From a8e88a1be440042dfcecfd7350b9ac714e095e0e Mon Sep 17 00:00:00 2001
From: qzylinra <qzylinra@users.noreply.github.com>
Date: Wed, 22 Oct 2025 08:41:27 +0800
Subject: [PATCH] buildDartApplication: add workspace-package-config.py

---
 .../hooks/dart-config-hook.sh                 |  3 ++
 .../build-dart-application/hooks/default.nix  |  1 +
 .../workspace-package-config.py               | 42 +++++++++++++++++++
 3 files changed, 46 insertions(+)
 create mode 100644 pkgs/build-support/dart/build-dart-application/workspace-package-config.py

diff --git a/pkgs/build-support/dart/build-dart-application/hooks/dart-config-hook.sh b/pkgs/build-support/dart/build-dart-application/hooks/dart-config-hook.sh
index 56f20a4f63a3..80fef886e122 100644
--- a/pkgs/build-support/dart/build-dart-application/hooks/dart-config-hook.sh
+++ b/pkgs/build-support/dart/build-dart-application/hooks/dart-config-hook.sh
@@ -9,6 +9,9 @@ dartConfigHook() {
     echo "Installing dependencies"
     mkdir -p .dart_tool
     cp "$packageConfig" .dart_tool/package_config.json
+    chmod u+w .dart_tool/package_config.json
+    @python3@ @workspacePackageConfigScript@
+    chmod u-w .dart_tool/package_config.json
     @python3@ @packageGraphScript@ > .dart_tool/package_graph.json
 
     packagePath() {
diff --git a/pkgs/build-support/dart/build-dart-application/hooks/default.nix b/pkgs/build-support/dart/build-dart-application/hooks/default.nix
index 64f1019f882f..a22db27f4d97 100644
--- a/pkgs/build-support/dart/build-dart-application/hooks/default.nix
+++ b/pkgs/build-support/dart/build-dart-application/hooks/default.nix
@@ -14,6 +14,7 @@
     substitutions.jq = "${jq}/bin/jq";
     substitutions.python3 = lib.getExe (python3.withPackages (ps: with ps; [ pyyaml ]));
     substitutions.packageGraphScript = ../../pub2nix/package-graph.py;
+    substitutions.workspacePackageConfigScript = ../workspace-package-config.py;
   } ./dart-config-hook.sh;
   dartBuildHook = makeSetupHook {
     name = "dart-build-hook";
diff --git a/pkgs/build-support/dart/build-dart-application/workspace-package-config.py b/pkgs/build-support/dart/build-dart-application/workspace-package-config.py
new file mode 100644
index 000000000000..7d7d00988f9a
--- /dev/null
+++ b/pkgs/build-support/dart/build-dart-application/workspace-package-config.py
@@ -0,0 +1,42 @@
+import json
+import re
+from pathlib import Path
+
+import yaml
+
+
+def main() -> None:
+    with Path("pubspec.yaml").open("r", encoding="utf-8") as f:
+        pubspec = yaml.load(f, Loader=yaml.CSafeLoader)
+    if not pubspec.get("workspace"):
+        return
+    with Path(".dart_tool/package_config.json").open("r", encoding="utf-8") as f:
+        package_config = json.load(f)
+    for package_path in pubspec.get("workspace", []):
+        with (Path(package_path) / "pubspec.yaml").open("r", encoding="utf-8") as f:
+            package_pubspec = yaml.load(f, Loader=yaml.CSafeLoader)
+        m = re.match(
+            r"^[ \t]*(\^|>=|>)?[ \t]*([0-9]+\.[0-9]+)\.[0-9]+.*$",
+            package_pubspec.get("environment", {}).get("sdk", ""),
+        )
+        if m:
+            languageVersion = m.group(2)
+        elif package_pubspec.get("environment", {}).get("sdk") == "any":
+            languageVersion = "null"
+        else:
+            languageVersion = "2.7"
+        if not any(
+            pkg["name"] == package_pubspec["name"] for pkg in package_config["packages"]
+        ):
+            package_config["packages"].append({
+                "name": package_pubspec["name"],
+                "rootUri": Path(package_path).resolve().as_uri(),
+                "packageUri": "lib/",
+                "languageVersion": languageVersion,
+            })
+    with Path(".dart_tool/package_config.json").open("w", encoding="utf-8") as f:
+        json.dump(package_config, f, sort_keys=True, indent=4)
+
+
+if __name__ == "__main__":
+    main()