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feat: Initial commit of utility
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jsmithedin committed Apr 1, 2022
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7 changes: 7 additions & 0 deletions .gitignore
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# Compiled stuff
/bin
terraform-versions*

# Golang
.idea/

18 changes: 18 additions & 0 deletions Makefile
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BINARY_NAME=tfpvc

build-all:
echo "Compiling for every OS and Platform"
GOOS=linux GOARCH=amd64 go build -o bin/$(BINARY_NAME)-linux-amd64 main.go
GOOS=darwin GOARCH=amd64 go build -o bin/$(BINARY_NAME)-osx-amd64 main.go
GOOS=darwin GOARCH=arm64 go build -o bin/$(BINARY_NAME)-osx-arm64 main.go

install-linux:
cp bin/${BINARY_NAME}-linux-amd64 /usr/local/bin/tfpvc

install-mac-intel:
cp bin/${BINARY_NAME}-osx-amd64 /usr/local/bin/tfpvc

install-mac-applesilicon:
cp bin/$(BINARY_NAME)-osx-arm64 /usr/local/bin/tfpvc

all: build-all
43 changes: 43 additions & 0 deletions README.md
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#Terraform Provider Version Check

A utility to check whether Terraform providers configured in a project are up-to-date.

* Reads `.terraform.lock.hcl` file to get details of providers used in a project
* Looks up `registry.terraform.io` to get the latest version for each
* If updates are available this is notified on STDOUT
* Can optionally return code on exit if update is available

## Usage

```shell
tfpvc -help
Usage of tfpvc:
-errorOnUpdate
Exit with error code if updates are available
-workingDir string
Directory with TF Files (default ".")
```
## Requirements
* Terraform must be installed and available on the system PATH
## Building
* Golang 1.17 is required to build
* To build binary for all platform/architectures (Linux/amd64, OSX/amd64, OSX/arm64)
```shell
make
```
## Installation
* To install binary to /usr/local/bin:
```shell
# Linux/amd64
make install-linux

# OSX/amd64
make install-mac-intel

# OSX/arm64
make install-mac-applesilicon
```
17 changes: 17 additions & 0 deletions go.mod
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module terraform-versions

go 1.17

require (
github.com/hashicorp/go-version v1.4.0
github.com/hashicorp/hc-install v0.3.1
github.com/hashicorp/terraform-exec v0.16.0
)

require (
github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
github.com/hashicorp/terraform-json v0.13.0 // indirect
github.com/zclconf/go-cty v1.10.0 // indirect
golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e // indirect
golang.org/x/text v0.3.5 // indirect
)
141 changes: 141 additions & 0 deletions go.sum
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github.com/Microsoft/go-winio v0.4.14/go.mod h1:qXqCSQ3Xa7+6tgxaGTIe4Kpcdsi+P8jBhyzoq1bpyYA=
github.com/Microsoft/go-winio v0.4.16 h1:FtSW/jqD+l4ba5iPBj9CODVtgfYAD8w2wS923g/cFDk=
github.com/Microsoft/go-winio v0.4.16/go.mod h1:XB6nPKklQyQ7GC9LdcBEcBl8PF76WugXOPRXwdLnMv0=
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github.com/ProtonMail/go-crypto v0.0.0-20210428141323-04723f9f07d7/go.mod h1:z4/9nQmJSSwwds7ejkxaJwO37dru3geImFUdJlaLzQo=
github.com/acomagu/bufpipe v1.0.3 h1:fxAGrHZTgQ9w5QqVItgzwj235/uYZYgbXitB+dLupOk=
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golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210320140829-1e4c9ba3b0c4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210324051608-47abb6519492/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210502180810-71e4cd670f79/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1 h1:SrN+KX8Art/Sf4HNj6Zcz06G7VEz+7w9tdXTPOZ7+l4=
golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
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/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
google.golang.org/appengine v1.6.5/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
gopkg.in/warnings.v0 v0.1.2 h1:wFXVbFY8DY5/xOe1ECiWdKCzZlxgshcYVNkBHstARME=
gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
130 changes: 130 additions & 0 deletions main.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,130 @@
package main

import (
"context"
"encoding/json"
"errors"
"flag"
"fmt"
"github.com/hashicorp/go-version"
"github.com/hashicorp/terraform-exec/tfexec"
"io/ioutil"
"net/http"
"os"
"os/exec"
"strings"
"time"
)

type RegistryResponse struct {
ID string `json:"id"`
Owner string `json:"owner"`
Namespace string `json:"namespace"`
Name string `json:"name"`
Alias string `json:"alias"`
Version string `json:"version"`
Tag string `json:"tag"`
Description string `json:"description"`
Source string `json:"source"`
PublishedAt time.Time `json:"published_at"`
Downloads int `json:"downloads"`
Tier string `json:"tier"`
LogoURL string `json:"logo_url"`
Versions []string `json:"versions"`
Docs []struct {
ID string `json:"id"`
Title string `json:"title"`
Path string `json:"path"`
Slug string `json:"slug"`
Category string `json:"category"`
Subcategory string `json:"subcategory"`
} `json:"docs"`
}

func lockFileExists(path string) bool {
lockFilePath := path + "/.terraform.lock.hcl"
_, err := os.Stat(lockFilePath)
return !errors.Is(err, os.ErrNotExist)
}

func checkVersion(provider string, localVersion *version.Version) bool {
providerName := strings.SplitN(provider, "/", 2)[1]

resp, err := http.Get("https://registry.terraform.io/v1/providers/" + providerName)
if err != nil {
fmt.Printf("Couldn't get provider details from HC: %s\n", err)
os.Exit(1)
}

defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
fmt.Printf("Couldn't get read response body: %s\n", err)
os.Exit(1)
}

var response RegistryResponse
if err := json.Unmarshal(body, &response); err != nil {
fmt.Printf("Could not unmarshal response JSON: %s\n", err)
os.Exit(1)
}

remoteVersion, err := version.NewVersion(response.Version)
if err != nil {
fmt.Printf("Could not parse remote version: %s\n", err)
os.Exit(1)
}

if localVersion.LessThan(remoteVersion) {
fmt.Println("Update of", providerName, "available", localVersion, "<", remoteVersion)
return true
}

return false
}

func main() {
workingDir := flag.String("workingDir", ".", "Directory with TF Files")
errorOnUpdate := flag.Bool("errorOnUpdate", false, "Exit with error code if updates are available")

flag.Parse()

if !lockFileExists(*workingDir) {
fmt.Println("No .terraform.lock.hcl found. Exiting")
os.Exit(1)
}

execPath, err := exec.LookPath("terraform")
if err != nil {
fmt.Println("Terraform executable not found on path, install terraform")
os.Exit(1)
}

tf, err := tfexec.NewTerraform(*workingDir, execPath)
if err != nil {
fmt.Printf("Error accessing Terraform: %s\n", err)
os.Exit(1)
}

_, providerVersions, err := tf.Version(context.Background(), true)
if err != nil {
fmt.Printf("Error running terraform version: %s\n", err)
os.Exit(1)
}

updatesAvailable := false
for provider, version := range providerVersions {
updates := checkVersion(provider, version)
if updates {
updatesAvailable = true
}
}

if *errorOnUpdate {
if updatesAvailable {
os.Exit(1)
}
}

os.Exit(0)
}

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