print-cache: Tool for printing the contents of the cache

1 files changed, 36 insertions, 0 deletions

diff --git a/tools/print-cache/print-cache.go b/tools/print-cache/print-cache.go
new file mode 100644
index 0000000..d20963a
--- /dev/null
+++ b/tools/print-cache/print-cache.go
@@ -0,0 +1,36 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+
+	"github.com/Necoro/feed2imap-go/internal/feed"
+)
+
+// flags
+var (
+	cacheFile string = "feed.cache"
+	feedId    string = ""
+)
+
+func init() {
+	flag.StringVar(&cacheFile, "c", cacheFile, "cache file")
+	flag.StringVar(&feedId, "i", feedId, "id of the feed")
+}
+
+func main() {
+	flag.Parse()
+
+	cache, err := feed.LoadCache(cacheFile)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	fmt.Printf("Cache version %d\n", cache.Version())
+	if feedId != "" {
+		fmt.Print(cache.SpecificInfo(feedId))
+	} else {
+		fmt.Print(cache.Info())
+	}
+}