worker: move shared code to lib

Avoid importing code from worker/lib into lib. It should only be the
other way around. Move the message parsing code used by maildir,
notmuch, mbox and the eml viewer into a lib/rfc822 package.

Adapt imports accordingly.

Signed-off-by: Robin Jarry <robin@jarry.cc>
Reviewed-by: Koni Marti <koni.marti@gmail.com>
Tested-by: Moritz Poldrack <moritz@poldrack.dev>
Tested-by: Inwit <inwit@sindominio.net>

1 files changed, 15 insertions, 0 deletions

diff --git a/worker/lib/size.go b/worker/lib/size.go
new file mode 100644
index 00000000..f00437c3
--- /dev/null
+++ b/worker/lib/size.go
@@ -0,0 +1,15 @@
+package lib
+
+import (
+	"fmt"
+	"os"
+)
+
+// FileSize returns the size of the file specified by name
+func FileSize(name string) (uint32, error) {
+	fileInfo, err := os.Stat(name)
+	if err != nil {
+		return 0, fmt.Errorf("failed to obtain fileinfo: %w", err)
+	}
+	return uint32(fileInfo.Size()), nil
+}