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More consistent use of uploader sums

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This commit is contained in:
Philip O'Toole
2024-01-11 17:51:25 -05:00
parent e96ec7bb27
commit f9ac68387c
1 changed files with 10 additions and 3 deletions
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13
auto/backup/uploader.go
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@@ -1,7 +1,6 @@
package backup
import (
"bytes"
"compress/gzip"
"context"
"expvar"
@@ -186,11 +185,11 @@ func (u *Uploader) upload(ctx context.Context) error {
if u.lastModified.IsZero() {
// No "last modified" time, so this must be the first upload since this
// uploader started. Double-check that we really need to upload.
cloudSum, err := u.storageClient.CurrentSum(ctx)
cloudSum, err := u.currentSum(ctx)
if err != nil {
stats.Add(numSumGetFail, 1)
u.logger.Printf("failed to get current sum from %s: %v", u.storageClient, err)
} else if err == nil && bytes.Equal(cloudSum, filesum) {
} else if err == nil && filesum.Equals(cloudSum) {
stats.Add(numUploadsSkippedSum, 1)
return nil
}
@@ -214,6 +213,14 @@ func (u *Uploader) upload(ctx context.Context) error {
return err
}
func (u *Uploader) currentSum(ctx context.Context) (SHA256Sum, error) {
s, err := u.storageClient.CurrentSum(ctx)
if err != nil {
return nil, err
}
return SHA256Sum(s), nil
}
func (u *Uploader) compressIfNeeded(path string) error {
if !u.compress {
return nil