If config_file is unchanged, ask user for them interactively

```
If any defaults in config file have been changed, say so and skip config

while not approved

    Ask user for hostname, smtp config, letsencrypt
    Print values
    ask user if approved

(Trust that if user approves, the values are OK)

Write changes to config_file

Ask user to "Enter or ^C"

```

Most users will be satisfied and press enter to continue normal
bootstrap. Advanced users can ^C, edit config_file and then `./launcher
bootstrap app` with their tweaks.

diff --git a/launcher b/launcher
index e349b7b139fa2fad095ee715c24f9b692b981e23..67dd72b1055ccac883a8f9cd96214f8a9b9ca637 100755 (executable)
--- a/launcher
+++ b/launcher
@@ -473,56 +473,62 @@ scale_ram_and_cpu() {
 
 }
 
-# JP
 set_config() {
-  if [ -f  ~/tmp/debugjp ]
-  then
-      echo "THIS CODE SHOULD NEVER BE COMMITTED!!"
-  fi
+  local skip_config="n"
   if grep -q "DISCOURSE_HOSTNAME: 'discourse.example.com'" $config_file
   then
       local hostname="discourse.example.com"
   else
-    echo "DISCOURSE_HOSTNAME set. Not changing."
+    #echo "DISCOURSE_HOSTNAME modified. Not changing."
+    skip_config="y"
   fi
   if grep -q "DISCOURSE_DEVELOPER_EMAILS: 'me@example.com'" $config_file
   then
       local developer_emails="me@example.com"
   else
-    echo "DISCOURSE_DEVELOPER_EMAILS set. Not changing."
+    #echo "DISCOURSE_DEVELOPER_EMAILS modified. Not changing."
+    skip_config="y"
   fi
   if grep -q "DISCOURSE_SMTP_ADDRESS: smtp.example.com" $config_file
   then
       local smtp_address="smtp.example.com"
   else
-    echo "DISCOURSE_SMTP_ADDRESS set. Not changing."
+    #echo "DISCOURSE_SMTP_ADDRESS modified. Not changing."
+    skip_config="y"
   fi
   if grep -q "#DISCOURSE_SMTP_USER_NAME: user@example.com" $config_file
   then
       local smtp_user_name="user@example.com"
   else
-    echo "SMTP_USER_NAME set. Not changing."
+    #echo "SMTP_USER_NAME modified. Not changing."
+    skip_config="y"
   fi
   if grep -q "#DISCOURSE_SMTP_PASSWORD: pa\$\$word" $config_file
   then
       local smtp_password="pa\$\$word"
   else
-    echo "DISCOURSE_SMTP_PASSWORD set. Not changing."
+    #echo "DISCOURSE_SMTP_PASSWORD modified. Not changing."
+    skip_config="y"
   fi
   if grep -q "#LETSENCRYPT_ACCOUNT_EMAIL:" $config_file
   then
     local letsencrypt_account_email="your.email@example.com"
   else
-    echo "#LETSENCRYPT_ACCOUNT_EMAIL set. Not changing."
+    #echo "#LETSENCRYPT_ACCOUNT_EMAIL modified. Not changing."
+    skip_config="y"
   fi
-  #- "templates/web.ssl.template.yml"
-  #- "templates/web.letsencrypt.ssl.template.yml"
-  #DISCOURSE_CDN_URL: //discourse-cdn.example.com
 
-  local config_ok="n"
+  if [ "$skip_config" == "y" ]
+  then
+      echo "Default values changed in $config_file. Skipping interactive configuration."
+      return
+  fi
   local new_value=""
   local letsencrypt_status="change to enable"
-  while [ $config_ok == "n" ]
+  local config_sane="n"
+  local config_ok="n"
+  local update_ok="y"
+  while [[ "$config_ok" == "n" || "$config_sane" == "n" ]]
   do
     echo "Getting config"
     if [ ! -z $hostname ]
@@ -551,6 +557,15 @@ set_config() {
            smtp_address=$new_value
        fi
     fi
+    if [ "$smtp_address" == "smtp.sparkpostmail.com" ]
+    then
+       smtp_user_name="SMTP_Injection"
+       
+    fi
+    if [ "$smtp_address" == "smtp.sendgrid.net" ]
+    then
+       smtp_user_name="apikey"
+    fi
     if [ ! -z $smtp_user_name ]
     then
        read -p "smtp_user_name [$smtp_user_name]: " new_value
@@ -572,41 +587,138 @@ set_config() {
        read -p "letsencrypt_account_email ($letsencrypt_status) [$letsencrypt_account_email]: " new_value
        if [ ! -z $new_value ]
        then
-           letsencrypt_account_emails=$new_value
-           letsencrypt_status="enabled"
-           echo "Letsencrypt enabled."
+           letsencrypt_account_email=$new_value
+           if [ "$new_value" == "off" ]
+           then
+               letsencrypt_status="change to enable"
+           else
+             letsencrypt_status="Enter 'OFF' to disable."
+             echo "Letsencrypt enabled."
+           fi
        else
          echo "letsencrypt unchanged"
        fi
     fi
 
