diff options
Diffstat (limited to 'vendor/github.com/magiconair/properties')
| -rw-r--r-- | vendor/github.com/magiconair/properties/CHANGELOG.md | 81 | ||||
| -rw-r--r-- | vendor/github.com/magiconair/properties/LICENSE | 25 | ||||
| -rw-r--r-- | vendor/github.com/magiconair/properties/README.md | 81 | ||||
| -rw-r--r-- | vendor/github.com/magiconair/properties/decode.go | 290 | ||||
| -rw-r--r-- | vendor/github.com/magiconair/properties/doc.go | 156 | ||||
| -rw-r--r-- | vendor/github.com/magiconair/properties/integrate.go | 34 | ||||
| -rw-r--r-- | vendor/github.com/magiconair/properties/lex.go | 409 | ||||
| -rw-r--r-- | vendor/github.com/magiconair/properties/load.go | 203 | ||||
| -rw-r--r-- | vendor/github.com/magiconair/properties/parser.go | 95 | ||||
| -rw-r--r-- | vendor/github.com/magiconair/properties/properties.go | 750 | ||||
| -rw-r--r-- | vendor/github.com/magiconair/properties/rangecheck.go | 31 |
11 files changed, 2155 insertions, 0 deletions
diff --git a/vendor/github.com/magiconair/properties/CHANGELOG.md b/vendor/github.com/magiconair/properties/CHANGELOG.md new file mode 100644 index 0000000..bf49a13 --- /dev/null +++ b/vendor/github.com/magiconair/properties/CHANGELOG.md @@ -0,0 +1,81 @@ +## Changelog + +### [1.7.0](https://github.com/magiconair/properties/tags/v1.7.0) - 20 Mar 2016 + + * [Issue #10](https://github.com/magiconair/properties/issues/10): Add [LoadURL,LoadURLs,MustLoadURL,MustLoadURLs](http://godoc.org/github.com/magiconair/properties#Properties.LoadURL) method to load properties from a URL. + * [Issue #11](https://github.com/magiconair/properties/issues/11): Add [LoadString,MustLoadString](http://godoc.org/github.com/magiconair/properties#Properties.LoadString) method to load properties from an UTF8 string. + * [PR #8](https://github.com/magiconair/properties/pull/8): Add [MustFlag](http://godoc.org/github.com/magiconair/properties#Properties.MustFlag) method to provide overrides via command line flags. (@pascaldekloe) + +### [1.6.0](https://github.com/magiconair/properties/tags/v1.6.0) - 11 Dec 2015 + + * Add [Decode](http://godoc.org/github.com/magiconair/properties#Properties.Decode) method to populate struct from properties via tags. + +### [1.5.6](https://github.com/magiconair/properties/tags/v1.5.6) - 18 Oct 2015 + + * Vendored in gopkg.in/check.v1 + +### [1.5.5](https://github.com/magiconair/properties/tags/v1.5.5) - 31 Jul 2015 + + * [PR #6](https://github.com/magiconair/properties/pull/6): Add [Delete](http://godoc.org/github.com/magiconair/properties#Properties.Delete) method to remove keys including comments. (@gerbenjacobs) + +### [1.5.4](https://github.com/magiconair/properties/tags/v1.5.4) - 23 Jun 2015 + + * [Issue #5](https://github.com/magiconair/properties/issues/5): Allow disabling of property expansion [DisableExpansion](http://godoc.org/github.com/magiconair/properties#Properties.DisableExpansion). When property expansion is disabled Properties become a simple key/value store and don't check for circular references. + +### [1.5.3](https://github.com/magiconair/properties/tags/v1.5.3) - 02 Jun 2015 + + * [Issue #4](https://github.com/magiconair/properties/issues/4): Maintain key order in [Filter()](http://godoc.org/github.com/magiconair/properties#Properties.Filter), [FilterPrefix()](http://godoc.org/github.com/magiconair/properties#Properties.FilterPrefix) and [FilterRegexp()](http://godoc.org/github.com/magiconair/properties#Properties.FilterRegexp) + +### [1.5.2](https://github.com/magiconair/properties/tags/v1.5.2) - 10 Apr 2015 + + * [Issue #3](https://github.com/magiconair/properties/issues/3): Don't print comments in [WriteComment()](http://godoc.org/github.com/magiconair/properties#Properties.WriteComment) if they are all empty + * Add clickable links to README + +### [1.5.1](https://github.com/magiconair/properties/tags/v1.5.1) - 08 Dec 2014 + + * Added [GetParsedDuration()](http://godoc.org/github.com/magiconair/properties#Properties.GetParsedDuration) and [MustGetParsedDuration()](http://godoc.org/github.com/magiconair/properties#Properties.MustGetParsedDuration) for values specified compatible with + [time.ParseDuration()](http://golang.org/pkg/time/#ParseDuration). + +### [1.5.0](https://github.com/magiconair/properties/tags/v1.5.0) - 18 Nov 2014 + + * Added support for single and multi-line comments (reading, writing and updating) + * The order of keys is now preserved + * Calling [Set()](http://godoc.org/github.com/magiconair/properties#Properties.Set) with an empty key now silently ignores the call and does not create a new entry + * Added a [MustSet()](http://godoc.org/github.com/magiconair/properties#Properties.MustSet) method + * Migrated test library from launchpad.net/gocheck to [gopkg.in/check.v1](http://gopkg.in/check.v1) + +### [1.4.2](https://github.com/magiconair/properties/tags/v1.4.2) - 15 Nov 2014 + + * [Issue #2](https://github.com/magiconair/properties/issues/2): Fixed goroutine leak in parser which created two lexers but cleaned up only one + +### [1.4.1](https://github.com/magiconair/properties/tags/v1.4.1) - 13 Nov 2014 + + * [Issue #1](https://github.com/magiconair/properties/issues/1): Fixed bug in Keys() method which returned an empty string + +### [1.4.0](https://github.com/magiconair/properties/tags/v1.4.0) - 23 Sep 2014 + + * Added [Keys()](http://godoc.org/github.com/magiconair/properties#Properties.Keys) to get the keys + * Added [Filter()](http://godoc.org/github.com/magiconair/properties#Properties.Filter), [FilterRegexp()](http://godoc.org/github.com/magiconair/properties#Properties.FilterRegexp) and [FilterPrefix()](http://godoc.org/github.com/magiconair/properties#Properties.FilterPrefix) to get a subset of the properties + +### [1.3.0](https://github.com/magiconair/properties/tags/v1.3.0) - 18 Mar 2014 + +* Added support for time.Duration +* Made MustXXX() failure beha[ior configurable (log.Fatal, panic](https://github.com/magiconair/properties/tags/vior configurable (log.Fatal, panic) - custom) +* Changed default of MustXXX() failure from panic to log.Fatal + +### [1.2.0](https://github.com/magiconair/properties/tags/v1.2.0) - 05 Mar 2014 + +* Added MustGet... functions +* Added support for int and uint with range checks on 32 bit platforms + +### [1.1.0](https://github.com/magiconair/properties/tags/v1.1.0) - 20 Jan 2014 + +* Renamed from goproperties to properties +* Added support for expansion of environment vars in + filenames and value expressions +* Fixed bug where value expressions were not at the + start of the string + +### [1.0.0](https://github.com/magiconair/properties/tags/v1.0.0) - 7 Jan 2014 + +* Initial release diff --git a/vendor/github.com/magiconair/properties/LICENSE b/vendor/github.com/magiconair/properties/LICENSE new file mode 100644 index 0000000..7eab43b --- /dev/null +++ b/vendor/github.com/magiconair/properties/LICENSE @@ -0,0 +1,25 @@ +goproperties - properties file decoder for Go + +Copyright (c) 2013-2014 - Frank Schroeder + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +1. Redistributions of source code must retain the above copyright notice, this + list of conditions and the following disclaimer. +2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR +ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/github.com/magiconair/properties/README.md b/vendor/github.com/magiconair/properties/README.md new file mode 100644 index 0000000..1ae0035 --- /dev/null +++ b/vendor/github.com/magiconair/properties/README.md @@ -0,0 +1,81 @@ +Overview [](https://travis-ci.org/magiconair/properties) +======== + +#### Current version: 1.7.0 + +properties is a Go library for reading and writing properties files. + +It supports reading from multiple files or URLs and Spring style recursive +property expansion of expressions like `${key}` to their corresponding value. +Value expressions can refer to other keys like in `${key}` or to environment +variables like in `${USER}`. Filenames can also contain environment variables +like in `/home/${USER}/myapp.properties`. + +Properties can be decoded into structs, maps, arrays and values through +struct tags. + +Comments