Re-read plan file if the file has a newer modification date than last time we checked.

daily_notifier.nim

@@ -33,8 +33,6 @@ proc parseDailyPlan(filename: string): seq[PlanItem] =
 
   result = @[]
 
-  if not existsFile(filename): return
-
   var parseState = BeforeHeading
   let planItemRe = re"\s*(\d{4})\s+(.*)"
   const timeFmt = "HHmm"
@@ -103,19 +101,31 @@ proc mainLoop(args: Table[string, Value]): void =
   loadConfig(0)
   signal(SIGHUP, loadConfig)
   var curDay: TimeInfo = getLocalTime(fromSeconds(0))
+  var todaysFile = "nofile"
+  var lastModTime = fromSeconds(0)
   var todaysItems: seq[PlanItem] = @[]
 
   while true:
+
     # Check the date
     let now = getLocalTime(getTime())
-    var today = startOfDay(now)
+    let today = startOfDay(now)
 
-    # Load today's plan items
-    if today != curDay or todaysItems.len == 0:
+    # If we need to change day, look for a new file.
+    if today != curDay:
       curDay = today
-      let todaysPlanFile =
-        cfg.planDir & "/" & today.format(cfg.dateFmt) & "-plan.md"
-      todaysItems = parseDailyPlan(todaysPlanFile)
+      todaysFile = cfg.planDir & "/" & today.format(cfg.dateFmt) & "-plan.md"
+      todaysItems = @[]
+      lastModTime = fromSeconds(0)
+
+    # Check for our plan file.
+    if fileExists(todaysFile):
+      let fileModTime = getLastModificationTime(todaysFile)
+
+      # Check if the file has been modified or we have no itmes
+      if fileModTime > lastModTime or todaysItems.len == 0:
+        lastModTime = fileModTime
+        todaysItems = parseDailyPlan(todaysFile)
 
     # Check to see if any items are happening soon.
     let cutoff = now + seconds(cfg.notificationSecs)