From c5741f6c09e9d668beaa000d8dc829ca1d95b034 Mon Sep 17 00:00:00 2001
From: Ryan Hunt <rhunt@eqrion.net>
Date: Wed, 24 May 2017 21:21:35 -0400
Subject: [PATCH] Try and infer the binding crate name
---
src/main.rs | 19 +++++++++++++++++--
1 file changed, 17 insertions(+), 2 deletions(-)
diff --git a/src/main.rs b/src/main.rs
index 13efd15..7df04b0 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -77,8 +77,23 @@ fn main() {
}
let library = if Path::new(&input).is_dir() {
- let binding_crate = matches.value_of("crate")
- .expect("--crate is required when building bindings for a library crate.");
+ let binding_crate = match matches.value_of("crate") {
+ Some(binding_crate) => binding_crate,
+ None => {
+ // Try and guess the root crate name by looking
+ // at the directory name, it would be better to
+ // look at the Cargo.toml for this
+ match Path::new(input).parent()
+ .and_then(|x| x.file_name())
+ .and_then(|x| x.to_str()) {
+ Some(name) => name,
+ None => {
+ error!("cannot infer the name of the bindings crate. specify it with --crate");
+ return;
+ }
+ }
+ }
+ };
Library::load_crate(Path::new(input), &binding_crate, &config)
} else {
--
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