blob: aa0f4f0c87c97fe61a346db6ed9a54794894994a [file] [log] [blame]
// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package upload
import (
"bytes"
"net/http"
"os"
"path/filepath"
"regexp"
"strings"
"time"
)
var (
dateRE = regexp.MustCompile(`(\d\d\d\d-\d\d-\d\d)[.]json$`)
dateFormat = "2006-01-02"
// TODO(rfindley): use dateFormat throughout.
)
// uploadReportDate returns the date component of the upload file name, or "" if the
// date was unmatched.
func (u *uploader) uploadReportDate(fname string) time.Time {
match := dateRE.FindStringSubmatch(fname)
if match == nil || len(match) < 2 {
u.logger.Printf("malformed report name: missing date: %q", filepath.Base(fname))
return time.Time{}
}
d, err := time.Parse(dateFormat, match[1])
if err != nil {
u.logger.Printf("malformed report name: bad date: %q", filepath.Base(fname))
return time.Time{}
}
return d
}
func (u *uploader) uploadReport(fname string) {
thisInstant := u.startTime
// TODO(rfindley): use uploadReportDate here, once we've done a gopls release.
// first make sure it is not in the future
today := thisInstant.Format("2006-01-02")
match := dateRE.FindStringSubmatch(fname)
if match == nil || len(match) < 2 {
u.logger.Printf("Report name %q missing date", filepath.Base(fname))
} else if match[1] > today {
u.logger.Printf("Report date for %q is later than today (%s)", filepath.Base(fname), today)
return // report is in the future, which shouldn't happen
}
buf, err := os.ReadFile(fname)
if err != nil {
u.logger.Printf("%v reading %s", err, fname)
return
}
if u.uploadReportContents(fname, buf) {
// anything left to do?
}
}
// try to upload the report, 'true' if successful
func (u *uploader) uploadReportContents(fname string, buf []byte) bool {
fdate := strings.TrimSuffix(filepath.Base(fname), ".json")
fdate = fdate[len(fdate)-len("2006-01-02"):]
newname := filepath.Join(u.dir.UploadDir(), fdate+".json")
// Lock the upload, to prevent duplicate uploads.
{
lockname := newname + ".lock"
lockfile, err := os.OpenFile(lockname, os.O_CREATE|os.O_EXCL, 0666)
if err != nil {
u.logger.Printf("Failed to acquire lock %s: %v", lockname, err)
return false
}
_ = lockfile.Close()
defer os.Remove(lockname)
}
if _, err := os.Stat(newname); err == nil {
// Another process uploaded but failed to clean up (or hasn't yet cleaned
// up). Ensure that cleanup occurs.
u.logger.Printf("After acquire: report already uploaded")
_ = os.Remove(fname)
return false
}
endpoint := u.uploadServerURL + "/" + fdate
b := bytes.NewReader(buf)
resp, err := http.Post(endpoint, "application/json", b)
if err != nil {
u.logger.Printf("Error upload %s to %s: %v", filepath.Base(fname), endpoint, err)
return false
}
// hope for a 200, remove file on a 4xx, otherwise it will be retried by another process
if resp.StatusCode != 200 {
u.logger.Printf("Failed to upload %s to %s: %s", filepath.Base(fname), endpoint, resp.Status)
if resp.StatusCode >= 400 && resp.StatusCode < 500 {
err := os.Remove(fname)
if err == nil {
u.logger.Printf("Removed local/%s", filepath.Base(fname))
} else {
u.logger.Printf("Error removing local/%s: %v", filepath.Base(fname), err)
}
}
return false
}
// Store a copy of the uploaded report in the uploaded directory.
if err := os.WriteFile(newname, buf, 0644); err == nil {
os.Remove(fname) // if it exists
}
u.logger.Printf("Uploaded %s to %q", fdate+".json", endpoint)
return true
}