and the order of keys are preserved. Comments can be modified +and can be written to the output. + +The properties library supports both ISO-8859-1 and UTF-8 encoded data. + +Starting from version 1.3.0 the behavior of the MustXXX() functions is +configurable by providing a custom `ErrorHandler` function. The default has +changed from `panic` to `log.Fatal` but this is configurable and custom +error handling functions can be provided. See the package documentation for +details. + +Getting Started +--------------- + +```go +import ( + "flag" + "github.com/magiconair/properties" +) + +func main() { + p := properties.MustLoadFile("${HOME}/config.properties", properties.UTF8) + + // via getters + host := p.MustGetString("host") + port := p.GetInt("port", 8080) + + // or via decode + type Config struct { + Host string `properties:"host"` + Port int `properties:"port,default=9000"` + Accept []string `properties:"accept,default=image/png;image;gif"` + Timeout time.Duration `properties:"timeout,default=5s"` + } + var cfg Config + if err := p.Decode(&cfg); err != nil { + log.Fatal(err) + } + + // or via flags + p.MustFlag(flag.CommandLine) + + // or via url + p = properties.MustLoadURL("http://host/path") +} + +``` + +Read the full documentation on [GoDoc](https://godoc.org/github.com/magiconair/properties) [](https://godoc.org/github.com/magiconair/properties) + +Installation and Upgrade +------------------------ + +``` +$ go get -u github.com/magiconair/properties +``` + +License +------- + +2 clause BSD license. See [LICENSE](https://github.com/magiconair/properties/blob/master/LICENSE) file for details. + +ToDo +---- +* Dump contents with passwords and secrets obscured diff --git a/vendor/github.com/magiconair/properties/decode.go b/vendor/github.com/magiconair/properties/decode.go new file mode 100644 index 0000000..b989e63 --- /dev/null +++ b/vendor/github.com/magiconair/properties/decode.go @@ -0,0 +1,290 @@ +// Copyright 2016 Frank Schroeder. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package properties + +import ( + "fmt" + "reflect" + "strconv" + "strings" + "time" +) + +// Decode assigns property values to exported fields of a struct. +// +// Decode traverses v recursively and returns an error if a value cannot be +// converted to the field type or a required value is missing for a field. +// +// The following type dependent decodings are used: +// +// String, boolean, numeric fields have the value of the property key assigned. +// The property key name is the name of the field. A different key and a default +// value can be set in the field's tag. Fields without default value are +// required. If the value cannot be converted to the field type an error is +// returned. +// +// time.Duration fields have the result of time.ParseDuration() assigned. +// +// time.Time fields have the vaule of time.Parse() assigned. The default layout +// is time.RFC3339 but can be set in the field's tag. +// +// Arrays and slices of string, boolean, numeric, time.Duration and time.Time +// fields have the value interpreted as a comma separated list of values. The +// individual values are trimmed of whitespace and empty values are ignored. A +// default value can be provided as a semicolon separated list in the field's +// tag. +// +// Struct fields are decoded recursively using the field name plus "." as +// prefix. The prefix (without dot) can be overridden in the field's tag. +// Default values are not supported in the field's tag. Specify them on the +// fields of the inner struct instead. +// +// Map fields must have a key of type string and are decoded recursively by +// using the field's name plus ".' as prefix and the next element of the key +// name as map key. The prefix (without dot) can be overridden in the field's +// tag. Default values are not supported. +// +// Examples: +// +// // Field is ignored. +// Field int `properties:"-"` +// +// // Field is assigned value of 'Field'. +// Field int +// +// // Field is assigned value of 'myName'. +// Field int `properties:"myName"` +// +// // Field is assigned value of key 'myName' and has a default +// // value 15 if the key does not exist. +// Field int `properties:"myName,default=15"` +// +// // Field is assigned value of key 'Field' and has a default +// // value 15 if the key does not exist. +// Field int `properties:",default=15"` +// +// // Field is assigned value of key 'date' and the date +// // is in format 2006-01-02 +// Field time.Time `properties:"date,layout=2006-01-02"` +// +// // Field is assigned the non-empty and whitespace trimmed +// // values of key 'Field' split by commas. +// Field []string +// +// // Field is assigned the non-empty and whitespace trimmed +// // values of key 'Field' split by commas and has a default +// // value ["a", "b", "c"] if the key does not exist. +// Field []string `properties:",default=a;b;c"` +// +// // Field is decoded recursively with "Field." as key prefix. +// Field SomeStruct +// +// // Field is decoded recursively with "myName." as key prefix. +// Field SomeStruct `properties:"myName"` +// +// // Field is decoded recursively with "Field." as key prefix +// // and the next dotted element of the key as map key. +// Field map[string]string +// +// // Field is decoded recursively with "myName." as key prefix +// // and the next dotted element of the key as map key. +// Field map[string]string `properties:"myName"` +func (p *Properties) Decode(x interface{}) error { + t, v := reflect.TypeOf(x), reflect.ValueOf(x) + if t.Kind() != reflect.Ptr || v.Elem().Type().Kind() != reflect.Struct { + return fmt.Errorf("not a pointer to struct: %s", t) + } + if err := dec(p, "", nil, nil, v); err != nil { + return err + } + return nil +} + +func dec(p *Properties, key string, def *string, opts map[string]string, v reflect.Value) error { + t := v.Type() + + // value returns the property value for key or the default if provided. + value := func() (string, error) { + if val, ok := p.Get(key); ok { + return val, nil + } + if def != nil { + return *def, nil + } + return "", fmt.Errorf("missing required key %s", key) + } + + // conv converts a string to a value of the given type. + conv := func(s string, t reflect.Type) (val reflect.Value, err error) { + var v interface{} + + switch { + case isDuration(t): + v, err = time.ParseDuration(s) + + case isTime(t): + layout := opts["layout"] + if layout == "" { + layout = time.RFC3339 + } + v, err = time.Parse(layout, s) + + case isBool(t): + v, err = boolVal(s), nil + + case isString(t): + v, err = s, nil + + case isFloat(t): + v, err = strconv.ParseFloat(s, 64) + + case isInt(t): + v, err = strconv.ParseInt(s, 10, 64) + + case isUint(t): + v, err = strconv.ParseUint(s, 10, 64) + + default: + return reflect.Zero(t), fmt.Errorf("unsupported type %s", t) + } + if err != nil { + return reflect.Zero(t), err + } + return reflect.ValueOf(v).Convert(t), nil + } + + // keydef returns the property key and the default value based on the + // name of the struct field and the options in the tag. + keydef := func(f reflect.StructField) (string, *string, map[string]string) { + key, opts := parseTag(f.Tag.Get("properties")) + + var def *string + if d, ok := opts["default"]; ok { + def = &d + } + if key != "" { + return key, def, opts + } + return f.Name, def, opts + } + + switch { + case isDuration(t) || isTime(t) || isBool(t) || isString(t) || isFloat(t) || isInt(t) || isUint(t): + s, err := value() + if err != nil { + return err + } + val, err := conv(s, t) + if err != nil { + return err + } + v.Set(val) + + case isPtr(t): + return dec(p, key, def, opts, v.Elem()) + + case isStruct(t): + for i := 0; i < v.NumField(); i++ { + fv := v.Field(i) + fk, def, opts := keydef(t.Field(i)) + if !fv.CanSet() { + return fmt.Errorf("cannot set ", t.Field(i).Name) + } + if fk == "-" { + continue + } + if key != "" { + fk = key + "." + fk + } + if err := dec(p, fk, def, opts, fv); err != nil { + return err + } + } + return nil + + case isArray(t): + val, err := value() + if err != nil { + return err + } + vals := split(val, ";") + a := reflect.MakeSlice(t, 0, len(vals)) + for _, s := range vals { + val, err := conv(s, t.Elem()) + if err != nil { + return err + } + a = reflect.Append(a, val) + } + v.Set(a) + + case isMap(t): + valT := t.Elem() + m := reflect.MakeMap(t) + for postfix, _ := range p.FilterStripPrefix(key + ".").m { + pp := strings.SplitN(postfix, ".", 2) + mk, mv := pp[0], reflect.New(valT) + if err := dec(p, key+"."