update README, add go-gitver for manual build versions

README.md

@@ -25,16 +25,16 @@ curl -A MS https://webinstall.dev/dotenv | powershell
 ## Usage
 
 ```bash
-dotenv v1.0.0 (0000000) 2020-10-20T00:00:00Z
+dotenv v1.0.0 (17c7677) 2020-10-19T23:43:57Z
 
 Usage:
     dotenv [-f .env.alternate] -- <command> [arguments...]"
 
   -f string
     	path to .env file (default ".env")
-  -help
+  --help
     	print usage and exit
-  -version
+  --version
     	print version and exit
 
 Example:
@@ -58,6 +58,7 @@ curl -sS https://webinstall.dev/golang | bash
 ```bash
 export GOFLAGS="-mod=vendor"
 go generate -mod=vendor ./...
+go run -mod=vendor git.rootprojects.org/root/go-gitver/v2
 go build -mod=vendor .
 ```
 
@@ -77,6 +78,10 @@ curl -sS https://webinstall.dev/goreleaser | bash
 goreleaser --snapshot --skip-publish --rm-dist
 ```
 
+```bash
+./dist/dotenv_darwin_amd64/dotenv --version
+```
+
 ## License
 
 Copyright 2020 The dotenv Authors.

go.mod

@@ -2,4 +2,7 @@ module git.rootprojects.org/root/dotenv
 
 go 1.15
 
-require github.com/joho/godotenv v1.3.0
+require (
+	git.rootprojects.org/root/go-gitver/v2 v2.0.2
+	github.com/joho/godotenv v1.3.0
+)

go.sum

@@ -1,2 +1,4 @@
+git.rootprojects.org/root/go-gitver/v2 v2.0.2 h1:T+Je13wrY1jz4OPJF98HnuCNp6n2Xe2uK6/NNF6a4+0=
+git.rootprojects.org/root/go-gitver/v2 v2.0.2/go.mod h1:ur82M/jZcvr1WWihyVtNEgDBqIjo22o56wcVHeVJFh8=
 github.com/joho/godotenv v1.3.0 h1:Zjp+RcGpHhGlrMbJzXTrZZPrWj+1vfm90La1wgB6Bhc=
 github.com/joho/godotenv v1.3.0/go.mod h1:7hK45KPybAkOC6peb+G5yklZfMxEjkZhHbwpqxOKXbg=

internal/tools/tools.go

@@ -0,0 +1,8 @@
+// +build tools
+
+package tools
+
+import (
+	// for generating GoReleaser-compatible versions locally
+	_ "git.rootprojects.org/root/go-gitver/v2"
+)

vendor/modules.txt

@@ -1,3 +1,7 @@
+# git.rootprojects.org/root/go-gitver/v2 v2.0.2
+## explicit
+git.rootprojects.org/root/go-gitver/v2
+git.rootprojects.org/root/go-gitver/v2/gitver
 # github.com/joho/godotenv v1.3.0
 ## explicit
 github.com/joho/godotenv