feat(sca): add normal npm decl support

analyser_sca/build.gradle.kts

@@ -11,6 +11,10 @@ dependencies {
 
     implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.10")
     implementation("org.jetbrains.kotlin:kotlin-reflect:1.6.10")
+
+    implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.3.2")
+
+    implementation("com.jayway.jsonpath:json-path:2.7.0")
 }
 
 application {

analyser_sca/src/main/kotlin/org/archguard/analyser/sca/parser/NpmParser.kt

@@ -0,0 +1,32 @@
+package org.archguard.analyser.sca.parser
+
+import com.jayway.jsonpath.JsonPath
+import org.archguard.analyser.sca.model.DeclFileTree
+import org.archguard.analyser.sca.model.DepDeclaration
+import org.archguard.analyser.sca.model.DepDependency
+
+class NpmParser : Parser() {
+    override fun lookupSource(file: DeclFileTree): List<DepDeclaration> {
+        val name: String = JsonPath.read(file.content, "$.name")
+        val version: String = JsonPath.read(file.content, "$.version")
+        val depMap: Map<String, String> = JsonPath.read(file.content, "$.dependencies")
+
+        return listOf(DepDeclaration(
+            name,
+            version,
+            "npm",
+            this.createDependencies(depMap)
+        ))
+    }
+
+    private fun createDependencies(depMap: Map<String, String>): List<DepDependency> {
+        return depMap.map {
+            DepDependency(
+                name = it.key,
+                group = "",
+                artifact = it.key,
+                version = it.value
+            )
+        }.toList()
+    }
+}

analyser_sca/src/test/kotlin/org/archguard/analyser/sca/JavaScriptFinderTest.kt

@@ -0,0 +1,10 @@
+package org.archguard.analyser.sca
+
+import org.junit.jupiter.api.Test
+
+internal class JavaScriptFinderTest {
+    @Test
+    internal fun should_handle_json() {
+
+    }
+}

analyser_sca/src/test/kotlin/org/archguard/analyser/sca/parser/NpmParserTest.kt

@@ -0,0 +1,28 @@
+package org.archguard.analyser.sca.parser
+
+import org.archguard.analyser.sca.model.DeclFileTree
+import org.junit.jupiter.api.Test
+import kotlin.test.assertEquals
+
+internal class NpmParserTest {
+    private val samplePackageJson = """{
+  "name": "my_package",
+  "version": "1.0.0",
+  "dependencies": {
+    "my_dep": "^1.0.0",
+    "another_dep": "~2.2.0"
+  }
+}
+""".trimIndent()
+
+    @Test
+    fun first_dep() {
+        val declFileTree = DeclFileTree("package.json", "package.json", samplePackageJson)
+        val declTree = NpmParser().lookupSource(declFileTree)
+
+        assertEquals(1, declTree.size)
+        assertEquals("my_package", declTree[0].name)
+        assertEquals("1.0.0", declTree[0].version)
+        assertEquals(2, declTree[0].dependencies.size)
+    }
+}