+mk, nil, nil, mv); err != nil { + return err + } + m.SetMapIndex(reflect.ValueOf(mk), mv.Elem()) + } + v.Set(m) + + default: + return fmt.Errorf("unsupported type %s", t) + } + return nil +} + +// split splits a string on sep, trims whitespace of elements +// and omits empty elements +func split(s string, sep string) []string { + var a []string + for _, v := range strings.Split(s, sep) { + if v = strings.TrimSpace(v); v != "" { + a = append(a, v) + } + } + return a +} + +// parseTag parses a "key,k=v,k=v,..." +func parseTag(tag string) (key string, opts map[string]string) { + opts = map[string]string{} + for i, s := range strings.Split(tag, ",") { + if i == 0 { + key = s + continue + } + + pp := strings.SplitN(s, "=", 2) + if len(pp) == 1 { + opts[pp[0]] = "" + } else { + opts[pp[0]] = pp[1] + } + } + return key, opts +} + +func isArray(t reflect.Type) bool { return t.Kind() == reflect.Array || t.Kind() == reflect.Slice } +func isBool(t reflect.Type) bool { return t.Kind() == reflect.Bool } +func isDuration(t reflect.Type) bool { return t == reflect.TypeOf(time.Second) } +func isMap(t reflect.Type) bool { return t.Kind() == reflect.Map } +func isNumeric(t reflect.Type) bool { return isInt(t) || isUint(t) || isFloat(t) } +func isPtr(t reflect.Type) bool { return t.Kind() == reflect.Ptr } +func isString(t reflect.Type) bool { return t.Kind() == reflect.String } +func isStruct(t reflect.Type) bool { return t.Kind() == reflect.Struct } +func isTime(t reflect.Type) bool { return t == reflect.TypeOf(time.Time{}) } +func isFloat(t reflect.Type) bool { + return t.Kind() == reflect.Float32 || t.Kind() == reflect.Float64 +} +func isInt(t reflect.Type) bool { + return t.Kind() == reflect.Int || t.Kind() == reflect.Int8 || t.Kind() == reflect.Int16 || t.Kind() == reflect.Int32 || t.Kind() == reflect.Int64 +} +func isUint(t reflect.Type) bool { + return t.Kind() == reflect.Uint || t.Kind() == reflect.Uint8 || t.Kind() == reflect.Uint16 || t.Kind() == reflect.Uint32 || t.Kind() == reflect.Uint64 +} diff --git a/vendor/github.com/magiconair/properties/doc.go b/vendor/github.com/magiconair/properties/doc.go new file mode 100644 index 0000000..ed1ff51 --- /dev/null +++ b/vendor/github.com/magiconair/properties/doc.go @@ -0,0 +1,156 @@ +// Copyright 2016 Frank Schroeder. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package properties provides functions for reading and writing +// ISO-8859-1 and UTF-8 encoded .properties files and has +// support for recursive property expansion. +// +// Java properties files are ISO-8859-1 encoded and use Unicode +// literals for characters outside the ISO character set. Unicode +// literals can be used in UTF-8 encoded properties files but +// aren't necessary. +// +// To load a single properties file use MustLoadFile(): +// +// p := properties.MustLoadFile(filename, properties.UTF8) +// +// To load multiple properties files use MustLoadFiles() +// which loads the files in the given order and merges the +// result. Missing properties files can be ignored if the +// 'ignoreMissing' flag is set to true. +// +// Filenames can contain environment variables which are expanded +// before loading. +// +// f1 := "/etc/myapp/myapp.conf" +// f2 := "/home/${USER}/myapp.conf" +// p := MustLoadFiles([]string{f1, f2}, properties.UTF8, true) +// +// All of the different key/value delimiters ' ', ':' and '=' are +// supported as well as the comment characters '!' and '#' and +// multi-line values. +// +// ! this is a comment +// # and so is this +// +// # the following expressions are equal +// key value +// key=value +// key:value +// key = value +// key : value +// key = val\ +// ue +// +// Properties stores all comments preceding a key and provides +// GetComments() and SetComments() methods to retrieve and +// update them. The convenience functions GetComment() and +// SetComment() allow access to the last comment. The +// WriteComment() method writes properties files including +// the comments and with the keys in the original order. +// This can be used for sanitizing properties files. +// +// Property expansion is recursive and circular references +// and malformed expressions are not allowed and cause an +// error. Expansion of environment variables is supported. +// +// # standard property +// key = value +// +// # property expansion: key2 = value +// key2 = ${key} +// +// # recursive expansion: key3 = value +// key3 = ${key2} +// +// # circular reference (error) +// key = ${key} +// +// # malformed expression (error) +// key = ${ke +// +// # refers to the users' home dir +// home = ${HOME} +// +// # local key takes precendence over env var: u = foo +// USER = foo +// u = ${USER} +// +// The default property expansion format is ${key} but can be +// changed by setting different pre- and postfix values on the +// Properties object. +// +// p := properties.NewProperties() +// p.Prefix = "#[" +// p.Postfix = "]#" +// +// Properties provides convenience functions for getting typed +// values with default values if the key does not exist or the +// type conversion failed. +// +// # Returns true if the value is either "1", "on", "yes" or "true" +// # Returns false for every other value and the default value if +// # the key does not exist. +// v = p.GetBool("key", false) +// +// # Returns the value if the key exists and the format conversion +// # was successful. Otherwise, the default value is returned. +// v = p.GetInt64("key", 999) +// v = p.GetUint64("key", 999) +// v = p.GetFloat64("key", 123.0) +// v = p.GetString("key", "def") +// v = p.GetDuration("key", 999) +// +// As an alterantive properties may be applied with the standard +// library's flag implementation at any time. +// +// # Standard configuration +// v = flag.Int("key", 999, "help message") +// flag.Parse() +// +// # Merge p into the flag set +// p.MustFlag(flag.CommandLine) +// +// Properties provides several MustXXX() convenience functions +// which will terminate the app if an error occurs. The behavior +// of the failure is configurable and the default is to call +// log.Fatal(err). To have the MustXXX() functions panic instead +// of logging the error set a different ErrorHandler before +// you use the Properties package. +// +// properties.ErrorHandler = properties.PanicHandler +// +// # Will panic instead of logging an error +// p := properties.MustLoadFile("config.properties") +// +// You can also provide your own ErrorHandler function. The only requirement +// is that the error handler function must exit after handling the error. +// +// properties.ErrorHandler = func(err error) { +// fmt.Println(err) +// os.Exit(1) +// } +// +// # Will write to stdout and then exit +// p := properties.MustLoadFile("config.properties") +// +// Properties can also be loaded into a struct via the `Decode` +// method, e.g. +// +// type S struct { +// A string `properties:"a,default=foo"` +// D time.Duration `properties:"timeout,default=5s"` +// E time.Time `properties:"expires,layout=2006-01-02,default=2015-01-01"` +// } +// +// See `Decode()` method for the full documentation. +// +// The following documents provide a description of the properties +// file format. +// +// http://en.wikipedia.org/wiki/.properties +// +// http://docs.oracle.com/javase/7/docs/api/java/util/Properties.html#load%28java.io.Reader%29 +// +package properties diff --git a/vendor/github.com/magiconair/properties/integrate.go b/vendor/github.com/magiconair/properties/integrate.go new file mode 100644 index 0000000..37baaad --- /dev/null +++ b/vendor/github.com/magiconair/properties/integrate.go @@ -0,0 +1,34 @@ +// Copyright 2016 Frank Schroeder. