Make error more specific

src/command/pack.rs

@@ -9,13 +9,14 @@ pub fn pack(path: Option<String>, log: &Logger) -> result::Result<(), Error> {
     let crate_path = set_crate_path(path);
 
     info!(&log, "Packing up the npm package...");
-    match npm::npm_pack(&crate_path) {
-        Ok(r) => Ok(r),
-        Err(Error::Io { .. }) => Err(Error::DirNotFound {
-            message: "Unable to find the pkg directory".to_owned(),
-        }),
-        Err(e) => Err(e),
-    }?;
+    npm::npm_pack(&crate_path).map_err(|e| {
+        match e {
+            Error::Io { .. } => Error::PkgNotFound {
+                message: format!("Unable to find the pkg directory at path '{}', set the path as the parent directory of the pkg directory", &crate_path),
+            },
+            e => e,
+        }
+    })?;
     #[cfg(not(target_os = "windows"))]
     info!(&log, "Your package is located at {}/pkg", &crate_path);
     #[cfg(target_os = "windows")]

src/command/publish.rs

@@ -10,13 +10,14 @@ pub fn publish(path: Option<String>, log: &Logger) -> result::Result<(), Error>
 
     info!(&log, "Publishing the npm package...");
     info!(&log, "npm info located in the npm debug log");
-    match npm::npm_publish(&crate_path) {
-        Ok(r) => Ok(r),
-        Err(Error::Io { .. }) => Err(Error::DirNotFound {
-            message: "Unable to find the pkg directory".to_owned(),
-        }),
-        Err(e) => Err(e),
-    }?;
+    npm::npm_publish(&crate_path).map_err(|e| {
+        match e {
+        Error::Io { .. } => Error::PkgNotFound {
+            message: format!("Unable to find the pkg directory at path '{}', set the path as the parent directory of the pkg directory", &crate_path),
+        },
+        e => e,
+    }
+    })?;
     info!(&log, "Published your package!");
 
     PBAR.message("💥  published your package!");

src/error.rs

@@ -18,7 +18,7 @@ pub enum Error {
     #[fail(display = "{}", message)]
     CrateConfig { message: String },
     #[fail(display = "{}", message)]
-    DirNotFound { message: String },
+    PkgNotFound { message: String },
 }
 
 impl Error {
@@ -47,7 +47,9 @@ impl Error {
             Error::CrateConfig { message: _ } => {
                 "There was a crate configuration error. Details:\n\n"
             }
-            Error::DirNotFound { message: _ } => "Unable to find the directory\n\n",
+            Error::PkgNotFound {
+                message: _,
+            } => "Unable to find the 'pgk' directory at the path, set the path as the parent of the 'pkg' directory \n\n",
         }.to_string()
     }
 }