Merge pull request #163 from warrensbox/master

Release 0.12

README.md

@@ -137,6 +137,15 @@ version = "0.11.3"
 3. Run the command `tfswitch` in the same directory as your `.tfswitchrc`
 
 #### *Instead of a `.tfswitchrc` file, a `.terraform-version` file may be used for compatibility with [`tfenv`](https://github.com/tfutils/tfenv#terraform-version-file) and other tools which use it*
+
+### Use terragrunt.hcl file
+If a terragrunt.hcl file with the terraform constrain is included in the current directory, it should automatically download or switch to that terraform version. For example, the following should automatically switch terraform to the lastest version 0.13:     
+```ruby
+terragrunt_version_constraint = ">= 0.26, < 0.27"
+terraform_version_constraint  = ">= 0.13, < 0.14"
+...
+```
+
 ## Automation
 **Automatically switch with bash**
 

go.mod

@@ -7,6 +7,8 @@ require (
 	github.com/chzyer/logex v1.1.10 // indirect
 	github.com/chzyer/readline v0.0.0-20171208011716-f6d7a1f6fbf3 // indirect
 	github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1 // indirect
+	github.com/hashicorp/hcl/v2 v2.10.0 // indirect
+	github.com/hashicorp/hcl2 v0.0.0-20191002203319-fb75b3253c80 // indirect
 	github.com/juju/ansiterm v0.0.0-20180109212912-720a0952cc2a // indirect
 	github.com/kiranjthomas/terraform-config-inspect v0.0.0-20191120205521-a1d709eb2824
 	github.com/lunixbochs/vtclean v0.0.0-20170504063817-d14193dfc626 // indirect

