diff options
| -rw-r--r-- | nixos/modules/installer/tools/nixos-option/nixos-option.cc | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/nixos/modules/installer/tools/nixos-option/nixos-option.cc b/nixos/modules/installer/tools/nixos-option/nixos-option.cc index 58d66bad1c65..3261b263c2f2 100644 --- a/nixos/modules/installer/tools/nixos-option/nixos-option.cc +++ b/nixos/modules/installer/tools/nixos-option/nixos-option.cc @@ -402,6 +402,15 @@ void printAttr(Context & ctx, Out & out, const std::string & path, Value & root) } } +bool has_example(Context & ctx, Value & option) { + try { + findAlongAttrPath(ctx.state, "example", ctx.autoArgs, option); + return true; + } catch (Error &) { + return false; + } +} + void printOption(Context & ctx, Out & out, const std::string & path, Value & option) { out << "Value:\n"; @@ -413,8 +422,10 @@ void printOption(Context & ctx, Out & out, const std::string & path, Value & opt out << "\n\nType:\n"; printAttr(ctx, out, "type.description", option); - out << "\n\nExample:\n"; - printAttr(ctx, out, "example", option); + if (has_example(ctx, option)) { + out << "\n\nExample:\n"; + printAttr(ctx, out, "example", option); + } out << "\n\nDescription:\n"; printAttr(ctx, out, "description", option); |