diff --git a/.travis.yml b/.travis.yml index 04d4dae0..ec007be3 100644 --- a/.travis.yml +++ b/.travis.yml @@ -13,4 +13,4 @@ go: - "1.13.x" - "tip" -go_import_path: gopkg.in/yaml.v3 +go_import_path: github.com/flanksource/yaml diff --git a/decode.go b/decode.go index be63169b..3ac51602 100644 --- a/decode.go +++ b/decode.go @@ -21,6 +21,7 @@ import ( "fmt" "io" "math" + "os" "reflect" "strconv" "time" @@ -547,6 +548,14 @@ func (d *decoder) scalar(n *Node, out reflect.Value) bool { failf("!!binary value contains invalid base64 data") } resolved = string(data) + } else if tag == envTag { + resolved = os.Getenv(resolved.(string)) + } else if tag == templateTag { + r, err := RenderTemplate(resolved.(string)) + if err != nil { + failf("!!template value contains invalid template %s", resolved.(string)) + } + resolved = r } } if resolved == nil { @@ -570,7 +579,7 @@ func (d *decoder) scalar(n *Node, out reflect.Value) bool { u, ok := out.Addr().Interface().(encoding.TextUnmarshaler) if ok { var text []byte - if tag == binaryTag { + if tag == binaryTag || tag == envTag || tag == templateTag { text = []byte(resolved.(string)) } else { // We let any value be unmarshaled into TextUnmarshaler. @@ -587,7 +596,7 @@ func (d *decoder) scalar(n *Node, out reflect.Value) bool { } switch out.Kind() { case reflect.String: - if tag == binaryTag { + if tag == binaryTag || tag == envTag || tag == templateTag { out.SetString(resolved.(string)) return true } diff --git a/decode_test.go b/decode_test.go index 51f50709..c5afbb2d 100644 --- a/decode_test.go +++ b/decode_test.go @@ -21,12 +21,13 @@ import ( "fmt" "io" "math" + "os" "reflect" "strings" "time" + "github.com/flanksource/yaml" . "gopkg.in/check.v1" - "gopkg.in/yaml.v3" ) var unmarshalIntTest = 123 @@ -767,7 +768,7 @@ var unmarshalTests = []struct { M{"a": 123456e1}, }, { "a: 123456E1\n", - M{"a": 123456E1}, + M{"a": 123456e1}, }, // yaml-test-suite 3GZX: Spec Example 7.1. Alias Nodes { @@ -803,6 +804,22 @@ var unmarshalTests = []struct { }, }, + // Env vars + { + "a: !!env TEST_ENV\n", + map[string]string{"a": "value_env"}, + }, + + // Templates + { + "a: !!template '{{ base64.Encode \"hello world\" }}'", + map[string]string{"a": "aGVsbG8gd29ybGQ="}, + }, + + { + "a: !!template '{{ hello \"world\" }}'", + map[string]string{"a": "Hello world"}, + }, } type M map[string]interface{} @@ -822,6 +839,8 @@ type inlineD struct { } func (s *S) TestUnmarshal(c *C) { + defer os.Setenv("TEST_ENV", "") + os.Setenv("TEST_ENV", "value_env") for i, item := range unmarshalTests { c.Logf("test %d: %q", i, item.data) t := reflect.ValueOf(item.value).Type() @@ -846,6 +865,8 @@ func (s *S) TestUnmarshalFullTimestamp(c *C) { } func (s *S) TestDecoderSingleDocument(c *C) { + defer os.Setenv("TEST_ENV", "") + os.Setenv("TEST_ENV", "value_env") // Test that Decoder.Decode works as expected on // all the unmarshal tests. for i, item := range unmarshalTests { @@ -949,14 +970,14 @@ var unmarshalErrorTests = []struct { {"a:\n 1:\nb\n 2:", ".