add more ci workflows

We want to verify python/shell syntax and format.
Signed-off-by: Christian Rebischke <chris@nullday.de>

.github/workflows/main.yml

@@ -4,14 +4,56 @@ on: [push, pull_request]
 
 jobs:
   vagrant-validation:
-
     runs-on: ubuntu-latest
 
     steps:
     - uses: actions/checkout@v1
     - name: install packer
-      run:
-        ./generic-ci.sh install
-    - name: verify packer configuration
-      run:
-        ./generic-ci.sh verify
+      run: ./generic-ci.sh install-packer
+
+    - name: verify local.json
+      run: ./generic-ci.sh verify-local
+
+    - name: verify vagrant.json
+      run: ./generic-ci.sh verify-official
+
+  python-syntax-validation:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: install flake8
+      run: ./generic-ci.sh install-flake8
+
+    - name: run flake8 checks
+      run: ./generic-ci.sh flake8
+
+  python-format-validation:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: install yapf
+      run: ./generic-ci.sh install-yapf
+
+    - name: run yapf checks
+      run: ./generic-ci.sh yapf
+
+  shell-syntax-validation:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: run shellcheck
+      run: ./generic-ci.sh shellcheck
+
+  shell-format-validation:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: install-shfmt
+      run: ./generic-ci.sh install-shfmt
+
+    - name: run shfmt checks
+      run: ./generic-ci.sh shfmt

generic-ci.sh

@@ -3,7 +3,7 @@ set -x
 
 case $1 in
 
-  install)
+  install-packer)
     PACKER_CURRENT_VERSION="$(curl -s https://checkpoint-api.hashicorp.com/v1/check/packer | jq -r -M '.current_version')"
     PACKER_URL="https://releases.hashicorp.com/packer/$PACKER_CURRENT_VERSION/packer_${PACKER_CURRENT_VERSION}_linux_amd64.zip"
     PACKER_SHA256="https://releases.hashicorp.com/packer/$PACKER_CURRENT_VERSION/packer_${PACKER_CURRENT_VERSION}_SHA256SUMS"
@@ -20,13 +20,48 @@ case $1 in
     grep linux_amd64 "packer_${PACKER_CURRENT_VERSION}_SHA256SUMS" > packer_SHA256SUM_linux_amd64
     sha256sum --check --status packer_SHA256SUM_linux_amd64
     unzip "packer_${PACKER_CURRENT_VERSION}_linux_amd64.zip"
+    ./packer --version
     ;;
 
-  verify)
-    ./packer --version
+  install-shfmt)
+    curl -L https://github.com/mvdan/sh/releases/download/v2.6.4/shfmt_v2.6.4_linux_amd64 -o shfmt
+    chmod +x ./shfmt
+    ;;
+
+  install-yapf)
+    pip3 install yapf --user
+    ;;
+
+  install-flake8)
+    pip3 install flake8 --user
+    ;;
+
+  verify-official)
     jq ".\"post-processors\"[0] |= map(select(.\"type\" != \"vagrant-cloud\"))" vagrant.json | ./packer validate -var "iso_url=https://downloads.archlinux.de/iso/$(date +'%Y.%m').01/archlinux-$(date +'%Y.%m').01-x86_64.iso" -var "iso_checksum_url=https://downloads.archlinux.de/iso/$(date +'%Y.%m').01/sha1sums.txt" -
     ;;
 
+  verify-local)
+    jq ".\"post-processors\"[0] |= map(select(.\"type\" != \"vagrant-cloud\"))" local.json | ./packer validate -var "iso_url=https://downloads.archlinux.de/iso/$(date +'%Y.%m').01/archlinux-$(date +'%Y.%m').01-x86_64.iso" -var "iso_checksum_url=https://downloads.archlinux.de/iso/$(date +'%Y.%m').01/sha1sums.txt" -
+    ;;
+
+  # We use + instead of \; here because find doesn't pass
+  # the exit code through when used with \;
+  shellcheck)
+    find . -iname "*.sh" -exec shellcheck {} +
+    ;;
+
+  shfmt)
+    find . -iname "*.sh" -exec ./shfmt -i 2 -ci -d {} +
+    ;;
+
+  yapf)
+    find . -iname "*.py" -exec python3 -m yapf -d {} +
+    ;;
+
+  flake8)
+    find . -iname "*.py" -exec python3 -m flake8 {} +
+    ;;
+
   *)
     exit 1
     ;;