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tpl/transform: Simplify transform.Unmarshal func

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See #5428
This commit is contained in:
Bjørn Erik Pedersen 2018-12-23 16:43:04 +01:00
parent a574469797
commit 094709e105
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GPG key ID: 330E6E2BD4859D8F
3 changed files with 23 additions and 40 deletions
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1
go.sum
View file

@ -72,6 +72,7 @@ github.com/magefile/mage v1.4.0 h1:RI7B1CgnPAuu2O9lWszwya61RLmfL0KCdo+QyyI/Bhk=
github.com/magefile/mage v1.4.0/go.mod h1:IUDi13rsHje59lecXokTfGX0QIzO45uVPlXnJYsXepA=
github.com/magiconair/properties v1.8.0 h1:LLgXmsheXeRoUOBOjtwPQCWIYqM/LU1ayDtDePerRcY=
github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
github.com/markbates/inflect v0.0.0-20171215194931-a12c3aec81a6 h1:LZhVjIISSbj8qLf2qDPP0D8z0uvOWAW5C85ly5mJW6c=
github.com/markbates/inflect v0.0.0-20171215194931-a12c3aec81a6/go.mod h1:oTeZL2KHA7CUX6X+fovmK9OvIOFuqu0TwdQrZjLTh88=
github.com/matryer/try v0.0.0-20161228173917-9ac251b645a2/go.mod h1:0KeJpeMD6o+O4hW7qJOT7vyQPKrWmj26uf5wMc/IiIs=
github.com/mattn/go-isatty v0.0.4 h1:bnP0vzxcAdeI1zdubAl5PjU6zsERjGZb7raWodagDYs=

40
tpl/transform/unmarshal.go
View file

@ -17,7 +17,6 @@ import (
"io/ioutil"
"strings"
"github.com/gohugoio/hugo/common/hugio"
"github.com/mitchellh/mapstructure"
"github.com/gohugoio/hugo/helpers"
@ -30,7 +29,7 @@ import (
// Unmarshal unmarshals the data given, which can be either a string
// or a Resource. Supported formats are JSON, TOML, YAML, and CSV.
// You can optional provide an Options object as the first argument.
// You can optionally provide an options map as the first argument.
func (ns *Namespace) Unmarshal(args ...interface{}) (interface{}, error) {
if len(args) < 1 || len(args) > 2 {
return nil, errors.New("unmarshal takes 1 or 2 arguments")
@ -54,32 +53,13 @@ func (ns *Namespace) Unmarshal(args ...interface{}) (interface{}, error) {
if err != nil {
return nil, errors.WithMessage(err, "failed to decode options")
}
}
// All the relevant Resource types implements ReadSeekCloserResource,
// which should be the most effective way to get the content.
if r, ok := data.(resource.ReadSeekCloserResource); ok {
var key string
var reader hugio.ReadSeekCloser
if k, ok := r.(resource.Identifier); ok {
key = k.Key()
}
if r, ok := data.(unmarshableResource); ok {
key := r.Key()
if key == "" {
reader, err := r.ReadSeekCloser()
if err != nil {
return nil, err
}
defer reader.Close()
key, err = helpers.MD5FromReader(reader)
if err != nil {
return nil, err
}
reader.Seek(0, 0)
return nil, errors.New("no Key set in Resource")
}
return ns.cache.GetOrCreate(key, func() (interface{}, error) {
@ -88,14 +68,11 @@ func (ns *Namespace) Unmarshal(args ...interface{}) (interface{}, error) {
return nil, errors.Errorf("MIME %q not supported", r.MediaType())
}
if reader == nil {
var err error
reader, err = r.ReadSeekCloser()
reader, err := r.ReadSeekCloser()
if err != nil {
return nil, err
}
defer reader.Close()
}
b, err := ioutil.ReadAll(reader)
if err != nil {
@ -104,7 +81,6 @@ func (ns *Namespace) Unmarshal(args ...interface{}) (interface{}, error) {
return decoder.Unmarshal(b, f)
})
}
dataStr, err := cast.ToStringE(data)
@ -124,6 +100,12 @@ func (ns *Namespace) Unmarshal(args ...interface{}) (interface{}, error) {
})
}
// All the relevant resources implements this interface.
type unmarshableResource interface {
resource.ReadSeekCloserResource
resource.Identifier
}
func decodeDecoder(m map[string]interface{}) (metadecoders.Decoder, error) {
opts := metadecoders.Default

