add run0 parser test

This is a little suboptimal since it doesn't seem like we can
execute run0 in GHA (at least on a hosted runner).

Author: abathur

CHANGELOG.md

@@ -11,6 +11,7 @@
     - swap lesspipe for wgnord in broken cross test
     - add cross test for writeScript(Bin)
     - drop `bash -n` check from writeScript(Bin) that was breaking cross
+- Add run0 parser (#121)
 
 
 ## v0.10.6 (Jun 21 2025)

nixpkgs/test.nix

@@ -25,6 +25,7 @@
   rlwrap,
   gnutar,
   bc,
+  systemd,
   # override testing
   esh,
   getconf,
@@ -76,6 +77,9 @@ let
     gnutar
     bc
     msmtp
+  ]
+  ++ lib.optionals stdenv.hostPlatform.isLinux [
+    systemd
   ];
 in
 rec {
@@ -221,6 +225,8 @@ rec {
     INTERP = "${bash}/bin/bash";
 
     checkPhase = ''
+      echo removing parse tests matching no${stdenv.buildPlatform.uname.system}
+      rm tests/parse_*no${stdenv.buildPlatform.uname.system}.sh || true # ok if none exist
       patchShebangs .
       mkdir empty_lore
       touch empty_lore/{execers,wrappers}

tests/helpers.bash

@@ -179,7 +179,9 @@ norun(){
 }
 
 parsers() {
-    norun msmtp msmtpq > parsed.sh
+    # msmtp(q) is temporary exclusion to unblock CI
+    # run0, IIUC, just won't work in GHA unless we self-host a systemd runner?
+    norun msmtp msmtpq run0 > parsed.sh
     cat parse_*.sh >> parsed.sh
     resholve --interpreter none --path "${PKG_PARSED}:${PKG_COREUTILS}" < parsed.sh > resolved.sh
     bash -xe resolved.sh

tests/parse_run0_noDarwin.sh

@@ -0,0 +1,47 @@
+run0 \
+	-h --help \
+	-V --version \
+	   --no-ask-password \
+	   --machine=CONTAINER \
+	   --unit=UNIT \
+	   --property=NAME=VALUE \
+	   --description=TEXT \
+	   --slice=SLICE \
+	   --slice-inherit \
+	-u USER --user=USER \
+	-g GROUP --group=GROUP \
+	   --nice=NICE \
+	-D PATH --chdir=PATH \
+	   --setenv=NAME \
+	   --background=COLOR \
+	   --pty \
+	   --pipe \
+	   --shell-prompt-prefix=PREFIX \
+	ls
+
+run0 \
+	-h --help \
+	-V --version \
+	   --no-ask-password \
+	   --machine=CONTAINER \
+	   --unit=UNIT \
+	   --property=NAME=VALUE \
+	   --description=TEXT \
+	   --slice=SLICE \
+	   --slice-inherit \
+	-u USER --user=USER \
+	-g GROUP --group=GROUP \
+	   --nice=NICE \
+	-D PATH --chdir=PATH \
+	   --setenv=NAME \
+	   --background=COLOR \
+	   --pty \
+	   --pipe \
+	   --shell-prompt-prefix=PREFIX \
+	-- \
+	ls
+
+run0 -- run0 -- ls
+run0 run0 ls
+run0
+run0 -u ls ls