Add AppImage to build workflow

setup.py

@@ -42,7 +42,7 @@ OS_DARWIN = 3
 #  Utilities
 # =============================================================================================== #
 
-def extractVersion():
+def extractVersion(beQuiet=False):
     """Extract the novelWriter version number without having to import
     anything else from the main package.
     """
@@ -67,7 +67,8 @@ def extractVersion():
         print("Could not read file: %s" % initFile)
         print(str(exc))
 
-    print("novelWriter version: %s (%s) at %s" % (numVers, hexVers, relDate))
+    if not beQuiet:
+        print("novelWriter version: %s (%s) at %s" % (numVers, hexVers, relDate))
 
     return numVers, hexVers, relDate
 
@@ -935,7 +936,7 @@ def makeForLaunchpad(doSign=False, isFirst=False, isSnapshot=False):
 ##
 
 def makeAppImage(sysArgs):
-    """Build an Appimage
+    """Build an Appimage.
     """
     import glob
     import argparse
@@ -1882,6 +1883,7 @@ if __name__ == "__main__":
         "",
         "    help           Print the help message.",
         "    pip            Install all package dependencies for novelWriter using pip.",
+        "    version        Print the novelWriter version.",
         "    build-clean    Will attempt to delete 'build' and 'dist' folders.",
         "",
         "Additional Builds:",
@@ -1939,8 +1941,8 @@ if __name__ == "__main__":
 
     if "version" in sys.argv:
         sys.argv.remove("version")
-        print("Checking source version info ...")
-        extractVersion()
+        numVers, _, _ = extractVersion(beQuiet=True)
+        print(numVers, end=None)
         sys.exit(0)
 
     if "pip" in sys.argv: