add native toolchain support (#79)

Author: m-Bilal

changelog.md

@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+- Add native toolchain support [#79](https://github.com/hasura/ndc-open-api-lambda/pull/79)
+
 ## [[1.3.0](https://github.com/hasura/ndc-open-api-lambda/releases/tag/v1.3.0)] 2025-01-22
 
 - Extend `@save` annotation support for user defined type (types, interfaces, classes) ([#71](https://github.com/hasura/ndc-open-api-lambda/pull/71))

connector-definition/.hasura-connector/check-reqs.ps1

@@ -0,0 +1,27 @@
+$ErrorActionPreference = "Stop"
+
+$minimumNodeVersion = 20
+
+if (-not (Get-Command "node" -ErrorAction SilentlyContinue)) {
+  Write-Host "node could not be found. Please install NodeJS v$minimumNodeVersion+."
+  exit 1
+}
+
+$nodeVersion = & node --version
+if ($nodeVersion -match "^v(\d+)\.") {
+  $majorVersion = $Matches[1]
+  if ($majorVersion -lt $minimumNodeVersion) {
+    Write-Host "Detected Node.js version $nodeVersion on the PATH. The minimum required version is v$minimumNodeVersion."
+    exit 1
+  }
+}
+
+Push-Location $env:HASURA_PLUGIN_CONNECTOR_CONTEXT_PATH
+try {
+  if ((Test-Path "./node_modules") -eq $false) {
+    Write-Host "node_modules not found, please ensure you have run 'npm install'."
+    exit 1
+  }
+} finally {
+  Pop-Location
+}

connector-definition/.hasura-connector/check-reqs.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+set -eu -o pipefail
+
+minimum_node_version="20"
+
+if ! command -v node &> /dev/null
+then
+  echo "node could not be found on the PATH. Please install Node.js v$minimum_node_version+."
+  exit 1
+fi
+
+node_version=$(node --version)
+if [[ "$node_version" =~ ^v([[:digit:]]+)\. ]]; then
+  major_version="${BASH_REMATCH[1]}"
+  if [[ $major_version -lt $minimum_node_version ]]; then
+    echo "Detected Node.js version $node_version on the PATH. The minimum required version is v$minimum_node_version."
+    exit 1
+  fi
+else
+  echo "no match"
+fi
+
+cd $HASURA_PLUGIN_CONNECTOR_CONTEXT_PATH
+
+if [ ! -d "node_modules" ]
+then
+  echo "node_modules directory not found, please ensure you have run 'npm install'."
+  exit 1
+fi

connector-definition/.hasura-connector/connector-metadata.yaml

@@ -32,3 +32,22 @@ dockerComposeWatch:
     target: /functions
     action: sync+restart
     exclude: swagger.json
+nativeToolchainDefinition:
+  commands:
+    start:
+      type: ShellScript
+      bash: ./start.sh
+      powershell: ./start.ps1
+    watch:
+      type: ShellScript
+      bash: ./watch.sh
+      powershell: ./watch.ps1
+    update:
+      type: ShellScript
+      bash: |
+        #!/usr/bin/env bash
+        set -eu -o pipefail
+        HASURA_CONFIGURATION_DIRECTORY="$HASURA_PLUGIN_CONNECTOR_CONTEXT_PATH" "$HASURA_DDN_NATIVE_CONNECTOR_PLUGIN_DIR/ndc-oas-lambda" update
+      powershell: |
+        $ErrorActionPreference = "Stop"
+        & "$env:HASURA_DDN_NATIVE_CONNECTOR_PLUGIN_DIR\ndc-oas-lambda.bat" update

