explicit bin option

.dockerignore

@@ -0,0 +1 @@
+tests

.gitignore

@@ -0,0 +1,2 @@
+tests/test-func/test-out.log
+target

.travis.yml

@@ -11,4 +11,4 @@ services:
   - docker
 
 script:
-  make build
+  make test

CHANGELOG.md

@@ -1,15 +1,16 @@
 #  0.2.0-rust-1.32.0
 
 * Upgrade to Rust [`1.32.0`](https://blog.rust-lang.org/2019/01/17/Rust-1.32.0.html)
+* Add support to provide an explicit binary to package though `BIN` env variable
 
 # 0.2.0-rust-1.31.1
 
-* Upgrade to Rust [`1.13.1`](https://blog.rust-lang.org/2018/12/20/Rust-1.31.1.html)
+* Upgrade to Rust [`1.31.1`](https://blog.rust-lang.org/2018/12/20/Rust-1.31.1.html)
 
 # 0.2.0-rust-1.31.0
 
 * Breaking change: move to now officially supported `provided` runtime
-* Upgrade to Rust `1.13.0`, enabling the first stable version `2018 edition` Rust.
+* Upgrade to Rust `1.31.0`, enabling the first stable version `2018 edition` Rust.
 
 # 0.1.*
 

Makefile

@@ -4,9 +4,12 @@ REPO ?= softprops/lambda-rust
 TAG ?= "$(REPO):$(VERSION)-rust-$(RUST_VERSION)"
 
 publish: build
-	docker push $(TAG)
-	docker push $(REPO):latest
+	@docker push $(TAG)
+	@docker push $(REPO):latest
 
 build:
-	docker build --build-arg RUST_VERSION=$(RUST_VERSION) -t $(TAG) .
-	docker tag $(TAG) $(REPO):latest
+	@docker build --build-arg RUST_VERSION=$(RUST_VERSION) -t $(TAG) .
+	@docker tag $(TAG) $(REPO):latest
+
+test: build
+	@tests/test.sh

README.md

@@ -1,4 +1,4 @@
-# AWS Lambda [Rust](https://www.rust-lang.org/) docker builder 🐑 🐳 🦀
+# AWS Lambda [Rust](https://www.rust-lang.org/) docker builder 🐑 🐳 🦀 [![Build Status](https://travis-ci.org/softprops/lambda-rust.svg?branch=master)](https://travis-ci.org/softprops/lambda-rust)
 
 ## 🤔 about
 
@@ -37,6 +37,18 @@ $ docker run --rm \
 
 > 💡 The -v (volume mount) flags for `/root/.cargo/{registry,git}` are optional but when supplied, provides a much faster turn around when doing iterative development
 
+If you are using Windows, the command above may need to be modified to include
+a `BIN` environment variable set to the name of the binary to be build and packaged
+
+```sh
+$ docker run --rm \
+    -e BIN={your-binary-name} \
+    -v ${PWD}:/code \
+    -v ${HOME}/.cargo/registry:/root/.cargo/registry \
+    -v ${HOME}/.cargo/git:/root/.cargo/git \
+    softprops/lambda-rust
+```
+
 ## 🔬 local testing
 
 Once you've built a Rust lambda function artifact, the `provided` runtime expects

build.sh

@@ -2,7 +2,7 @@
 # build and pack a rust lambda library
 # https://aws.amazon.com/blogs/opensource/rust-runtime-for-aws-lambda/
 
-set -euo pipefail
+set -eo pipefail
 mkdir -p target/lambda
 export CARGO_TARGET_DIR=$PWD/target/lambda
 (
@@ -13,17 +13,24 @@ export CARGO_TARGET_DIR=$PWD/target/lambda
     . $HOME/.cargo/env
     cargo build ${CARGO_FLAGS:-} --release
 ) 1>&2
+
+function package() {
+    file="$1"
+    strip "$file"
+    rm "$file.zip" > 2&>/dev/null || true
+    # note: would use printf "@ $(basename $file)\n@=bootstrap" | zipnote -w "$file.zip"
+    # if not for https://bugs.launchpad.net/ubuntu/+source/zip/+bug/519611
+    mv "$file" bootstrap
+    zip "$file.zip" bootstrap
+    rm bootstrap
+}
+
 cd "$CARGO_TARGET_DIR"/release
 (
-    for file in $(
-      find -maxdepth 1 -executable -type f
-    ); do
-        strip "$file"
-        rm "$file.zip" > 2&>/dev/null || true
-        # note: would use printf "@ $(basename $file)\n@=bootstrap" | zipnote -w "$file.zip"
-        # if not for https://bugs.launchpad.net/ubuntu/+source/zip/+bug/519611
-        mv "$file" bootstrap
-        zip "$file.zip" bootstrap
-        rm bootstrap
-    done
+    if [ -z "$BIN" ]; then
+        find -maxdepth 1 -executable -type f -exec package {} \;
+    else
+        package "$BIN"
+    fi
+
 ) 1>&2