Add show-dupes command, fix BareExcept warnings.

src/pit.nim

@@ -226,7 +226,7 @@ proc edit(issue: Issue) =
     # Try to parse the newly-edited issue to make sure it was successful.
     let editedIssue = loadIssue(issue.filepath)
     editedIssue.store()
-  except:
+  except CatchableError:
     fatal "updated issue is invalid (ignoring edits): \n\t" &
       getCurrentExceptionMsg()
     issue.store()
@@ -392,7 +392,7 @@ when isMainModule:
       var stateOption = none(IssueState)
 
       try: stateOption = some(parseEnum[IssueState](editRef))
-      except: discard
+      except CatchableError: discard
 
       if stateOption.isSome:
         let state = stateOption.get
@@ -545,8 +545,12 @@ when isMainModule:
 
     if args["contexts"]: listContexts = true
     elif args["<stateOrId>"]:
-      try: statesOption = some(args["<stateOrId>"].mapIt(parseEnum[IssueState]($it)))
-      except: issueIdsOption = some(args["<stateOrId>"].mapIt($it))
+      try:
+        statesOption =
+          some(args["<stateOrId>"].
+          mapIt(parseEnum[IssueState]($it)))
+      except CatchableError:
+        issueIdsOption = some(args["<stateOrId>"].mapIt($it))
 
     # List the known contexts
     if listContexts:
@@ -610,7 +614,22 @@ when isMainModule:
     try: write(propOut, decodeDataUri(issue[$(args["<propName>"])]))
     finally: close(propOut)
 
- except:
+  elif args["show-dupes"]:
+    ctx.loadAllIssues()
+
+    var idsToPaths = newTable[string, var seq[string]]()
+    for (state, issues) in pairs(ctx.issues):
+      for issue in issues:
+        let issueId = $issue.id
+
+        if idsToPaths.hasKey(issueId): idsToPaths[issueId].add(issue.filepath)
+        else: idsToPaths[issueId] = @[issue.filepath]
+
+    for (issueId, issuePaths) in pairs(idsToPaths):
+      if issuePaths.len < 2: continue
+      stdout.writeLine(issueId & ":\p  " & issuePaths.join("\p  ") & "\p\p")
+
+ except CatchableError:
   fatal getCurrentExceptionMsg()
   debug getCurrentException().getStackTrace()
   #raise getCurrentException()