merge-after-ci: rewrite according to #814

pkgs/merge-after-ci/default.nix

@@ -1,26 +1,33 @@
-{ writeShellApplication
+{ bash
+, callPackage
 , coreutils
-, bash
 , git
-, tea
+, lib
+, nix
 , openssh
+, tea
 , tea-create-pr
 , ...
 }:
-writeShellApplication {
-  name = "merge-after-ci";
-  runtimeInputs = [
-    bash
-    coreutils
-    git
-    tea
-    openssh
-    tea-create-pr
+let
+  writers = callPackage ../builders/script-writers.nix { };
+in
+writers.writePython3Bin "merge-after-ci"
+{
+  makeWrapperArgs = [
+    "--prefix"
+    "PATH"
+    ":"
+    (lib.makeBinPath [
+      bash
+      coreutils
+      git
+      nix
+      openssh
+      tea
+      tea-create-pr
+    ])
   ];
-  text = ''
-    remoteName="''${1:-origin}"
-    targetBranch="''${2:-main}"
-    shift && shift
-    tea-create-pr "$remoteName" "$targetBranch" --assignees clan-bot "$@"
-  '';
 }
+  ./merge-after-ci.py
+

pkgs/merge-after-ci/merge-after-ci.py

@@ -0,0 +1,24 @@
+import argparse
+import subprocess
+
+parser = argparse.ArgumentParser()
+parser.add_argument("--reviewers", nargs="*")
+parser.add_argument("--no-review", action="store_true")
+parser.add_argument("args", nargs="*")
+args = parser.parse_args()
+
+# complain if neither --reviewers nor --no-review is given
+if not args.reviewers and not args.no_review:
+    parser.error("either --reviewers or --no-review must be given")
+
+subprocess.run(
+    [
+        "tea-create-pr",
+        "origin",
+        "main",
+        "--assignees",
+        "clan-bot",
+        *([*args.reviewers] if args.reviewers else []),
+        *args.args,
+    ]
+)