From 54d3d47daf9190275bbdaf8703b84969a4593451 Mon Sep 17 00:00:00 2001 From: Corey Hulen Date: Fri, 24 Mar 2017 23:31:34 -0700 Subject: PLT-6076 Adding viper libs for config file changes (#5871) * Adding viper libs for config file changes * Removing the old fsnotify lib * updating some missing libs --- vendor/github.com/magiconair/properties/load.go | 241 ++++++++++++++++++++++++ 1 file changed, 241 insertions(+) create mode 100644 vendor/github.com/magiconair/properties/load.go (limited to 'vendor/github.com/magiconair/properties/load.go') diff --git a/vendor/github.com/magiconair/properties/load.go b/vendor/github.com/magiconair/properties/load.go new file mode 100644 index 000000000..278cc2ea0 --- /dev/null +++ b/vendor/github.com/magiconair/properties/load.go @@ -0,0 +1,241 @@ +// Copyright 2017 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" + "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) +} + +// LoadMap creates a new Properties struct from a string map. +func LoadMap(m map[string]string) *Properties { + p := NewProperties() + for k, v := range m { + p.Set(k, v) + } + return p +} + +// LoadFile reads a file into a Properties struct. +func LoadFile(filename string, enc Encoding) (*Properties, error) { + return loadAll([]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 loadAll(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 loadAll([]string{url}, UTF8, 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 loadAll(urls, UTF8, ignoreMissing) +} + +// LoadAll reads the content of multiple URLs or files in the given order into a +// Properties struct. If 'ignoreMissing' is true then a 404 status code or missing file will +// not be reported as error. Encoding sets the encoding for files. For the URLs please see +// LoadURL for the Content-Type header and the encoding. +func LoadAll(names []string, enc Encoding, ignoreMissing bool) (*Properties, error) { + return loadAll(names, enc, 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)) +} + +// MustLoadURLs 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)) +} + +// MustLoadAll reads the content of multiple URLs or files in the given order into a +// Properties struct. If 'ignoreMissing' is true then a 404 status code or missing file will +// not be reported as error. Encoding sets the encoding for files. For the URLs please see +// LoadURL for the Content-Type header and the encoding. It panics on error. +func MustLoadAll(names []string, enc Encoding, ignoreMissing bool) *Properties { + return must(LoadAll(names, enc, 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 loadAll(names []string, enc Encoding, ignoreMissing bool) (*Properties, error) { + result := NewProperties() + for _, name := range names { + n, err := expandName(name) + if err != nil { + return nil, err + } + var p *Properties + if strings.HasPrefix(n, "http://") || strings.HasPrefix(n, "https://") { + p, err = loadURL(n, ignoreMissing) + } else { + p, err = loadFile(n, enc, ignoreMissing) + } + if err != nil { + return nil, err + } + result.Merge(p) + + } + return result, result.check() +} + +func loadFile(filename string, enc Encoding, ignoreMissing bool) (*Properties, error) { + data, err := ioutil.ReadFile(filename) + if err != nil { + if ignoreMissing && os.IsNotExist(err) { + LogPrintf("properties: %s not found. skipping", filename) + return NewProperties(), nil + } + return nil, err + } + p, err := parse(convert(data, enc)) + if err != nil { + return nil, err + } + return p, nil +} + +func loadURL(url string, ignoreMissing bool) (*Properties, error) { + resp, err := http.Get(url) + if err != nil { + return nil, fmt.Errorf("properties: error fetching %q. %s", url, err) + } + if resp.StatusCode == 404 && ignoreMissing { + LogPrintf("properties: %s returned %d. skipping", url, resp.StatusCode) + return NewProperties(), nil + } + if resp.StatusCode != 200 { + return nil, fmt.Errorf("properties: %s returned %d", url, resp.StatusCode) + } + body, err := ioutil.ReadAll(resp.Body) + if err != nil { + return nil, fmt.Errorf("properties: %s error reading response. %s", url, err) + } + if err = resp.Body.Close(); err != nil { + return nil, fmt.Errorf("properties: %s error reading response. %s", url, 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) + } + + p, err := parse(convert(body, enc)) + if err != nil { + return nil, err + } + return p, nil +} + +func must(p *Properties, err error) *Properties { + if err != nil { + ErrorHandler(err) + } + return p +} + +// expandName expands ${ENV_VAR} expressions in a name. +// If the environment variable does not exist then it will be replaced +// with an empty string. Malformed expressions like "${ENV_VAR" will +// be reported as error. +func expandName(name string) (string, error) { + return expand(name, 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") +} -- cgit v1.2.3-1-g7c22