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package properties + +import "flag" + +// MustFlag sets flags that are skipped by dst.Parse when p contains +// the respective key for flag.Flag.Name. +// +// It's use is recommended with command line arguments as in: +// flag.Parse() +// p.MustFlag(flag.CommandLine) +func (p *Properties) MustFlag(dst *flag.FlagSet) { + m := make(map[string]*flag.Flag) + dst.VisitAll(func(f *flag.Flag) { + m[f.Name] = f + }) + dst.Visit(func(f *flag.Flag) { + delete(m, f.Name) // overridden + }) + + for name, f := range m { + v, ok := p.Get(name) + if !ok { + continue + } + + if err := f.Value.Set(v); err != nil { + ErrorHandler(err) + } + } +} diff --git a/vendor/github.com/magiconair/properties/lex.go b/vendor/github.com/magiconair/properties/lex.go new file mode 100644 index 0000000..014e63f --- /dev/null +++ b/vendor/github.com/magiconair/properties/lex.go @@ -0,0 +1,409 @@ +// Copyright 2016 Frank Schroeder. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. +// +// Parts of the lexer are from the template/text/parser package +// For these parts the following applies: +// +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file of the go 1.2 +// distribution. + +package properties + +import ( + "fmt" + "strconv" + "strings" + "unicode/utf8" +) + +// item represents a token or text string returned from the scanner. +type item struct { + typ itemType // The type of this item. + pos int // The starting position, in bytes, of this item in the input string. + val string // The value of this item. +} + +func (i item) String() string { + switch { + case i.typ == itemEOF: + return "EOF" + case i.typ == itemError: + return i.val + case len(i.val) > 10: + return fmt.Sprintf("%.10q...", i.val) + } + return fmt.Sprintf("%q", i.val) +} + +// itemType identifies the type of lex items. +type itemType int + +const ( + itemError itemType = iota // error occurred; value is text of error + itemEOF + itemKey // a key + itemValue // a value + itemComment // a comment +) + +// defines a constant for EOF +const eof = -1 + +// permitted whitespace characters space, FF and TAB +const whitespace = " \f\t" + +// stateFn represents the state of the scanner as a function that returns the next state. +type stateFn func(*lexer) stateFn + +// lexer holds the state of the scanner. +type lexer struct { + input string // the string being scanned + state stateFn // the next lexing function to enter + pos int // current position in the input + start int // start position of this item + width int // width of last rune read from input + lastPos int // position of most recent item returned by nextItem + runes []rune // scanned runes for this item + items chan item // channel of scanned items +} + +// next returns the next rune in the input. +func (l *lexer) next() rune { + if int(l.pos) >= len(l.input) { + l.width = 0 + return eof + } + r, w := utf8.DecodeRuneInString(l.input[l.pos:]) + l.width = w + l.pos += l.width + return r +} + +// peek returns but does not consume the next rune in the input. +func (l *lexer) peek() rune { + r := l.next() + l.backup() + return r +} + +// backup steps back one rune. Can only be called once per call of next. +func (l *lexer) backup() { + l.pos -= l.width +} + +// emit passes an item back to the client. +func (l *lexer) emit(t itemType) { + item := item{t, l.start, string(l.runes)} + l.items <- item + l.start = l.pos + l.runes = l.runes[:0] +} + +// ignore skips over the pending input before this point. +func (l *lexer) ignore() { + l.start = l.pos +} + +// appends the rune to the current value +func (l *lexer) appendRune(r rune) { + l.runes = append(l.runes, r) +} + +// accept consumes the next rune if it's from the valid set. +func (l *lexer) accept(valid string) bool { + if strings.IndexRune(valid, l.next()) >= 0 { + return true + } + l.backup() + return false +} + +// acceptRun consumes a run of runes from the valid set. +func (l *lexer) acceptRun(valid string) { + for strings.IndexRune(valid, l.next()) >= 0 { + } + l.backup() +} + +// acceptRunUntil consumes a run of runes up to a terminator. +func (l *lexer) acceptRunUntil(term rune) { + for term != l.next() { + } + l.backup() +} + +// hasText returns true if the current parsed text is not empty. +func (l *lexer) isNotEmpty() bool { + return l.pos > l.start +} + +// lineNumber reports which line we're on, based on the position of +// the previous item returned by nextItem. Doing it this way +// means we don't have to worry about peek double counting. +func (l *lexer) lineNumber() int { + return 1 + strings.Count(l.input[:l.lastPos], "\n") +} + +// errorf returns an error token and terminates the scan by passing +// back a nil pointer that will be the next state, terminating l.nextItem. +func (l *lexer) errorf(format string, args ...interface{}) stateFn { + l.items <- item{itemError, l.start, fmt.Sprintf(format, args...)} + return nil +} + +// nextItem returns the next item from the input. +func (l *lexer) nextItem() item { + item := <-l.items + l.lastPos = item.pos + return item +} + +// lex creates a new scanner for the input string. +func lex(input string) *lexer { + l := &lexer{ + input: input, + items: make(chan item), + runes: make([]rune, 0, 32), + } + go l.run() + return l +} + +// run runs the state machine for the lexer. +func (l *lexer) run() { + for l.state = lexBeforeKey(l); l.state != nil; { + l.state = l.state(l) + } +} + +// state functions + +// lexBeforeKey scans until a key begins. +func lexBeforeKey(l *lexer) stateFn { + switch r := l.next(); { + case isEOF(r): + l.emit(itemEOF) + return nil + + case isEOL(r): + l.ignore() + return lexBeforeKey + + case isComment(r): + return lexComment + + case isWhitespace(r): + l.acceptRun(whitespace) + l.ignore() + return lexKey + + default: + l.backup() + return lexKey + } +} + +// lexComment scans a comment line. The comment character has already been scanned. +func lexComment(l *lexer) stateFn { + l.acceptRun(whitespace) + l.ignore() + for { + switch r := l.next(); { + case isEOF(r): + l.ignore() + l.emit(itemEOF) + return nil + case isEOL(r): + l.emit(itemComment) + return lexBeforeKey + default: + l.appendRune(r) + } + } +} + +// lexKey scans the key up to a delimiter +func lexKey(l *lexer) stateFn { + var r rune + +Loop: + for { + switch r = l.next(); { + + case isEscape(r): + err := l.scanEscapeSequence() + if err != nil { + return l.errorf(err.Error()) + } + + case isEndOfKey(r): + l.backup() + break Loop + + case isEOF(r): + break Loop + + default: + l.appendRune(r) + } + } + + if len(l.runes) > 0 { + l.emit(itemKey) + } + + if isEOF(r) { + l.emit(itemEOF) + return nil + } + + return lexBeforeValue +} + +// lexBeforeValue scans the delimiter between key and value. +// Leading and trailing whitespace is ignored. +// We expect to be just after the key. +func lexBeforeValue(l *lexer) stateFn { + l.acceptRun(whitespace) + l.accept(":=") + l.acceptRun(whitespace) + l.ignore() + return lexValue +} + +// lexValue scans text until the end of the line. We expect to be just after the delimiter. +func lexValue(l *lexer) stateFn { + for { + switch r := l.next(); { + case isEscape(r): + r := l.peek() + if isEOL(r) { + l.next() + l.acceptRun(whitespace) + } else { + err := l.scanEscapeSequence() + if err != nil { + return l.errorf(err.Error()) + } + } + + case isEOL(r): + l.emit(itemValue) + l.ignore() + return lexBeforeKey + + case isEOF(r): + l.emit(itemValue) + l.emit(itemEOF) + return nil + + default: + l.appendRune(r) + } + } +} + +// scanEscapeSequence scans either one of the escaped characters +// or a unicode literal. We expect to be after the escape character. +func (l *lexer) scanEscapeSequence() error { + switch r := l.next(); { + + case isEscapedCharacter(r): + l.appendRune(decodeEscapedCharacter(r)) + return nil + + case atUnicodeLiteral(r): + return l.scanUnicodeLiteral() + + case isEOF(r): + return fmt.Errorf("premature EOF") + + // silently drop the escape character and append the rune as is + default: + l.appendRune(r) + return nil + } +} + +// scans a unicode literal in the form \uXXXX. We expect to be after the \u. +func (l *lexer) scanUnicodeLiteral() error { + // scan the digits + d := make([]rune, 4) + for i := 0; i < 4; i++ { + d[i] = l.next() + if d[i] == eof || !strings.ContainsRune("0123456789abcdefABCDEF", d[i]) { + return fmt.Errorf("invalid unicode literal") + } + } + + // decode the digits into a rune + r, err := strconv.ParseInt(string(d), 16, 0) + if err != nil { + return err + } + + l.appendRune(rune(r)) + return nil +} + +// decodeEscapedCharacter returns the unescaped rune. We expect to be after the escape character. +func decodeEscapedCharacter(r rune) rune { + switch r { + case 'f': + return '\f' + case 'n': + return '\n' + case 'r': + return '\r' + case 't': + return '\t' + default: + return r + } +} + +// atUnicodeLiteral reports whether we are at a unicode literal. +// The escape character has already been consumed. +func atUnicodeLiteral(r rune) bool { + return r == 'u' +} + +// isComment reports whether we are at the start of a comment. +func isComment(r rune) bool { + return r == '#' || r == '!' +} + +// isEndOfKey reports whether the rune terminates the current key. +func isEndOfKey(r rune) bool { + return strings.ContainsRune(" \f\t\r\n:=", r) +} + +// isEOF reports whether we are at EOF. +func isEOF(r rune) bool { + return r == eof +} + +// isEOL reports whether we are at a new line character. +func isEOL(r rune) bool { + return r == '\n' || r == '\r' +} + +// isEscape reports whether the rune is the escape character which +// prefixes unicode literals and other escaped characters. +func isEscape(r rune) bool { + return r == '\\' +} + +// isEscapedCharacter reports whether we are at one of the characters that need escaping. +// The escape character has already been consumed. +func isEscapedCharacter(r rune) bool { + return strings.ContainsRune(" :=fnrt", r) +} + +// isWhitespace reports whether the rune is a whitespace character. +func isWhitespace(r rune) bool { + return strings.ContainsRune(whitespace, r) +} diff --git a/vendor/github.com/magiconair/properties/load.go b/vendor/github.com/magiconair/properties/load.go new file mode 100644 index 0000000..3915c73 --- /dev/null +++ b/vendor/github.com/magiconair/properties/load.go @@ -0,0 +1,203 @@ +// Copyright 2016 Frank Schroeder. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package properties + +import ( + "bytes" + "fmt" + "io/ioutil" + "net/http" + "os" + "strings" +) + +// Encoding specifies encoding of the input data. +type Encoding uint + +const ( + // UTF8 interprets the input data as UTF-8. + UTF8 Encoding = 1 << iota + + // ISO_8859_1 interprets the input data as ISO-8859-1. + ISO_8859_1 +) + +// Load reads a buffer into a Properties struct. +func Load(buf []byte, enc Encoding) (*Properties, error) { + return loadBuf(buf, enc) +} + +// LoadString reads an UTF8 string into a properties struct. +func LoadString(s string) (*Properties, error) { + return loadBuf([]byte(s), UTF8) +} + +// LoadFile reads a file into a Properties struct. +func LoadFile(filename string, enc Encoding) (*Properties, error) { + return loadFiles([]string{filename}, enc, false) +} + +// LoadFiles reads multiple files in the given order into +// a Properties struct. If 'ignoreMissing' is true then +// non-existent files will not be reported as error. +func LoadFiles(filenames []string, enc Encoding, ignoreMissing bool) (*Properties, error) { + return loadFiles(filenames, enc, ignoreMissing) +} + +// LoadURL reads the content of the URL into a Properties struct. +// +// The encoding is determined via the Content-Type header which +// should be set to 'text/plain'. If the 'charset' parameter is +// missing, 'iso-8859-1' or 'latin1' the encoding is set to +// ISO-8859-1. If the 'charset' parameter is set to 'utf-8' the +// encoding is set to UTF-8. A missing content type header is +// interpreted as 'text/plain; charset=utf-8'. +func LoadURL(url string) (*Properties, error) { + return loadURLs([]string{url}, false) +} + +// LoadURLs reads the content of multiple URLs in the given order into a +// Properties struct. If 'ignoreMissing' is true then a 404 status code will +// not be reported as error. See LoadURL for the Content-Type header +// and the encoding. +func LoadURLs(urls []string, ignoreMissing bool) (*Properties, error) { + return loadURLs(urls, ignoreMissing) +} + +// MustLoadString reads an UTF8 string into a Properties struct and +// panics on error. +func MustLoadString(s string) *Properties { + return must(LoadString(s)) +} + +// MustLoadFile reads a file into a Properties struct and +// panics on error. +func MustLoadFile(filename string, enc Encoding) *Properties { + return must(LoadFile(filename, enc)) +} + +// MustLoadFiles reads multiple files in the given order into +// a Properties struct and panics on error. If 'ignoreMissing' +// is true then non-existent files will not be reported as error. +func MustLoadFiles(filenames []string, enc Encoding, ignoreMissing bool) *Properties { + return must(LoadFiles(filenames, enc, ignoreMissing)) +} + +// MustLoadURL reads the content of a URL into a Properties struct and +// panics on error. +func MustLoadURL(url string) *Properties { + return must(LoadURL(url)) +} + +// MustLoadFiles reads the content of multiple URLs in the given order into a +// Properties struct and panics on error. If 'ignoreMissing' is true then a 404 +// status code will not be reported as error. +func MustLoadURLs(urls []string, ignoreMissing bool) *Properties { + return must(LoadURLs(urls, ignoreMissing)) +} + +func loadBuf(buf []byte, enc Encoding) (*Properties, error) { + p, err := parse(convert(buf, enc)) + if err != nil { + return nil, err + } + return p, p.check() +} + +func loadFiles(filenames []string, enc Encoding, ignoreMissing bool) (*Properties, error) { + var buf bytes.Buffer + for _, filename := range filenames { + f, err := expandFilename(filename) + if err != nil { + return nil, err + } + + data, err := ioutil.ReadFile(f) + if err != nil { + if ignoreMissing && os.IsNotExist(err) { + LogPrintf("properties: %s not found. skipping", filename) + continue + } + return nil, err + } + + // concatenate the buffers and add a new line in case + // the previous file didn't end with a new line + buf.Write(data) + buf.WriteRune('\n') + } + return loadBuf(buf.Bytes(), enc) +} + +func loadURLs(urls []string, ignoreMissing bool) (*Properties, error) { + var buf bytes.Buffer + for _, u := range urls { + resp, err := http.Get(u) + if err != nil { + return nil, fmt.Errorf("properties: error fetching %q. %s", u, err) + } + if resp.StatusCode == 404 && ignoreMissing { + LogPrintf("properties: %s returned %d. skipping", u, resp.StatusCode) + continue + } + if resp.StatusCode != 200 { + return nil, fmt.Errorf("properties: %s returned %d", u, resp.StatusCode) + } + body, err := ioutil.ReadAll(resp.Body) + resp.Body.Close() + if err != nil { + return nil, fmt.Errorf("properties: %s error reading response. %s", u, err) + } + + ct := resp.Header.Get("Content-Type") + var enc Encoding + switch strings.ToLower(ct) { + case "text/plain", "text/plain; charset=iso-8859-1", "text/plain; charset=latin1": + enc = ISO_8859_1 + case "", "text/plain; charset=utf-8": + enc = UTF8 + default: + return nil, fmt.Errorf("properties: invalid content type %s", ct) + } + + buf.WriteString(convert(body, enc)) + buf.WriteRune('\n') + } + return loadBuf(buf.Bytes(), UTF8) +} + +func must(p *Properties, err error) *Properties { + if err != nil { + ErrorHandler(err) + } + return p +} + +// expandFilename expands ${ENV_VAR} expressions in a filename. +// If the environment variable does not exist then it will be replaced +// with an empty string. Malformed expressions like "${ENV_VAR" will +// be reported as error. +func expandFilename(filename string) (string, error) { + return expand(filename, make(map[string]bool), "${", "}", make(map[string]string)) +} + +// Interprets a byte buffer either as an ISO-8859-1 or UTF-8 encoded string. +// For ISO-8859-1 we can convert each byte straight into a rune since the +// first 256 unicode code points cover ISO-8859-1. +func convert(buf []byte, enc Encoding) string { + switch enc { + case UTF8: + return string(buf) + case ISO_8859_1: + runes := make([]rune, len(buf)) + for i, b := range buf { + runes[i] = rune(b) + } + return string(runes) + default: + ErrorHandler(fmt.Errorf("unsupported encoding %v", enc)) + } + panic("ErrorHandler should exit") +} diff --git a/vendor/github.com/magiconair/properties/parser.go b/vendor/github.com/magiconair/properties/parser.go new file mode 100644 index 0000000..ff0e1e1 --- /dev/null +++ b/vendor/github.com/magiconair/properties/parser.go @@ -0,0 +1,95 @@ +// Copyright 2016 Frank Schroeder. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package properties + +import ( + "fmt" + "runtime" +) + +type parser struct { + lex *lexer +} + +func parse(input string) (properties *Properties, err error) { + p := &parser{lex: lex(input)} + defer p.recover(&err) + + properties = NewProperties() + key := "" + comments := []string{} + + for { + token := p.expectOneOf(itemComment, itemKey, itemEOF) + switch token.typ { + case itemEOF: + goto done + case itemComment: + comments = append(comments, token.val) + continue + case itemKey: + key = token.val + if _, ok := properties.m[key]; !ok { + properties.k = append(properties.k, key) + } + } + + token = p.expectOneOf(itemValue, itemEOF) + if len(comments) > 0 { + properties.c[key] = comments + comments = []string{} + } + switch token.typ { + case itemEOF: + properties.m[key] = "" + goto done + case itemValue: + properties.m[key] = token.val + } + } + +done: + return properties, nil +} + +func (p *parser) errorf(format string, args ...interface{}) { + format = fmt.Sprintf("properties: Line %d: %s", p.lex.lineNumber(), format) + panic(fmt.Errorf(format, args...)) +} + +func (p *parser) expect(expected itemType) (token item) { + token = p.lex.nextItem() + if token.typ != expected { + p.unexpected(token) + } + return token +} + +func (p *parser) expectOneOf(expected ...itemType) (token item) { + token = p.lex.nextItem() + for _, v := range expected { + if token.typ == v { + return token + } + } + p.unexpected(token) + panic("unexpected token") +} + +func (p *parser) unexpected(token item) { + p.errorf(token.String()) +} + +// recover is the handler that turns panics into returns from the top level of Parse. +func (p *parser) recover(errp *error) { + e := recover() + if e != nil { + if _, ok := e.(runtime.Error); ok { + panic(e) + } + *errp = e.(error) + } + return +} diff --git a/vendor/github.com/magiconair/properties/properties.go b/vendor/github.com/magiconair/properties/properties.go new file mode 100644 index 0000000..884ef4e --- /dev/null +++ b/vendor/github.com/magiconair/properties/properties.go @@ -0,0 +1,750 @@ +// Copyright 2016 Frank Schroeder. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package properties + +// BUG(frank): Set() does not check for invalid unicode literals since this is currently handled by the lexer. +// BUG(frank): Write() does not allow to configure the newline character. Therefore, on Windows LF is used. + +import ( + "fmt" + "io" + "log" + "os" + "regexp" + "strconv" + "strings" + "time" + "unicode/utf8" +) + +// ErrorHandlerFunc defines the type of function which handles failures +// of the MustXXX() functions. An error handler function must exit +// the application after handling the error. +type ErrorHandlerFunc func(error) + +// ErrorHandler is the function which handles failures of the MustXXX() +// functions. The default is LogFatalHandler. +var ErrorHandler ErrorHandlerFunc = LogFatalHandler + +type LogHandlerFunc func(fmt string, args ...interface{}) + +var LogPrintf LogHandlerFunc = log.Printf + +// LogFatalHandler handles the error by logging a fatal error and exiting. +func LogFatalHandler(err error) { + log.Fatal(err) +} + +// PanicHandler handles the error by panicking. +func PanicHandler(err error) { + panic(err) +} + +// ----------------------------------------------------------------------------- + +// A Properties contains the key/value pairs from the properties input. +// All values are stored in unexpanded form and are expanded at runtime +type Properties struct { + // Pre-/Postfix for property expansion. + Prefix string + Postfix string + + // DisableExpansion controls the expansion of properties on Get() + // and the check for circular references on Set(). When set to + // true Properties behaves like a simple key/value store and does + // not check for circular references on Get() or on Set(). + DisableExpansion bool + + // Stores the key/value pairs + m map[string]string + + // Stores the comments per key. + c map[string][]string + + // Stores the keys in order of appearance. + k []string +} + +// NewProperties creates a new Properties struct with the default +// configuration for "${key}" expressions. +func NewProperties() *Properties { + return &Properties{ + Prefix: "${", + Postfix: "}", + m: map[string]string{}, + c: map[string][]string{}, + k: []string{}, + } +} + +// Get returns the expanded value for the given key if exists. +// Otherwise, ok is false. +func (p *Properties) Get(key string) (value string, ok bool) { + v, ok := p.m[key] + if p.DisableExpansion { + return v, ok + } + if !ok { + return "", false + } + + expanded, err := p.expand(v) + + // we guarantee that the expanded value is free of + // circular references and malformed expressions + // so we panic if we still get an error here. + if err != nil { + ErrorHandler(fmt.Errorf("%s in %q", err, key+" = "+v)) + } + + return expanded, true +} + +// MustGet returns the expanded value for the given key if exists. +// Otherwise, it panics. +func (p *Properties) MustGet(key string) string { + if v, ok := p.Get(key); ok { + return v + } + ErrorHandler(invalidKeyError(key)) + panic("ErrorHandler should exit") +} + +// ---------------------------------------------------------------------------- + +// ClearComments removes the comments for all keys. +func (p *Properties) ClearComments() { + p.c = map[string][]string{} +} + +// ---------------------------------------------------------------------------- + +// GetComment returns the last comment before the given key or an empty string. +func (p *Properties) GetComment(key string) string { + comments, ok := p.c[key] + if !ok || len(comments) == 0 { + return "" + } + return comments[len(comments)-1] +} + +// ---------------------------------------------------------------------------- + +// GetComments returns all comments that appeared before the given key or nil. +func (p *Properties) GetComments(key string) []string { + if comments, ok := p.c[key]; ok { + return comments + } + return nil +} + +// ---------------------------------------------------------------------------- + +// SetComment sets the comment for the key. +func (p *Properties) SetComment(key, comment string) { + p.c[key] = []string{comment} +} + +// ---------------------------------------------------------------------------- + +// SetComments sets the comments for the key. If the comments are nil then +// all comments for this key are deleted. +func (p *Properties) SetComments(key string, comments []string) { + if comments == nil { + delete(p.c, key) + return + } + p.c[key] = comments +} + +// ---------------------------------------------------------------------------- + +// GetBool checks if the expanded value is one of '1', 'yes', +// 'true' or 'on' if the key exists. The comparison is case-insensitive. +// If the key does not exist the default value is returned. +func (p *Properties) GetBool(key string, def bool) bool { + v, err := p.getBool(key) + if err != nil { + return def + } + return v +} + +// MustGetBool checks if the expanded value is one of '1', 'yes', +// 'true' or 'on' if the key exists. The comparison is case-insensitive. +// If the key does not exist the function panics. +func (p *Properties) MustGetBool(key string) bool { + v, err := p.getBool(key) + if err != nil { + ErrorHandler(err) + } + return v +} + +func (p *Properties) getBool(key string) (value bool, err error) { + if v, ok := p.Get(key); ok { + return boolVal(v), nil + } + return false, invalidKeyError(key) +} + +func boolVal(v string) bool { + v = strings.ToLower(v) + return v == "1" || v == "true" || v == "yes" || v == "on" +} + +// ---------------------------------------------------------------------------- + +// GetDuration parses the expanded