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-rw-r--r--cmd/rmbook/main.go87
1 files changed, 87 insertions, 0 deletions
diff --git a/cmd/rmbook/main.go b/cmd/rmbook/main.go
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--- /dev/null
+++ b/cmd/rmbook/main.go
@@ -0,0 +1,87 @@
+// Copyright 2020 Nick White.
+// Use of this source code is governed by the GPLv3
+// license that can be found in the LICENSE file.
+
+// rmbook removes a book from cloud storage.
+package main
+
+import (
+ "flag"
+ "fmt"
+ "log"
+
+ "rescribe.xyz/bookpipeline"
+)
+
+const usage = `Usage: rmbook [-dryrun] bookname
+
+Removes a book from cloud storage.
+`
+
+// null writer to enable non-verbose logging to be discarded
+type NullWriter bool
+
+func (w NullWriter) Write(p []byte) (n int, err error) {
+ return len(p), nil
+}
+
+type RmPipeliner interface {
+ MinimalInit() error
+ WIPStorageId() string
+ DeleteObjects(bucket string, keys []string) error
+ ListObjects(bucket string, prefix string) ([]string, error)
+}
+
+func main() {
+ dryrun := flag.Bool("dryrun", false, "print which files would be deleted but don't delete")
+ flag.Usage = func() {
+ fmt.Fprintf(flag.CommandLine.Output(), usage)
+ flag.PrintDefaults()
+ }
+ flag.Parse()
+
+ if flag.NArg() < 1 {
+ flag.Usage()
+ return
+ }
+
+ var n NullWriter
+ verboselog := log.New(n, "", log.LstdFlags)
+
+ var conn RmPipeliner
+ conn = &bookpipeline.AwsConn{Region: "eu-west-2", Logger: verboselog}
+
+ fmt.Println("Setting up cloud connection")
+ err := conn.MinimalInit()
+ if err != nil {
+ log.Fatalln("Error setting up cloud connection:", err)
+ }
+
+ bookname := flag.Arg(0) + "/"
+
+ fmt.Println("Getting list of files for book")
+ objs, err := conn.ListObjects(conn.WIPStorageId(), bookname)
+ if err != nil {
+ log.Fatalln("Error in listing book items:", err)
+ }
+
+ if len(objs) == 0 {
+ log.Fatalln("No files found for book:", bookname)
+ }
+
+ if *dryrun {
+ fmt.Printf("I would delete these files:\n")
+ for _, v := range objs {
+ fmt.Println(v)
+ }
+ return
+ }
+
+ fmt.Println("Deleting all files for book")
+ err = conn.DeleteObjects(conn.WIPStorageId(), objs)
+ if err != nil {
+ log.Fatalln("Error deleting book files:", err)
+ }
+
+ fmt.Println("Finished deleting files")
+}