go.sum

@@ -14,6 +14,8 @@ github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRF
 github.com/apparentlymart/go-dump v0.0.0-20180507223929-23540a00eaa3/go.mod h1:oL81AME2rN47vu18xqj1S1jPIPuN7afo62yKTNn3XMM=
 github.com/apparentlymart/go-textseg v1.0.0 h1:rRmlIsPEEhUTIKQb7T++Nz/A5Q6C9IuX2wFoYVvnCs0=
 github.com/apparentlymart/go-textseg v1.0.0/go.mod h1:z96Txxhf3xSFMPmb5X/1W05FF/Nj9VFpLOpjS5yuumk=
+github.com/apparentlymart/go-textseg/v13 v13.0.0 h1:Y+KvPE1NYz0xl601PVImeQfFyEy6iT90AvPUL1NNfNw=
+github.com/apparentlymart/go-textseg/v13 v13.0.0/go.mod h1:ZK2fH7c4NqDTLtiYLvIkEghdlcqw7yxLeM89kiTRPUo=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
@@ -53,10 +55,13 @@ github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfb
 github.com/golang/protobuf v1.1.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.3.4/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
 github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-cmp v0.3.0 h1:crn/baboCvb5fXaQ0IJ1SGTsTVrWpDsCWC8EGETZijY=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
+github.com/google/go-cmp v0.3.1 h1:Xye71clBPdm5HgqGwUkwhbynsUJZhDbS20FvLhQ2izg=
+github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
 github.com/grpc-ecosystem/go-grpc-middleware v1.0.0/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
 github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk=
@@ -66,8 +71,12 @@ github.com/hashicorp/go-multierror v0.0.0-20180717150148-3d5d8f294aa0/go.mod h1:
 github.com/hashicorp/hcl v0.0.0-20170504190234-a4b07c25de5f/go.mod h1:oZtUIOe8dh44I2q6ScRibXws4Ajl+d+nod3AaR9vL5w=
 github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
+github.com/hashicorp/hcl/v2 v2.10.0 h1:1S1UnuhDGlv3gRFV4+0EdwB+znNP5HmcGbIqwnSCByg=
+github.com/hashicorp/hcl/v2 v2.10.0/go.mod h1:FwWsfWEjyV/CMj8s/gqAuiviY72rJ1/oayI9WftqcKg=
 github.com/hashicorp/hcl2 v0.0.0-20190821123243-0c888d1241f6 h1:JImQpEeUQ+0DPFMaWzLA0GdUNPaUlCXLpfiqkSZBUfc=
 github.com/hashicorp/hcl2 v0.0.0-20190821123243-0c888d1241f6/go.mod h1:Cxv+IJLuBiEhQ7pBYGEuORa0nr4U994pE8mYLuFd7v0=
+github.com/hashicorp/hcl2 v0.0.0-20191002203319-fb75b3253c80 h1:PFfGModn55JA0oBsvFghhj0v93me+Ctr3uHC/UmFAls=
+github.com/hashicorp/hcl2 v0.0.0-20191002203319-fb75b3253c80/go.mod h1:Cxv+IJLuBiEhQ7pBYGEuORa0nr4U994pE8mYLuFd7v0=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
 github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22gdxWY5EU2bo=
@@ -158,10 +167,16 @@ github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UV
 github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
 github.com/ugorji/go v1.1.4/go.mod h1:uQMGLiO92mf5W77hV/PUCpI3pbzQx3CRekS0kk+RGrc=
 github.com/vmihailenco/msgpack v3.3.3+incompatible/go.mod h1:fy3FlTQTDXWkZ7Bh6AcGMlsjHatGryHQYUTf1ShIgkk=
+github.com/vmihailenco/msgpack/v4 v4.3.12/go.mod h1:gborTTJjAo/GWTqqRjrLCn9pgNN+NXzzngzBKDPIqw4=
+github.com/vmihailenco/tagparser v0.1.1/go.mod h1:OeAg3pn3UbLjkWt+rN9oFYB6u/cQgqMEUPoW2WPyhdI=
 github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
 github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
 github.com/zclconf/go-cty v1.0.0 h1:EWtv3gKe2wPLIB9hQRQJa7k/059oIfAqcEkCNnaVckk=
 github.com/zclconf/go-cty v1.0.0/go.mod h1:xnAOWiHeOqg2nWS62VtQ7pbOu17FtxJNW8RLEih+O3s=
+github.com/zclconf/go-cty v1.2.0/go.mod h1:hOPWgoHbaTUnI5k4D2ld+GRpFJSCe6bCM7m1q/N4PQ8=
+github.com/zclconf/go-cty v1.8.0 h1:s4AvqaeQzJIu3ndv4gVIhplVD0krU+bgrcLSVUnaWuA=
+github.com/zclconf/go-cty v1.8.0/go.mod h1:vVKLxnk3puL4qRAv72AO+W99LUD4da90g3uUAzyuvAk=
+github.com/zclconf/go-cty-debug v0.0.0-20191215020915-b22d67c1ba0b/go.mod h1:ZRKQfBXbGkpdV6QMzT3rU1kSTAnfu1dO8dPKjYprgj8=
 go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
@@ -180,6 +195,8 @@ golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190502183928-7f726cade0ab/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
+golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
+golang.org/x/net v0.0.0-20200301022130-244492dfa37a/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -199,12 +216,15 @@ golang.org/x/sys v0.0.0-20190502175342-a43fa875dd82/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/text v0.3.5 h1:i6eZZ+zk0SOf0xgBpEpPD18qWcJda6q1sxt3S0kzyUQ=
+golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
+google.golang.org/appengine v1.6.5/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=

lib/install.go

@@ -91,6 +91,11 @@ func Install(tfversion string, binPath string) {
 	goarch := runtime.GOARCH
 	goos := runtime.GOOS
 
+	// TODO: Workaround for macos arm64 since terraform doesn't have a binary for it yet
+	if goos == "darwin" && goarch == "arm64" {
+		goarch = "amd64"
+	}
+
 	/* check if selected version already downloaded */
 	fileExist := CheckFileExist(installLocation + installVersion + tfversion)
 

main.go

@@ -1,7 +1,7 @@
 package main
 
 /*
-* Version 0.6.0
+* Version 0.12.0
 * Compatible with Mac OS X AND other LINUX OS ONLY
  */
 
