fix super-linter complaints

.github/workflows/super-linter.yml

@@ -1,5 +1,5 @@
-# This workflow executes several linters on changed files based on languages used in your code base whenever
+# This workflow executes several linters on changed files based on languages
-# you push a code or open a pull request.
+# used in your code base whenever you push a code or open a pull request.
 #
 # You can adjust the behavior by modifying this file.
 # For more information, see:
@@ -8,9 +8,10 @@ name: Lint Code Base
 
 on:
   push:
-    branches: [ "main" ]
+    branches: ["main"]
   pull_request:
-    branches: [ "main" ]
+    branches: ["main"]
+
 jobs:
   run-lint:
     runs-on: ubuntu-latest
@@ -18,10 +19,13 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v3
         with:
-          # Full git history is needed to get a proper list of changed files within `super-linter`
+          # Full git history is needed to get a proper
+          # list of changed files within `super-linter`
           fetch-depth: 0
 
       - name: Lint Code Base
+        # Using the slim image drastically reduces build and runtime, see:
+        # https://github.com/github/super-linter#slim-image
         uses: github/super-linter/slim@v4
         env:
           DEFAULT_BRANCH: "main"

.gitignore

@@ -1,3 +1,5 @@
+*.log
+
 # here be secrets
 *.env*
 !.env.example

init.sh

@@ -75,7 +75,7 @@ as_mastodon() {
 
 # run 'bin/tootctl' as MASTODON_USER in APP_ROOT from anywhere (`tootctl version`)
 tootctl() {
-  ( cd "$APP_ROOT" && as_mastodon RAILS_ENV=production ruby ./bin/tootctl "$@" )
+  (cd "$APP_ROOT" && as_mastodon RAILS_ENV=production ruby ./bin/tootctl "$@")
 }
 
 # ---

scripts/backup.sh

@@ -10,6 +10,7 @@ set -euo pipefail
 echo -e "\n===== backup.sh: started at $(date '+%Y-%m-%d %H:%M:%S') =====\n"
 
 # initialize paths
+# shellcheck disable=SC1091
 . "$(dirname "${BASH_SOURCE[0]}")"/../init.sh
 
 if [ "$(systemctl is-active mastodon-web.service)" = "active" ]; then

scripts/customize.sh

@@ -4,6 +4,7 @@
 set -euo pipefail
 
 # initialize paths
+# shellcheck disable=SC1091
 . "$(dirname "${BASH_SOURCE[0]}")"/../init.sh
 
 # re-detect glitch-soc
@@ -48,7 +49,7 @@ fi
 # ---
 
 # apply a more restrictive robots.txt
-as_mastodon tee "$APP_ROOT/public/robots.txt" > /dev/null <<EOT
+as_mastodon tee "$APP_ROOT/public/robots.txt" >/dev/null <<EOT
 # block everything except About page
 User-agent: *
 Allow: /about

scripts/install.sh

@@ -14,6 +14,7 @@ if [ "$MY_NAME_IS_JAKE_JARVIS" != "pinky promise" ]; then
 fi
 
 # initialize paths (and silence warnings about things not existing yet because that's why we're running the installer.)
+# shellcheck disable=SC1091
 . "$(dirname "${BASH_SOURCE[0]}")"/../init.sh >/dev/null
 
 # check for existing installation
@@ -146,7 +147,10 @@ as_mastodon bundle install --jobs "$(getconf _NPROCESSORS_ONLN)"
 as_mastodon yarn install --pure-lockfile
 
 # set up database w/ random alphanumeric password
-DB_PASSWORD=$(< /dev/urandom tr -dc A-Za-z0-9 | head -c32; echo)
+DB_PASSWORD=$(
+  tr </dev/urandom -dc A-Za-z0-9 | head -c32
+  echo
+)
 echo "CREATE USER $MASTODON_USER WITH PASSWORD '$DB_PASSWORD' CREATEDB" | sudo -u postgres psql -f -
 
 # populate .env.production config
@@ -283,14 +287,17 @@ as_mastodon touch "$LOGS_ROOT"/cron.log
 
 # set cleanup & backup tasks to run weekly
 # https://docs.joinmastodon.org/admin/setup/#cleanup
-(sudo crontab -l; echo -e "\n$INSTALLER_WUZ_HERE
+(
+  sudo crontab -l
+  echo -e "\n$INSTALLER_WUZ_HERE
 @weekly  bash -c \"$UTILS_ROOT/scripts/weekly_cleanup.sh >> $LOGS_ROOT/cron.log 2>&1\"
 @weekly  bash -c \"$UTILS_ROOT/scripts/backup.sh >> $LOGS_ROOT/cron.log 2>&1\"
 
 # automatically renew Let's Encrypt certificates
 # https://certbot.eff.org/instructions?ws=nginx&os=pip
 0 0,12 * * *  root  /opt/certbot/bin/python -c \"import random; import time; time.sleep(random.random() * 3600)\" && certbot renew -q
-") | sudo crontab -
+"
+) | sudo crontab -
 
 echo "🎉 done! don't forget to fill in .env.production with optional credentials"
 echo "https://$MASTODON_DOMAIN/auth/sign_in"

scripts/upgrade.sh

@@ -14,6 +14,7 @@ if [ "$MY_NAME_IS_JAKE_JARVIS" != "pinky promise" ]; then
 fi
 
 # initialize paths
+# shellcheck disable=SC1091
 . "$(dirname "${BASH_SOURCE[0]}")"/../init.sh
 
 # pull latest mastodon source

scripts/version.sh

@@ -4,6 +4,7 @@
 set -euo pipefail
 
 # initialize paths
+# shellcheck disable=SC1091
 . "$(dirname "${BASH_SOURCE[0]}")"/../init.sh
 
 echo "* rbenv:    $(rbenv --version)"

scripts/weekly_cleanup.sh

@@ -10,6 +10,7 @@ set -o pipefail
 echo -e "\n===== weekly_cleanup.sh: started at $(date '+%Y-%m-%d %H:%M:%S') =====\n"
 
 # initialize paths
+# shellcheck disable=SC1091
 . "$(dirname "${BASH_SOURCE[0]}")"/../init.sh
 
 tootctl media remove --days 14