install.sh picks up where left off with env vars

etherpad/install.mk

@@ -0,0 +1,12 @@
+.PHONY: install
+install: $(ETHERPAD_DATA_DIR)
+
+.PHONY: reinstall
+reinstall: $(ETHERPAD_DATA_DIR)
+
+$(ETHERPAD_DATA_DIR):
+	sudo mkdir -p $(ETHERPAD_DATA_DIR)
+
+.PHONY: uninstall
+uninstall:
+	$(info Nothing to do)

install.sh

@@ -1,25 +1,64 @@
 #!/bin/sh
 
+DEPENDENCIES="podman podman-compose yq envsubst bash"
+for dep in ${DEPENDENCIES}
+do
+  if [ -z "$(which ${dep} 2>/dev/null)" ]
+  then
+    echo "Cannot install: missing required dependency ${dep}. Install ${dep}, then try again."
+    exit 1
+  fi
+done
+
 set -e
 
+if [ -z "$(grep "\bjoeac.net\b" /etc/group)" ]
+then
   doas adduser -h /home/joeac.net joeac.net
+fi
 
 cd /home/joeac.net
+if ! [ -d joeac.net/.git ]
+then
   sudo -u joeac.net git clone https://git.joeac.net/joeac.net.git joeac.net
-sudo ln -s /home/joeac.net/joeac.net /usr/local/lib/joeac.net
+fi
 cd joeac.net
 
+if ! [ -h /usr/local/lib/joeac.net ]
+then
+  sudo ln -s /home/joeac.net/joeac.net /usr/local/lib/joeac.net
+fi
+
+if ! [ -f DIGITALOCEAN_TOKEN ]
+then
   if [ -z "${DIGITALOCEAN_TOKEN}" ]
   then
     read -sp "DIGITALOCEAN_TOKEN: " DIGITALOCEAN_TOKEN
   fi
   echo ${DIGITALOCEAN_TOKEN} > DIGITALOCEAN_TOKEN
+fi
+
+if ! ( podman secret exists remote_smtp_password )
+then
+  if [ -z "${REMOTE_SMTP_PASSWORD}" ]
+  then
+    read -sp "REMOTE_SMTP_PASSWORD: " REMOTE_SMTP_PASSWORD
+  fi
+  echo "${REMOTE_SMTP_PASSWORD}" | podman secret create remote_smtp_password -
+  unset REMOTE_SMTP_PASSWORD
+fi
 
 while read line
 do
   if expr "${line}" : "^[[:alnum:]_]\+=" 1>/dev/null
   then
     var_name="$(expr "${line}" "^\([[:alnum:]_]\+\)=")"
+
+    if [ -n "$(grep "^${var_name}=" .env)" ]
+    then
+      continue
+    fi
+
     if [ -z "${!var_name}" ]
     then
       default_value="$(expr "${line}" "^[[:alnum:]_]\+=\(.*\)\$")"
@@ -29,6 +68,7 @@ do
         eval ${var_name}="${default_value}"
       fi
     fi
+
     echo "${var_name}=${!var_name}" >> .env
   fi
 done <example.env