refmt 
Reformat HCL ⇄ JSON and HCL ⇄ YAML.
install
$ go get github.com/rjeczalik/refmt
usage
usage:
refmt [-t type] INPUT_FILE|"-" OUTPUT_FILE|"-"
Converts from one encoding to another. Supported formats (and their file extensions):
- HCL (.hcl or .tf)
- JSON (.json)
- YAML (.yaml or .yml)
If INPUT_FILE's extension is not recognized or INPUT_FILE is "-" (stdin),
refmt will try to guess input format.
If OUTPUT_FILE is "-" (stdout), destination format type is required to be
passed with -t flag.
refmt [-t type] merge ORIGINAL_FILE|"-" MIXIN_FILE|"-" OUTPUT_FILE|"-"
Merges the object defined in ORIGINAL_FILE with the object from MIXIN_FILE, writing
the resulting object to the OUTPUT_FILE.
The ORIGINAL_FILE, MIXIN_FILE and OUTPUT_FILE can have different encodings.
If ORIGINAL_FILE's extension is not recognized or ORIGINAL_FILE is "-" (stdin),
refmt will try to guess original format.
If ORIGINAL_FILE does not exist or is empty, refmt is going to use empty
object instead.
If MIXIN_FILE's extension is not recognized or MIXIN_FILE is "-" (stdin),
refmt will try to guess mixin format.
If OUTPUT_FILE is "-" (stdout), destination format type is required to be
passed with -t flag.
docker usage
# build the refmt image
docker build -t refmt .
# convert test.yml to hcl
cat test.yml | docker run -i --rm refmt -t hcl - -
examples
$ refmt -t yaml main.yaml -
provider:
aws:
access_key: ${var.aws_access_key}
secret_key: ${var.aws_secret_key}
resource:
aws_instance:
aws-instance:
instance_type: t2.nano
user_data: echo "hello world!" >> /tmp/helloworld.txt$ refmt main.yaml main.json
{
"provider": {
"aws": {
"access_key": "${var.aws_access_key}",
"secret_key": "${var.aws_secret_key}"
}
},
"resource": {
"aws_instance": {
"aws-instance": {
"instance_type": "t2.nano",
"user_data": "echo \"hello world!\" >> /tmp/helloworld.txt"
}
}
}
}$ refmt main.json main.hclprovider "aws" {
access_key = "${var.aws_access_key}"
secret_key = "${var.aws_secret_key}"
}
resource "aws_instance" "aws-instance" {
instance_type = "t2.nano"
user_data = "echo \"hello world!\" >> /tmp/helloworld.txt"
}
pretty reformat in-place
$ refmt main.tf.json main.tf.json
merge configurations
$ cat ~/.kube/config
apiVersion: v1
clusters:
- cluster:
certificate-authority: /Volumes/rjk.io/.kube/ca.pem
server: https://178.0.20.1
name: default-cluster
contexts:
- context:
cluster: default-cluster
user: default-admin
name: default-system
current-context: default-system
kind: Config
preferences: {}
users:
- name: default-admin
user:
client-certificate: /Volumes/rjk.io/.kube/admin.pem
client-key: /Volumes/rjk.io/.kube/admin-key.pem$ cat >>another-cluster <<EOF
apiVersion: v1
clusters:
- cluster:
certificate-authority: /Volumes/rjk.io/.kube/another-ca.pem
server: https://10.0.0.1
name: another-cluster
contexts:
- context:
cluster: another-cluster
user: another-admin
name: another-system
current-context: another-system
kind: Config
preferences: {}
users:
- name: another-admin
user:
client-certificate: /Volumes/rjk.io/.kube/another-admin.pem
client-key: /Volumes/rjk.io/.kube/another-admin-key.pem
EOF$ refmt merge -t yaml ~/.kube/config ./another-cluster -apiVersion: v1
clusters:
- cluster:
certificate-authority: /Volumes/rjk.io/.kube/ca.pem
server: https://178.0.20.1
name: default-cluster
- cluster:
certificate-authority: /Volumes/rjk.io/.kube/another-ca.pem
server: https://10.0.0.1
name: another-cluster
contexts:
- context:
cluster: default-cluster
user: default-admin
name: default-system
- context:
cluster: another-cluster
user: another-admin
name: another-system
current-context: another-system
kind: Config
preferences: {}
users:
- name: default-admin
user:
client-certificate: /Volumes/rjk.io/.kube/admin.pem
client-key: /Volumes/rjk.io/.kube/admin-key.pem
- name: another-admin
user:
client-certificate: /Volumes/rjk.io/.kube/another-admin.pem
client-key: /Volumes/rjk.io/.kube/another-admin-key.pemtodo
- inline docs
- fix hcl marshaling:
- fix excessive newlines
- fix excessive quotes