value as an time.Duration (in ns) if the +// key exists. If key does not exist or the value cannot be parsed the default +// value is returned. In almost all cases you want to use GetParsedDuration(). +func (p *Properties) GetDuration(key string, def time.Duration) time.Duration { + v, err := p.getInt64(key) + if err != nil { + return def + } + return time.Duration(v) +} + +// MustGetDuration parses the expanded value as an time.Duration (in ns) if +// the key exists. If key does not exist or the value cannot be parsed the +// function panics. In almost all cases you want to use MustGetParsedDuration(). +func (p *Properties) MustGetDuration(key string) time.Duration { + v, err := p.getInt64(key) + if err != nil { + ErrorHandler(err) + } + return time.Duration(v) +} + +// ---------------------------------------------------------------------------- + +// GetParsedDuration parses the expanded value with time.ParseDuration() if the key exists. +// If key does not exist or the value cannot be parsed the default +// value is returned. +func (p *Properties) GetParsedDuration(key string, def time.Duration) time.Duration { + s, ok := p.Get(key) + if !ok { + return def + } + v, err := time.ParseDuration(s) + if err != nil { + return def + } + return v +} + +// MustGetParsedDuration parses the expanded value with time.ParseDuration() if the key exists. +// If key does not exist or the value cannot be parsed the function panics. +func (p *Properties) MustGetParsedDuration(key string) time.Duration { + s, ok := p.Get(key) + if !ok { + ErrorHandler(invalidKeyError(key)) + } + v, err := time.ParseDuration(s) + if err != nil { + ErrorHandler(err) + } + return v +} + +// ---------------------------------------------------------------------------- + +// GetFloat64 parses the expanded value as a float64 if the key exists. +// If key does not exist or the value cannot be parsed the default +// value is returned. +func (p *Properties) GetFloat64(key string, def float64) float64 { + v, err := p.getFloat64(key) + if err != nil { + return def + } + return v +} + +// MustGetFloat64 parses the expanded value as a float64 if the key exists. +// If key does not exist or the value cannot be parsed the function panics. +func (p *Properties) MustGetFloat64(key string) float64 { + v, err := p.getFloat64(key) + if err != nil { + ErrorHandler(err) + } + return v +} + +func (p *Properties) getFloat64(key string) (value float64, err error) { + if v, ok := p.Get(key); ok { + value, err = strconv.ParseFloat(v, 64) + if err != nil { + return 0, err + } + return value, nil + } + return 0, invalidKeyError(key) +} + +// ---------------------------------------------------------------------------- + +// GetInt parses the expanded value as an int if the key exists. +// If key does not exist or the value cannot be parsed the default +// value is returned. If the value does not fit into an int the +// function panics with an out of range error. +func (p *Properties) GetInt(key string, def int) int { + v, err := p.getInt64(key) + if err != nil { + return def + } + return intRangeCheck(key, v) +} + +// MustGetInt parses the expanded value as an int if the key exists. +// If key does not exist or the value cannot be parsed the function panics. +// If the value does not fit into an int the function panics with +// an out of range error. +func (p *Properties) MustGetInt(key string) int { + v, err := p.getInt64(key) + if err != nil { + ErrorHandler(err) + } + return intRangeCheck(key, v) +} + +// ---------------------------------------------------------------------------- + +// GetInt64 parses the expanded value as an int64 if the key exists. +// If key does not exist or the value cannot be parsed the default +// value is returned. +func (p *Properties) GetInt64(key string, def int64) int64 { + v, err := p.getInt64(key) + if err != nil { + return def + } + return v +} + +// MustGetInt64 parses the expanded value as an int if the key exists. +// If key does not exist or the value cannot be parsed the function panics. +func (p *Properties) MustGetInt64(key string) int64 { + v, err := p.getInt64(key) + if err != nil { + ErrorHandler(err) + } + return v +} + +func (p *Properties) getInt64(key string) (value int64, err error) { + if v, ok := p.Get(key); ok { + value, err = strconv.ParseInt(v, 10, 64) + if err != nil { + return 0, err + } + return value, nil + } + return 0, invalidKeyError(key) +} + +// ---------------------------------------------------------------------------- + +// GetUint parses the expanded value as an uint if the key exists. +// If key does not exist or the value cannot be parsed the default +// value is returned. If the value does not fit into an int the +// function panics with an out of range error. +func (p *Properties) GetUint(key string, def uint) uint { + v, err := p.getUint64(key) + if err != nil { + return def + } + return uintRangeCheck(key, v) +} + +// MustGetUint parses the expanded value as an int if the key exists. +// If key does not exist or the value cannot be parsed the function panics. +// If the value does not fit into an int the function panics with +// an out of range error. +func (p *Properties) MustGetUint(key string) uint { + v, err := p.getUint64(key) + if err != nil { + ErrorHandler(err) + } + return uintRangeCheck(key, v) +} + +// ---------------------------------------------------------------------------- + +// GetUint64 parses the expanded value as an uint64 if the key exists. +// If key does not exist or the value cannot be parsed the default +// value is returned. +func (p *Properties) GetUint64(key string, def uint64) uint64 { + v, err := p.getUint64(key) + if err != nil { + return def + } + return v +} + +// MustGetUint64 parses the expanded value as an int if the key exists. +// If key does not exist or the value cannot be parsed the function panics. +func (p *Properties) MustGetUint64(key string) uint64 { + v, err := p.getUint64(key) + if err != nil { + ErrorHandler(err) + } + return v +} + +func (p *Properties) getUint64(key string) (value uint64, err error) { + if v, ok := p.Get(key); ok { + value, err = strconv.ParseUint(v, 10, 64) + if err != nil { + return 0, err + } + return value, nil + } + return 0, invalidKeyError(key) +} + +// ---------------------------------------------------------------------------- + +// GetString returns the expanded value for the given key if exists or +// the default value otherwise. +func (p *Properties) GetString(key, def string) string { + if v, ok := p.Get(key); ok { + return v + } + return def +} + +// MustGetString returns the expanded value for the given key if exists or +// panics otherwise. +func (p *Properties) MustGetString(key string) string { + if v, ok := p.Get(key); ok { + return v + } + ErrorHandler(invalidKeyError(key)) + panic("ErrorHandler should exit") +} + +// ---------------------------------------------------------------------------- + +// Filter returns a new properties object which contains all properties +// for which the key matches the pattern. +func (p *Properties) Filter(pattern string) (*Properties, error) { + re, err := regexp.Compile(pattern) + if err != nil { + return nil, err + } + + return p.FilterRegexp(re), nil +} + +// FilterRegexp returns a new properties object which contains all properties +// for which the key matches the regular expression. +func (p *Properties) FilterRegexp(re *regexp.Regexp) *Properties { + pp := NewProperties() + for _, k := range p.k { + if re.MatchString(k) { + pp.Set(k, p.m[k]) + } + } + return pp +} + +// FilterPrefix returns a new properties object with a subset of all keys +// with the given prefix. +func (p *Properties) FilterPrefix(prefix string) *Properties { + pp := NewProperties() + for _, k := range p.k { + if strings.HasPrefix(k, prefix) { + pp.Set(k, p.m[k]) + } + } + return pp +} + +// FilterStripPrefix returns a new properties object with a subset of all keys +// with the given prefix and the prefix removed from the keys. +func (p *Properties) FilterStripPrefix(prefix string) *Properties { + pp := NewProperties() + n := len(prefix) + for _, k := range p.k { + if