add support for CONFL format cnf/confl
This commit is contained in:
xdrm-brackets
parent
40d6526b64
commit
a6eb82102c
|
|
@ -0,0 +1,136 @@
|
|||
package cnf
|
||||
|
||||
import (
|
||||
lib "github.com/lytics/confl"
|
||||
"io"
|
||||
"strings"
|
||||
)
|
||||
|
||||
type confl struct {
|
||||
data interface{}
|
||||
parsed bool
|
||||
}
|
||||
|
||||
// ReadFrom implements io.ReaderFrom
|
||||
func (d *confl) ReadFrom(_reader io.Reader) (int64, error) {
|
||||
|
||||
// 1. get confl decoder
|
||||
decoder := lib.NewDecoder(_reader)
|
||||
err := decoder.Decode(&d.data)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
|
||||
d.parsed = true
|
||||
return 0, nil
|
||||
|
||||
}
|
||||
|
||||
// WriteTo implements io.WriterTo
|
||||
func (d *confl) WriteTo(_writer io.Writer) (int64, error) {
|
||||
encoder := lib.NewEncoder(_writer)
|
||||
return 0, encoder.Encode(&d.data)
|
||||
}
|
||||
|
||||
// browse returns the target of a dot-separated path (as an interface{} chain where the last is the target if found)
|
||||
func (d *confl) browse(_path string) ([]interface{}, bool) {
|
||||
|
||||
// 1. extract path
|
||||
path := strings.Split(_path, ".")
|
||||
|
||||
// 2. init output chain
|
||||
current := d.data
|
||||
chain := make([]interface{}, 0, len(path)+1)
|
||||
chain = append(chain, current)
|
||||
|
||||
// 3. iterate over path / nested fields
|
||||
for _, field := range path {
|
||||
fmap, ok := current.(map[string]interface{})
|
||||
if !ok { // incomplete path
|
||||
return chain, false
|
||||
}
|
||||
|
||||
child, ok := fmap[field]
|
||||
if !ok { // incomplete path
|
||||
return chain, false
|
||||
}
|
||||
|
||||
current = child
|
||||
chain = append(chain, current)
|
||||
}
|
||||
|
||||
return chain, true
|
||||
}
|
||||
|
||||
// Get returns the value of a dot-separated path, and if it exists
|
||||
func (d *confl) Get(_path string) (string, bool) {
|
||||
|
||||
// 1. browse path
|
||||
chain, found := d.browse(_path)
|
||||
if !found {
|
||||
return "", false
|
||||
}
|
||||
|
||||
// 2. return if string value
|
||||
value, ok := chain[len(chain)-1].(string)
|
||||
return value, ok
|
||||
|
||||
}
|
||||
|
||||
// Set the value of a dot-separated path, and creates it if not found
|
||||
func (d *confl) Set(_path, _value string) bool {
|
||||
|
||||
// 1. browse path + create it if does not exist
|
||||
path := strings.Split(_path, ".")
|
||||
lp := len(path)
|
||||
chain, found := d.browse(_path)
|
||||
|
||||
// 2. if found -> set value
|
||||
if found {
|
||||
mapWrapper, ok := chain[len(chain)-2].(map[string]interface{})
|
||||
if !ok { // impossible
|
||||
return false
|
||||
}
|
||||
key := path[lp-1]
|
||||
mapWrapper[key] = _value
|
||||
return true
|
||||
}
|
||||
|
||||
// 3. create path until the end to set value
|
||||
root := make(map[string]interface{})
|
||||
current := root
|
||||
|
||||
// create children until second to last
|
||||
for i, l := len(chain)-1, lp-1; i < l; i++ {
|
||||
child := make(map[string]interface{})
|
||||
current[path[i]] = child
|
||||
current = child
|
||||
}
|
||||
|
||||
// set value
|
||||
current[path[lp-1]] = _value
|
||||
|
||||
// replace whole object if empty
|
||||
if len(chain) < 2 {
|
||||
wrapper, ok := d.data.(map[string]interface{})
|
||||
if !ok { // impossible
|
||||
return false
|
||||
}
|
||||
key := path[0]
|
||||
wrapper[key] = root[key] // store with key ; eitherway it will erase all brother keys
|
||||
return true
|
||||
}
|
||||
|
||||
// update last found object to add the value
|
||||
wrapper, ok := chain[len(chain)-1].(map[string]interface{})
|
||||
if !ok { // impossible
|
||||
return false
|
||||
}
|
||||
|
||||
// add each subkey
|
||||
for subkey, subvalue := range root {
|
||||
wrapper[subkey] = subvalue
|
||||
}
|
||||
return true
|
||||
|
||||
}
|
||||
|
|
@ -0,0 +1,190 @@
|
|||
package cnf
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func TestConflGet(t *testing.T) {
|
||||
|
||||
tests := []struct {
|
||||
raw string
|
||||
key string
|
||||
}{
|
||||
{"key: value", "key"},
|
||||
{"ignore xxx\nkey value", "key"},
|
||||
{"parent {\n\tchild value\n}", "parent.child"},
|
||||
{"ignore xxx\nparent {\n\tchild value\n}", "parent.child"},
|
||||
}
|
||||
|
||||
for _, test := range tests {
|
||||
|
||||
parser := new(confl)
|
||||
reader := bytes.NewBufferString(test.raw)
|
||||
|
||||
// try to extract value
|
||||
_, err := parser.ReadFrom(reader)
|
||||
if err != nil {
|
||||
