Add preserve_process_environment

README.md

@@ -13,3 +13,8 @@ Do not send messages immediately to the dataspace passed `json_socket_translator
 ## msg
 
 A utility that sends a message to $SYNDICATE_SOCK in the form `<ARGV…>`.
+
+## preserve_process_environment
+
+This utility serializes it's process environment to Preserves and prints it to stdout.
+It can be used to feed the environment variables of a nested child of the Syndicate server back to the server. For example, to retreive the environmental variables that a desktop manager passed on to its children.

src/preserve_process_environment.nim

@@ -0,0 +1,21 @@
+# SPDX-FileCopyrightText: ☭ Emery Hemingway
+# SPDX-License-Identifier: Unlicense
+
+import std/[tables, os]
+import preserves
+
+type ProcessInfo {.preservesDictionary.} = object
+  program: string
+  argv: seq[string]
+  env: Table[string, string]
+  dir: string
+
+proc main =
+  var info: ProcessInfo
+  info.program = getAppFilename()
+  info.argv = commandLineParams()
+  for key, val in envPairs(): info.env[key] = val
+  info.dir = getCurrentDir()
+  writeLine(stdout, info.toPreserve)
+
+main()

syndicate_utils.nimble

@@ -5,7 +5,7 @@ author        = "Emery Hemingway"
 description   = "Utilites for Syndicated Actors and Synit"
 license       = "unlicense"
 srcDir        = "src"
-bin           = @["json_socket_translator", "json_translator", "msg"]
+bin           = @["json_socket_translator", "json_translator", "msg", "preserve_process_environment"]
 
 
 # Dependencies