connector-definition/.hasura-connector/read-package-script.js

@@ -0,0 +1,29 @@
+// This script reads from the package.json file in the current working directory
+// and prints out the text in the "scripts.<name>" entry. This is used to bypass
+// npm, which does not handle signals correctly, and execute the command directly
+
+const fs = require("node:fs");
+const process = require("node:process");
+const path = require("node:path");
+
+const cwd = process.cwd();
+const packageJsonPath = path.join(cwd, "./package.json");
+
+if (process.argv.length < 3) {
+  console.error("Error: Pass the name of script command you want to read as the first command line arg.");
+  console.error("Usage: node read-package-script.js <name>");
+  process.exit(1);
+}
+const desiredScript = process.argv[2];
+
+try {
+  const packageJsonText = fs.readFileSync(packageJsonPath);
+  const packageJson = JSON.parse(packageJsonText);
+  const script = packageJson.scripts[desiredScript];
+  if (script === undefined) {
+    console.error(`Error: script ${desiredScript} not found in ${packageJsonPath}`)
+  }
+  console.log(script);
+} catch (e) {
+  console.error(`Error reading ${packageJsonPath}: ${e}`);
+}

connector-definition/.hasura-connector/start.ps1

@@ -0,0 +1,17 @@
+$ErrorActionPreference = "Stop"
+
+$scriptDir = Get-Location
+
+& ./check-reqs.ps1
+
+Push-Location $env:HASURA_PLUGIN_CONNECTOR_CONTEXT_PATH
+try {
+  $startScript = & node "$PSScriptRoot\read-package-script.js" "start"
+  if ($LASTEXITCODE -ne 0) {
+    exit 1
+  }
+  $env:PATH = "$($env:PATH);$($env:HASURA_PLUGIN_CONNECTOR_CONTEXT_PATH)\node_modules\.bin"
+  Invoke-Expression "& $startScript"
+} finally {
+  Pop-Location
+}

connector-definition/.hasura-connector/start.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+set -eu -o pipefail
+
+script_dir=$(pwd)
+
+./check-reqs.sh
+
+cd $HASURA_PLUGIN_CONNECTOR_CONTEXT_PATH
+start_script=$(node "$script_dir/read-package-script.js" "start")
+PATH="$PATH:$(pwd)/node_modules/.bin" exec $start_script

connector-definition/.hasura-connector/watch.ps1

@@ -0,0 +1,17 @@
+$ErrorActionPreference = "Stop"
+
+$scriptDir = Get-Location
+
+& ./check-reqs.ps1
+
+Push-Location $env:HASURA_PLUGIN_CONNECTOR_CONTEXT_PATH
+try {
+  $watchScript = & node "$PSScriptRoot\read-package-script.js" "watch"
+  if ($LASTEXITCODE -ne 0) {
+    exit 1
+  }
+  $env:PATH = "$($env:PATH);$($env:HASURA_PLUGIN_CONNECTOR_CONTEXT_PATH)\node_modules\.bin"
+  Invoke-Expression "& $watchScript"
+} finally {
+  Pop-Location
+}

connector-definition/.hasura-connector/watch.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+set -eu -o pipefail
+
+script_dir=$(pwd)
+
+./check-reqs.sh
+
+cd $HASURA_PLUGIN_CONNECTOR_CONTEXT_PATH
+watch_script=$(node "$script_dir/read-package-script.js" "watch")
+PATH="$PATH:$(pwd)/node_modules/.bin" exec $watch_script

src/app/writer/index.ts

@@ -22,7 +22,12 @@ export async function writeToFileSystem(codeToWrite: types.GeneratedCode[]) {
     tsConfigWriter.writeToFileSystem();
 
     logger.info("running npm install :: installing dependencies");
-    execSync("npm install", { stdio: "inherit" });
+    if (process.env.HASURA_PLUGIN_CONNECTOR_CONTEXT_PATH) {
+      execSync("npm install ", { stdio: "inherit", cwd: process.env.HASURA_PLUGIN_CONNECTOR_CONTEXT_PATH });
+    } else {
+      execSync("npm install ", { stdio: "inherit" });
+    }
+    
     logger.info("all dependencies installed");
   } catch (e) {
     if (e instanceof apiWriter.SimilarFileContentsError) {