From 414fa1102f661ff23913c1b51207ad0479f99bfb Mon Sep 17 00:00:00 2001
From: Kai Reinhard <K.Reinhard@micromata.de>
Date: Tue, 18 Dec 2018 23:41:09 +0000
Subject: [PATCH] Queuing of borg commands started.

---
 borgbutler-core/src/main/java/de/micromata/borgbutler/BorgCommands.java |  133 ++++++--------------------------------------
 1 files changed, 19 insertions(+), 114 deletions(-)

diff --git a/borgbutler-core/src/main/java/de/micromata/borgbutler/BorgCommands.java b/borgbutler-core/src/main/java/de/micromata/borgbutler/BorgCommands.java
index ae7249e..4a7806a 100644
--- a/borgbutler-core/src/main/java/de/micromata/borgbutler/BorgCommands.java
+++ b/borgbutler-core/src/main/java/de/micromata/borgbutler/BorgCommands.java
@@ -1,33 +1,26 @@
 package de.micromata.borgbutler;
 
 import de.micromata.borgbutler.config.BorgRepoConfig;
-import de.micromata.borgbutler.config.Configuration;
-import de.micromata.borgbutler.config.ConfigurationHandler;
 import de.micromata.borgbutler.config.Definitions;
 import de.micromata.borgbutler.data.Archive;
-import de.micromata.borgbutler.data.ArchiveShortInfo;
 import de.micromata.borgbutler.data.Repository;
 import de.micromata.borgbutler.json.JsonUtils;
 import de.micromata.borgbutler.json.borg.*;
 import de.micromata.borgbutler.utils.DateUtils;
 import de.micromata.borgbutler.utils.ReplaceUtils;
-import lombok.Setter;
 import org.apache.commons.collections4.CollectionUtils;
-import org.apache.commons.exec.CommandLine;
-import org.apache.commons.exec.DefaultExecutor;
-import org.apache.commons.exec.PumpStreamHandler;
-import org.apache.commons.exec.environment.EnvironmentUtils;
 import org.apache.commons.io.output.ByteArrayOutputStream;
-import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import javax.naming.Context;
 import java.io.File;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.time.LocalDateTime;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Scanner;
 
 public class BorgCommands {
     private static Logger log = LoggerFactory.getLogger(BorgCommands.class);
@@ -39,7 +32,7 @@
      * @return Parsed repo config returned by Borg command (without archives).
      */
     public static Repository info(BorgRepoConfig repoConfig) {
-        Context context = new Context().setRepoConfig(repoConfig).setCommand("info").setParams("--json");
+        BorgCommand context = new BorgCommand().setRepoConfig(repoConfig).setCommand("info").setParams("--json");
         String json = execute(context);
         if (json == null) {
             return null;
@@ -67,8 +60,8 @@
      * @param repository Repository without archives, archives will be loaded.
      */
     public static void list(BorgRepoConfig repoConfig, Repository repository) {
-        Context context = new Context().setRepoConfig(repoConfig).setCommand("list").setParams("--json");
-        String json = execute(context);
+        BorgCommand command = new BorgCommand().setRepoConfig(repoConfig).setCommand("list").setParams("--json");
+        String json = execute(command);
         if (json == null) {
             log.error("Can't load archives from repo '" + repository.getName() + "'.");
             return;
@@ -103,15 +96,15 @@
      * @param repository Repository without archives.
      */
     public static void info(BorgRepoConfig repoConfig, Archive archive, Repository repository) {
-        Context context = new Context().setRepoConfig(repoConfig).setCommand("info").setArchive(archive.getName())
+        BorgCommand command = new BorgCommand().setRepoConfig(repoConfig).setCommand("info").setArchive(archive.getName())
                 .setParams("--json");
-        String json = execute(context);
+        String json = execute(command);
         if (json == null) {
             return;
         }
         BorgArchiveInfo archiveInfo = JsonUtils.fromJson(BorgArchiveInfo.class, json);
         if (archiveInfo == null) {
-            log.error("Archive '" + context.getRepoArchive() + "' not found.");
+            log.error("Archive '" + command.getRepoArchive() + "' not found.");
             return;
         }
         repository.setLastModified(DateUtils.format(archiveInfo.getRepository().getLastModified()))
@@ -123,7 +116,7 @@
             return;
         }
         if (archiveInfo.getArchives().size() > 1) {
-            log.warn("Archive '" + context.getRepoArchive() + "' contains more than one archives!? (Using only first.)");
+            log.warn("Archive '" + command.getRepoArchive() + "' contains more than one archives!? (Using only first.)");
         }
         BorgArchive2 borgArchive = archiveInfo.getArchives().get(0);
         archive.setStart(DateUtils.format(borgArchive.getStart()))
@@ -140,10 +133,10 @@
     }
 