16
tpl/transform/unmarshal_test.go
View file

@ -102,23 +102,23 @@ func TestUnmarshal(t *testing.T) {
{`slogan = "Hugo Rocks!"`, nil, func(m map[string]interface{}) {
assertSlogan(m)
}},
{testContentResource{content: `slogan: "Hugo Rocks!"`, mime: media.YAMLType}, nil, func(m map[string]interface{}) {
{testContentResource{key: "r1", content: `slogan: "Hugo Rocks!"`, mime: media.YAMLType}, nil, func(m map[string]interface{}) {
assertSlogan(m)
}},
{testContentResource{content: `{ "slogan": "Hugo Rocks!" }`, mime: media.JSONType}, nil, func(m map[string]interface{}) {
{testContentResource{key: "r1", content: `{ "slogan": "Hugo Rocks!" }`, mime: media.JSONType}, nil, func(m map[string]interface{}) {
assertSlogan(m)
}},
{testContentResource{content: `slogan = "Hugo Rocks!"`, mime: media.TOMLType}, nil, func(m map[string]interface{}) {
{testContentResource{key: "r1", content: `slogan = "Hugo Rocks!"`, mime: media.TOMLType}, nil, func(m map[string]interface{}) {
assertSlogan(m)
}},
{testContentResource{content: `1997,Ford,E350,"ac, abs, moon",3000.00
{testContentResource{key: "r1", content: `1997,Ford,E350,"ac, abs, moon",3000.00
1999,Chevy,"Venture ""Extended Edition""","",4900.00`, mime: media.CSVType}, nil, func(r [][]string) {
assert.Equal(2, len(r))
first := r[0]
assert.Equal(5, len(first))
assert.Equal("Ford", first[1])
}},
{testContentResource{content: `a;b;c`, mime: media.CSVType}, map[string]interface{}{"comma": ";"}, func(r [][]string) {
{testContentResource{key: "r1", content: `a;b;c`, mime: media.CSVType}, map[string]interface{}{"comma": ";"}, func(r [][]string) {
assert.Equal(r, [][]string{[]string{"a", "b", "c"}})
}},
@ -130,7 +130,7 @@ func TestUnmarshal(t *testing.T) {
assert.Equal(r, [][]string{[]string{"a", "b", "c"}})
}},
{testContentResource{content: `
{testContentResource{key: "r1", content: `
% This is a comment
a;b;c`, mime: media.CSVType}, map[string]interface{}{"CommA": ";", "Comment": "%"}, func(r [][]string) {
assert.Equal(r, [][]string{[]string{"a", "b", "c"}})
@ -138,8 +138,8 @@ a;b;c`, mime: media.CSVType}, map[string]interface{}{"CommA": ";", "Comment": "%
}},
// errors
{"thisisnotavaliddataformat", nil, false},
{testContentResource{content: `invalid&toml"`, mime: media.TOMLType}, nil, false},
{testContentResource{content: `unsupported: MIME"`, mime: media.CalendarType}, nil, false},
{testContentResource{key: "r1", content: `invalid&toml"`, mime: media.TOMLType}, nil, false},
{testContentResource{key: "r1", content: `unsupported: MIME"`, mime: media.CalendarType}, nil, false},
{"thisisnotavaliddataformat", nil, false},
{`{ notjson }`, nil, false},
{tstNoStringer{}, nil, false},