ClangD support for Eclipse Che

agents/ls-clang/pom.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Copyright (c) 2012-2018 Red Hat, Inc.
+    All rights reserved. This program and the accompanying materials
+    are made available under the terms of the Eclipse Public License v1.0
+    which accompanies this distribution, and is available at
+    http://www.eclipse.org/legal/epl-v10.html
+
+    Contributors:
+      Red Hat, Inc. - initial API and implementation
+
+-->
+<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>
+    <parent>
+        <artifactId>che-agents-parent</artifactId>
+        <groupId>org.eclipse.che</groupId>
+        <version>6.0.0-M5-SNAPSHOT</version>
+    </parent>
+    <artifactId>ls-clang-agent</artifactId>
+    <name>Language Server Clang Agent</name>
+</project>

agents/ls-clang/src/main/resources/installers/1.0.0/org.eclipse.che.ls.clang.json

@@ -0,0 +1,8 @@
+{
+    "id": "org.eclipse.che.ls.clangd",
+    "version": "1.0.0",
+    "name": "Clangd language server",
+    "description": "Clangd intellisense for C/C++ projects.",
+    "dependencies": [],
+    "properties": {}
+  }

agents/ls-clang/src/main/resources/installers/1.0.0/org.eclipse.che.ls.clang.script.sh

@@ -0,0 +1,172 @@
+#
+# Copyright (c) 2012-2018 Red Hat, Inc.
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Eclipse Public License v1.0
+# which accompanies this distribution, and is available at
+# http://www.eclipse.org/legal/epl-v10.html
+#
+# Contributors:
+#   Red Hat, Inc. - initial API and implementation
+#
+
+is_current_user_root() {
+    test "$(id -u)" = 0
+}
+
+is_current_user_sudoer() {
+    sudo -n true > /dev/null 2>&1
+}
+
+set_sudo_command() {
+    if is_current_user_sudoer && ! is_current_user_root; then SUDO="sudo -E"; else unset SUDO; fi
+}
+
+set_sudo_command
+unset PACKAGES
+command -v tar >/dev/null 2>&1 || { PACKAGES=${PACKAGES}" tar"; }
+command -v curl >/dev/null 2>&1 || { PACKAGES=${PACKAGES}" curl"; }
+command -v wget >/dev/null 2>&1 || { PACKAGES=${PACKAGES}" wget"; }
+
+CHE_DIR=$HOME/che
+LS_DIR=${CHE_DIR}/ls-clangd
+LS_LAUNCHER=${LS_DIR}/launch.sh
+CLANGD_VERSION=6.0
+CLANGD_BINARY=clangd-${CLANGD_VERSION}
+
+if [ -f /etc/centos-release ]; then
+    FILE="/etc/centos-release"
+    LINUX_TYPE=$(cat $FILE | awk '{print $1}')
+ elif [ -f /etc/redhat-release ]; then
+    FILE="/etc/redhat-release"
+    LINUX_TYPE=$(cat $FILE | cut -c 1-8)
+ else
+    FILE="/etc/os-release"
+    LINUX_TYPE=$(cat $FILE | grep ^ID= | tr '[:upper:]' '[:lower:]')
+    LINUX_VERSION=$(cat $FILE | grep ^VERSION_ID=)
+fi
+
+MACHINE_TYPE=$(uname -m)
+
+mkdir -p ${CHE_DIR}
+mkdir -p ${LS_DIR}
+
+#########################
+#### Install packages ###
+#########################
+#
+# Red Hat Enterprise Linux 7
+############################
+if echo ${LINUX_TYPE} | grep -qi "rhel"; then
+   test "${PACKAGES}" = "" || {
+       ${SUDO} yum install ${PACKAGES};
+   }
+
+   command -v ${CLANGD_BINARY} >/dev/null 2>&1 || {
+       echo "LLVM / Clang ${CLANGD_VERSION} not supported on Red Hat Enterprise Linux 7.";
+       exit 1;
+   }
+
+# Red Hat Enterprise Linux 6
+############################
+elif echo ${LINUX_TYPE} | grep -qi "Red Hat"; then
+   test "${PACKAGES}" = "" || {
+       ${SUDO} yum install ${PACKAGES};
+   }
+
+   command -v ${CLANGD_BINARY} >/dev/null 2>&1 || {
+       echo "LLVM / Clang ${CLANGD_VERSION} not supported on Red Hat Enterprise Linux 6.";
+       exit 1;
+   }
+
+
+# Ubuntu 14.04 16.04 / Linux Mint 17
+####################################
+elif echo ${LINUX_TYPE} | grep -qi "ubuntu"; then
+   test "${PACKAGES}" = "" || {
+       ${SUDO} apt-get update;
+       ${SUDO} apt-get -y install ${PACKAGES};
+   }
+
+   command -v ${CLANGD_BINARY} >/dev/null 2>&1 || {
+       {
+           wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -;
+           # Fingerprint: 6084 F3CF 814B 57C1 CF12 EFD5 15CF 4D18 AF4F 7421
+           ${SUDO} apt-add-repository "deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial-${CLANGD_VERSION} main"; 
+       };
+
+       ${SUDO} apt-get update;
+       ${SUDO} apt-get install -y clang-tools-${CLANGD_VERSION};
+       ${SUDO} ln -s /usr/bin/clangd-${CLANGD_VERSION} /usr/bin/clangd
+   }
+
+
+# Debian 8
+##########
+elif echo ${LINUX_TYPE} | grep -qi "debian"; then
+   test "${PACKAGES}" = "" || {
+       ${SUDO} apt-get update;
+       ${SUDO} apt-get -y install ${PACKAGES};
+   }
+
+   command -v ${CLANGD_BINARY} >/dev/null 2>&1 || {
+       {
+           wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -;
+           # Fingerprint: 6084 F3CF 814B 57C1 CF12 EFD5 15CF 4D18 AF4F 7421
+           ${SUDO} apt-add-repository "deb http://apt.llvm.org/jessie/ llvm-toolchain-jessie-${CLANGD_VERSION} main"; 
+       };
+
+       ${SUDO} apt-get update;
+       ${SUDO} apt-get install -y clang-tools-${CLANGD_VERSION};
+       ${SUDO} ln -s /usr/bin/clangd-${CLANGD_VERSION} /usr/bin/clangd
+   }
+
+## Fedora 23
+############
+elif echo ${LINUX_TYPE} | grep -qi "fedora"; then
+    test "${PACKAGES}" = "" || {
+        ${SUDO} dnf -y install ${PACKAGES};
+    }
+
+    command -v ${CLANGD_BINARY} >/dev/null 2>&1 || {
+       echo "LLVM / Clang ${CLANGD_VERSION} not supported on Fedora 23.";
+       exit 1;
+    }
+
+## CentOS 7.1 & Oracle Linux 7.1
+################################
+elif echo ${LINUX_TYPE} | grep -qi "centos"; then
+    test "${PACKAGES}" = "" || {
+        ${SUDO} yum -y install ${PACKAGES};
+    }
+
+    command -v ${CLANGD_BINARY} >/dev/null 2>&1 || {
+       echo "LLVM / Clang ${CLANGD_VERSION} not supported on CentOS.";
+       exit 1;
+    }
+
+## openSUSE 13.2
+################
+elif echo ${LINUX_TYPE} | grep -qi "opensuse"; then
+   test "${PACKAGES}" = "" || {
+       ${SUDO} zypper install -y ${PACKAGES};
+   }
+
+   command -v ${CLANGD_BINARY} >/dev/null 2>&1 || {
+       echo "LLVM / Clang ${CLANGD_VERSION} not supported on OpenSUSE 13.2.";
+       exit 1;
+   }
+
+else
+   >&2 echo "Unrecognized Linux Type"
+   >&2 cat $FILE
+   exit 1
+fi
+
+
+#########################
+### Install Clangd LS ###
+#########################
+
+touch ${LS_LAUNCHER}
+chmod +x ${LS_LAUNCHER}
+echo "tee -a /home/user/clangd-input.log | clangd -disable-symbolication -pretty -resource-dir=/usr/include/ -enable-snippets | tee -a /home/user/clangd-output.log" > ${LS_LAUNCHER}

agents/pom.xml

@@ -39,5 +39,6 @@
         <module>test-ls</module>
         <module>ls-yaml</module>
         <module>ls-camel</module>
+        <module>ls-clang</module>
     </modules>
 </project>

assembly/assembly-wsagent-war/pom.xml

@@ -39,6 +39,10 @@
             <groupId>org.eclipse.che.plugin</groupId>
             <artifactId>che-plugin-camel-server</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.eclipse.che.plugin</groupId>
+            <artifactId>che-plugin-clangd-lang-server</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.eclipse.che.plugin</groupId>
             <artifactId>che-plugin-composer-server</artifactId>

assembly/assembly-wsmaster-war/pom.xml

@@ -88,6 +88,10 @@
             <groupId>org.eclipse.che</groupId>
             <artifactId>ls-camel-agent</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.eclipse.che</groupId>
+            <artifactId>ls-clang-agent</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.eclipse.che</groupId>
             <artifactId>ls-csharp-agent</artifactId>

plugins/plugin-clangd/che-plugin-clangd-lang-server/pom.xml

@@ -0,0 +1,68 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Copyright (c) 2012-2018 Red Hat, Inc.
+    All rights reserved. This program and the accompanying materials
+    are made available under the terms of the Eclipse Public License v1.0
+    which accompanies this distribution, and is available at
+    http://www.eclipse.org/legal/epl-v10.html
+
+    Contributors:
+      Red Hat, Inc. - initial API and implementation
+
+-->
+<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>
+    <parent>
+        <artifactId>che-plugin-clangd-parent</artifactId>
+        <groupId>org.eclipse.che.plugin</groupId>
+        <version>6.0.0-M5-SNAPSHOT</version>
+    </parent>
+    <artifactId>che-plugin-clangd-lang-server</artifactId>
+    <name>Che Plugin :: ClangD C/C++ :: Extension Server</name>
+    <properties>
+        <findbugs.failonerror>false</findbugs.failonerror>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>com.google.inject</groupId>
+            <artifactId>guice</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.google.inject.extensions</groupId>
+            <artifactId>guice-multibindings</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.eclipse.che.core</groupId>
+            <artifactId>che-core-api-languageserver</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.eclipse.che.core</groupId>
+            <artifactId>che-core-api-languageserver-shared</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.eclipse.che.core</groupId>
+            <artifactId>che-core-api-project</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.eclipse.che.core</groupId>
+            <artifactId>che-core-commons-inject</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.eclipse.che.plugin</groupId>
+            <artifactId>che-plugin-cpp-lang-server</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.eclipse.lsp4j</groupId>
+            <artifactId>org.eclipse.lsp4j</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.eclipse.lsp4j</groupId>
+            <artifactId>org.eclipse.lsp4j.jsonrpc</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+        </dependency>
+    </dependencies>
+</project>

plugins/plugin-clangd/che-plugin-clangd-lang-server/src/main/java/org/eclipse/plugin/clangd/inject/ClangModule.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2012-2018 Red Hat, Inc.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *   Red Hat, Inc. - initial API and implementation
+ */
+package org.eclipse.plugin.clangd.inject;
+
+import static java.util.Arrays.asList;
+
+import com.google.inject.AbstractModule;
+import com.google.inject.multibindings.Multibinder;
+import org.eclipse.che.api.languageserver.launcher.LanguageServerLauncher;
+import org.eclipse.che.api.languageserver.shared.model.LanguageDescription;
+import org.eclipse.che.api.project.server.type.ProjectTypeDef;
+import org.eclipse.che.inject.DynaModule;
+import org.eclipse.che.plugin.cpp.projecttype.CProjectType;
+import org.eclipse.che.plugin.cpp.projecttype.CppProjectType;
+import org.eclipse.plugin.clangd.languageserver.ClangDLanguageServerLauncher;
+
+/** @author Alexander Andrienko */
+/** @author Hanno Kolvenbach */
+@DynaModule
+public class ClangModule extends AbstractModule {
+  public static final String LANGUAGE_ID = "clangd";
+  private static final String[] EXTENSIONS =
+      new String[] {
+        "c", "h", "cpp", "hpp", "cc", "hh", "hxx", "cxx", "C", "H", "CPP", "HPP", "CC", "HH", "CXX",
+        "HXX"
+      };
+  private static final String MIME_TYPE = "text/x-cpp";
+
+  @Override
+  protected void configure() {
+    Multibinder<ProjectTypeDef> projectTypeMultibinder =
+        Multibinder.newSetBinder(binder(), ProjectTypeDef.class);
+
+    projectTypeMultibinder.addBinding().to(CProjectType.class);
+    projectTypeMultibinder.addBinding().to(CppProjectType.class);
+
+    Multibinder.newSetBinder(binder(), LanguageServerLauncher.class)
+        .addBinding()
+        .to(ClangDLanguageServerLauncher.class);
+
+    LanguageDescription description = new LanguageDescription();
+    description.setFileExtensions(asList(EXTENSIONS));
+    description.setLanguageId(LANGUAGE_ID);
+    description.setMimeType(MIME_TYPE);
+
+    Multibinder.newSetBinder(binder(), LanguageDescription.class)
+        .addBinding()
+        .toInstance(description);
+  }
+}