From b63b1ef8c7571163b744e840e7b37012245eb649 Mon Sep 17 00:00:00 2001
From: Denis Vaumoron <dvaumoron@gmail.com>
Date: Fri, 31 May 2024 22:14:02 +0200
Subject: [PATCH] prepare first release

---
 .gitignore               |  2 ++
 .goreleaser.yaml         | 75 ++++++++++++++++++++++++++++++++++++++++
 README.md                | 37 ++++++++++++++++++++
 pkg/goversion/version.go |  2 +-
 4 files changed, 115 insertions(+), 1 deletion(-)
 create mode 100644 .goreleaser.yaml

diff --git a/.gitignore b/.gitignore
index cab4aa5..58122b8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
 # Dependency directories (remove the comment below to include it)
 # vendor/
+
+dist/
diff --git a/.goreleaser.yaml b/.goreleaser.yaml
new file mode 100644
index 0000000..efa2fc2
--- /dev/null
+++ b/.goreleaser.yaml
@@ -0,0 +1,75 @@
+# The lines below are called `modelines`. See `:help modeline`
+# Feel free to remove those if you don't want/need to use them.
+# yaml-language-server: $schema=https://goreleaser.com/static/schema.json
+# vim: set ts=2 sw=2 tw=0 fo=cnqoj
+
+version: 1
+
+before:
+  hooks:
+    # You may remove this if you don't use go modules.
+    - go mod tidy
+
+builds:
+  - main: ./cmd/go
+    binary: go
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - windows
+      - darwin
+      - freebsd
+      - openbsd
+      - solaris
+
+    goarch:
+      - "386"
+      - amd64
+      - arm
+      - arm64
+
+release:
+  name_template: "Release {{.Tag}}"
+
+changelog:
+  use: github-native
+
+archives:
+  - format: zip
+    name_template: "{{ .ProjectName }}_{{ .Version }}_{{- .Os }}_{{- .Arch }}"
+
+nfpms:
+  - file_name_template: '{{ .ProjectName }}_{{ .Version }}_{{ .Arch }}'
+    maintainer: 'https://github.com/dvaumoron'
+    homepage: https://github.com/dvaumoron/lastgo
+    description: >-
+      lastgo provides an alternative go command which is a proxy keeping up to date the Go toolchain (see https://go.dev).
+    license: "Apache-2.0"
+    formats:
+      - deb
+      - rpm
+      - apk
+    bindir: /usr/bin
+    section: default
+    contents:
+      - src: ./LICENSE
+        dst: /usr/share/doc/gosince/copyright
+        file_info:
+          mode: 0444
+    rpm:
+      signature:
+        key_file: "{{ if index .Env \"GPG_KEY_FILE\"  }}{{.Env.GPG_KEY_FILE}}{{ end }}"
+    deb:
+      signature:
+        key_file: "{{ if index .Env \"GPG_KEY_FILE\"  }}{{.Env.GPG_KEY_FILE}}{{ end }}"
+
+brews:
+  - repository:
+      owner: dvaumoron
+      name: homebrew-tap
+    directory: Formula
+    homepage: https://github.com/dvaumoron/lastgo
+    description: provides an alternative go command which is a proxy keeping up to date the Go toolchain (see https://go.dev).
+    license: "Apache-2.0"
+    commit_msg_template: "Brew formula update for {{ .ProjectName }} version {{ .Tag }}"
diff --git a/README.md b/README.md
index a545f31..5aa4508 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,40 @@
 # lastgo
 
 The **lastgo** project provides an alternative `go` command which is a proxy keeping up to date the [Go](https://go.dev) toolchain.
+
+## Getting started
+
+Install via [Homebrew](https://brew.sh)
+
+```console
+$ brew tap dvaumoron/tap
+$ brew install lastgo
+```
+
+Or get the [last binary](https://github.com/dvaumoron/lastgo/releases) depending on your OS.
+
+## Environment Variables
+
+### LASTGO_ASK
+
+String (Default: "")
+
+When non empty, **lastgo** ask user for confirmation before an update.
+
+### LASTGO_CHECK_INTERVAL
+
+String (Default: 24h)
+
+Minimum interval waited between check of last version on `LASTGO_DOWNLOAD_URL`.
+
+### LASTGO_DOWNLOAD_URL
+
+String (Default: https://go.dev/dl)
+
+URL to download Go binary (only used to install at first launch, update rely on **Go** `GOTOOLCHAIN` mecanism).
+
+### LASTGO_ROOT
+
+String (Default: ${HOME}/.lastgo)
+
+Path to directory where **lastgo** install `go`.
diff --git a/pkg/goversion/version.go b/pkg/goversion/version.go
index b06bb02..f0f2df8 100644
--- a/pkg/goversion/version.go
+++ b/pkg/goversion/version.go
@@ -33,7 +33,7 @@ type version struct {
 }
 
 func init() {
-	versionRegexp = regexp.MustCompilePOSIX("go[0-9]+(\\.[0-9]+)*")
+	versionRegexp = regexp.MustCompilePOSIX("go[0-9]+\\.[0-9]+(\\.[0-9]+)?")
 }
 
 // return a go version (like "go1.22.3").