Support prebuilt binary on macos

.github/workflows/self-test.yml

@@ -11,7 +11,7 @@ jobs:
   test-setup-latest:
     strategy:
       matrix:
-        platform: [ubuntu-latest, macos-12]
+        platform: [ubuntu-latest, macos-latest]
     runs-on: ${{ matrix.platform }}
     steps:
     - uses: shirok/setup-gauche@main
@@ -21,7 +21,7 @@ jobs:
   test-setup-snapshot:
     strategy:
       matrix:
-        platform: [ubuntu-latest, macos-12]
+        platform: [ubuntu-latest, macos-latest]
     runs-on: ${{ matrix.platform }}
     steps:
     - uses: shirok/setup-gauche@main
@@ -33,7 +33,10 @@ jobs:
       run: gosh -V
 
   test-setup-binary:
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        platform: [ubuntu-latest, macos-latest]
+    runs-on: ${{ matrix.platform }}
     steps:
     - uses: shirok/setup-gauche@main
       with:

doc/Hacking.md

@@ -0,0 +1,7 @@
+# Note for devleopers
+
+- Main processing is done by the shell script `download-and-install-gauche.sh`.
+
+- Pre-build binary tarball is fetched from the repo
+  `https://github.com/practical-scheme/setup-gauche-binary`.  To rebuild
+  the tarball, you have to do it in that repo.

download-and-install-gauche.sh

@@ -7,7 +7,7 @@
 
 # Constants
 get_gauche_url="https://raw.githubusercontent.com/practical-scheme/get-gauche/master/get-gauche.sh"
-binary_url="https://github.com/practical-scheme/setup-gauche-binary/releases/download/v1/gauche-binary-ubuntu-latest.tar.gz"
+binary_url="https://github.com/practical-scheme/setup-gauche-binary/releases/download/v1"
 
 # Arguments
 version=$1
@@ -39,8 +39,18 @@ if [ ! -z "$configure_opts" ]; then
 fi
 
 if [ "$binary" = 'true' ]; then
-    curl -L -f -o /tmp/gauche-binary-ubuntu-latest.tar.gz $binary_url
-    sudo tar x -C / -z -v -f /tmp/gauche-binary-ubuntu-latest.tar.gz
+    platform=`uname -s`
+    case "$platform" in
+        Linux)
+            binary_tarball=gauche-binary-ubuntu-latest.tar.gz ;;
+        Darwin)
+            binary_tarball=gauche-binary-macos-latest.tar.gz ;;
+        *)
+            echo "Prebuilt binary is not available on this platform: $platform"
+            exit 1 ;;
+    esac
+    curl -L -f -o /tmp/$binary_tarball $binary_url/$binary_tarball
+    sudo tar x -C / -z -v -f /tmp/$binary_tarball
 else
     curl -f -o get-gauche.sh $get_gauche_url
     chmod +x get-gauche.sh