Merge branch 'master' into fix/222-robust-paths-wip

Signed-off-by: Javier Romero <[email protected]>

CODEOWNERS

@@ -0,0 +1 @@
+* @buildpacks/implementation-maintainers

Makefile

@@ -74,9 +74,14 @@ format: install-goimports
 	@echo "> Formating code..."
 	test -z $$(goimports -l -w -local github.com/buildpacks/lifecycle $$(find . -type f -name '*.go' -not -path "*/vendor/*"))
 
+verify-jq:
+ifeq (, $(shell which jq))
+	$(error "No jq in $$PATH, please install jq")
+endif
+
 test: unit acceptance
 
-unit: format lint install-yj
+unit: verify-jq format lint install-yj
 	@echo "> Running unit tests..."
 	$(GOTEST) -v -count=1 ./...
 
@@ -91,3 +96,5 @@ clean:
 package: descriptor
 	@echo "> Packaging lifecycle..."
 	tar czf ./out/$(ARCHIVE_NAME).tgz -C out lifecycle.toml lifecycle
+
+.PHONY: verify-jq

README.md

@@ -3,38 +3,30 @@
 [![Build Status](https://travis-ci.org/buildpacks/lifecycle.svg?branch=master)](https://travis-ci.org/buildpack/lifecycle)
 [![GoDoc](https://godoc.org/github.com/buildpacks/lifecycle?status.svg)](https://godoc.org/github.com/buildpacks/lifecycle)
 
-A reference implementation of [Buildpack API v3](https://github.com/buildpacks/spec).
+A reference implementation of the [Cloud Native Buildpacks specification](https://github.com/buildpacks/spec).
+
+This lifecycle implements the following versioned APIs
+* Buildpack API 0.2 - excluding [/bin/develop](https://github.com/buildpacks/spec/blob/master/buildpack.md#development) and [store.toml](https://github.com/buildpacks/spec/blob/master/buildpack.md#storetoml-toml)
+* Platform API 0.2
 
 ## Commands
 
 ### Build
 
 * `detector` - chooses buildpacks (via `/bin/detect`)
 * `analyzer` - restores launch layer metadata from the previous build
+* `restorer` - restores cache
 * `builder` -  executes buildpacks (via `/bin/build`)
-* `exporter` - remotely patches images with new layers (via rebase & append)
-* `launcher` - invokes choice of process
+* `exporter` - creates image and stores cache
 
-### Develop
+### Run
 
-* `detector` - chooses buildpacks (via `/bin/detect`)
-* `developer` - executes buildpacks (via `/bin/develop`)
 * `launcher` - invokes choice of process
 
-### Cache
-
-* `restorer` - restores cache
-* `cacher` - updates cache
-
 ### Rebase
 
 * `rebaser` - remotely patches images with new base image
 
-## Notes
-
-Cache implementations (`restorer` and `cacher`) are intended to be interchangeable and platform-specific.
-A platform may choose not to deduplicate cache layers.
-
 ## Development
 To test, build, and package binaries into an archive, simply run: