feat: start config implementation

src/config.nim

@@ -0,0 +1,39 @@
+import std/[os, parsecfg, sequtils, tables, strutils]
+
+import term
+
+type
+  TsmConfig = object
+    dirs: seq[string]
+    sessions: seq[Session]
+
+  Session = object
+    name, dir: string
+
+proc loadConfigFile(): TsmConfig =
+  let configPath = getHomeDir() / ".config/tsm/config.ini"
+  if configPath.fileExists():
+    let iniTable = loadConfig(configPath)
+    if "sessions" in iniTable:
+      for key, value in iniTable["sessions"].pairs:
+        result.sessions.add Session(name: key, dir: value)
+    if "dirs" in iniTable:
+      for key, value in iniTable["dirs"].pairs:
+        if value != "":
+          termError "[dirs] table should only contain a list of paths"
+        result.dirs.add key
+
+proc loadTsmConfig(): TsmConfig =
+  result = loadConfigFile()
+  let tsmDirs = getEnv("TSM_DIRS")
+  if tsmDirs != "":
+    result.dirs = tsmDirs.split(":")
+
+when isMainModule:
+  let dict = loadConfig(getHomeDir() / ".config/tsm/config.ini")
+  let sections = dict.sections().toSeq()
+  if "sessions" in sections:
+    for key, value in dict["sessions"].pairs:
+      echo key, value
+
+  echo loadTsmConfig()