library_index.json is no more bundled.

There is no reason to bundle this file.

If the index file is not available an empty index is
returned by the parser.

Fix #5143
(together with e80c08: Use a specific hardware/package_index_bundled.json)

arduino-core/src/cc/arduino/contributions/libraries/EmptyLibrariesIndex.java

@@ -0,0 +1,44 @@
+/*
+ * This file is part of Arduino.
+ *
+ * Copyright 2016 Arduino LLC (http://www.arduino.cc/)
+ *
+ * Arduino is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ */
+
+package cc.arduino.contributions.libraries;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class EmptyLibrariesIndex extends LibrariesIndex {
+
+  private List<ContributedLibrary> list = new ArrayList<>();
+
+  @Override
+  public List<ContributedLibrary> getLibraries() {
+    return list;
+  }
+
+}

arduino-core/src/cc/arduino/contributions/libraries/LibrariesIndexer.java

@@ -68,12 +68,16 @@ public class LibrariesIndexer {
   private final List<String> badLibNotified = new ArrayList<>();
 
   public LibrariesIndexer(File preferencesFolder) {
-    this.indexFile = new File(preferencesFolder, "library_index.json");
+    indexFile = new File(preferencesFolder, "library_index.json");
-    this.stagingFolder = new File(new File(preferencesFolder, "staging"), "libraries");
+    stagingFolder = new File(new File(preferencesFolder, "staging"), "libraries");
   }
 
   public void parseIndex() throws IOException {
-    parseIndex(indexFile);
+    if (!indexFile.exists()) {
+      index = new EmptyLibrariesIndex();
+    } else {
+      parseIndex(indexFile);
+    }
     // TODO: resolve libraries inner references
   }
 

arduino-core/src/processing/app/BaseNoGui.java

@@ -628,35 +628,12 @@ public class BaseNoGui {
     loadHardware(getSketchbookHardwareFolder());
     createToolPreferences(indexer.getInstalledTools(), true);
 
-    librariesIndexer = new LibrariesIndexer(BaseNoGui.getSettingsFolder());
+    librariesIndexer = new LibrariesIndexer(getSettingsFolder());
-    File librariesIndexFile = librariesIndexer.getIndexFile();
-    copyStockLibraryIndexIfUpstreamIsMissing(librariesIndexFile);
     try {
       librariesIndexer.parseIndex();
     } catch (JsonProcessingException e) {
+      File librariesIndexFile = librariesIndexer.getIndexFile();
       FileUtils.deleteIfExists(librariesIndexFile);
-      copyStockLibraryIndexIfUpstreamIsMissing(librariesIndexFile);
-      librariesIndexer.parseIndex();
-    }
-  }
-
-  private static void copyStockLibraryIndexIfUpstreamIsMissing(File librariesIndexFile) throws IOException {
-    File defaultLibraryJsonFile = new File(getContentFile("dist"), "library_index.json");
-    if (!librariesIndexFile.isFile() || (defaultLibraryJsonFile.isFile() && defaultLibraryJsonFile.lastModified() > librariesIndexFile.lastModified())) {
-      if (defaultLibraryJsonFile.isFile()) {
-        FileUtils.copyFile(defaultLibraryJsonFile, librariesIndexFile);
-      } else {
-        FileOutputStream out = null;
-        try {
-          // Otherwise create an empty packages index
-          out = new FileOutputStream(librariesIndexFile);
-          out.write("{ \"libraries\" : [ ] }".getBytes());
-        } catch (IOException e) {
-          e.printStackTrace();
-        } finally {
-          IOUtils.closeQuietly(out);
-        }
-      }
     }
   }
 

build/build.xml

@@ -8,9 +8,6 @@
     <format property="BUILD_DATE" pattern="yyyy/MM/dd hh:mm"/>
   </tstamp>
 
-  <!-- Main url for boards and libraries repository -->
-  <property name="library_index_url" value="http://downloads.arduino.cc/libraries/library_index.json" />
-
   <!-- Sets properties for macosx/windows/linux depending on current system -->
   <condition property="platform" value="macosx-old">
     <and>
@@ -259,7 +256,7 @@
   <!-- - - - - - - - - -->
   <!-- Revision check  -->
   <!-- - - - - - - - - -->
-  <target name="revision-check" depends="package-library-index-json-bundle">
+  <target name="revision-check">
 
