env for hooks

internal/metadata/extractor_snapshot.go

@@ -0,0 +1,22 @@
+package metadata
+
+import (
+	"regexp"
+	"strings"
+)
+
+type snapshotExtractor struct {
+	re *regexp.Regexp
+}
+
+func (e snapshotExtractor) Matches(line string) bool {
+	return e.re.MatchString(line)
+}
+func (e snapshotExtractor) Extract(metadata *BackupLogMetadata, line string) {
+	// Sample line: "snapshot 917c7691 saved"
+	metadata.SnapshotID = strings.Split(line, " ")[1]
+}
+
+func NewSnapshotExtractor() MetadatExtractor {
+	return snapshotExtractor{regexp.MustCompile(`(?i)^snapshot \w+ saved`)}
+}