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package main
import (
"bufio"
"flag"
"fmt"
"log"
"os"
"path/filepath"
"rescribe.xyz/bookpipeline"
)
const usage = `Usage: getpipelinebook [-a] [-c] [-v] bookname
Downloads the pipeline results for a book.
By default this downloads the best hOCR version for each page, the
binarised and (if available) colour PDF, and the best, conf and
graph.png analysis files.
`
// 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 Pipeliner interface {
Init() error
ListObjects(bucket string, prefix string) ([]string, error)
Download(bucket string, key string, fn string) error
Upload(bucket string, key string, path string) error
CheckQueue(url string, timeout int64) (bookpipeline.Qmsg, error)
AddToQueue(url string, msg string) error
DelFromQueue(url string, handle string) error
WIPStorageId() string
}
func main() {
all := flag.Bool("a", false, "Get all files for book")
verbose := flag.Bool("v", false, "Verbose")
flag.Usage = func() {
fmt.Fprintf(flag.CommandLine.Output(), usage)
flag.PrintDefaults()
}
flag.Parse()
if flag.NArg() < 1 {
flag.Usage()
return
}
var verboselog *log.Logger
if *verbose {
verboselog = log.New(os.Stdout, "", log.LstdFlags)
} else {
var n NullWriter
verboselog = log.New(n, "", log.LstdFlags)
}
var conn Pipeliner
conn = &bookpipeline.AwsConn{Region: "eu-west-2", Logger: verboselog}
verboselog.Println("Setting up AWS session")
err := conn.Init()
if err != nil {
log.Fatalln("Error setting up cloud connection:", err)
}
verboselog.Println("Finished setting up AWS session")
bookname := flag.Arg(0)
err = os.MkdirAll(bookname, 0755)
if err != nil {
log.Fatalln("Failed to create directory", bookname, err)
}
if *all {
verboselog.Println("Downloading all files for", bookname)
objs, err := conn.ListObjects(conn.WIPStorageId(), bookname)
if err != nil {
log.Fatalln("Failed to get list of files for book", bookname, err)
}
for _, i := range objs {
verboselog.Println("Downloading", i)
err = conn.Download(conn.WIPStorageId(), i, i)
if err != nil {
log.Fatalln("Failed to download file", i, err)
}
}
return
}
verboselog.Println("Downloading best file")
fn := filepath.Join(bookname, "best")
err = conn.Download(conn.WIPStorageId(), fn, fn)
if err != nil {
log.Fatalln("Failed to download 'best' file", err)
}
f, err := os.Open(fn)
if err != nil {
log.Fatalln("Failed to open best file", err)
}
defer f.Close()
verboselog.Println("Downloading HOCR files")
s := bufio.NewScanner(f)
for s.Scan() {
fn = filepath.Join(bookname, s.Text())
verboselog.Println("Downloading file", fn)
err = conn.Download(conn.WIPStorageId(), fn, fn)
if err != nil {
log.Fatalln("Failed to download file", fn, err)
}
}
verboselog.Println("Downloading PDF files")
fn = filepath.Join(bookname, bookname + ".colour.pdf")
verboselog.Println("Downloading file", fn)
err = conn.Download(conn.WIPStorageId(), fn, fn)
if err != nil {
log.Println("Failed to download %s: %s", fn, err)
}
fn = filepath.Join(bookname, bookname + ".binarised.pdf")
verboselog.Println("Downloading file", fn)
err = conn.Download(conn.WIPStorageId(), fn, fn)
if err != nil {
log.Println("Failed to download %s: %s", fn, err)
}
analyses := []string{"conf", "graph.png"}
verboselog.Println("Downloading analysis files")
for _, a := range analyses {
fn = filepath.Join(bookname, a)
verboselog.Println("Downloading file", fn)
err = conn.Download(conn.WIPStorageId(), fn, fn)
if err != nil {
log.Fatalln("Failed to download file", fn, err)
}
}
}
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