Initial ideas around a related-to special property.

* Add `state` on `Issue` to be able to query the state of an issue even
  if you only have a reference to this issue and don't have a reference
  to the context or issues table. This does not change the persisted
  format of the issue. On disk the state of an issue is still
  represented by it's location in the file hierarchy.

* Refactored libpit to use zero_functional instead of sequtils.

nimble.lock

@@ -0,0 +1,174 @@
+{
+  "version": 2,
+  "packages": {
+    "asynctools": {
+      "version": "0.1.1",
+      "vcsRevision": "0e6bdc3ed5bae8c7cc9e03cfbf66b7c882a908a7",
+      "url": "https://github.com/cheatfate/asynctools",
+      "downloadMethod": "git",
+      "dependencies": [],
+      "checksums": {
+        "sha1": "54314dceabb06b20908ecb0f2c007e9ff3aaa054"
+      }
+    },
+    "isaac": {
+      "version": "0.1.3",
+      "vcsRevision": "45a5cbbd54ff59ba3ed94242620c818b9aad1b5b",
+      "url": "https://github.com/pragmagic/isaac/",
+      "downloadMethod": "git",
+      "dependencies": [],
+      "checksums": {
+        "sha1": "05c3583a954715d84b0bf1be97f9a503249e9cdf"
+      }
+    },
+    "uuids": {
+      "version": "0.1.11",
+      "vcsRevision": "8cb8720b567c6bcb261bd1c0f7491bdb5209ad06",
+      "url": "https://github.com/pragmagic/uuids/",
+      "downloadMethod": "git",
+      "dependencies": [
+        "isaac"
+      ],
+      "checksums": {
+        "sha1": "393f5fcefbc8ad3cf167e59760144208ff8f9f76"
+      }
+    },
+    "unicodedb": {
+      "version": "0.11.2",
+      "vcsRevision": "c70f8bc8c7373265670e0575bc5eda36fe3761b0",
+      "url": "https://github.com/nitely/nim-unicodedb",
+      "downloadMethod": "git",
+      "dependencies": [],
+      "checksums": {
+        "sha1": "612c5955f91bd90a263ce914d1d5de74a33af3c6"
+      }
+    },
+    "regex": {
+      "version": "0.20.1",
+      "vcsRevision": "66f144f935cc73977c61185fab15a3147bf117ff",
+      "url": "https://github.com/nitely/nim-regex",
+      "downloadMethod": "git",
+      "dependencies": [
+        "unicodedb"
+      ],
+      "checksums": {
+        "sha1": "ea9b6600443e73b1ea89a477c7a5d1fce742c9da"
+      }
+    },
+    "docopt": {
+      "version": "0.7.0",
+      "vcsRevision": "17803d1205f9e752cce03a66b0a29b710520398e",
+      "url": "https://github.com/docopt/docopt.nim",
+      "downloadMethod": "git",
+      "dependencies": [
+        "regex"
+      ],
+      "checksums": {
+        "sha1": "21150284640b882fa91147181c52da3e5bb44df8"
+      }
+    },
+    "filetype": {
+      "version": "0.9.0",
+      "vcsRevision": "1fe1e7d988cd802abc26505efb5a91891bd6f53e",
+      "url": "https://github.com/jiro4989/filetype",
+      "downloadMethod": "git",
+      "dependencies": [],
+      "checksums": {
+        "sha1": "d2242b94eeb0f6d3810a8c71af4664f28853e1be"
+      }
+    },
+    "zero_functional": {
