feat: convert: support multiple JRS versions

src/cli/error.coffee

@@ -257,6 +257,9 @@ assembleError = ( ex ) ->
       msg = printf M2C( @msgs.themeHelperLoad.msg ), ex.glob
       etype = 'error'
 
+    when HMSTATUS.invalidSchemaVersion
+      msg = printf M2C( @msgs.invalidSchemaVersion.msg ), ex.data
+      etype = 'error'
 
   msg: msg              # The error message to display
   withStack: withStack  # Whether to include the stack

src/cli/main.coffee

@@ -84,6 +84,7 @@ main = module.exports = ( rawArgs, exitCallback ) ->
   program
     .command('convert')
     .description('Convert a resume to/from FRESH or JSON RESUME format.')
+    .option('-f --format <fmt>', 'FRESH or JRS format and optional version', undefined)
     .action(->
       x = splitSrcDest.call( this );
       execute.call( this, x.src, x.dst, this.opts(), logMsg)

src/cli/msg.yml

@@ -137,3 +137,5 @@ errors:
       An error occurred while attempting to load the '%s' theme helper. Is the
       theme correctly installed?
     dummy: dontcare
+  invalidSchemaVersion:
+    msg: "'%s' is not recognized as a valid schema version."