From d5be37cf00e5b056005aab6f5fb064d37d946086 Mon Sep 17 00:00:00 2001
From: Brett Leslie Porter <brett@apache.org>
Date: Wed, 13 Apr 2005 07:03:18 +0000
Subject: [PATCH] PR: MNG-232 resolve snapshots in bootstrap

git-svn-id: https://svn.apache.org/repos/asf/maven/components/trunk@163931 13f79535-47bb-0310-9956-ffa450edef68
---
 .../java/download/ArtifactDownloader.java     | 36 ++++++++++++++++++-
 1 file changed, 35 insertions(+), 1 deletion(-)

diff --git a/maven-mboot2/src/main/java/download/ArtifactDownloader.java b/maven-mboot2/src/main/java/download/ArtifactDownloader.java
index b616a4b429..5a565cc421 100644
--- a/maven-mboot2/src/main/java/download/ArtifactDownloader.java
+++ b/maven-mboot2/src/main/java/download/ArtifactDownloader.java
@@ -2,9 +2,11 @@ package download;
 
 import model.Dependency;
 import model.Repository;
+import util.FileUtils;
 
 import java.io.File;
 import java.io.FileNotFoundException;
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashSet;
@@ -82,7 +84,7 @@ public class ArtifactDownloader
                     directory.mkdirs();
                 }
 
-                boolean snapshot = dep.getVersion().indexOf( SNAPSHOT_SIGNATURE ) >= 0;
+                boolean snapshot = isSnapshot( dep );
 
                 if ( dep.getGroupId().equals( "org.apache.maven" ) && snapshot )
                 {
@@ -107,6 +109,11 @@ public class ArtifactDownloader
         }
     }
 
+    private static boolean isSnapshot( Dependency dep )
+    {
+        return dep.getVersion().indexOf( SNAPSHOT_SIGNATURE ) >= 0;
+    }
+
     private void setRemoteRepos( List repositories )
     {
         remoteRepos = new ArrayList();
@@ -158,6 +165,27 @@ public class ArtifactDownloader
             // of the checksum file was successful.
             try
             {
+                if ( isSnapshot( dep ) )
+                {
+                    String filename = getSnapshotMetadataFile( destinationFile.getPath(), "SNAPSHOT.version.txt" );
+                    String metaUrl = getSnapshotMetadataFile( url, "SNAPSHOT.version.txt" );
+                    log( "Downloading " + metaUrl );
+                    try
+                    {
+                        HttpUtils.getFile( metaUrl, new File( filename ), ignoreErrors, useTimestamp, proxyHost,
+                                           proxyPort, proxyUserName, proxyPassword, true );
+                        String version = FileUtils.fileRead( filename );
+                        log( "Resolved version: " + version );
+                        version = version.substring( version.lastIndexOf( "-", version.lastIndexOf( "-" ) - 1 ) + 1 );
+                        String extension = url.substring( url.length() - 4 );
+                        url = getSnapshotMetadataFile( url, version + extension );
+                    }
+                    catch ( IOException e )
+                    {
+                        log( "WARNING: SNAPSHOT version not found, using default" );
+                    }
+                }
+
                 log( "Downloading " + url );
                 HttpUtils.getFile( url, destinationFile, ignoreErrors, useTimestamp, proxyHost, proxyPort,
                                    proxyUserName, proxyPassword, true );
@@ -197,6 +225,12 @@ public class ArtifactDownloader
         return fileFound;
     }
 
+    private static String getSnapshotMetadataFile( String filename, String s )
+    {
+        int index = filename.lastIndexOf( "SNAPSHOT" );
+        return filename.substring( 0, index ) + s;
+    }
+
     private String replace( String text, String repl, String with )
     {
         StringBuffer buf = new StringBuffer( text.length() );