+      "version": "1.3.0",
+      "vcsRevision": "edf3b7f59119f75706da435c2b7f080a0cf4960c",
+      "url": "https://github.com/zero-functional/zero-functional",
+      "downloadMethod": "git",
+      "dependencies": [],
+      "checksums": {
+        "sha1": "2dc01ca0925ac1c2dcb46a0c6d9c93c57a9cddec"
+      }
+    },
+    "update_nim_package_version": {
+      "version": "0.2.0",
+      "vcsRevision": "5a78579fd7f88014263aed38c60327c85f6f8bcf",
+      "url": "https://git.jdb-software.com/jdb/update-nim-package-version",
+      "downloadMethod": "git",
+      "dependencies": [],
+      "checksums": {
+        "sha1": "37052b7ce30d5493ef24253a82a6087350b4eabb"
+      }
+    },
+    "data_uri": {
+      "version": "1.0.2",
+      "vcsRevision": "f43ac66e44c37edd3cc7282d75d6fa2fa031b2ec",
+      "url": "",
+      "downloadMethod": "git",
+      "dependencies": [
+        "docopt",
+        "filetype",
+        "zero_functional",
+        "update_nim_package_version"
+      ],
+      "checksums": {
+        "sha1": "949c11ffab4e85ff538b0bd3e5bb193f118b56d7"
+      }
+    },
+    "timeutils": {
+      "version": "0.5.4",
+      "vcsRevision": "a9308cbaf3c89496b5832ddd18404dc0debe66a2",
+      "url": "https://git.jdb-software.com/jdb/nim-time-utils.git",
+      "downloadMethod": "git",
+      "dependencies": [],
+      "checksums": {
+        "sha1": "9ecd1020f5644bc59acb2f44ca9d30f4c7f066d3"
+      }
+    },
+    "cliutils": {
+      "version": "0.8.0",
+      "vcsRevision": "b1cc4fbe51d5e617789363efe716793ebe5bc5f1",
+      "url": "https://git.jdb-software.com/jdb/nim-cli-utils",
+      "downloadMethod": "git",
+      "dependencies": [
+        "docopt"
+      ],
+      "checksums": {
+        "sha1": "5b114094c314007fa6f15e62852d62a58a3cbb62"
+      }
+    },
+    "langutils": {
+      "version": "0.4.0",
+      "vcsRevision": "8122660da3fc78132b823e76c9e990fd92802b0e",
+      "url": "https://git.jdb-software.com/jdb/nim-lang-utils.git",
+      "downloadMethod": "git",
+      "dependencies": [],
+      "checksums": {
+        "sha1": "2da09deb0e0bfc186000f0d941d06dd974bf6e58"
+      }
+    },
+    "httpbeast": {
+      "version": "0.4.1",
+      "vcsRevision": "abc13d11c210b614960fe8760e581d44cfb2e3e9",
+      "url": "https://github.com/dom96/httpbeast",
+      "downloadMethod": "git",
+      "dependencies": [
+        "asynctools"
+      ],
+      "checksums": {
+        "sha1": "b23e57a401057dcb9b7fae1fb8279a6a2ce1d0b8"
+      }
+    },
+    "jester": {
+      "version": "0.5.0",
+      "vcsRevision": "a21b36a02b7745d6cdcda32d4ab3fba328cda17a",
+      "url": "https://github.com/dom96/jester/",
+      "downloadMethod": "git",
+      "dependencies": [
+        "httpbeast",
+        "asynctools"
+      ],
+      "checksums": {
+        "sha1": "a192ca25bfc05d5de5c9a5fafca3b0cee47d82d2"
+      }
+    }
+  },
+  "tasks": {}
+}

