Add script to find orphaned strings that are not referenced in the source code (#6458)

tools/findorphans.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+
+import clang.cindex
+import subprocess
+import sys
+
+index = clang.cindex.Index.create()
+procevents = index.parse('rtengine/procevents.h',args=['-x', 'c++'])
+
+if(1):
+    for chld in procevents.cursor.get_children():
+        if(chld.displayname == 'rtengine'):
+            for c in chld.get_children():
+                if(c.displayname == 'ProcEventCode'):
+                    for pec in c.get_children():
+                        #print(pec.kind, pec.displayname, pec.enum_value)
+                        #print(pec.displayname, file=sys.stderr)
+                        grp1 = subprocess.Popen(('grep', '-ro', '--exclude=procevents.h', '--exclude-dir=.git', pec.displayname), stdout=subprocess.PIPE)
+                        wcr1 = subprocess.check_output(('wc', '-l'), stdin=grp1.stdout)
+                        grp1.wait()
+                        grp2 = subprocess.Popen(('grep', '-ro', '--exclude=procevents.h', '--exclude=refreshmap.cc', '--exclude-dir=.git', pec.displayname), stdout=subprocess.PIPE)
+                        wcr2 = subprocess.check_output(('wc', '-l'), stdin=grp2.stdout)
+                        grp2.wait()
+                        print(pec.enum_value, pec.displayname,int(wcr1), int(wcr2))
+
+with open('rtdata/languages/default', 'r') as deflang:
+    for line in deflang:
+        if(line[0] == '#'):
+            continue
+        if(line[0:2] == '//'):
+            continue
+        if(line[0:2] == '/*'):
+            #our language files support comment blocks?????????????????????????????
+            #or is this commented block bogus?
+            continue
+        if(line[0:2] == '*/'):
+            continue
+        else:
+            stringid = line.split(';')[0]
+            if(stringid.startswith('HISTORY_MSG')):
+               continue
+            #print(stringid, file=sys.stderr)
+            grp1 = subprocess.Popen(('grep', '-ro', '--exclude-dir=languages', '--exclude-dir=.git', stringid), stdout=subprocess.PIPE)
+            wcr1 = subprocess.check_output(('wc', '-l'), stdin=grp1.stdout)
+            grp1.wait()
+            print(stringid, int(wcr1))