: |
-          echo "matrix=$(nix eval --show-trace --json .#workflowMatrix)" >> "$GITHUB_OUTPUT"
+          nix shell --inputs-from . \
+            nixpkgs#{bash,coreutils,jq,nix-eval-jobs} \
+            --command bash ./.github/eval-flake.sh
 
   build:
     needs: eval
@@ -43,9 +45,6 @@ jobs:
     name: Build (${{ matrix.attr }})
     runs-on: ${{ matrix.os }}
 
-    env:
-      JOBS: "hydraJobs"
-
     steps:
       - uses: actions/checkout@v4
 
@@ -59,22 +58,16 @@ jobs:
           authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
 
       - name: Run build
+        if: ${{ !matrix.isCached }}
         run: |
-          for url in "https://cache.nixos.org" "https://getchoo.cachix.org"; do
-            if nix eval --raw .#"$JOBS".${{ matrix.attr }} \
-              | cut -c12-43 \
-              | xargs -I {} curl -f "$url"/{}.narinfo &> /dev/null; then
-              echo ${{ matrix.attr }} is already cached at $url!
-              exit 0
-            fi
-          done
-
-          nix build --print-build-logs --fallback \
-            .#"$JOBS".${{ matrix.attr }}
+          nix build \
+            --accept-flake-config \
+            --print-build-logs \
+            --fallback \
+            .#hydraJobs.${{ matrix.attr }}
 
   check:
     strategy:
-      fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest]