From 345b99cc0cf96b2cd9dc2952acbd8d5729763a87 Mon Sep 17 00:00:00 2001
From: "Jip J. Dekker" <jip@dekker.li>
Date: Sun, 2 Oct 2016 02:25:11 +0200
Subject: [PATCH] Adds clean command

---
 cmd/clean.go      | 37 +++++++++++++++++++++++
 compiler/clean.go | 76 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 113 insertions(+)
 create mode 100644 cmd/clean.go
 create mode 100644 compiler/clean.go

diff --git a/cmd/clean.go b/cmd/clean.go
new file mode 100644
index 0000000..21ae8f3
--- /dev/null
+++ b/cmd/clean.go
@@ -0,0 +1,37 @@
+// Copyright © 2016 Jip J. Dekker <jip@dekker.li>
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"github.com/jjdekker/ponder/compiler"
+	"github.com/spf13/cobra"
+)
+
+// cleanCommand represents the cleaning command
+var cleanCommand = &cobra.Command{
+	Use:   "clean",
+	Short: "Remove all ponder generated files.",
+	Long: `The cleaning command removes all item generated by Ponder according to
+the target definition. Items removed by the cleaning command will be removed
+from the file system, use with care.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		path, opts := getSettings()
+		compiler.Clean(path, opts)
+	},
+}
+
+func init() {
+	RootCmd.AddCommand(cleanCommand)
+}
diff --git a/compiler/clean.go b/compiler/clean.go
new file mode 100644
index 0000000..187f641
--- /dev/null
+++ b/compiler/clean.go
@@ -0,0 +1,76 @@
+// Copyright © 2016 Jip J. Dekker <jip@dekker.li>
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package compiler
+
+import (
+	"os"
+	"path/filepath"
+
+	log "github.com/Sirupsen/logrus"
+	"github.com/jjdekker/ponder/helpers"
+	"github.com/jjdekker/ponder/settings"
+)
+
+// Clean removes all files generated by the CompileDir and MakeBook commands.
+func Clean(path string, opts *settings.Settings) {
+	// Find all scores
+	collector := generateScores()
+	filepath.Walk(path, compilePath(path, opts, collector))
+
+	// Remove score files
+	for i := range scores {
+		scores[i].GenerateOutputPath(opts)
+		if helpers.Exists(scores[i].OutputPath) {
+			if err := os.Remove(scores[i].OutputPath); err != nil {
+				log.WithFields(log.Fields{
+					"error": err,
+					"score": scores[i],
+				}).Error("unable to delete file")
+			}
+		}
+	}
+
+	// Remove LaTeX resources
+	texPath := filepath.Join(opts.OutputDir, opts.Name+".tex")
+	if helpers.Exists(texPath) {
+		if err := os.Remove(texPath); err != nil {
+			log.WithFields(log.Fields{
+				"error": err,
+				"file":  texPath,
+			}).Error("unable to delete file")
+		}
+	}
+	for i := range opts.LatexResources {
+		path := filepath.Join(opts.OutputDir, filepath.Base(opts.LatexResources[i]))
+		err := os.RemoveAll(path)
+		if err != nil {
+			log.WithFields(log.Fields{
+				"error":    err,
+				"resource": path,
+			}).Error("unable to delete file")
+		}
+	}
+
+	// Remove target songbook
+	songbookPath := filepath.Join(opts.OutputDir, opts.Name+".pdf")
+	if helpers.Exists(songbookPath) {
+		if err := os.Remove(songbookPath); err != nil {
+			log.WithFields(log.Fields{
+				"error":    err,
+				"songbook": songbookPath,
+			}).Error("unable to delete file")
+		}
+	}
+}