icns

commit 439e61a508660c5e2b595d9458bfd9489faf06fb
parent 5519ecdd0cf713a5d9d8288ea5cea4e6d987a511
Author: Jack Mordaunt <jackmordaunt.dev@gmail.com>
Date:   Tue, 29 Oct 2024 12:10:22 +0800

cmd/icnsify: probe icns prior to decode

Output the content of the icns prior to decode. This will help explain
any issues to caller by revealing unsupported file types.

Signed-off-by: Jack Mordaunt <jackmordaunt.dev@gmail.com>

Diffstat:
M
cmd/icnsify/main.go
 | 
17
+++++++++++++++++

1 file changed, 17 insertions(+), 0 deletions(-)
diff --git a/cmd/icnsify/main.go b/cmd/icnsify/main.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"bytes"
 	"image"
 	"image/jpeg"
 	"image/png"
@@ -70,6 +71,22 @@ func main() {
 		defer outputf.Close()
 		output = outputf
 	}
+	if filepath.Ext(*inputPath) == ".icns" {
+		by, err := io.ReadAll(input)
+		if err != nil {
+			slog.Error("probing file: reading file", "err", err)
+			return
+		}
+		icons, err := icns.Probe(bytes.NewReader(by))
+		if err != nil {
+			slog.Error("probing file", "err", err)
+			return
+		}
+		for _, icon := range icons {
+			slog.Info("found", "icon", icon)
+		}
+		input = bytes.NewReader(by)
+	}
 	img, format, err := image.Decode(input)
 	if err != nil {
 		slog.Error("decoding input", "err", err)