     <!-- figure out the AVR core version number in platform.txt -->
     <loadfile srcfile="../hardware/arduino/avr/platform.txt" property="revision.avr.platform">
@@ -273,7 +270,7 @@
     </loadfile>
 
     <!-- figure out the latest AVR core version number in package_index.json -->
-    <loadfile srcfile="${staging_folder}/work/${staging_hardware_folder}/package_index_bundled.json" property="revision.avr.index">
+    <loadfile srcfile="../hardware/package_index_bundled.json" property="revision.avr.index">
       <filterchain>
         <tokenfilter>
           <linetokenizer />
@@ -439,8 +436,6 @@
 
     <antcall target="macosx-build-avr-toolchain" />
 
-    <antcall target="package-library-index-json-bundle"/>
-
     <antcall target="assemble">
       <param name="target.path" value="${staging_folder}/work/${staging_hardware_folder}/.." />
     </antcall>
@@ -720,8 +715,6 @@
       <param name="avrdude_archive_file" value="avrdude-6.0.1-arduino5-armhf-pc-linux-gnu-glibc2.13.tar.bz2"/>
       <param name="avrdude_version" value="6.0.1-arduino5"/>
     </antcall>
-
-    <antcall target="package-library-index-json-bundle"/>
   </target>
 
   <target name="linux32-build" depends="linux-libastyle-x86" description="Build linux (32-bit) version">
@@ -752,8 +745,6 @@
       <param name="avrdude_archive_file" value="avrdude-6.0.1-arduino5-i686-pc-linux-gnu.tar.bz2"/>
       <param name="avrdude_version" value="6.0.1-arduino5"/>
     </antcall>
-
-    <antcall target="package-library-index-json-bundle"/>
   </target>
 
   <target name="linux64-build" depends="linux-libastyle-x86" description="Build linux (64-bit) version">
@@ -784,8 +775,6 @@
       <param name="avrdude_archive_file" value="avrdude-6.0.1-arduino5-x86_64-pc-linux-gnu.tar.bz2"/>
       <param name="avrdude_version" value="6.0.1-arduino5"/>
     </antcall>
-
-    <antcall target="package-library-index-json-bundle"/>
   </target>
 
   <target name="linux-jvm-noop"/>
@@ -1072,8 +1061,6 @@
       <param name="avrdude_archive_file" value="avrdude-6.0.1-arduino5-i686-mingw32.zip"/>
       <param name="avrdude_version" value="6.0.1-arduino5"/>
     </antcall>
-
-    <antcall target="package-library-index-json-bundle"/>
   </target>
 
   <target name="windows-run" depends="build,start"/>
@@ -1164,19 +1151,6 @@
 
     <echo append="true" file="${staging_folder}/work/${staging_hardware_folder}/tools/avr/builtin_tools_versions.txt" message="arduino.avrdude=${avrdude_version}${line.separator}"/>
     <echo append="true" file="${staging_folder}/work/${staging_hardware_folder}/tools/avr/builtin_tools_versions.txt" message="arduino.avr-gcc=${gcc_version}${line.separator}"/>
-  </target>
-
-  <target name="package-library-index-json-bundle">
-    <mkdir dir="${staging_folder}/work/${staging_hardware_folder}"/>
-    <copy file="../hardware/package_index_bundled.json" tofile="${staging_folder}/work/${staging_hardware_folder}/package_index_bundled.json"/>
-
-    <mkdir dir="${staging_folder}/work/${staging_hardware_folder}/../dist/"/>
-    <get src="${library_index_url}.gz"
-         dest="${staging_folder}/work/${staging_hardware_folder}/../dist/library_index.json.gz"
-         verbose="true" skipexisting="false" />
-    <gunzip src ="${staging_folder}/work/${staging_hardware_folder}/../dist/library_index.json.gz"
-            dest="${staging_folder}/work/${staging_hardware_folder}/../dist/"/>
-    <delete file="${staging_folder}/work/${staging_hardware_folder}/../dist/library_index.json.gz"/>
 
     <delete dir="${staging_folder}/work/${staging_hardware_folder}/tmp"/>
   </target>