len(k) > len(prefix) && strings.HasPrefix(k, prefix) { + pp.Set(k[n:], p.m[k]) + } + } + return pp +} + +// Len returns the number of keys. +func (p *Properties) Len() int { + return len(p.m) +} + +// Keys returns all keys in the same order as in the input. +func (p *Properties) Keys() []string { + keys := make([]string, len(p.k)) + for i, k := range p.k { + keys[i] = k + } + return keys +} + +// Set sets the property key to the corresponding value. +// If a value for key existed before then ok is true and prev +// contains the previous value. If the value contains a +// circular reference or a malformed expression then +// an error is returned. +// An empty key is silently ignored. +func (p *Properties) Set(key, value string) (prev string, ok bool, err error) { + if key == "" { + return "", false, nil + } + + // if expansion is disabled we allow circular references + if p.DisableExpansion { + prev, ok = p.Get(key) + p.m[key] = value + return prev, ok, nil + } + + // to check for a circular reference we temporarily need + // to set the new value. If there is an error then revert + // to the previous state. Only if all tests are successful + // then we add the key to the p.k list. + prev, ok = p.Get(key) + p.m[key] = value + + // now check for a circular reference + _, err = p.expand(value) + if err != nil { + + // revert to the previous state + if ok { + p.m[key] = prev + } else { + delete(p.m, key) + } + + return "", false, err + } + + if !ok { + p.k = append(p.k, key) + } + + return prev, ok, nil +} + +// MustSet sets the property key to the corresponding value. +// If a value for key existed before then ok is true and prev +// contains the previous value. An empty key is silently ignored. +func (p *Properties) MustSet(key, value string) (prev string, ok bool) { + prev, ok, err := p.Set(key, value) + if err != nil { + ErrorHandler(err) + } + return prev, ok +} + +// String returns a string of all expanded 'key = value' pairs. +func (p *Properties) String() string { + var s string + for _, key := range p.k { + value, _ := p.Get(key) + s = fmt.Sprintf("%s%s = %s\n", s, key, value) + } + return s +} + +// Write writes all unexpanded 'key = value' pairs to the given writer. +// Write returns the number of bytes written and any write error encountered. +func (p *Properties) Write(w io.Writer, enc Encoding) (n int, err error) { + return p.WriteComment(w, "", enc) +} + +// WriteComment writes all unexpanced 'key = value' pairs to the given writer. +// If prefix is not empty then comments are written with a blank line and the +// given prefix. The prefix should be either "# " or "! " to be compatible with +// the properties file format. Otherwise, the properties parser will not be +// able to read the file back in. It returns the number of bytes written and +// any write error encountered. +func (p *Properties) WriteComment(w io.Writer, prefix string, enc Encoding) (n int, err error) { + var x int + + for _, key := range p.k { + value := p.m[key] + + if prefix != "" { + if comments, ok := p.c[key]; ok { + // don't print comments if they are all empty + allEmpty := true + for _, c := range comments { + if c != "" { + allEmpty = false + break + } + } + + if !allEmpty { + // add a blank line between entries but not at the top + if len(comments) > 0 && n > 0 { + x, err = fmt.Fprintln(w) + if err != nil { + return + } + n += x + } + + for _, c := range comments { + x, err = fmt.Fprintf(w, "%s%s\n", prefix, encode(c, "", enc)) + if err != nil { + return + } + n += x + } + } + } + } + + x, err = fmt.Fprintf(w, "%s = %s\n", encode(key, " :", enc), encode(value, "", enc)) + if err != nil { + return + } + n += x + } + return +} + +// ---------------------------------------------------------------------------- + +// Delete removes the key and its comments. +func (p *Properties) Delete(key string) { + delete(p.m, key) + delete(p.c, key) + newKeys := []string{} + for _, k := range p.k { + if k != key { + newKeys = append(newKeys, key) + } + } + p.k = newKeys +} + +// ---------------------------------------------------------------------------- + +// check expands all values and returns an error if a circular reference or +// a malformed expression was found. +func (p *Properties) check() error { + for _, value := range p.m { + if _, err := p.expand(value); err != nil { + return err + } + } + return nil +} + +func (p *Properties) expand(input string) (string, error) { + // no pre/postfix -> nothing to expand + if p.Prefix == "" && p.Postfix == "" { + return input, nil + } + + return expand(input, make(map[string]bool), p.Prefix, p.Postfix, p.m) +} + +// expand recursively expands expressions of '(prefix)key(postfix)' to their corresponding values. +// The function keeps track of the keys that were already expanded and stops if it +// detects a circular reference or a malformed expression of the form '(prefix)key'. +func expand(s string, keys map[string]bool, prefix, postfix string, values map[string]string) (string, error) { + start := strings.Index(s, prefix) + if start == -1 { + return s, nil + } + + keyStart := start + len(prefix) + keyLen := strings.Index(s[keyStart:], postfix) + if keyLen == -1 { + return "", fmt.Errorf("malformed expression") + } + + end := keyStart + keyLen + len(postfix) - 1 + key := s[keyStart : keyStart+keyLen] + + // fmt.Printf("s:%q pp:%q start:%d end:%d keyStart:%d keyLen:%d key:%q\n", s, prefix + "..." + postfix, start, end, keyStart, keyLen, key) + + if _, ok := keys[key]; ok { + return "", fmt.Errorf("circular reference") + } + + val, ok := values[key] + if !ok { + val = os.Getenv(key) + } + + // remember that we've seen the key + keys[key] = true + + return expand(s[:start]+val+s[end+1:], keys, prefix, postfix, values) +} + +// encode encodes a UTF-8 string to ISO-8859-1 and escapes some characters. +func encode(s string, special string, enc Encoding) string { + switch enc { + case UTF8: + return encodeUtf8(s, special) + case ISO_8859_1: + return encodeIso(s, special) + default: + panic(fmt.Sprintf("unsupported encoding %v", enc)) + } +} + +func encodeUtf8(s string, special string) string { + v := "" + for pos := 0; pos < len(s); { + r, w := utf8.DecodeRuneInString(s[pos:]) + pos += w + v += escape(r, special) + } + return v +} + +func encodeIso(s string, special string) string { + var r rune + var w int + var v string + for pos := 0; pos < len(s); { + switch r, w = utf8.DecodeRuneInString(s[pos:]); { + case r < 1<<8: // single byte rune -> escape special chars only + v += escape(r, special) + case r < 1<<16: // two byte rune -> unicode literal + v += fmt.Sprintf("\\u%04x", r) + default: // more than two bytes per rune -> can't encode + v += "?" + } + pos += w + } + return v +} + +func escape(r rune, special string) string { + switch r { + case '\f': + return "\\f" + case '\n': + return "\\n" + case '\r': + return "\\r" + case '\t': + return "\\t" + default: + if strings.ContainsRune(special, r) { + return "\\" + string(r) + } + return string(r) + } +} + +func invalidKeyError(key string) error { + return fmt.Errorf("unknown property: %s", key) +} diff --git a/vendor/github.com/magiconair/properties/rangecheck.go b/vendor/github.com/magiconair/properties/rangecheck.go new file mode 100644 index 0000000..d9ce280 --- /dev/null +++ b/vendor/github.com/magiconair/properties/rangecheck.go @@ -0,0 +1,31 @@ +// Copyright 2016 Frank Schroeder. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package properties + +import ( + "fmt" + "math" +) + +// make this a var to overwrite it in a test +var is32Bit = ^uint(0) == math.MaxUint32 + +// intRangeCheck checks if the value fits into the int type and +// panics if it does not. +func intRangeCheck(key string, v int64) int { + if is32Bit && (v < math.MinInt32 || v > math.MaxInt32) { + panic(fmt.Sprintf("Value %d for key %s out of range", v, key)) + } + return int(v) +} + +// uintRangeCheck checks if the value fits into the uint type and +// panics if it does not. +func uintRangeCheck(key string, v uint64) uint { + if is32Bit && v > math.MaxUint32 { + panic(fmt.Sprintf("Value %d for key %s out of range", v, key)) + } + return uint(v) +} |