Allow including or excluding properties by name only.

src/pit.nim

@@ -19,18 +19,16 @@ proc parsePropertiesOption(propsOpt: string): TableRef[string, string] =
   result = newTable[string, string]()
   for propText in propsOpt.split(";"):
     let pair = propText.split(":", 1)
-    if pair.len == 1: result[pair[0]] = "true"
+    if pair.len == 1: result[pair[0]] = MATCH_ANY
     else: result[pair[0]] = pair[1]
 
+
 proc parseExclPropertiesOption(propsOpt: string): TableRef[string, seq[string]] =
   result = newTable[string, seq[string]]()
   for propText in propsOpt.split(";"):
     let pair = propText.split(":", 1)
-    let val =
-      if pair.len == 1: "true"
-      else: pair[1]
-    if result.hasKey(pair[0]): result[pair[0]].add(val)
-    else: result[pair[0]] = @[val]
+    if not result.hasKey(pair[0]): result[pair[0]] = @[]
+    if pair.len == 2: result[pair[0]].add(pair[1])
 
 
 proc reorder(ctx: CliContext, state: IssueState) =
@@ -39,6 +37,7 @@ proc reorder(ctx: CliContext, state: IssueState) =
   ctx.loadIssues(state)
   discard os.execShellCmd(EDITOR & " '" & (ctx.cfg.tasksDir / $state / "order.txt") & "' </dev/tty >/dev/tty")
 
+
 proc addIssue(
     ctx: CliContext,
     args: Table[string, Value],

src/pit/cliconstants.nim

@@ -33,12 +33,20 @@ Options:
                             a filter to the issues listed, only allowing those
                             which have all of the given properties.
 
+                            If a propert name is provided without a value, this
+                            will allow all issues which have any value defined
+                            for the named property.
+
   -P, --excl-properties <props>
                             When used with the list command, exclude issues
                             that contain properties with the given value. This
                             parameter is formatted the same as the --properties
                             parameter: "key:val;key:val"
 
+                            If no value is provided for a property, this will
+                            filter out all issues with *any* value for that
+                            property.
+
   -c, --context <ctx>       Shorthand for '-p context:<ctx>'
 
   -C, --excl-context <ctx>  Don't show issues from the given context(s).

src/pit/libpit.nim

@@ -57,6 +57,7 @@ type
     isFromCompletion*: bool
 
 
+const MATCH_ANY* = "<match-any>"
 const DONE_FOLDER_FORMAT* = "yyyy-MM"
 const ISO8601_MS = "yyyy-MM-dd'T'HH:mm:ss'.'fffzzz"
 
@@ -429,10 +430,16 @@ proc filter*(issues: seq[Issue], filter: IssueFilter): seq[Issue] =
       it.getDateTime("hide-until") <= now)
 
   for k,v in filter.properties:
-    f = f --> filter(it.hasProp(k) and it[k] == v)
+    if v == MATCH_ANY:
+      f = f --> filter(it.hasProp(k))
+    else:
+      f = f --> filter(it.hasProp(k) and it[k] == v)
 
   for k,v in filter.exclProperties:
-    f = f --> filter(not (it.hasProp(k) and v.contains(it[k])))
+    if v.len == 0:
+      f = f --> filter(not (it.hasProp(k)))
+    else:
+      f = f --> filter(not (it.hasProp(k) and v.contains(it[k])))
 
   if filter.completedRange.isSome:
     let range = filter.completedRange.get