Refactor script with functions

renew_cert.sh

@@ -4,8 +4,8 @@ path="$( cd "$(dirname "$0")" ; pwd -P )"
 
 #############
 # variables
-acme_dir=/srv/certs/acme-challenge/.well-known/acme-challenge
-opt_dir=/srv/certs/.opt
+acme_dir=/docker/certs/acme-challenge/.well-known/acme-challenge
+opt_dir=/docker/certs/.opt
 account_key=$opt_dir/account.key
 acme_tiny=$opt_dir/acme_tiny.py
 openssl_conf=$opt_dir/openssl.conf
@@ -14,6 +14,7 @@ openssl_conf=$opt_dir/openssl.conf
 # script
 
 
+main() {
   # stop script if receive SIGINT (ctrl-c)
   trap "exit" INT
   
@@ -57,22 +58,34 @@ acme_dir=${acme_dir%/}
   opt_dir=${opt_dir%/}
   
   # check if python is installed
-command -v python >/dev/null 2>&1 || { echo >&2 "I require python but it's not installed.  Aborting."; exit 1; }
+  command -v python >/dev/null 2>&1 || { echo >&2 "Python is required but it's not installed.  Aborting."; exit 1; }
   
   counter=0
 
   for arg in "$@"
   do
+    process_renewal
+  
+    if [ $? == 0 ]; then
+      echo "Certificate successfully created!"
+      counter=$((counter+1))
+    fi
+  done
+  
+  echo "$counter new certificates created!"
+}
+
+process_renewal() (
     arg="$path/${arg%/}"
   
     if [ ! -d "$arg" ]; then
       echo "Folder $arg doesn't exists!"
-    continue
+      return 1
     fi
   
     if [ ! -s "$arg/domain.conf" ]; then
       echo "Configuration file doen't exists!"
-    continue
+      return 1
     fi
   
     # load configuration variables
@@ -82,12 +95,13 @@ do
     # check domain.conf variables
     if [ -z "$NAME" ]; then
       echo "No name given for domain \"$arg\"".
-    continue
+      return 1
     fi
+    echo "Processing certificate \"$NAME\"..."
   
     if [ ${#DOMAINS[@]} -eq 0 ]; then
       echo "No domains given for \"$NAME\"."
-    continue
+      return 1
     fi
   
   
@@ -119,7 +133,7 @@ do
   
     if [ $? != 0 ]; then
       echo "Creating csr/key files FAILED for \"$NAME\"!"
-    continue
+      return 1
     fi
   
     # get certificate
@@ -128,7 +142,7 @@ do
     if [ $? != 0 ]; then
       rm -rf $arg/tmp.pem
       echo "Getting certificate for \"$NAME\" FAILED!"
-    continue
+      return 1
     fi
   
     if [ -s "$arg/tmp.pem" ]; then
@@ -136,12 +150,10 @@ do
     else
       echo "New certificate for \"$NAME\" doesn't exists or is empty"
       rm -rf "$arg/tmp.pem"
-    continue
+      return 1
     fi
 
-  echo "Certificate for \"$NAME\" successfully created!"
-  counter=$((counter+1))
+    return 0
+)
 
-done
-
-echo "$counter new certificates created!"
+main "$@"; exit