add the ability to specify repository ref

internal/translations/default.pot

@@ -413,19 +413,19 @@ msgstr ""
 msgid "Executing %s()"
 msgstr ""
 
-#: pkg/repos/pull.go:79
+#: pkg/repos/pull.go:80
 msgid "Pulling repository"
 msgstr ""
 
-#: pkg/repos/pull.go:103
+#: pkg/repos/pull.go:116
 msgid "Repository up to date"
 msgstr ""
 
-#: pkg/repos/pull.go:160
+#: pkg/repos/pull.go:207
 msgid "Git repository does not appear to be a valid ALR repo"
 msgstr ""
 
-#: pkg/repos/pull.go:176
+#: pkg/repos/pull.go:223
 msgid ""
 "ALR repo's minimum ALR version is greater than the current version. Try "
 "updating ALR if something doesn't work."

internal/translations/po/ru/default.po

@@ -425,19 +425,19 @@ msgstr "Выполнение build()"
 msgid "Executing %s()"
 msgstr "Выполнение %s()"
 
-#: pkg/repos/pull.go:79
+#: pkg/repos/pull.go:80
 msgid "Pulling repository"
 msgstr "Скачивание репозитория"
 
-#: pkg/repos/pull.go:103
+#: pkg/repos/pull.go:116
 msgid "Repository up to date"
 msgstr "Репозиторий уже обновлён"
 
-#: pkg/repos/pull.go:160
+#: pkg/repos/pull.go:207
 msgid "Git repository does not appear to be a valid ALR repo"
 msgstr "Репозиторий Git не поддерживается репозиторием ALR"
 
-#: pkg/repos/pull.go:176
+#: pkg/repos/pull.go:223
 msgid ""
 "ALR repo's minimum ALR version is greater than the current version. Try "
 "updating ALR if something doesn't work."

internal/types/config.go

@@ -34,4 +34,5 @@ type Config struct {
 type Repo struct {
 	Name string `toml:"name"`
 	URL  string `toml:"url"`
+	Ref  string `toml:"ref"`
 }