sync: alert about unknown keys in challenge.txt

admin/sync/exercices.go

@@ -7,7 +7,9 @@ import (
 	"strconv"
 	"strings"
 
+	"github.com/BurntSushi/toml"
 	"gopkg.in/russross/blackfriday.v2"
+
 	"srs.epita.fr/fic-server/libfic"
 )
 
@@ -133,12 +135,20 @@ func BuildExercice(i Importer, theme fic.Theme, epath string, dmap *map[int64]fi
 	}
 
 	// Parse challenge.txt
-	p, err = parseExerciceParams(i, epath)
+	var md toml.MetaData
+	p, md, err = parseExerciceParams(i, epath)
 	if err != nil {
-		errs = append(errs, fmt.Sprintf("%q: challenge.txt: %s", edir, err))
+		errs = append(errs, fmt.Sprintf("%q: %s", edir, err))
 		return
 	}
 
+	// Alert about unknown keys in challenge.txt
+	if len(md.Undecoded()) > 0 {
+		for _, k := range md.Undecoded() {
+			errs = append(errs, fmt.Sprintf("%q: challenge.txt: unknown key %q found, check https://srs.nemunai.re/fic/files/challenge.html", edir, k))
+		}
+	}
+
 	if p.Gain == 0 {
 		errs = append(errs, fmt.Sprintf("%q: challenge.txt: Undefined gain for challenge", edir))
 	} else {