     public static List<BorgFilesystemItem> listArchiveContent(BorgRepoConfig repoConfig, String archive) {
-        Context context = new Context().setRepoConfig(repoConfig).setCommand("list").setArchive(archive)
+        BorgCommand command = new BorgCommand().setRepoConfig(repoConfig).setCommand("list").setArchive(archive)
                 .setParams("--json-lines");
         ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
-        execute(outputStream, context);
+        execute(outputStream, command);
         String response = outputStream.toString(Definitions.STD_CHARSET);
         List<BorgFilesystemItem> content = new ArrayList<>();
         try (Scanner scanner = new Scanner(response)) {
@@ -173,105 +166,17 @@
         if (!restoreDir.exists()) {
             restoreDir.mkdirs();
         }
-        Context context = new Context().setWorkingDir(restoreDir).setRepoConfig(repoConfig)
+        BorgCommand command = new BorgCommand().setWorkingDir(restoreDir).setRepoConfig(repoConfig)
                 .setCommand("extract").setArchive(archive).setArgs(path);
-        execute(context);
+        execute(command);
         return restoreDir;
     }
 
-    private static String execute(Context context) {
-        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
-        execute(outputStream, context);
-        String json = outputStream.toString(Definitions.STD_CHARSET);
-        return json;
+    private static String execute(BorgCommand command) {
+        return BorgExecutorQueue.getInstance().execute(command);
     }
 
-    private static void execute(OutputStream outputStream, Context context) {
-        CommandLine cmdLine = new CommandLine(ConfigurationHandler.getConfiguration().getBorgCommand());
-        cmdLine.addArgument(context.command);
-        if (context.params != null) {
-            for (String param : context.params) {
-                if (param != null)
-                    cmdLine.addArgument(param);
-            }
-        }
-        cmdLine.addArgument(context.getRepoArchive());
-        if (context.args != null) {
-            for (String arg : context.args) {
-                if (arg != null)
-                    cmdLine.addArgument(arg);
-            }
-        }
-        DefaultExecutor executor = new DefaultExecutor();
-        if (context.workingDir != null) {
-            executor.setWorkingDirectory(context.workingDir);
-        }
-        //executor.setExitValue(2);
-        //ExecuteWatchdog watchdog = new ExecuteWatchdog(60000);
-        //executor.setWatchdog(watchdog);
-        //  ExecuteResultHandler handler = new DefaultExecuteResultHandler();
-        PumpStreamHandler streamHandler = new PumpStreamHandler(outputStream);
-        executor.setStreamHandler(streamHandler);
-        String borgCall = cmdLine.getExecutable() + " " + StringUtils.join(cmdLine.getArguments(), " ");
-        log.info("Executing '" + borgCall + "'...");
-        try {
-            executor.execute(cmdLine, getEnvironment(context.repoConfig));
-        } catch (Exception ex) {
-            log.error("Error while creating environment for borg call '" + borgCall + "': " + ex.getMessage(), ex);
-            log.error("Response: " + StringUtils.abbreviate(outputStream.toString(), 10000));
-            return;
-        }
-    }
-
-
-    private static Map<String, String> getEnvironment(BorgRepoConfig repoConfig) throws IOException {
-        Configuration config = ConfigurationHandler.getConfiguration();
-        Map<String, String> env = EnvironmentUtils.getProcEnvironment();
-        addEnvironmentVariable(env, "BORG_REPO", repoConfig.getRepo());
-        addEnvironmentVariable(env, "BORG_RSH", repoConfig.getRsh());
-        addEnvironmentVariable(env, "BORG_PASSPHRASE", repoConfig.getPassphrase());
-        String passcommand = repoConfig.getPasswordCommand();
-        if (StringUtils.isNotBlank(passcommand)) {
-            // For MacOS BORG_PASSCOMMAND="security find-generic-password -a $USER -s borg-passphrase -w"
-            passcommand = passcommand.replace("$USER", System.getProperty("user.name"));
-            addEnvironmentVariable(env, "BORG_PASSCOMMAND", passcommand);
-        }
-        return env;
-    }
-
-    private static void addEnvironmentVariable(Map<String, String> env, String name, String value) {
-        if (StringUtils.isNotBlank(value)) {
-            EnvironmentUtils.addVariableToEnvironment(env, name + "=" + value);
-        }
-    }
-
-    private static class Context {
-        @Setter
-        File workingDir;
-        String[] args;
-        String[] params;
-        @Setter
-        BorgRepoConfig repoConfig;
-        @Setter
-        String command;
-        @Setter
-        String archive;
-
-        Context setArgs(String... args) {
-            this.args = args;
-            return this;
-        }
-
-        Context setParams(String... params) {
-            this.params = params;
-            return this;
-        }
-
-        String getRepoArchive() {
-            if (archive == null) {
-                return repoConfig.getRepo();
-            }
-            return repoConfig.getRepo() + "::" + archive;
-        }
+    private static void execute(OutputStream outputStream, BorgCommand command) {
+        BorgExecutorQueue.getInstance().execute(outputStream, command);
     }
 }

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