find binary from PATH

CHANGELOG.md

@@ -1,3 +1,9 @@
+# 0.3.3
+
+* find docker binary from path
+  + was fixed to `/usr/bin/docker`
+  + resolve errors on macOS and other platforms
+
 # 0.3.2
 
 * add `--no-build` option

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 authors = ["Sunrin SHIMURA (keen) <[email protected]>"]
 name = "cargo-pack-docker"
-version = "0.3.2"
+version = "0.3.3"
 description = "pack artifacts into a docker image"
 repository = "https://github.com/KeenS/cargo-pack-docker"
 license = "MIT/Apache-2.0"
@@ -23,3 +23,4 @@ cargo-pack = "0.4.0"
 serde_derive = "1.0.28"
 failure = "0.1.1"
 failure_derive = "0.1.1"
+which = "2.0.0"

src/docker.rs

@@ -157,7 +157,8 @@ impl<'cfg> Docker<'cfg> {
     fn build<P: AsRef<Path>>(&self, path: P, pack_docker: &PackDocker) -> Result<()> {
         let image_tag = pack_docker.tag(self)?;
         // FIXME: take from user
-        let status = Command::new("/usr/bin/docker")
+        let dockerbin = ::which::which("/usr/bin/docker")?;
+        let status = Command::new(dockerbin)
             .current_dir(&path)
             .arg("build")
             .arg(path.as_ref().to_str().unwrap())

src/lib.rs

@@ -14,6 +14,7 @@ extern crate tempdir;
 extern crate failure;
 #[macro_use]
 extern crate failure_derive;
+extern crate which;
 
 mod docker;
 pub use docker::*;