*could not find expected ':'"}, { "a: &a [00,00,00,00,00,00,00,00,00]\n" + - "b: &b [*a,*a,*a,*a,*a,*a,*a,*a,*a]\n" + - "c: &c [*b,*b,*b,*b,*b,*b,*b,*b,*b]\n" + - "d: &d [*c,*c,*c,*c,*c,*c,*c,*c,*c]\n" + - "e: &e [*d,*d,*d,*d,*d,*d,*d,*d,*d]\n" + - "f: &f [*e,*e,*e,*e,*e,*e,*e,*e,*e]\n" + - "g: &g [*f,*f,*f,*f,*f,*f,*f,*f,*f]\n" + - "h: &h [*g,*g,*g,*g,*g,*g,*g,*g,*g]\n" + - "i: &i [*h,*h,*h,*h,*h,*h,*h,*h,*h]\n", + "b: &b [*a,*a,*a,*a,*a,*a,*a,*a,*a]\n" + + "c: &c [*b,*b,*b,*b,*b,*b,*b,*b,*b]\n" + + "d: &d [*c,*c,*c,*c,*c,*c,*c,*c,*c]\n" + + "e: &e [*d,*d,*d,*d,*d,*d,*d,*d,*d]\n" + + "f: &f [*e,*e,*e,*e,*e,*e,*e,*e,*e]\n" + + "g: &g [*f,*f,*f,*f,*f,*f,*f,*f,*f]\n" + + "h: &h [*g,*g,*g,*g,*g,*g,*g,*g,*g]\n" + + "i: &i [*h,*h,*h,*h,*h,*h,*h,*h,*h]\n", "yaml: document contains excessive aliasing", }, } @@ -1464,7 +1485,7 @@ func (s *S) TestUnmarshalNull(c *C) { func (s *S) TestUnmarshalPreservesData(c *C) { var v struct { A, B int - C int `yaml:"-"` + C int `yaml:"-"` } v.A = 42 v.C = 88 diff --git a/encode_test.go b/encode_test.go index 0f01b76f..a4901211 100644 --- a/encode_test.go +++ b/encode_test.go @@ -26,8 +26,8 @@ import ( "net" "os" + "github.com/flanksource/yaml" . "gopkg.in/check.v1" - "gopkg.in/yaml.v3" ) var marshalIntTest = 123 diff --git a/example_embedded_test.go b/example_embedded_test.go index 9d17398a..b2d4cbc5 100644 --- a/example_embedded_test.go +++ b/example_embedded_test.go @@ -19,7 +19,7 @@ import ( "fmt" "log" - "gopkg.in/yaml.v3" + "github.com/flanksource/yaml" ) // An example showing how to unmarshal embedded diff --git a/go.mod b/go.mod index f407ea32..b669f63c 100644 --- a/go.mod +++ b/go.mod @@ -1,5 +1,33 @@ -module "gopkg.in/yaml.v3" +module github.com/flanksource/yaml require ( - "gopkg.in/check.v1" v0.0.0-20161208181325-20d25e280405 + github.com/Masterminds/goutils v1.1.0 // indirect + github.com/Shopify/ejson v1.2.1 // indirect + github.com/aws/aws-sdk-go v1.29.25 // indirect + github.com/boltdb/bolt v1.3.1 // indirect + github.com/docker/libkv v0.2.1 // indirect + github.com/dustin/gojson v0.0.0-20160307161227-2e71ec9dd5ad // indirect + github.com/google/uuid v1.1.1 // indirect + github.com/gosimple/slug v1.9.0 // indirect + github.com/gotestyourself/gotestyourself v2.2.0+incompatible // indirect + github.com/hairyhenderson/gomplate v3.5.0+incompatible + github.com/hairyhenderson/toml v0.3.0 // indirect + github.com/hashicorp/consul/api v1.4.0 // indirect + github.com/hashicorp/vault/api v1.0.4 // indirect + github.com/joho/godotenv v1.3.0 // indirect + github.com/pkg/errors v0.9.1 + github.com/smartystreets/goconvey v1.6.4 // indirect + github.com/spf13/afero v1.2.2 // indirect + github.com/ugorji/go v1.1.7 // indirect + github.com/zealic/xignore v0.3.3 // indirect + golang.org/x/crypto v0.0.0-20200317142112-1b76d66859c6 // indirect + gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 + gopkg.in/hairyhenderson/yaml.v2 v2.0.0-00010101000000-000000000000 // indirect + gopkg.in/yaml.v2 v2.2.8 + gotest.tools v2.2.0+incompatible // indirect + k8s.io/client-go v11.0.0+incompatible // indirect ) + +go 1.13 + +replace gopkg.in/hairyhenderson/yaml.v2 => github.com/maxaudron/yaml v0.0.0-20190411130442-27c13492fe3c diff --git a/go.sum b/go.sum new file mode 100644 index 00000000..075d6d2d --- /dev/null +++ b/go.sum @@ -0,0 +1,230 @@ +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/Masterminds/goutils v1.1.0 h1:zukEsf/1JZwCMgHiK3GZftabmxiCw4apj3a28RPBiVg= +github.com/Masterminds/goutils v1.1.0/go.mod h1:8cTjp+g8YejhMuvIA5y2vz3BpJxksy863GQaJW2MFNU= +github.com/Shopify/ejson v1.2.1 h1:Dx0Ipn0mUgrZlzIa5oIUrH0rdSmBOyod/UJmQQK1KHo= +github.com/Shopify/ejson v1.2.1/go.mod h1:J8cw5GOA0l/aMOPp+uDfwNYVbeqIaBhzRkv1+76UCvk= +github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o= +github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da h1:8GUt8eRujhVEGZFFEjBj46YV4rDjvGrNxb0KMWYkL2I= +github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod 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100644 --- a/limit_test.go +++ b/limit_test.go @@ -4,8 +4,8 @@ import ( "strings" "testing" + "github.com/flanksource/yaml" . "gopkg.in/check.v1" - "gopkg.in/yaml.v3" ) var limitTests = []struct { diff --git a/node_test.go b/node_test.go index 7c0841f2..e4eaa519 100644 --- a/node_test.go +++ b/node_test.go @@ -18,12 +18,12 @@ package yaml_test import ( "bytes" "fmt" + "io" "os" + "strings" + "github.com/flanksource/yaml" . "gopkg.in/check.v1" - "gopkg.in/yaml.v3" - "io" - "strings" ) var nodeTests = []struct { @@ -950,9 +950,9 @@ var nodeTests = []struct { }, { "- la # IA\n- lb # IB\n- lc # IC\n", yaml.Node{ - Kind: yaml.DocumentNode, - Line: 1, - Column: 1, + Kind: yaml.DocumentNode, + Line: 1, + Column: 1, Content: []*yaml.Node{{ Kind: yaml.SequenceNode, Tag: "!!seq", @@ -985,9 +985,9 @@ var nodeTests = []struct { }, { "# DH1\n\n# HL1\n- - la\n # HB1\n - lb\n", yaml.Node{ - Kind: yaml.DocumentNode, - Line: 4, - Column: 1, + Kind: yaml.DocumentNode, + Line: 4, + Column: 1, HeadComment: "# DH1", Content: []*yaml.Node{{ Kind: yaml.SequenceNode, @@ -1020,9 +1020,9 @@ var nodeTests = []struct { }, { "# DH1\n\n# HL1\n- # HA1\n - la\n # HB1\n - lb\n", yaml.Node{ - Kind: yaml.DocumentNode, - Line: 4, - Column: 1, + Kind: yaml.DocumentNode, + Line: 4, + Column: 1, HeadComment: "# DH1", Content: []*yaml.Node{{ Kind: yaml.SequenceNode, @@ -1036,11 +1036,11 @@ var nodeTests = []struct { Column: 3, HeadComment: "# HL1", Content: []*yaml.Node{{ - Kind: yaml.ScalarNode, - Tag: "!!str", - Line: 5, - Column: 5, - Value: "la", + Kind: yaml.ScalarNode, + Tag: "!!str", + Line: 5, + Column: 5, + Value: "la", HeadComment: "# HA1", }, { Kind: yaml.ScalarNode, @@ -1056,9 +1056,9 @@ var nodeTests = []struct { }, { "[decode]# DH1\n\n# HL1\n- # HA1\n\n - la\n # HB1\n - lb\n", yaml.Node{ - Kind: yaml.DocumentNode, - Line: 4, - Column: 1, + Kind: yaml.DocumentNode, + Line: 4, + Column: 1, HeadComment: "# DH1", Content: []*yaml.Node{{ Kind: yaml.SequenceNode, diff --git a/resolve.go b/resolve.go index 64ae8880..207fdc60 100644 --- a/resolve.go +++ b/resolve.go @@ -78,6 +78,8 @@ const ( mapTag = "!!map" binaryTag = "!!binary" mergeTag = "!!merge" + envTag = "!!env" + templateTag = "!!template" ) var longTags = make(map[string]string) @@ -131,7 +133,7 @@ func resolve(tag string, in string) (rtag string, out interface{}) { defer func() { switch tag { - case "", rtag, strTag, binaryTag: + case "", rtag, strTag, binaryTag, envTag, templateTag: return case floatTag: if rtag == intTag { @@ -156,7 +158,7 @@ func resolve(tag string, in string) (rtag string, out interface{}) { if in != "" { hint = resolveTable[in[0]] } - if hint != 0 && tag != strTag && tag != binaryTag { + if hint != 0 && tag != strTag && tag != binaryTag && tag != envTag && tag != templateTag { // Handle things we can lookup in a map. if item, ok := resolveMap[in]; ok { return item.tag, item.value diff --git a/template.go b/template.go new file mode 100644 index 00000000..466e47a8 --- /dev/null +++ b/template.go @@ -0,0 +1,39 @@ +package yaml + +import ( + "bytes" + "fmt" + "strings" + gotemplate "text/template" + + "github.com/hairyhenderson/gomplate" + "github.com/pkg/errors" +) + +var templateFunctions = gomplate.Funcs(nil) + +func RenderTemplate(templ string) (string, error) { + tpl := gotemplate.New("") + + tpl, err := tpl.Funcs(templateFunctions).Parse(templ) + if err != nil { + return "", fmt.Errorf("invalid template %s: %v", strings.Split(templ, "\n")[0], err) + } + + unstructured := make(map[string]interface{}) + + var buf bytes.Buffer + if err := tpl.Execute(&buf, unstructured); err != nil { + return "", fmt.Errorf("error executing template %s: %v", strings.Split(templ, "\n")[0], err) + } + return buf.String(), nil +} + +func AddTemplateFunction(funcName string, fn interface{}) error { + _, found := templateFunctions[funcName] + if found { + return errors.Errorf("Function %s already defined", funcName) + } + templateFunctions[funcName] = fn + return nil +} diff --git a/template_test.go b/template_test.go new file mode 100644 index 00000000..79d9c9c2 --- /dev/null +++ b/template_test.go @@ -0,0 +1,22 @@ +package yaml_test + +import ( + "fmt" + + "github.com/flanksource/yaml" + . "gopkg.in/check.v1" +) + +func init() { + yaml.AddTemplateFunction("hello", helloFunc) +} + +func helloFunc(person string) string { + return fmt.Sprintf("Hello %s", person) +} + +func (s *S) TestTemplateFunctionAlreadyDefined(c *C) { + err := yaml.AddTemplateFunction("hello", helloFunc) + c.Assert(err, Not(Equals), nil) + c.Assert(err.Error(), DeepEquals, "Function hello already defined") +} diff --git a/yamlh.go b/yamlh.go index 2719cfbb..f8fd4053 100644 --- a/yamlh.go +++ b/yamlh.go @@ -347,8 +347,10 @@ const ( yaml_MAP_TAG = "tag:yaml.org,2002:map" // The tag !!map is used to denote mapping. // Not in original libyaml. - yaml_BINARY_TAG = "tag:yaml.org,2002:binary" - yaml_MERGE_TAG = "tag:yaml.org,2002:merge" + yaml_BINARY_TAG = "tag:yaml.org,2002:binary" + yaml_MERGE_TAG = "tag:yaml.org,2002:merge" + yaml_ENV_TAG = "tag:yaml.org,202:env" + yaml_TEMPLATE_TAG = "tag:yaml.org,202:template" yaml_DEFAULT_SCALAR_TAG = yaml_STR_TAG // The default scalar tag is !!str. yaml_DEFAULT_SEQUENCE_TAG = yaml_SEQ_TAG // The default sequence tag is !!seq. @@ -639,7 +641,6 @@ type yaml_parser_t struct { } type yaml_comment_t struct { - scan_mark yaml_mark_t // Position where scanning for comments started token_mark yaml_mark_t // Position after which tokens will be associated with this comment start_mark yaml_mark_t // Position of '#' comment mark