feat(segkit): add Nix flake and declare as plugin dependency (#68)

* feat(segkit): add Nix flake for segkit and declare as plugin dependency

Add a flake.nix to segkit/ so it can be installed via Nix as a devbox
package. Both the android and ios plugins now declare segkit as a
package dependency using the GitHub flake reference, ensuring it's
automatically available on PATH for all plugin consumers.

The rewrite-plugin-urls.sh script is extended to rewrite the segkit
GitHub flake ref to a local path ref for CI testing against the current
branch.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix(segkit): use Apache-2.0 license to match repo

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: abueide

plugins/android/plugin.json

@@ -29,6 +29,7 @@
     "REPORTS_DIR": "reports"
   },
   "packages": {
+    "github:segment-integrations/mobile-devtools?dir=segkit&ref=main": "",
     "bash": "latest",
     "coreutils": "latest",
     "gnused": "latest",

plugins/ios/plugin.json

@@ -23,6 +23,7 @@
     "LANG": "en_US.UTF-8"
   },
   "packages": {
+    "github:segment-integrations/mobile-devtools?dir=segkit&ref=main": "",
     "bash": "latest",
     "coreutils": "latest",
     "gnused": "latest",

scripts/dev/rewrite-plugin-urls.sh

@@ -65,6 +65,19 @@ case "$mode" in
       fi
     fi
 
+    # Rewrite segkit package references in plugin.json files
+    segkit_github="github:segment-integrations/mobile-devtools?dir=segkit&ref=main"
+    for plugin_file in plugins/android/plugin.json plugins/ios/plugin.json; do
+      if [ -f "$plugin_file" ] && grep -q "$segkit_github" "$plugin_file"; then
+        echo "    Rewriting segkit ref in: $plugin_file"
+        # Replace the github flake ref with a local path ref
+        jq --arg gh "$segkit_github" '.packages = (.packages | to_entries | map(
+          if .key == $gh then .key = "path:./segkit" else . end
+        ) | from_entries)' "$plugin_file" > "$plugin_file.tmp" \
+          && mv "$plugin_file.tmp" "$plugin_file"
+      fi
+    done
+
     echo "✓ Rewrote plugin URLs to local paths"
     ;;
 
@@ -117,6 +130,18 @@ case "$mode" in
         && mv "plugins/react-native/plugin.json.tmp" "plugins/react-native/plugin.json"
     fi
 
+    # Restore segkit package references in plugin.json files
+    segkit_github="github:segment-integrations/mobile-devtools?dir=segkit&ref=main"
+    for plugin_file in plugins/android/plugin.json plugins/ios/plugin.json; do
+      if [ -f "$plugin_file" ] && grep -q "path:./segkit" "$plugin_file"; then
+        echo "    Restoring segkit ref in: $plugin_file"
+        jq --arg gh "$segkit_github" '.packages = (.packages | to_entries | map(
+          if .key == "path:./segkit" then .key = $gh else . end
+        ) | from_entries)' "$plugin_file" > "$plugin_file.tmp" \
+          && mv "$plugin_file.tmp" "$plugin_file"
+      fi
+    done
+
     echo "✓ Restored plugin URLs to GitHub format"
     ;;
 

segkit/Cargo.toml

@@ -3,7 +3,7 @@ name = "segkit"
 version = "0.1.0"
 edition = "2024"
 description = "Segment SDK developer toolkit"
-license = "MIT"
+license = "Apache-2.0"
 repository = "https://github.com/segment-integrations/mobile-devtools"
 
 [[bin]]

segkit/flake.lock

@@ -0,0 +1,50 @@
+{
+  description = "Segment SDK developer toolkit (segkit CLI)";
+
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+
+  outputs =
+    { self, nixpkgs }:
+    let
+      systems = [
+        "x86_64-linux"
+        "aarch64-linux"
+        "x86_64-darwin"
+        "aarch64-darwin"
+      ];
+
+      forAllSystems =
+        f:
+        builtins.listToAttrs (
+          map (system: {
+            name = system;
+            value = f system;
+          }) systems
+        );
+    in
+    {
+      packages = forAllSystems (
+        system:
+        let
+          pkgs = import nixpkgs { inherit system; };
+        in
+        {
+          default = pkgs.rustPlatform.buildRustPackage {
+            pname = "segkit";
+            version = "0.1.0";
+            src = ./.;
+            cargoLock.lockFile = ./Cargo.lock;
+            doCheck = false;
+
+            meta = {
+              description = "Segment SDK developer toolkit";
+              license = pkgs.lib.licenses.asl20;
+              mainProgram = "segkit";
+            };
+          };
+
+          segkit = self.packages.${system}.default;
+        }
+      );
+    };
+}