t.Errorf("parse error: %s", err)
|
||||
continue
|
||||
}
|
||||
|
||||
// extract value
|
||||
value, found := parser.Get(test.key)
|
||||
if !found {
|
||||
t.Errorf("expected a result, got none")
|
||||
continue
|
||||
}
|
||||
|
||||
// check value
|
||||
if value != "value" {
|
||||
t.Errorf("expected 'value' got '%s'", value)
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
func TestConflGetNotString(t *testing.T) {
|
||||
|
||||
tests := []struct {
|
||||
raw string
|
||||
key string
|
||||
}{
|
||||
{"key [\"value\"]", "key"},
|
||||
{"parent {\n\tchild [ \"value\" ]\n}", "parent.child"},
|
||||
}
|
||||
|
||||
for _, test := range tests {
|
||||
|
||||
parser := new(confl)
|
||||
reader := bytes.NewBufferString(test.raw)
|
||||
|
||||
// try to extract value
|
||||
_, err := parser.ReadFrom(reader)
|
||||
if err != nil {
|
||||
t.Errorf("parse error: %s", err)
|
||||
continue
|
||||
}
|
||||
|
||||
// extract value
|
||||
value, found := parser.Get(test.key)
|
||||
if found || len(value) > 0 {
|
||||
t.Errorf("expected no result, got '%s'", value)
|
||||
continue
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
func TestConflSetPathExistsAndIsString(t *testing.T) {
|
||||
|
||||
tests := []struct {
|
||||
raw string
|
||||
key string
|
||||
value string
|
||||
}{
|
||||
{"key value", "key", "newvalue"},
|
||||
{"ignore xxx\nkey value\n", "key", "newvalue"},
|
||||
{"parent {\n\tchild value\n}", "parent.child", "newvalue"},
|
||||
{"ignore xxx\nparent {\n\tchild value\n}", "parent.child", "newvalue"},
|
||||
}
|
||||
|
||||
for _, test := range tests {
|
||||
|
||||
parser := new(confl)
|
||||
reader := bytes.NewBufferString(test.raw)
|
||||
|
||||
// try to extract value
|
||||
_, err := parser.ReadFrom(reader)
|
||||
if err != nil {
|
||||
t.Errorf("parse error: %s", err)
|
||||
continue
|
||||
}
|
||||
|
||||
// update value
|
||||
if !parser.Set(test.key, test.value) {
|
||||
t.Errorf("cannot set '%s' to '%s'", test.key, test.value)
|
||||
continue
|
||||
}
|
||||
|
||||
// check new value
|
||||
value, found := parser.Get(test.key)
|
||||
if !found {
|
||||
t.Errorf("expected a result, got none")
|
||||
continue
|
||||
}
|
||||
|
||||
// check value
|
||||
if value != test.value {
|
||||
t.Errorf("expected '%s' got '%s'", test.value, value)
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
func TestConflSetCreatePath(t *testing.T) {
|
||||
|
||||
tests := []struct {
|
||||
raw string
|
||||
key string
|
||||
ignore string // path to field that must be present after transformation
|
||||
value string
|
||||
}{
|
||||
{"ignore xxx", "key", "ignore", "newvalue"},
|
||||
{"ignore xxx", "parent.child", "ignore", "newvalue"},
|
||||
{"ignore xxx", "parent.child.subchild", "ignore", "newvalue"},
|
||||
|
||||
{"ignore xxx", "key", "ignore", "newvalue"},
|
||||
{"parent {\n\tignore xxx\n}", "parent.child", "parent.ignore", "newvalue"},
|
||||
{"ignore xxx\nparent {\n}", "parent.child", "ignore", "newvalue"},
|
||||
}
|
||||
|
||||
for i, test := range tests {
|
||||
|
||||
parser := new(confl)
|
||||
reader := bytes.NewBufferString(test.raw)
|
||||
|
||||
// try to extract value
|
||||
_, err := parser.ReadFrom(reader)
|
||||
if err != nil {
|
||||
t.Errorf("[%d] parse error: %s", i, err)
|
||||
continue
|
||||
}
|
||||
|
||||
// update value
|
||||
if !parser.Set(test.key, test.value) {
|
||||
t.Errorf("[%d] cannot set '%s' to '%s'", i, test.key, test.value)
|
||||
continue
|
||||
}
|
||||
|
||||
// check new value
|
||||
value, found := parser.Get(test.key)
|
||||
if !found {
|
||||
t.Errorf("[%d] expected a result, got none", i)
|
||||
continue
|
||||
}
|
||||
|
||||
// check value
|
||||
if value != test.value {
|
||||
t.Errorf("[%d] expected '%s' got '%s'", i, test.value, value)
|
||||
continue
|
||||
}
|
||||
|
||||
// check that ignore field is still there
|
||||
value, found = parser.Get(test.ignore)
|
||||
if !found {
|
||||
t.Errorf("[%d] expected ignore field, got none", i)
|
||||
continue
|
||||
}
|
||||
|
||||
// check value
|
||||
if value != "xxx" {
|
||||
t.Errorf("[%d] expected ignore value to be '%s' got '%s'", i, "xxx", value)
|
||||
continue
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -71,6 +71,8 @@ func loadFromExtension(ext string) ConfigurationFormat {
|
|||
return new(json)
|
||||
case ".ini":
|
||||
return new(ini)
|
||||
case ".conf":
|
||||
return new(confl)
|
||||
default:
|
||||
return nil
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue