chore: migrate to go modules

vendor/github.com/Clever/gitsem/.drone.yml

@@ -0,0 +1,24 @@
+image: bradrydzewski/go:1.3
+script:
+  - make test
+notify:
+  email:
+    recipients:
+      - drone@clever.com
+  hipchat:
+    room: Clever-Dev-CI
+    token: {{hipchat_token}}
+    on_started: true
+    on_success: true
+    on_failure: true
+publish:
+  github:
+    branch: master
+    script:
+      - make release
+    artifacts:
+      - release
+    tag: v$(cat VERSION)
+    token: {{github_token}}
+    user: Clever
+    repo: gitsem

vendor/github.com/Clever/gitsem/.gitignore

@@ -0,0 +1,25 @@
+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
+*.test
+
+gitsem

vendor/github.com/Clever/gitsem/Makefile

@@ -0,0 +1,54 @@
+SHELL := /bin/bash
+PKG = github.com/Clever/gitsem
+PKGS = $(PKG)
+VERSION := $(shell cat VERSION)
+EXECUTABLE := gitsem
+BUILDS := \
+	build/$(EXECUTABLE)-v$(VERSION)-darwin-amd64 \
+	build/$(EXECUTABLE)-v$(VERSION)-linux-amd64 \
+	build/$(EXECUTABLE)-v$(VERSION)-windows-amd64
+COMPRESSED_BUILDS := $(BUILDS:%=%.tar.gz)
+RELEASE_ARTIFACTS := $(COMPRESSED_BUILDS:build/%=release/%)
+
+.PHONY: test golint
+
+golint:
+	@go get github.com/golang/lint/golint
+
+test: $(PKGS)
+
+$(PKGS): golint
+	@go get -d -t $@
+	@gofmt -w=true $(GOPATH)/src/$@*/**.go
+ifneq ($(NOLINT),1)
+	@echo "LINTING..."
+	@PATH=$(PATH):$(GOPATH)/bin golint $(GOPATH)/src/$@*/**.go
+	@echo ""
+endif
+ifeq ($(COVERAGE),1)
+	@go test -cover -coverprofile=$(GOPATH)/src/$@/c.out $@ -test.v
+	@go tool cover -html=$(GOPATH)/src/$@/c.out
+else
+	@echo "TESTING..."
+	@go test $@ -test.v
+endif
+
+run:
+	@go run main.go
+
+build/$(EXECUTABLE)-v$(VERSION)-darwin-amd64:
+	GOARCH=amd64 GOOS=darwin go build -o "$@/$(EXECUTABLE)"
+build/$(EXECUTABLE)-v$(VERSION)-linux-amd64:
+	GOARCH=amd64 GOOS=linux go build -o "$@/$(EXECUTABLE)"
+build/$(EXECUTABLE)-v$(VERSION)-windows-amd64:
+	GOARCH=amd64 GOOS=windows go build -o "$@/$(EXECUTABLE).exe"
+build: $(BUILDS)
+%.tar.gz: %
+	tar -C `dirname $<` -zcvf "$<.tar.gz" `basename $<`
+$(RELEASE_ARTIFACTS): release/% : build/%
+	mkdir -p release
+	cp $< $@
+release: $(RELEASE_ARTIFACTS)
+
+clean:
+	rm -rf build release

vendor/github.com/Clever/gitsem/README.md

@@ -0,0 +1,34 @@
+# gitsem
+
+A command line utility for managing semantically versioned (semver) git tags.
+
+Run this in a git repository to bump the version and write the new data back to the VERSION file.
+It will also create a version commit and (optional) tag, and fail if the repo is not clean.
+
+## Installation
+
+```shell
+$ go get github.com/Clever/gitsem
+```
+
+## Example
+```shell
+$ gitsem patch
+$ gitsem -m "Upgrade to %s for reasons" patch
+$ gitsem minor
+```
+
+## Usage
+
+```shell
+gitsem [options] version
+```
+
+`version` can be one of: `newversion | patch | minor | major`
+
+The version argument should be a valid semver string, or a field of a semver string (one of "patch", "minor", or "major").
+In the second case, the existing version will be incremented by 1 in the specified field.
+
+### Options
+  - `m=%s` specifies a commit message to use when bumping the version. If %s appears, it will be replaced with the new version number.
+  - `tag=true` whether or not to create a tag at the version commit

vendor/github.com/Clever/gitsem/VERSION

@@ -0,0 +1 @@
+1.0.4

vendor/github.com/Clever/gitsem/git.go

@@ -0,0 +1,39 @@
+package main
+
+import (
+	"bytes"
+	"os/exec"
+	"strings"
+)
+
+func isRepoClean() (bool, error) {
+	cmd := exec.Command("git", "status", "-s")
+	result := &bytes.Buffer{}
+	cmd.Stdout = result
+	if err := cmd.Run(); err != nil {
+		return false, err
+	}
+	return result.String() == "", nil
+}
+
+func repoRoot() (string, error) {
+	cmd := exec.Command("git", "rev-parse", "--show-toplevel")
+	result := &bytes.Buffer{}
+	cmd.Stdout = result
+	if err := cmd.Run(); err != nil {
+		return "", err
+	}
+	return strings.TrimSpace(result.String()), nil
+}
+
+func addFile(path string) error {
+	return exec.Command("git", "add", path).Run()
+}
+
+func commit(message string) error {
+	return exec.Command("git", "commit", "-m", message).Run()
+}
+
+func tag(version string) error {
+	return exec.Command("git", "tag", version).Run()
+}

vendor/github.com/Clever/gitsem/main.go

@@ -0,0 +1,126 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"gopkg.in/blang/semver.v1"
+	"io/ioutil"
+	"log"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+func commitMessage(message, version string) string {
+	if strings.Contains(message, "%s") {
+		return fmt.Sprintf(message, version)
+	}
+	return message
+}
+
+func getCurrentVersion(path string) (*semver.Version, error) {
+	if _, err := os.Stat(path); os.IsNotExist(err) {
+		return &semver.Version{}, nil
+	}
+	contents, err := ioutil.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+	return semver.New(strings.TrimSpace(string(contents)))
+}
+
+const versionFileName = "VERSION"
+
+func exitWithError(message string) {
+	fmt.Fprintf(os.Stderr, message+"\n\n")
+	flag.Usage()
+	os.Exit(1)
+}
+
+func bump(old *semver.Version, part string) *semver.Version {
+	// We don't want to mutate the input, but there's no Clone or Copy method on a semver.Version,
+	// so we make a new one by parsing the string version of the old one.
+	// We ignore any errors because we know it's valid semver.
+	new, _ := semver.New(old.String())
+	switch part {
+	case "major":
+		new.Major++
+		new.Minor = 0
+		new.Patch = 0
+	case "minor":
+		new.Minor++
+		new.Patch = 0
+	case "patch":
+		new.Patch++
+	}
+	return new
+}
+
+func main() {
+	flag.Usage = func() {
+		fmt.Fprintf(os.Stderr, "Usage of %s: [options] version\n\n", os.Args[0])
+		fmt.Fprintf(os.Stderr, "version can be one of: newversion | patch | minor | major\n\n")
+		fmt.Fprintf(os.Stderr, "options:\n")
+		flag.PrintDefaults()
+	}
+	message := flag.String("m", "%s", "commit message for version commit")
+	help := flag.Bool("h", false, "print usage and exit")
+	shouldTag := flag.Bool("tag", true, "whether or not to make a tag at the version commit")
+	flag.Parse()
+
+	if *help {
+		flag.Usage()
+		os.Exit(0)
+	}
+
+	if *message == "" {
+		exitWithError("missing message")
+	}
+
+	if clean, err := isRepoClean(); err != nil {
+		log.Fatal(err)
+	} else if !clean {
+		log.Fatal("repo isn't clean")
+	}
+
+	root, err := repoRoot()
+	if err != nil {
+		log.Fatal(err)
+	}
+	versionFile := filepath.Join(root, versionFileName)
+	version, err := getCurrentVersion(versionFile)
+	if err != nil {
+		log.Fatal(err)
+	}
+	if len(flag.Args()) != 1 {
+		exitWithError("gitsem takes exactly one non-flag argument: version")
+	}
+
+	newVersion := flag.Args()[0]
+	switch newVersion {
+	case "patch", "minor", "major":
+		version = bump(version, newVersion)
+	default:
+		if version, err = semver.New(newVersion); err != nil {
+			log.Fatalf("failed to parse %s as semver: %s", newVersion, err.Error())
+		}
+	}
+
+	if err := ioutil.WriteFile(versionFile, []byte(version.String()), 0666); err != nil {
+		log.Fatal(err)
+	}
+	if err := addFile(versionFile); err != nil {
+		log.Fatal(err)
+	}
+	versionString := "v" + version.String()
+	*message = commitMessage(*message, versionString)
+	if err := commit(*message); err != nil {
+		log.Fatal(err)
+	}
+	if *shouldTag {
+		if err := tag(versionString); err != nil {
+			log.Fatal(err)
+		}
+	}
+	fmt.Println(versionString)
+}