pit.nimble

@@ -1,6 +1,6 @@
 # Package
 
-version       = "4.22.1"
+version       = "4.24.0"
 author        = "Jonathan Bernard"
 description   = "Personal issue tracker."
 license       = "MIT"
@@ -14,14 +14,15 @@ requires @[
   "nim >= 1.4.0",
   "docopt >= 0.6.8",
   "jester >= 0.5.0",
-  "uuids >= 0.1.10"
+  "uuids >= 0.1.10",
+  "zero_functional"
 ]
 
 # Dependencies from git.jdb-software.com/nim-jdb/packages
 requires @[
-  "cliutils >= 0.6.4",
+  "cliutils >= 0.8.1",
   "langutils >= 0.4.0",
-  "timeutils >= 0.4.0",
+  "timeutils >= 0.5.4",
   "data_uri > 1.0.0",
   "https://git.jdb-software.com/jdb/update-nim-package-version >= 0.2.0"
 ]

src/pit.nim

@@ -1,8 +1,8 @@
 ## Personal Issue Tracker CLI interface
 ## ====================================
 
-import std/algorithm, std/logging, std/options, std/os, std/sequtils,
+import std/[algorithm, logging, options, os, sequtils, wordwrap, tables,
-  std/wordwrap, std/tables, std/terminal, std/times, std/unicode
+            terminal, times, unicode]
 import cliutils, data_uri, docopt, json, timeutils, uuids
 
 from nre import re
@@ -51,7 +51,7 @@ proc getIssueContextDisplayName(ctx: CliContext, context: string): string =
     else: return context.capitalize()
   return ctx.contexts[context]
 
-proc formatIssue(ctx: CliContext, issue: Issue): string =
+proc formatIssue*(issue: Issue): string =
   result = ($issue.id).withColor(fgBlack, true) & "\n"&
            issue.summary.withColor(fgWhite) & "\n"
 
@@ -70,10 +70,9 @@ proc formatIssue(ctx: CliContext, issue: Issue): string =
 
   result &= termReset
 
-proc formatSectionIssue(
+proc formatSectionIssue*(
-    ctx: CliContext,
     issue: Issue,
-    width: int,
+    width: int = 80,
     indent = "",
     verbose = false): string =
 
@@ -135,12 +134,15 @@ proc formatSectionIssue(
 
   result &= termReset
 
-proc formatSectionIssueList(ctx: CliContext, issues: seq[Issue], width: int,
+proc formatSectionIssueList*(
-        indent: string, verbose: bool): string =
+    issues: seq[Issue],
+    width: int = 80,
+    indent: string = "",
+    verbose: bool = false): string =
 
   result = ""
   for i in issues:
-    var issueText = ctx.formatSectionIssue(i, width, indent, verbose)
+    var issueText = formatSectionIssue(i, width, indent, verbose)
     result &= issueText & "\n"
 
 proc formatSection(ctx: CliContext, issues: seq[Issue], state: IssueState,
@@ -161,10 +163,10 @@ proc formatSection(ctx: CliContext, issues: seq[Issue], state: IssueState,
         indent & ctx.getIssueContextDisplayName(context) & ":" &
         termReset & "\n\n"
 
-      result &= ctx.formatSectionIssueList(ctxIssues, innerWidth - 2, indent & "  ", verbose)
+      result &= formatSectionIssueList(ctxIssues, innerWidth - 2, indent & "  ", verbose)
       result &= "\n"
 
-  else: result &= ctx.formatSectionIssueList(issues, innerWidth, indent, verbose)
+  else: result &= formatSectionIssueList(issues, innerWidth, indent, verbose)
 
 proc loadIssues(ctx: CliContext, state: IssueState) =
   ctx.issues[state] = loadIssues(ctx.cfg.tasksDir, state)
@@ -224,7 +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()
@@ -379,7 +381,7 @@ when isMainModule:
 
     ctx.cfg.tasksDir.store(issue, state)
 
-    stdout.writeLine ctx.formatIssue(issue)
+    stdout.writeLine formatIssue(issue)
 
   elif args["reorder"]:
     ctx.reorder(parseEnum[IssueState]($args["<state>"]))
@@ -390,7 +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
@@ -442,9 +444,9 @@ when isMainModule:
         issue["completed"] = getTime().local.formatIso8601
         if issue.hasProp("recurrence") and issue.getRecurrence.isSome:
           let nextIssue = ctx.cfg.tasksDir.nextRecurrence(issue.getRecurrence.get, issue)
-          ctx.cfg.tasksDir.store(nextIssue, Todo)
+          ctx.cfg.tasksDir.store(nextIssue, TodoToday)
           info "created the next recurrence:"
-          stdout.writeLine ctx.formatIssue(nextIssue)
+          stdout.writeLine formatIssue(nextIssue)
 
 
       issue.changeState(ctx.cfg.tasksDir, targetState)
@@ -543,8 +545,12 @@ when isMainModule:
 
     if args["contexts"]: listContexts = true
     elif args["<stateOrId>"]:
-      try: statesOption = some(args["<stateOrId>"].mapIt(parseEnum[IssueState]($it)))
+      try:
-      except: issueIdsOption = some(args["<stateOrId>"].mapIt($it))
+        statesOption =
+          some(args["<stateOrId>"].
+          mapIt(parseEnum[IssueState]($it)))
+      except CatchableError:
+        issueIdsOption = some(args["<stateOrId>"].mapIt($it))
 
     # List the known contexts
     if listContexts:
@@ -567,7 +573,7 @@ when isMainModule:
     elif issueIdsOption.isSome:
       for issueId in issueIdsOption.get:
         let issue = ctx.cfg.tasksDir.loadIssueById(issueId)
-        stdout.writeLine ctx.formatIssue(issue)
+        stdout.writeLine formatIssue(issue)
 
     # List all issues
     else:
@@ -608,7 +614,23 @@ 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()
   quit(QuitFailure)

src/pitpkg/cliconstants.nim

@@ -1,4 +1,4 @@
-const PIT_VERSION* = "4.22.1"
+const PIT_VERSION* = "4.24.0"
 
 const USAGE* = """Usage:
   pit ( new | add) <summary> [<state>] [options]
@@ -14,6 +14,7 @@ const USAGE* = """Usage:
   pit ( delete | rm ) <id>... [options]
   pit add-binary-property <id> <propName> <propSource> [options]
   pit get-binary-property <id> <propName> <propDest> [options]
+  pit show-dupes
   pit help [options]
 
 Options:
@@ -100,7 +101,9 @@ Issue Properties:
     created
 
       If present, expected to be an ISO 8601-formatted date that represents the
-      time when the issue was created.
+      time when the issue was created. E.g.:
+
+          created: 2023-07-13T13:28:41-05:00
 
     completed
 
@@ -109,12 +112,16 @@ Issue Properties:
       property automatically when you use the "done" command, and can filter on
       this value.
 
+          completed: 2023-04-27T11:52:28-05:00
+
     context
 
       Allows issues to be organized into contexts. The -c option is short-hand
       for '-p context:<context-name>' and the 'list contexts' command will show
       all values of 'context' set in existing issues.
 
+          context: family
+
     delegated-to
 
       When an issue now belongs to someone else, but needs to be monitored for
@@ -122,17 +129,23 @@ Issue Properties:
       note how it has been delegated. When present PIT will prepend this value
       to the issue summary with an accent color.
 
+          delegated-to: Bob Ross
+
     hide-until
 
       When present, expected to be an ISO 8601-formatted date and used to
       supress the display of the issue until on or after the given date.
 
+          hide-until: 2024-01-01T13:45:00-05:00
+
     pending
 
       When an issue is blocked by a third party, this property can be used to
       capture details about the dependency When present PIT will display this
       value after the issue summary.
 
+          pending: Results of WCAG analysis.
+
     recurrence
 
       When an issue is moved to the "done" state, if the issue has a valid
@@ -143,7 +156,7 @@ Issue Properties:
       A valid recurrence value has a time value and optionally has an source
       issue ID. For example:
 
-        every 5 days, 10a544
+          recurrence: every 5 days, 10a544
 
       The first word, "every", is expected to be either "every" or "after".
 
@@ -161,15 +174,39 @@ Issue Properties:
 
       Examples:
 
-        every day
+          every day
-        every 2 days
+          every 2 days
-        after 2 days
+          after 2 days
-        every week
+          every week
-        after 12 hours
+          after 12 hours
-        every 2 weeks, 10a544
+          every 2 weeks, 10a544
+
+    relations
+
+      Used to store information about relationships between issues. PIT treats
+      all relations as bi-directional and will update related tickets as
+      necessary to maintain the integrity of the links.
+
+      Relations are captured as <relation-type> <related-issue-id>. Multiple
+      relations can be separated by ",". The <related-issue-id> must be a unique
+      issue ID or ID prefix (in the case of multiple matching issues, the first
+      found will be used with no guarantee on ordering). Valid value pairs for
+      <relation-type> are:
+
+        - child-of / parent-of
+        - related-to (default)
+        - blocks / blocked-by
+        - follows / precedes
+        - caused / caused-by
+
+      Examples:
+
+          relation: child-of fb3e63, blocked-by 2b71c1
+          relation: 2b71c1, 8f2b4c, follows 184dc6
+          relation: relates-to 2b71c1
 
     tags
 
       If present, expected to be a comma-delimited list of text tags. The -g
       option is a short-hand for '-p tags:<tags-value>'.
-"""
+"""

src/pitpkg/private/libpit.nim

@@ -1,8 +1,9 @@
-import std/json, std/logging, std/options, std/os, std/sequtils, std/strformat,
+import std/[json, logging, options, os, strformat, strutils, tables, times]
-  std/strutils, std/tables, std/times
+import cliutils, docopt, langutils, uuids, zero_functional
-import cliutils, docopt, langutils, timeutils, uuids
 
 import nre except toSeq
+import timeutils except `>`
+from sequtils import deduplicate, toSeq
 
 type
   Issue* = ref object
@@ -10,7 +11,9 @@ type
     filepath*: string
     summary*, details*: string
     properties*: TableRef[string, string]
+    relations*: seq[Relation]
     tags*: seq[string]
+    state*: IssueState
 
   IssueState* = enum
     Current = "current",
@@ -38,7 +41,21 @@ type
     interval*: TimeInterval
     isFromCompletion*: bool
 
+  Relation* = tuple[rel: RelationType, id: UUID]
+
+  RelationType* = enum
+    ParentOf = "parent-of",
+    ChildOf = "child-of",
+    RelatedTo = "related-to",
+    Blocks = "blocks",
+    BlockedBy = "blocked-by",
+    Follow = "follows",
+    FollowedBy = "followed-by",
+    Caused = "caused",
+    CausedBy = "caused-by"
+
 const DONE_FOLDER_FORMAT* = "yyyy-MM"
+const ISO8601_MS = "yyyy-MM-dd'T'HH:mm:ss'.'fffzzz"
 
 let ISSUE_FILE_PATTERN = re"[A-Fa-f0-9]{8}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{12}\.txt"
 let RECURRENCE_PATTERN = re"(every|after) ((\d+) )?((hour|day|week|month|year)s?)(, ([0-9a-fA-F]+))?"
@@ -165,11 +182,16 @@ proc parseDate*(d: string): DateTime =
   var errMsg = ""
   for df in DATE_FORMATS:
     try: return d.parse(df)
-    except:
+    except CatchableError:
       errMsg &= "\n\tTried " & df & " with " & d
       continue
   raise newException(ValueError, "Unable to parse input as a date: " & d & errMsg)
 
+proc parseRelation*(relStr: string): Relation =
+  let parts = relStr.split({' '})
+  if parts.len == 1: result = (RelatedTo, parseUUID(parts[0]))
+  else: result = (parseEnum[RelationType](parts[0]), parseUUID(parts[1]))
+
 ## Parse and format issues
 proc fromStorageFormat*(id: string, issueTxt: string): Issue =
   type ParseState = enum ReadingSummary, ReadingProps, ReadingDetails
@@ -177,6 +199,7 @@ proc fromStorageFormat*(id: string, issueTxt: string): Issue =
   result = Issue(
     id: parseUUID(id),
     properties: newTable[string,string](),
+    relations: @[],
     tags: @[])
 
   var parseState = ReadingSummary
@@ -200,13 +223,16 @@ proc fromStorageFormat*(id: string, issueTxt: string): Issue =
         parseState = ReadingDetails
         continue
 
-
+      let parts = line.split({':'}, 1) --> map(it.strip())
-      let parts = line.split({':'}, 1).mapIt(it.strip())
       if parts.len != 2:
         raise newException(ValueError, "unable to parse property line: " & line)
 
