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// Copyright 2019 Nick White.
// Use of this source code is governed by the GPLv3
// license that can be found in the LICENSE file.
// trimqueue deletes any messages in a queue that match a specified
// prefix.
package main
import (
"flag"
"fmt"
"log"
"rescribe.xyz/bookpipeline"
)
const usage = `Usage: trimprefix qname prefix
trimqueue deletes any messages in a queue that match a specified
prefix.
Valid queue names:
- preprocess
- wipeonly
- ocrpage
- analyse
`
type QueuePipeliner interface {
Init() error
RemovePrefixesFromQueue(url string, prefix string) error
PreQueueId() string
WipeQueueId() string
OCRPageQueueId() string
AnalyseQueueId() string
}
func main() {
flag.Usage = func() {
fmt.Fprintf(flag.CommandLine.Output(), usage)
flag.PrintDefaults()
}
flag.Parse()
if flag.NArg() != 2 {
flag.Usage()
return
}
var conn QueuePipeliner
conn = &bookpipeline.AwsConn{Region: "eu-west-2"}
err := conn.Init()
if err != nil {
log.Fatalln("Error setting up cloud connection:", err)
}
qdetails := []struct {
id, name string
}{
{conn.PreQueueId(), "preprocess"},
{conn.WipeQueueId(), "wipeonly"},
{conn.OCRPageQueueId(), "ocrpage"},
{conn.AnalyseQueueId(), "analyse"},
}
qname := flag.Arg(0)
var qid string
for i, n := range qdetails {
if n.name == qname {
qid = qdetails[i].id
break
}
}
if qid == "" {
log.Fatalln("Error, no queue named", qname)
}
err = conn.RemovePrefixesFromQueue(qid, flag.Arg(1))
if err != nil {
log.Fatalln("Error removing prefixes from queue", qname, ":", err)
}
}
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