// applyPatch is used by the agent to copy patch data onto disk
// and then call the necessary git commands to apply the patch file
func (gapc *GitApplyPatchCommand) applyPatch(conf *model.TaskConfig,
	patch *patch.Patch, pluginLogger plugin.Logger) error {

	// patch sets and contain multiple patches, some of them for modules
	for _, patchPart := range patch.Patches {
		var dir string
		if patchPart.ModuleName == "" {
			// if patch is not part of a module, just apply patch against src root
			dir = gapc.Directory
			pluginLogger.LogExecution(slogger.INFO, "Applying patch with git...")
		} else {
			// if patch is part of a module, apply patch in module root
			module, err := conf.Project.GetModuleByName(patchPart.ModuleName)
			if err != nil {
				return fmt.Errorf("Error getting module: %v", err)
			}
			if module == nil {
				return fmt.Errorf("Module not found: %v", patchPart.ModuleName)
			}

			// skip the module if this build variant does not use it
			if !util.SliceContains(conf.BuildVariant.Modules, module.Name) {
				pluginLogger.LogExecution(slogger.INFO, "Skipping patch for"+
					" module %v, since the current build variant does not"+
					" use it", module.Name)
				continue
			}

			dir = filepath.Join(gapc.Directory, module.Prefix, module.Name)
			pluginLogger.LogExecution(slogger.INFO, "Applying module patch with git...")
		}

		// create a temporary folder and store patch files on disk,
		// for later use in shell script
		tempFile, err := ioutil.TempFile("", "mcipatch_")
		if err != nil {
			return err
		}
		defer tempFile.Close()
		_, err = io.WriteString(tempFile, patchPart.PatchSet.Patch)
		if err != nil {
			return err
		}
		tempAbsPath := tempFile.Name()

		// this applies the patch using the patch files in the temp directory
		patchCommandStrings := []string{
			fmt.Sprintf("set -o verbose"),
			fmt.Sprintf("set -o errexit"),
			fmt.Sprintf("ls"),
			fmt.Sprintf("cd '%v'", dir),
			fmt.Sprintf("git checkout '%v'", patchPart.Githash),
			fmt.Sprintf("git apply --check --whitespace=fix '%v'", tempAbsPath),
			fmt.Sprintf("git apply --stat '%v'", tempAbsPath),
			fmt.Sprintf("git apply --whitespace=fix < '%v'", tempAbsPath),
		}

		cmdsJoined := strings.Join(patchCommandStrings, "\n")
		patchCmd := &command.LocalCommand{
			CmdString:        cmdsJoined,
			WorkingDirectory: conf.WorkDir,
			Stdout:           pluginLogger.GetTaskLogWriter(slogger.INFO),
			Stderr:           pluginLogger.GetTaskLogWriter(slogger.ERROR),
			ScriptMode:       true,
		}

		err = patchCmd.Run()
		if err != nil {
			return err
		}
		pluginLogger.Flush()
	}
	return nil
}
// Execute gets the source code required by the project
func (ggpc *GitGetProjectCommand) Execute(pluginLogger plugin.Logger,
	pluginCom plugin.PluginCommunicator,
	conf *model.TaskConfig,
	stop chan bool) error {

	// expand the github parameters before running the task
	if err := plugin.ExpandValues(&ggpc.Revisions, conf.Expansions); err != nil {
		return err
	}

	location, err := conf.ProjectRef.Location()

	if err != nil {
		return err
	}

	gitCommands := []string{
		fmt.Sprintf("set -o errexit"),
		fmt.Sprintf("set -o verbose"),
		fmt.Sprintf("rm -rf %v", ggpc.Directory),
		fmt.Sprintf("git clone %v '%v'", location, ggpc.Directory),
		fmt.Sprintf("cd %v; git checkout %v", ggpc.Directory, conf.Task.Revision),
	}

	cmdsJoined := strings.Join(gitCommands, "\n")

	fetchSourceCmd := &command.LocalCommand{
		CmdString:        cmdsJoined,
		WorkingDirectory: conf.WorkDir,
		Stdout:           pluginLogger.GetTaskLogWriter(slogger.INFO),
		Stderr:           pluginLogger.GetTaskLogWriter(slogger.ERROR),
		ScriptMode:       true,
	}

	errChan := make(chan error)
	go func() {
		pluginLogger.LogExecution(slogger.INFO, "Fetching source from git...")
		errChan <- fetchSourceCmd.Run()
		pluginLogger.Flush()
	}()

	// wait until the command finishes or the stop channel is tripped
	select {
	case err := <-errChan:
		if err != nil {
			return err
		}
	case <-stop:
		pluginLogger.LogExecution(slogger.INFO, "Got kill signal")
		if fetchSourceCmd.Cmd != nil {
			pluginLogger.LogExecution(slogger.INFO, "Stopping process: %v", fetchSourceCmd.Cmd.Process.Pid)
			if err := fetchSourceCmd.Stop(); err != nil {
				pluginLogger.LogExecution(slogger.ERROR, "Error occurred stopping process: %v", err)
			}
		}
		return fmt.Errorf("Fetch command interrupted.")
	}

	// Fetch source for the modules
	for _, moduleName := range conf.BuildVariant.Modules {
		pluginLogger.LogExecution(slogger.INFO, "Fetching module: %v", moduleName)
		module, err := conf.Project.GetModuleByName(moduleName)
		if err != nil {
			pluginLogger.LogExecution(slogger.ERROR, "Couldn't get module %v: %v",
				moduleName, err)
			continue
		}
		if module == nil {
			pluginLogger.LogExecution(slogger.ERROR, "No module found for %v",
				moduleName)
			continue
		}

		moduleBase := filepath.Join(module.Prefix, module.Name)
		moduleDir := filepath.Join(conf.WorkDir, moduleBase, "/_")

		err = os.MkdirAll(moduleDir, 0755)
		if err != nil {
			return err
		}
		// clear the destination
		err = os.RemoveAll(moduleDir)
		if err != nil {
			return err
		}

		revision := ggpc.Revisions[moduleName]

		// if there is no revision, then use the branch name
		if revision == "" {
			revision = module.Branch
		}

		moduleCmds := []string{
			fmt.Sprintf("set -o errexit"),
			fmt.Sprintf("set -o verbose"),
			fmt.Sprintf("git clone %v '%v'", module.Repo, filepath.ToSlash(moduleBase)),
			fmt.Sprintf("cd %v; git checkout '%v'", filepath.ToSlash(moduleBase), revision),
		}

		moduleFetchCmd := &command.LocalCommand{
			CmdString:        strings.Join(moduleCmds, "\n"),
			WorkingDirectory: filepath.ToSlash(filepath.Join(conf.WorkDir, ggpc.Directory)),
			Stdout:           pluginLogger.GetTaskLogWriter(slogger.INFO),
			Stderr:           pluginLogger.GetTaskLogWriter(slogger.ERROR),
			ScriptMode:       true,
		}

		go func() {
			errChan <- moduleFetchCmd.Run()
			pluginLogger.Flush()
		}()

		// wait until the command finishes or the stop channel is tripped
		select {
		case err := <-errChan:
			if err != nil {
				return err
			}
		case <-stop:
			pluginLogger.LogExecution(slogger.INFO, "Got kill signal")
			if moduleFetchCmd.Cmd != nil {
				pluginLogger.LogExecution(slogger.INFO, "Stopping process: %v", moduleFetchCmd.Cmd.Process.Pid)
				if err := moduleFetchCmd.Stop(); err != nil {
					pluginLogger.LogExecution(slogger.ERROR, "Error occurred stopping process: %v", err)
				}
			}
			return fmt.Errorf("Fetch module command interrupted.")
		}
	}

	return nil

}
Beispiel #3
0
// Execute gets the source code required by the project
func (self *GitGetProjectCommand) Execute(pluginLogger plugin.Logger,
	pluginCom plugin.PluginCommunicator,
	conf *model.TaskConfig,
	stop chan bool) error {
	location, err := conf.ProjectRef.Location()

	if err != nil {
		return err
	}

	gitCommands := []string{
		fmt.Sprintf("set -o errexit"),
		fmt.Sprintf("set -o verbose"),
		fmt.Sprintf("rm -rf %v", self.Directory),
		fmt.Sprintf("git clone %v '%v'", location, self.Directory),
		fmt.Sprintf("cd %v; git checkout %v", self.Directory, conf.Task.Revision),
	}

	cmdsJoined := strings.Join(gitCommands, "\n")

	fetchSourceCmd := &command.LocalCommand{
		CmdString:        cmdsJoined,
		WorkingDirectory: conf.WorkDir,
		Stdout:           pluginLogger.GetTaskLogWriter(slogger.INFO),
		Stderr:           pluginLogger.GetTaskLogWriter(slogger.ERROR),
		ScriptMode:       true,
	}

	pluginLogger.LogExecution(slogger.INFO, "Fetching source from git...")
	if err := fetchSourceCmd.Run(); err != nil {
		return err
	}
	pluginLogger.Flush()

