admin: synchronization of exercices, files, hints and keys

admin/sync/exercice_files.go

@@ -0,0 +1,49 @@
+package sync
+
+import (
+	"encoding/hex"
+	"fmt"
+	"path"
+	"strings"
+	"unicode"
+
+	"srs.epita.fr/fic-server/libfic"
+)
+
+func SyncExerciceFiles(i Importer, exercice fic.Exercice) []string {
+	var errs []string
+
+	if digs, err := getFileContent(i, path.Join(exercice.Path, "files", "DIGESTS.txt")); err != nil {
+		errs = append(errs, fmt.Sprintf("%q: unable to read DIGESTS.txt: %s", path.Base(exercice.Path), err))
+	} else if _, err := exercice.WipeFiles(); err != nil {
+		errs = append(errs, err.Error())
+	} else if files, err := i.listDir(path.Join(exercice.Path, "files")); err != nil {
+		errs = append(errs, err.Error())
+	} else {
+		// Parse DIGESTS.txt
+		digests := map[string][]byte{}
+		for nline, d := range strings.Split(digs, "\n") {
+			if dsplt := strings.SplitN(d, " ", 2); len(dsplt) != 2 {
+				errs = append(errs, fmt.Sprintf("%q: unable to parse DIGESTS.txt line %d: invalid format", path.Base(exercice.Path), nline + 1))
+				continue
+			} else if hash, err := hex.DecodeString(dsplt[0]); err != nil {
+				errs = append(errs, fmt.Sprintf("%q: unable to parse DIGESTS.txt line %d: %s", path.Base(exercice.Path), nline + 1, err))
+				continue
+			} else {
+				digests[strings.TrimLeftFunc(dsplt[1], unicode.IsSpace)] = hash
+			}
+		}
+
+		// Import files
+		for _, fname := range files {
+			if _, err := ImportFile(path.Join(exercice.Path, "files", fname),
+				func(filePath string, origin string) (interface{}, error) {
+					return exercice.ImportFile(filePath, origin, digests[fname])
+				}); err != nil {
+					errs = append(errs, fmt.Sprintf("%q: unable to import file %q: %s", path.Base(exercice.Path), fname, err))
+					continue
+				}
+		}
+	}
+	return errs
+}