-    echo -e "\n\nThat's it! Everything is set. How does it look?\n"
+    #TODO sanity check these values.  For now we trust the user's input.
+    config_sane="y"
+
+    if [ "$config_sane" == "y" ]
+    then
+       echo -e "\n\nThat's it! Everything is set. Read carefully before continuing.\n"
+    else
+      echo "Errors found in settings"
+    fi
 
     echo "DISCOURSE_HOSTNAME: $hostname"
     echo "DISCOURSE_DEVELOPER_EMAILS: $developer_emails"
     echo "DISCOURSE_SMTP_ADDRESS: $smtp_address"
     echo "DISCOURSE_SMTP_USER_NAME: $smtp_user_name"
     echo "DISCOURSE_SMTP_PASSWORD: $smtp_password"
-    echo -e "DISCOURSE_SMTP_ENABLE_START_TLS: $smtp_enable_start_tls\c"
-    if [ $letsencrypt_status == "enabled" ]
+    if [ "$letsencrypt_status" == "Enter 'OFF' to disable." ]
     then
-       echo "LETSENCRYPT_ACCOUNT_EMAIL: $letsencrypt_account_emails"
-       echo "LETSENCRYPT enabled."
+       echo "LETSENCRYPT_ACCOUNT_EMAIL: $letsencrypt_account_email"
+       echo "LETSENCRYPT will be enabled."
     else
-      echo "LETSENCRYPT not enabled."
+      echo "LETSENCRYPT will not be enabled."
     fi
     echo 
-    read -p "Enter to continue with these settings, 'N' to edit or ^C to start again:" config_ok
+    read -p "Enter to write these settings to $config_file, 'N' to retry, or ^C to start again: " config_ok
   done
 
-  echo "CONFIG DONE! BUT NOT WRITTEN"
-  echo "THIS CODE SHOULD NEVER BE COMMITTED!!"
+  echo -e "\nWriting changes to $config_file:"
+  sed -i -e "s/^  DISCOURSE_HOSTNAME: 'discourse.example.com'/  DISCOURSE_HOSTNAME: $hostname/w $changelog" $config_file
+  if [ -s $changelog ]
+  then
+      cat $changelog
+      rm $changelog
+  else
+    echo DISCOURSE_HOSTNAME change failed.
+    update_ok="n"  
+  fi
+
+  sed -i -e "s/^  DISCOURSE_DEVELOPER_EMAILS:.*/  DISCOURSE_DEVELOPER_EMAILS: \'$developer_emails\'/w $changelog" $config_file
+  if [ -s $changelog ]
+  then
+      cat $changelog
+      rm $changelog
+  else
+    echo DISCOURSE_DEVELOPER_EMAILS change failed.
+    update_ok="n"  
+  fi
+
+  sed -i -e "s/^  DISCOURSE_SMTP_ADDRESS: smtp.example.com.*/  DISCOURSE_SMTP_ADDRESS: $smtp_address/w $changelog" $config_file
+  if [ -s $changelog ]
+  then
+      cat $changelog
+      rm $changelog
+  else
+    echo DISCOURSE_SMTP_ADDRESS change failed.
+    update_ok="n"  
+  fi
+
+  sed -i -e "s/^  #DISCOURSE_SMTP_USER_NAME: user@example.com.*/  DISCOURSE_SMTP_USER_NAME: $smtp_user_name/w $changelog" $config_file
+  if [ -s $changelog ]
+  then
+      cat $changelog
+      rm $changelog
+  else
+    echo DISCOURSE_SMTP_USER_NAME change failed.
+    update_ok="n"  
+  fi
 
-  if [ -f  ~/tmp/debugjp ]
+  sed -i -e "s/^  #DISCOURSE_SMTP_PASSWORD: pa\$\$word.*/  DISCOURSE_SMTP_PASSWORD: $smtp_password/w $changelog" $config_file
+  if [ -s $changelog ]
   then
-      echo "IF you are reading this you should delete this line and the next one."
-      exit
+      cat $changelog
+      rm $changelog
+  else
+    echo DISCOURSE_SMTP_PASSWORD change failed.
+    update_ok="n"  
   fi
+
+  if [ "$letsencrypt_status" != "change to enable" ]
+  then
+      sed -i -e "s/^  #LETSENCRYPT_ACCOUNT_EMAIL: your.email@example.com/  LETSENCRYPT_ACCOUNT_EMAIL: $letsencrypt_account_email/w $changelog" $config_file
+      if [ -s $changelog ]
+      then
+         cat $changelog
+         rm $changelog
+      else
+       echo LETSENCRYPT_ACCOUNT_EMAIL change failed.
+       update_ok="n"   
+      fi
+      local src='^  #- "templates\/web.ssl.template.yml"'
+      local dst='  \- "templates\/web.ssl.template.yml"'
+      sed -i -e "s/$src/$dst/w $changelog" $config_file
+      if [ -s $changelog ]
+      then
+         echo "  web.ssl.template.yml enabled"
+      else
+       update_ok="n"  
+       echo "  web.ssl.template.yml NOT ENABLED--was it on already?"
+      fi
+      local src='^  #- "templates\/web.letsencrypt.ssl.template.yml"'
+      local dst='  - "templates\/web.letsencrypt.ssl.template.yml"'
+  
+      sed -i -e "s/$src/$dst/w $changelog" $config_file
+      if [ -s $changelog ]
+      then
+         echo "  letsencrypt.ssl.template.yml enabled"
+      else
+       update_ok="n"  
+       echo "letsencrypt.ssl.template.yml NOT ENABLED--was it on already?"
+      fi
+  fi # enable letsencrypt
+
+  if [ "$update_ok" == "y" ]
+  then
+      echo -e "\n$config_file updated successfully."
+  else
+    echo -e "There was an error changing the configuration.\n"
+  fi
+  read -p "Enter to continue or ^C to exit: " config_o
+
 }
 
 run_start() {