Add bazel, add travis

.gitignore

@@ -3,3 +3,12 @@ vendor/
 
 *.iml
 .idea/
+
+# Bazel
+bazel-bin
+bazel-genfiles
+bazel-kexpand
+bazel-out
+bazel-testlogs
+
+

.travis.yml

@@ -0,0 +1,12 @@
+language: go
+os: linux
+dist: trusty
+
+sudo: required
+
+before_script:
+     - wget "http://storage.googleapis.com/bazel-apt/pool/jdk1.8/b/bazel/bazel_0.4.0_amd64.deb"
+     - sudo dpkg --force-all -i bazel_0.4.0_amd64.deb
+
+script:
+  - make ci

BUILD

@@ -0,0 +1,8 @@
+package(default_visibility = ["//visibility:public"])
+
+licenses(["notice"])
+
+load("@io_bazel_rules_go//go:def.bzl", "go_prefix")
+
+go_prefix("github.com/kopeio/kexpand")
+

Makefile

@@ -1,3 +1,6 @@
+# TODO: Move entirely to bazel?
+.PHONY: images
+
 all: gocode
 
 DOCKER_REGISTRY=kopeio
@@ -6,24 +9,36 @@ ifndef VERSION
 endif
 
 gocode:
-	GO15VENDOREXPERIMENT=1 go install -ldflags "-X main.BuildVersion=${VERSION}" github.com/kopeio/kexpand
+	GO15VENDOREXPERIMENT=1 go install -ldflags "-X main.BuildVersion=${VERSION}" github.com/kopeio/kexpand/cmd/...
 
 gofmt:
-	gofmt -w -s main.go
 	gofmt -w -s cmd
 
+syncdeps:
+	rsync -avz _vendor/ vendor/
 
-builder-image:
-	docker build -f images/kexpand-builder/Dockerfile -t kexpand-builder .
-
-build-in-docker: builder-image
-	docker run -it -v `pwd`:/src kexpand-builder /onbuild.sh
 
-image: build-in-docker
-	docker build -t ${DOCKER_REGISTRY}/kexpand  -f images/kexpand/Dockerfile .
+# --------------------------------------------------
+# Docker images
 
-push: image
+push: images
 	docker push ${DOCKER_REGISTRY}/kexpand
 
-syncdeps:
-	rsync -avz _vendor/ vendor/
+images:
+	bazel run //images:kexpand ${DOCKER_REGISTRY}/kexpand
+
+
+# --------------------------------------------------
+# Continuous integration targets
+
+ci: images test govet
+	echo "Done"
+
+govet:
+	go vet \
+	  github.com/kopeio/kexpand/cmd/...
+
+test:
+	bazel test //...
+	#go test github.com/kopeio/kexpand/cmd/...
+

WORKSPACE

@@ -0,0 +1,61 @@
+git_repository(
+    name = "io_bazel_rules_go",
+    remote = "https://github.com/bazelbuild/rules_go.git",
+    tag = "0.3.0",
+)
+
+load("@io_bazel_rules_go//go:def.bzl", "go_repositories", "new_go_repository")
+
+go_repositories()
+
+# for building docker base images
+debs = (
+    (
+        "busybox_deb",
+        "51651980a993b02c8dc663a5539a4d83704e56c2fed93dd8d1b2580e61319af5",
+        "http://ftp.us.debian.org/debian/pool/main/b/busybox/busybox-static_1.22.0-19_amd64.deb",
+    ),
+    (
+        "libc_deb",
+        "ee4d9dea08728e2c2bbf43d819c3c7e61798245fab4b983ae910865980f791ad",
+        "http://ftp.us.debian.org/debian/pool/main/g/glibc/libc6_2.19-18+deb8u6_amd64.deb",
+    )
+)
+
+[http_file(
+    name = name,
+    sha256 = sha256,
+    url = url,
+) for name, sha256, url in debs]
+
+
+new_go_repository(
+    name = "com_github_golang_glog",
+    importpath = "github.com/golang/glog",
+    commit = "23def4e6c14b4da8ac2ed8007337bc5eb5007998",
+)
+
+new_go_repository(
+    name = "com_github_spf13_cobra",
+    importpath = "github.com/spf13/cobra",
+    commit = "dbb7c2d02e284aa24423e3e6e105969dffe6e4d6",
+)
+
+new_go_repository(
+    name = "com_github_spf13_pflag",
+    importpath = "github.com/spf13/pflag",
+    commit = "1560c1005499d61b80f865c04d39ca7505bf7f0b",
+)
+
+new_go_repository(
+    name = "com_github_ghodss_yaml",
+    importpath = "github.com/ghodss/yaml",
+    commit = "bea76d6a4713e18b7f5321a2b020738552def3ea",
+)
+
+
+new_go_repository(
+    name = "in_gopkg_yaml_v2",
+    importpath = "gopkg.in/yaml.v2",
+    commit = "a5b47d31c556af34a302ce5d659e6fea44d90de0",
+)

cmd/kexpand/BUILD

@@ -0,0 +1,21 @@
+package(default_visibility = ["//visibility:public"])
+
+licenses(["notice"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_binary",
+    "go_test",
+)
+
+go_binary(
+    name = "kexpand",
+    srcs = ["expand.go", "main.go", "root.go", "version.go"],
+    deps = [
+        "@com_github_golang_glog//:go_default_library",
+        "@com_github_ghodss_yaml//:go_default_library",
+        "@com_github_spf13_pflag//:go_default_library",
+        "@com_github_spf13_cobra//:go_default_library",
+        "//pkg/expand:go_default_library",
+    ],
+)

cmd/expand.go → cmd/kexpand/expand.go

@@ -1,16 +1,14 @@
-package cmd
+package main
 
 import (
 	"fmt"
-	"io/ioutil"
-	"os"
-	"regexp"
-	"strings"
-
-	"encoding/base64"
 	"github.com/ghodss/yaml"
 	"github.com/golang/glog"
 	"github.com/spf13/cobra"
+	"io/ioutil"
+	"os"
+	"strings"
+	"github.com/kopeio/kexpand/pkg/expand"
 )
 
 type ExpandCmd struct {
@@ -70,56 +68,9 @@ func (c *ExpandCmd) Run(args []string) error {
 		return fmt.Errorf("expected exactly one argument, a path to a file to expand")
 	}
 
-	expanded := src
-
-	{
-		// All
-		expr := `\$(\({1,2})([[:alnum:]_\.\-]+)(\|base64)?\){1,2}|(\{{2})([[:alnum:]_\.\-]+)(\|base64)?\}{2}`
-		re := regexp.MustCompile(expr)
-		expandFunction := func(match []byte) []byte {
-			re := regexp.MustCompile(expr)
-
-			matchStr := string(match[:])
-			result := re.FindStringSubmatch(matchStr)
-
-			if result[0] != matchStr {
-				glog.Fatalf("Unexpected match: %q", matchStr)
-			}
-
-			if result[2] == "" && result[5] == "" {
-				glog.Fatalf("No variable defined within: %q", matchStr)
-			}
-
-			key := result[2] + result[5]
-			replacement := values[key]
-
-			if replacement == nil {
-				err = fmt.Errorf("Key not found: %q", key)
-				return match
-			}
-
-			if (result[3] + result[6]) == "|base64" {
-				replacement = base64.StdEncoding.EncodeToString([]byte(replacement.(string)))
-			}
-
-			var s string
-			delim := result[1] + result[4]
-			switch len(delim) {
-			case 1:
-				s = fmt.Sprintf("\"%v\"", replacement)
-			case 2:
-				s = fmt.Sprintf("%v", replacement)
-			default:
-				glog.Fatalf("Unexpected delimiter %q count: %q", delim, len(delim))
-			}
-
-			return []byte(s)
-		}
-
-		expanded = re.ReplaceAllFunc(expanded, expandFunction)
-		if err != nil {
-			return err
-		}
+	expanded, err := expand.DoExpand(src, values)
+	if err != nil {
+		return err
 	}
 
 	_, err = os.Stdout.Write(expanded)

cmd/kexpand/main.go

@@ -0,0 +1,5 @@
+package main
+
+func main() {
+	Execute()
+}

cmd/root.go → cmd/kexpand/root.go

@@ -1,11 +1,10 @@
-package cmd
+package main
 
 import (
 	goflag "flag"
 	"fmt"
-	"os"
-
 	"github.com/spf13/cobra"
+	"os"
 )
 
 type RootCmd struct {

cmd/version.go → cmd/kexpand/version.go

@@ -1,4 +1,4 @@
-package cmd
+package main
 
 import (
 	"fmt"

doc.go

@@ -0,0 +1,2 @@
+// Package kexpand is the parent package for the kexpand tool
+package kexpand

images/BUILD

@@ -0,0 +1,35 @@
+package(default_visibility = ["//visibility:public"])
+
+load("@bazel_tools//tools/build_defs/docker:docker.bzl", "docker_build")
+
+docker_build(
+    name = "busybox",
+    debs = [
+        "@busybox_deb//file",
+    ],
+    symlinks = {
+        "/bin/sh": "/bin/busybox",
+        "/usr/bin/busybox": "/bin/busybox",
+        "/usr/sbin/busybox": "/bin/busybox",
+        "/sbin/busybox": "/bin/busybox",
+    },
+)
+
+docker_build(
+    name = "busybox-libc",
+    base = ":busybox",
+    debs = [
+        "@libc_deb//file",
+    ],
+)
+
+docker_build(
+    name = "kexpand",
+    base = ":busybox-libc",
+    cmd = ["/kexpand"],
+    files = [
+        "//cmd/kexpand",
+    ],
+    directory = "/usr/bin/",
+    repository = "kopeio",
+)

pkg/expand/BUILD

@@ -0,0 +1,25 @@
+package(default_visibility = ["//visibility:public"])
+
+licenses(["notice"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_library",
+    "go_test"
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "expand.go",
+    ],
+    deps = [
+        "@com_github_golang_glog//:go_default_library",
+    ],
+)
+
+go_test(
+    name = "go_default_tests",
+    srcs = ["expand_test.go"],
+    library = ":go_default_library",
+)