-      # Take care of special properties: `tags`
+      # Take care of special properties: `tags` and `relations`
-      if parts[0] == "tags": result.tags = parts[1].split({','}).mapIt(it.strip())
+      if parts[0] == "tags":
+        result.tags = parts[1].split({','}) --> map(it.strip())
+      elif parts[0] == "relations":
+        result.relations = parts[1].split({','}) -->
+          map(parseRelation(it.strip))
       else: result[parts[0]] = parts[1]
 
     of ReadingDetails:
@@ -216,12 +242,22 @@ proc fromStorageFormat*(id: string, issueTxt: string): Issue =
 
 proc toStorageFormat*(issue: Issue, withComments = false): string =
   var lines: seq[string] = @[]
+
   if withComments: lines.add("# Summary (one line):")
   lines.add(issue.summary)
+
   if withComments: lines.add("# Properties (\"key:value\" per line):")
+  issue.properties["last-updated"] = now().format(ISO8601_MS)
   for key, val in issue.properties:
     if not val.isEmptyOrWhitespace: lines.add(key & ": " & val)
+
   if issue.tags.len > 0: lines.add("tags: " & issue.tags.join(","))
+
+  if issue.relations.len > 0:
+    lines.add("relations: " &
+      (issue.relations --> map(it.rel & " " & it.id)).
+      join(', '))
+
   if not isEmptyOrWhitespace(issue.details) or withComments:
     if withComments: lines.add("# Details go below the \"--------\"")
     lines.add("--------")
@@ -234,6 +270,11 @@ proc loadIssue*(filePath: string): Issue =
   result = fromStorageFormat(splitFile(filePath).name, readFile(filePath))
   result.filepath = filePath
 
+  let parentDirName = filePath.splitFile().dir.splitFile().name
+  let issueState = IssueState.items.toSeq --> find($it == parentDirName)
+  if issueState.isSome: result.state = issueState.get
+  else: result.state = IssueState.Done
+
 proc loadIssueById*(tasksDir, id: string): Issue =
   for path in walkDirRec(tasksDir):
     if path.splitFile.name.startsWith(id):
@@ -273,10 +314,10 @@ proc loadIssues*(path: string): seq[Issue] =
 
   let orderedIds =
     if fileExists(orderFile):
-      toSeq(orderFile.lines)
+      (orderFile.lines.toSeq -->
-        .mapIt(it.split(' ')[0])
+        map(it.split(' ')[0]).
-        .deduplicate
+        filter(not it.startsWith("> ") and not it.isEmptyOrWhitespace)).
-        .filterIt(not it.startsWith("> ") and not it.isEmptyOrWhitespace)
+        deduplicate()
     else: newSeq[string]()
 
   type TaggedIssue = tuple[issue: Issue, ordered: bool]
@@ -318,6 +359,7 @@ proc changeState*(issue: Issue, tasksDir: string, newState: IssueState) =
   if newState == Done: issue.setDateTime("completed", getTime().local)
   tasksDir.store(issue, newState)
   if oldFilePath != issue.filepath: removeFile(oldFilepath)
+  issue.state = newState
 
 proc delete*(issue: Issue) = removeFile(issue.filepath)
 
@@ -332,6 +374,7 @@ proc nextRecurrence*(tasksDir: string, rec: Recurrence, defaultIssue: Issue): Is
 
   result = Issue(
     id: genUUID(),
+    state: baseIssue.state,
     summary: baseIssue.summary,
     properties: newProps,
     tags: baseIssue.tags)
@@ -354,36 +397,38 @@ proc nextRecurrence*(tasksDir: string, rec: Recurrence, defaultIssue: Issue): Is
 
 ## Utilities for working with issue collections.
 proc filter*(issues: seq[Issue], filter: IssueFilter): seq[Issue] =
-  result = issues
+  var f: seq[Issue] = issues
 
   for k,v in filter.properties:
-    result = result.filterIt(it.hasProp(k) and it[k] == v)
+    f = f --> filter(it.hasProp(k) and it[k] == v)
 
   for k,v in filter.exclProperties:
-    result = result.filter(proc (iss: Issue): bool =
+    f = f --> filter(not (it.hasProp(k) and v.contains(it[k])))
-      not iss.hasProp(k) or
-      not v.anyIt(it == iss[k])
-    )
 
   if filter.completedRange.isSome:
     let range = filter.completedRange.get
-    result = result.filterIt(
+    f = f --> filter(
              not it.hasProp("completed") or
              it.getDateTime("completed").between(range.b, range.e))
 
   if filter.summaryMatch.isSome:
     let p = filter.summaryMatch.get
-    result = result.filterIt(it.summary.find(p).isSome)
+    f = f --> filter(it.summary.find(p).isSome)
 
   if filter.fullMatch.isSome:
     let p = filter.fullMatch.get
-    result = result.filterIt( it.summary.find(p).isSome or it.details.find(p).isSome)
+    f = f -->
+      filter(it.summary.find(p).isSome or it.details.find(p).isSome)
 
-  for tag in filter.hasTags:
+  for tagLent in filter.hasTags:
-    result = result.filterIt(it.tags.find(tag) >= 0)
+    let tag = tagLent
+    f = f --> filter(it.tags.find(tag) >= 0)
 
-  for exclTag in filter.exclTags:
+  for exclTagLent in filter.exclTags:
-    result = result.filterIt(it.tags.find(exclTag) < 0)
+    let exclTag = exclTagLent
+    f = f --> filter(it.tags.find(exclTag) < 0)
+
+  return f # not using result because zero_functional doesn't play nice with it
 
 proc find*(
     issues: TableRef[IssueState, seq[Issue]],
@@ -395,14 +440,12 @@ proc find*(
 
 ### Configuration utilities
 proc loadConfig*(args: Table[string, Value] = initTable[string, Value]()): PitConfig =
-  let pitrcLocations = @[
+  var pitrcFilename: string
-    if args["--config"]: $args["--config"] else: "",
-    ".pitrc", $getEnv("PITRC"), $getEnv("HOME") & "/.pitrc"]
 
-  var pitrcFilename: string =
+  try:
-    foldl(pitrcLocations, if len(a) > 0: a elif fileExists(b): b else: "")
+    pitrcFilename = findConfigFile(".pitrc",
-
+      if args["--config"]: @[$args["--config"]] else: @[])
-  if not fileExists(pitrcFilename):
+  except ValueError:
     warn "could not find .pitrc file: " & pitrcFilename
     if isEmptyOrWhitespace(pitrcFilename):
       pitrcFilename = $getEnv("HOME") & "/.pitrc"
@@ -410,25 +453,19 @@ proc loadConfig*(args: Table[string, Value] = initTable[string, Value]()): PitCo
     try:
       cfgFile = open(pitrcFilename, fmWrite)
       cfgFile.write("{\"tasksDir\": \"/path/to/tasks\"}")
-    except: warn "could not write default .pitrc to " & pitrcFilename
+    except CatchableError: warn "could not write default .pitrc to " & pitrcFilename
     finally: close(cfgFile)
 
-  var cfgJson: JsonNode
+  debug "loading config from '$#'" % [pitrcFilename]
-  try: cfgJson = parseFile(pitrcFilename)
+  let cfg = initCombinedConfig(pitrcFilename, args)
-  except: raise newException(IOError,
-    "unable to read config file: " & pitrcFilename &
-    "\x0D\x0A" & getCurrentExceptionMsg())
-
-  let cfg = CombinedConfig(docopt: args, json: cfgJson)
 
   result = PitConfig(
     cfg: cfg,
     contexts: newTable[string,string](),
     tasksDir: cfg.getVal("tasks-dir", ""))
 
-  if cfgJson.hasKey("contexts"):
+  for k, v in cfg.getJson("contexts", newJObject()):
-    for k, v in cfgJson["contexts"]:
+    result.contexts[k] = v.getStr()
-      result.contexts[k] = v.getStr()
 
   if isEmptyOrWhitespace(result.tasksDir):
     raise newException(Exception, "no tasks directory configured")