	// Fetch source for the modules
	for _, moduleName := range conf.BuildVariant.Modules {
		pluginLogger.LogExecution(slogger.INFO, "Fetching module: %v", moduleName)
		module, err := conf.Project.GetModuleByName(moduleName)
		if err != nil {
			pluginLogger.LogExecution(slogger.ERROR, "Couldn't get module %v: %v",
				moduleName, err)
			continue
		}
		if module == nil {
			pluginLogger.LogExecution(slogger.ERROR, "No module found for %v",
				moduleName)
			continue
		}

		moduleBase := filepath.Join(module.Prefix, module.Name)
		moduleDir := filepath.Join(conf.WorkDir, moduleBase, "/_")

		err = os.MkdirAll(moduleDir, 0755)
		if err != nil {
			return err
		}
		// clear the destination
		err = os.RemoveAll(moduleDir)
		if err != nil {
			return err
		}

		moduleCmds := []string{
			fmt.Sprintf("set -o errexit"),
			fmt.Sprintf("set -o verbose"),
			fmt.Sprintf("git clone %v '%v'", module.Repo, filepath.ToSlash(moduleBase)),
			fmt.Sprintf("cd %v; git checkout '%v'", filepath.ToSlash(moduleBase), module.Branch),
		}

		moduleFetchCmd := &command.LocalCommand{
			CmdString:        strings.Join(moduleCmds, "\n"),
			WorkingDirectory: filepath.ToSlash(filepath.Join(conf.WorkDir, self.Directory)),
			Stdout:           pluginLogger.GetTaskLogWriter(slogger.INFO),
			Stderr:           pluginLogger.GetTaskLogWriter(slogger.ERROR),
			ScriptMode:       true,
		}
		err = moduleFetchCmd.Run()
		if err != nil {
			return err
		}
		pluginLogger.Flush()
	}

	return nil

}
Beispiel #4
0
// Execute starts the shell with its given parameters.
func (self *ShellExecCommand) Execute(pluginLogger plugin.Logger,
	pluginCom plugin.PluginCommunicator,
	conf *model.TaskConfig,
	stop chan bool) error {
	pluginLogger.LogExecution(slogger.DEBUG, "Preparing script...")

	logWriterInfo := pluginLogger.GetTaskLogWriter(slogger.INFO)
	logWriterErr := pluginLogger.GetTaskLogWriter(slogger.ERROR)

	outBufferWriter := util.NewLineBufferingWriter(logWriterInfo)
	errorBufferWriter := util.NewLineBufferingWriter(logWriterErr)
	defer outBufferWriter.Flush()
	defer errorBufferWriter.Flush()

	localCmd := &command.LocalCommand{
		CmdString:  self.Script,
		Stdout:     outBufferWriter,
		Stderr:     errorBufferWriter,
		ScriptMode: true,
	}

	if self.WorkingDir != "" {
		localCmd.WorkingDirectory = filepath.Join(conf.WorkDir, self.WorkingDir)
	} else {
		localCmd.WorkingDirectory = conf.WorkDir
	}

	err := localCmd.PrepToRun(conf.Expansions)
	if err != nil {
		return fmt.Errorf("Failed to apply expansions: %v", err)
	}
	if self.Silent {
		pluginLogger.LogExecution(slogger.INFO, "Executing script (source hidden)...")
	} else {
		pluginLogger.LogExecution(slogger.INFO, "Executing script: %v", localCmd.CmdString)
	}

	doneStatus := make(chan error)
	go func() {
		var err error
		env := os.Environ()
		env = append(env, fmt.Sprintf("EVR_TASK_ID=%v", conf.Task.Id))
		env = append(env, fmt.Sprintf("EVR_AGENT_PID=%v", os.Getpid()))
		localCmd.Environment = env
		err = localCmd.Start()
		if err == nil {
			pluginLogger.LogSystem(slogger.DEBUG, "spawned shell process with pid %v", localCmd.Cmd.Process.Pid)

			// Call the platform's process-tracking function. On some OSes this will be a noop,
			// on others this may need to do some additional work to track the process so that
			// it can be cleaned up later.
			if trackedTask != "" && trackedTask == conf.Task.Id {
				trackProcess(conf.Task.Id, localCmd.Cmd.Process.Pid, pluginLogger)
			}

			if !self.Background {
				err = localCmd.Cmd.Wait()
			}

		} else {
			pluginLogger.LogSystem(slogger.DEBUG, "error spawning shell process: %v", err)
		}
		doneStatus <- err
	}()

	defer pluginLogger.Flush()
	select {
	case err = <-doneStatus:
		if err != nil {
			if self.ContinueOnError {
				pluginLogger.LogExecution(slogger.INFO, "(ignoring) Script finished with error: %v", err)
				return nil
			} else {
				pluginLogger.LogExecution(slogger.INFO, "Script finished with error: %v", err)
				return err
			}
		} else {
			pluginLogger.LogExecution(slogger.INFO, "Script execution complete.")
		}
	case <-stop:
		pluginLogger.LogExecution(slogger.INFO, "Got kill signal")

		// need to check command has started
		if localCmd.Cmd != nil {
			pluginLogger.LogExecution(slogger.INFO, "Stopping process: %v", localCmd.Cmd.Process.Pid)

			// try and stop the process
			if err := localCmd.Stop(); err != nil {
				pluginLogger.LogExecution(slogger.ERROR, "Error occurred stopping process: %v", err)
			}
		}

		return fmt.Errorf("Shell command interrupted.")
	}

	return nil
}