Inlined Pom.kt into DependencyUtils (relates #155)

Author: holgerbrandl

src/main/kotlin/kscript/app/DependencyUtil.kt

@@ -21,7 +21,10 @@ fun resolveDependencies(depIds: List<String>, customRepos: List<MavenRepo> = emp
 
     // Use cached classpath from previous run if present
     if (DEP_LOOKUP_CACHE_FILE.isFile()) {
-        val cache = DEP_LOOKUP_CACHE_FILE.readLines().filter { it.isNotBlank() }.associateBy({ it.split(" ")[0] }, { it.split(" ")[1] })
+        val cache = DEP_LOOKUP_CACHE_FILE
+            .readLines()
+            .filter { it.isNotBlank() }
+            .associateBy({ it.split(" ")[0] }, { it.split(" ")[1] })
 
         if (cache.containsKey(depsHash)) {
             return cache.get(depsHash)
@@ -104,10 +107,70 @@ fun resolveDependencies(depIds: List<String>, customRepos: List<MavenRepo> = emp
 }
 
 
+internal fun buildPom(depIds: List<String>, customRepos: List<MavenRepo>): String {
+    val depTags = depIds.map {
+        val regex = Regex("^([^:]*):([^:]*):([^:@]*)(:(.*))?(@(.*))?\$")
+        val matchResult = regex.find(it)
+
+        if (matchResult == null) {
+            System.err.println("[ERROR] Invalid dependency locator: '${it}'.  Expected format is groupId:artifactId:version[:classifier][@type]")
+            quit(1)
+        }
+
+        """
+    <dependency>
+            <groupId>${matchResult.groupValues[1]}</groupId>
+            <artifactId>${matchResult.groupValues[2]}</artifactId>
+            <version>${matchResult.groupValues[3]}</version>
+            ${matchResult.groups[5]?.let { "<classifier>" + it.value + "</classifier>" } ?: ""}
+            ${matchResult.groups[7]?.let { "<type>" + it.value + "</type>" } ?: ""}
+    </dependency>
+    """
+    }
+
+    // see https://github.com/holgerbrandl/kscript/issues/22
+    val repoTags = customRepos.map {
+        """
+    <repository>
+            <id>${it.id}</id>
+            <url>${it.url}</url>
+    </repository>
+    """
+
+    }
+
+    return """
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>kscript</groupId>
+    <artifactId>maven_template</artifactId>
+    <version>1.0</version>
+
+     <repositories>
+        <repository>
+            <id>jcenter</id>
+            <url>http://jcenter.bintray.com/</url>
+        </repository>
+        ${repoTags.joinToString("\n")}
+    </repositories>
+
+    <dependencies>
+    ${depTags.joinToString("\n")}
+    </dependencies>
+</project>
+"""
+}
+
+
 // called by unit tests
 object DependencyUtil {
     @JvmStatic
     fun main(args: Array<String>) {
         System.err.println(resolveDependencies(args.toList(), loggingEnabled = false))
     }
-}
+}