@@ -28,6 +28,8 @@ import (
 	// original hashicorp upstream have broken dependencies, so using fork as workaround
 	// TODO: move back to upstream
 	"github.com/Masterminds/semver"
+	"github.com/hashicorp/hcl2/gohcl"
+	"github.com/hashicorp/hcl2/hclparse"
 	"github.com/kiranjthomas/terraform-config-inspect/tfconfig"
 	"github.com/mitchellh/go-homedir"
 
@@ -47,15 +49,16 @@ const (
 	tfvFilename   = ".terraform-version"
 	rcFilename    = ".tfswitchrc"
 	tomlFilename  = ".tfswitch.toml"
+	tgHclFilename = "terragrunt.hcl"
 )
 
-var version = "0.11.0\n"
+var version = "0.12.0\n"
 
 func main() {
 	custBinPath := getopt.StringLong("bin", 'b', defaultBin, "Custom binary path. Ex: /Users/username/bin/terraform")
 	listAllFlag := getopt.BoolLong("list-all", 'l', "List all versions of terraform - including beta and rc")
 	latestPre := getopt.StringLong("latest-pre", 'p', defaultLatest, "Latest pre-release implicit version. Ex: tfswitch --latest-pre 0.13 downloads 0.13.0-rc1 (latest)")
-	latestStable := getopt.StringLong("latest-stable", 's', defaultLatest, "Latest implicit version. Ex: tfswitch --latest 0.13 downloads 0.13.5 (latest)")
+	latestStable := getopt.StringLong("latest-stable", 's', defaultLatest, "Latest implicit version. Ex: tfswitch --latest-stable 0.13 downloads 0.13.7 (latest)")
 	latestFlag := getopt.BoolLong("latest", 'u', "Get latest stable version")
 	versionFlag := getopt.BoolLong("version", 'v', "Displays the version of tfswitch")
 	helpFlag := getopt.BoolLong("help", 'h', "Displays help message")
@@ -80,6 +83,7 @@ func main() {
 	RCFile := dir + fmt.Sprintf("/%s", rcFilename)                   //settings for .tfswitchrc file in current directory (backward compatible purpose)
 	TOMLConfigFile := dir + fmt.Sprintf("/%s", tomlFilename)         //settings for .tfswitch.toml file in current directory (option to specify bin directory)
 	HomeTOMLConfigFile := homedir + fmt.Sprintf("/%s", tomlFilename) //settings for .tfswitch.toml file in home directory (option to specify bin directory)
+	TGHACLFile := dir + fmt.Sprintf("/%s", tgHclFilename)            //settings for terragrunt.hcl file in current directory (option to specify bin directory)
 
 	switch {
 	case *versionFlag:
@@ -143,6 +147,9 @@ func main() {
 			tfversion := os.Getenv("TF_VERSION")
 			fmt.Printf("Terraform version environment variable: %s\n", tfversion)
 			installVersion(tfversion, custBinPath)
+		/* if terragrunt.hcl file found (IN ADDITION TO A TOML FILE) */
+		case fileExists(TGHACLFile) && len(args) == 0:
+			installTGHclFile(&TGHACLFile, &binPath)
 		// if no arg is provided - but toml file is provided
 		case version != "":
 			installVersion(version, &binPath)
@@ -189,6 +196,10 @@ func main() {
 	case checkTFModuleFileExist(dir) && len(args) == 0:
 		installTFProvidedModule(dir, custBinPath)
 
+	/* if terragrunt.hcl file found */
+	case fileExists(TGHACLFile) && len(args) == 0:
+		installTGHclFile(&TGHACLFile, custBinPath)
+
 	/* if Terraform Version environment variable is set */
 	case checkTFEnvExist() && len(args) == 0:
 		tfversion := os.Getenv("TF_VERSION")
@@ -238,12 +249,14 @@ func installVersion(arg string, custBinPath *string) {
 			lib.Install(requestedVersion, *custBinPath)
 		} else {
 			fmt.Println("The provided terraform version does not exist. Try `tfswitch -l` to see all available versions.")
+			os.Exit(1)
 		}
 
 	} else {
 		printInvalidTFVersion()
 		fmt.Println("Args must be a valid terraform version")
 		usageMessage()
+		os.Exit(1)
 	}
 }
 
@@ -373,14 +386,20 @@ func installOption(listAll bool, custBinPath *string) {
 
 // install when tf file is provided
 func installTFProvidedModule(dir string, custBinPath *string) {
-	tfversion := ""
+	fmt.Printf("Reading required version from terraform file")
 	module, _ := tfconfig.LoadModule(dir)
-	tfconstraint := module.RequiredCore[0]        //we skip duplicated definitions and use only first one
+	tfconstraint := module.RequiredCore[0] //we skip duplicated definitions and use only first one
+	installFromConstraint(&tfconstraint, custBinPath)
+}
+
+// install using a version constraint
+func installFromConstraint(tfconstraint *string, custBinPath *string) {
+	tfversion := ""
 	listAll := true                               //set list all true - all versions including beta and rc will be displayed
 	tflist, _ := lib.GetTFList(hashiURL, listAll) //get list of versions
-	fmt.Printf("Reading required version from terraform file, constraint: %s\n", tfconstraint)
+	fmt.Printf("Reading required version from constraint: %s\n", *tfconstraint)
 
-	constrains, err := semver.NewConstraint(tfconstraint) //NewConstraint returns a Constraints instance that a Version instance can be checked against
+	constrains, err := semver.NewConstraint(*tfconstraint) //NewConstraint returns a Constraints instance that a Version instance can be checked against
 	if err != nil {
 		fmt.Printf("Error parsing constraint: %s\nPlease check constrain syntax on terraform file.\n", err)
 		fmt.Println()
@@ -415,3 +434,21 @@ func installTFProvidedModule(dir string, custBinPath *string) {
 	fmt.Println("No version found to match constraint. Follow the README.md instructions for setup. https://github.com/warrensbox/terraform-switcher/blob/master/README.md")
 	os.Exit(1)
 }
+
+// Install using version constraint from terragrunt file
+func installTGHclFile(tgFile *string, custBinPath *string) {
+	fmt.Printf("Terragrunt file found: %s\n", *tgFile)
+	parser := hclparse.NewParser()
+	file, diags := parser.ParseHCLFile(*tgFile) //use hcl parser to parse HCL file
+	if diags.HasErrors() {
+		fmt.Println("Unable to parse HCL file")
+		os.Exit(1)
+	}
+	var version terragruntVersionConstraints
+	gohcl.DecodeBody(file.Body, nil, &version)
+	installFromConstraint(&version.TerraformVersionConstraint, custBinPath)
+}
+
+type terragruntVersionConstraints struct {
+	TerraformVersionConstraint string `hcl:"terraform_version_constraint"`
+}

test-data/test_terragrunt_hcl/terragrunt.hcl

@@ -0,0 +1,16 @@
+include {
+  path = "${find_in_parent_folders()}"
+}
+
+terraform {
+  source = "..."
+
+  extra_arguments "variables" {
+    commands = get_terraform_commands_that_need_vars()
+  }
+}
+  inputs = merge(
+    jsondecode(file("${find_in_parent_folders("general.tfvars")}"))
+)
+
+terraform_versin_constraint=">= 0.13, < 0.14"

version

@@ -1 +1 @@
-RELEASE_VERSION=0.11
+RELEASE_VERSION=0.12

www/docs/Quick-Start.md

@@ -81,6 +81,14 @@ version = "0.11.3"
 
 *Instead of a `.tfswitchrc` file, a `.terraform-version` file may be used for compatibility with [`tfenv`](https://github.com/tfutils/tfenv#terraform-version-file) and other tools which use it*
 
+### Use terragrunt.hcl file
+If a terragrunt.hcl file with the terraform constrain is included in the current directory, it should automatically download or switch to that terraform version. For example, the following should automatically switch terraform to the lastest version 0.13:     
+```ruby
+terragrunt_version_constraint = ">= 0.26, < 0.27"
+terraform_version_constraint  = ">= 0.13, < 0.14"
+...
+```
+
 **Automatically switch with bash**
 
 Add the following to the end of your `~/.bashrc` file: