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-rw-r--r--users/Profpatsch/lib.nix79
1 files changed, 53 insertions, 26 deletions
diff --git a/users/Profpatsch/lib.nix b/users/Profpatsch/lib.nix
index e3d59b7d8beb..879d87755d56 100644
--- a/users/Profpatsch/lib.nix
+++ b/users/Profpatsch/lib.nix
@@ -1,34 +1,49 @@
 { depot, pkgs, ... }:
 let
   bins = depot.nix.getBins pkgs.coreutils [ "printf" "echo" "cat" "printenv" "tee" ]
-      // depot.nix.getBins pkgs.bash [ "bash" ]
-      // depot.nix.getBins pkgs.fdtools [ "multitee" ]
-      ;
+    // depot.nix.getBins pkgs.bash [ "bash" ]
+    // depot.nix.getBins pkgs.fdtools [ "multitee" ]
+  ;
 
   # Print `msg` and and argv to stderr, then execute into argv
-  debugExec = msg: depot.nix.writeExecline "debug-exec" {} [
-    "if" [
-      "fdmove" "-c" "1" "2"
-      "if" [ bins.printf "%s: " msg ]
-      "if" [ bins.echo "$@" ]
+  debugExec = msg: depot.nix.writeExecline "debug-exec" { } [
+    "if"
+    [
+      "fdmove"
+      "-c"
+      "1"
+      "2"
+      "if"
+      [ bins.printf "%s: " msg ]
+      "if"
+      [ bins.echo "$@" ]
     ]
     "$@"
   ];
 
   # Print stdin to stderr and stdout
-  eprint-stdin = depot.nix.writeExecline "eprint-stdin" {} [
-    "pipeline" [ bins.multitee "0-1,2" ] "$@"
+  eprint-stdin = depot.nix.writeExecline "eprint-stdin" { } [
+    "pipeline"
+    [ bins.multitee "0-1,2" ]
+    "$@"
   ];
 
   # Assume the input on stdin is netencode, pretty print it to stderr and forward it to stdout
-  eprint-stdin-netencode = depot.nix.writeExecline "eprint-stdin-netencode" {} [
-    "pipeline" [
+  eprint-stdin-netencode = depot.nix.writeExecline "eprint-stdin-netencode" { } [
+    "pipeline"
+    [
       # move stdout to 3
-      "fdmove" "3" "1"
+      "fdmove"
+      "3"
+      "1"
       # the multitee copies stdin to 1 (the other pipeline end) and 3 (the stdout of the outer pipeline block)
-      "pipeline" [ bins.multitee "0-1,3" ]
+      "pipeline"
+      [ bins.multitee "0-1,3" ]
       # make stderr the stdout of pretty, merging with the stderr of pretty
-      "fdmove" "-c" "1" "2"
+      "fdmove"
+      "-c"
+      "1"
+      "2"
       depot.users.Profpatsch.netencode.pretty
     ]
     "$@"
@@ -36,9 +51,11 @@ let
 
   # print the given environment variable in $1 to stderr, then execute into the rest of argv
   eprintenv = depot.nix.writeExecline "eprintenv" { readNArgs = 1; } [
-    "ifelse" [ "fdmove" "-c" "1" "2" bins.printenv "$1" ]
+    "ifelse"
+    [ "fdmove" "-c" "1" "2" bins.printenv "$1" ]
     [ "$@" ]
-    "if" [ depot.tools.eprintf "eprintenv: could not find \"\${1}\" in the environment\n" ]
+    "if"
+    [ depot.tools.eprintf "eprintenv: could not find \"\${1}\" in the environment\n" ]
     "$@"
   ];
 
@@ -52,24 +69,34 @@ let
   #   stdout: foo\n
   #   stderr: foo\nbar\n
   split-stdin = depot.nix.writeExecline "split-stdin" { argMode = "env"; } [
-    "pipeline" [
+    "pipeline"
+    [
       # this is horrible yes but the quickest way I knew how to implement it
-      "runblock" "1" bins.bash "-c" ''${bins.tee} >("$@")'' "bash-split-stdin"
+      "runblock"
+      "1"
+      bins.bash
+      "-c"
+      ''${bins.tee} >("$@")''
+      "bash-split-stdin"
     ]
-    "runblock" "-r" "1"
+    "runblock"
+    "-r"
+    "1"
   ];
 
   # remove everything but a few selected environment variables
   runInEmptyEnv = keepVars:
     let
-        importas = pkgs.lib.concatMap (var: [ "importas" "-i" var var ]) keepVars;
-        # we have to explicitely call export here, because PATH is probably empty
-        export = pkgs.lib.concatMap (var: [ "${pkgs.execline}/bin/export" var ''''${${var}}'' ]) keepVars;
-    in depot.nix.writeExecline "empty-env" {}
-         (importas ++ [ "emptyenv" ] ++ export ++ [ "${pkgs.execline}/bin/exec" "$@" ]);
+      importas = pkgs.lib.concatMap (var: [ "importas" "-i" var var ]) keepVars;
+      # we have to explicitely call export here, because PATH is probably empty
+      export = pkgs.lib.concatMap (var: [ "${pkgs.execline}/bin/export" var ''''${${var}}'' ]) keepVars;
+    in
+    depot.nix.writeExecline "empty-env" { }
+      (importas ++ [ "emptyenv" ] ++ export ++ [ "${pkgs.execline}/bin/exec" "$@" ]);
 
 
-in {
+in
+{
   inherit
     debugExec
     eprint-stdin