all: CI and misc updates

.github/workflows/ci.yml

@@ -11,8 +11,8 @@ on: [push, workflow_dispatch]
 env:
   DEBIAN_FRONTEND: noninteractive
   UPX_CMAKE_BUILD_FLAGS: --verbose
-  # 2023-06-27
-  ZIG_DIST_VERSION: 0.11.0-dev.3859+88284c124
+  # 2023-06-29
+  ZIG_DIST_VERSION: 0.11.0-dev.3886+0c1bfe271
 
 jobs:
   job-rebuild-and-verify-stubs:
@@ -144,6 +144,7 @@ jobs:
         run: |
           # testsuite needs working "readlink -en" and "sha256sum"
           if ! test -e /usr/local/opt/coreutils/libexec/gnubin/readlink; then
+            echo "===== brew leaves:"; brew leaves; echo "===== brew list:"; brew list
             brew update
             brew install coreutils
           fi

.github/workflows/test-alpine-linux.yml

@@ -58,8 +58,10 @@ jobs:
           name: ${{ env.artifact_name }}
           path: 'upx*/build/*/upx'
 
-  job-alpine-by-hand: # uses shell
-    # and also uses a subdirectory "upx with space" in order to detect possible quoting issues
+  job-alpine-by-hand: # uses a POSIX-compliant shell
+    # ...and also uses a subdirectory "upx with space" in order to detect possible quoting issues
+    # ...and also uses ccache as we are running the same build-script again and again
+    if: ${{ true }}
     strategy: { matrix: { container: ['alpine:3.9','alpine:edge'] } }
     name: ${{ format('gcc by-hand {0}', matrix.container) }}
     runs-on: ubuntu-latest
@@ -67,7 +69,15 @@ jobs:
     steps:
       - name: ${{ format('Install packages {0}', matrix.container) }}
         run: |
-          apk update && apk upgrade && apk add bash dash g++ git mksh zsh
+          # install ccache, g++, git and various POSIX shells
+          shells="bash dash loksh mksh zsh"
+          case ${{ matrix.container }} in
+            *:edge) shells="$shells oksh yash" ;;
+          esac
+          echo "installing shells: $shells"
+          apk update && apk upgrade && apk add ccache g++ git $shells
+          # enable ccache
+          echo -e "CC=ccache gcc\nCXX=ccache g++ -std=gnu++17" >> $GITHUB_ENV
           # this seems to be needed when running in a container (beause of UID mismatch??)
           git config --global --add safe.directory '*'
       - name: 'Check out code'
@@ -77,11 +87,45 @@ jobs:
           path: 'upx with space'
       - name: 'Build by-hand with bash'
         run: 'bash "./upx with space/misc/scripts/build_upx_by_hand.sh"'
+      - name: 'Build by-hand with bash --posix'
+        run: 'bash --posix "./upx with space/misc/scripts/build_upx_by_hand.sh"'
+      - name: 'Build by-hand with busybox ash'
+        run: 'busybox ash "./upx with space/misc/scripts/build_upx_by_hand.sh"'
       - name: 'Build by-hand with busybox sh'
         run: 'busybox sh "./upx with space/misc/scripts/build_upx_by_hand.sh"'
       - name: 'Build by-hand with dash'
         run: 'dash "./upx with space/misc/scripts/build_upx_by_hand.sh"'
+      - name: 'Build by-hand with loksh'
+        run: 'ksh "./upx with space/misc/scripts/build_upx_by_hand.sh"'
+      - name: 'Build by-hand with loksh -o posix'
+        run: 'ksh -o posix "./upx with space/misc/scripts/build_upx_by_hand.sh"'
+      - name: 'Build by-hand with loksh -o sh'
+        run: 'ksh -o sh "./upx with space/misc/scripts/build_upx_by_hand.sh"'
       - name: 'Build by-hand with mksh'
         run: 'mksh "./upx with space/misc/scripts/build_upx_by_hand.sh"'
+      - name: 'Build by-hand with mksh -o posix'
+        run: 'mksh -o posix "./upx with space/misc/scripts/build_upx_by_hand.sh"'
+      - name: 'Build by-hand with mksh -o sh'
+        run: 'mksh -o sh "./upx with space/misc/scripts/build_upx_by_hand.sh"'
+      - name: 'Build by-hand with oksh'
+        if: ${{ contains(matrix.container, ':edge') }}
+        run: 'oksh "./upx with space/misc/scripts/build_upx_by_hand.sh"'
+      - name: 'Build by-hand with oksh -o posix'
+        if: ${{ contains(matrix.container, ':edge') }}
+        run: 'oksh -o posix "./upx with space/misc/scripts/build_upx_by_hand.sh"'
+      - name: 'Build by-hand with oksh -o sh'
+        if: ${{ contains(matrix.container, ':edge') }}
+        run: 'oksh -o sh "./upx with space/misc/scripts/build_upx_by_hand.sh"'
+      - name: 'Build by-hand with yash'
+        if: ${{ contains(matrix.container, ':edge') }}
+        run: 'yash "./upx with space/misc/scripts/build_upx_by_hand.sh"'
       - name: 'Build by-hand with zsh'
         run: 'zsh "./upx with space/misc/scripts/build_upx_by_hand.sh"'
+      - name: 'Build by-hand with zsh --emulate ksh'
+        run: 'zsh --emulate ksh "./upx with space/misc/scripts/build_upx_by_hand.sh"'
+      - name: 'Build by-hand with zsh --emulate sh'
+        run: 'zsh --emulate sh "./upx with space/misc/scripts/build_upx_by_hand.sh"'
+      - name: 'Show ccache stats'
+        run: |
+          ccache -s
+          ccache -p

.github/workflows/weekly-ci-zigcc.yml

@@ -8,8 +8,8 @@ on:
   workflow_dispatch:
 
 env:
-  # 2023-06-27
-  ZIG_DIST_VERSION: 0.11.0-dev.3859+88284c124
+  # 2023-06-29
+  ZIG_DIST_VERSION: 0.11.0-dev.3886+0c1bfe271
 
 jobs:
   job-linux-zigcc: # uses cmake + make