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20 Commits
1.3 ... 1.10

Author SHA1 Message Date
Mike Farah
c2000a446b Fixed writeCommands to maintain the same execution as was read in 2017-04-18 15:55:43 +10:00
Mike Farah
08ba0083be formatting 2017-04-18 09:14:06 +10:00
Mike Farah
909b62be54 Fixed ability to grow arrays 2017-04-18 08:53:27 +10:00
Mike Farah
0facf35d60 Fixed test flakeyness with using printf 2017-04-14 12:56:50 +10:00
Mike Farah
a7c4813703 Updated doco 2017-04-14 12:40:03 +10:00
Mike Farah
373e0a5eb7 More tests 2017-04-14 12:39:55 +10:00
Mike Farah
124c57f9d9 README now links to doco 2017-04-13 15:44:31 +10:00
Mike Farah
fb73a793bd Added doco 2017-04-13 15:36:59 +10:00
Mike Farah
c22394b540 Updated readme 2017-04-12 21:30:29 +10:00
Mike Farah
b1ff47022b Updated readme 2017-04-12 21:20:43 +10:00
Mike Farah
82f1230db8 Added "new" command for creating new yaml 2017-04-12 21:10:00 +10:00
Mike Farah
a3190f1504 Refactor write to allow new entries 2017-04-12 20:25:13 +10:00
Mike Farah
44ee869e47 Maintain order 2017-02-27 09:09:29 +11:00
Mike Farah
5d2d37a5f8 Fixed travis script, added Travis banner to readme 2017-02-13 07:55:06 +11:00
Mike Farah
e3fc944709 Added travis config 2017-02-13 07:28:48 +11:00
Mike Farah
6ee9db9a70 Added License (MIT) 2017-02-10 16:00:25 +11:00
Mike Farah
0d75edfb67 Fixed updating array bug (Issue 3 in git) 2017-02-09 13:58:47 +11:00
Mike Farah
037314af8a Merge pull request #2 from chaos95/master
Handle 'index out of range' errors more gracefully
2016-03-19 13:05:57 +11:00
Morgan Larosa
2a283b4ef7 Fix #1 2016-03-16 16:11:06 +11:00
Mike Farah
7ef556f22b Update README.md 2015-11-20 21:42:45 +11:00
42 changed files with 4040 additions and 212 deletions

2
.gitignore vendored
View File

@@ -20,7 +20,7 @@ _cgo_gotypes.go
_cgo_export.*
_testmain.go
coverage.out
*.exe
*.test
*.prof

4
.travis.yml Normal file
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@@ -0,0 +1,4 @@
language: go
go:
- 1.7.x
script: ./ci.sh

19
LICENSE Normal file
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@@ -0,0 +1,19 @@
Copyright (c) 2017 Mike Farah
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

184
README.md
View File

@@ -1,175 +1,45 @@
# yaml
yaml is a lightweight and flexible command-line YAML processor
# yaml [![Build Status](https://travis-ci.org/mikefarah/yaml.svg?branch=master)](https://travis-ci.org/mikefarah/yaml)
yaml is a lightweight and portable command-line YAML processor
The aim of the project is to be the [jq](https://github.com/stedolan/jq) or sed of yaml files.
## Install
[Download latest binary](https://github.com/mikefarah/yaml/releases/latest) or alternatively:
```
go get github.com/mikefarah/yaml
```
## Features
- Written in portable go, so you can download a lovely dependency free binary
- Deep read a yaml file with a given path
- Update a yaml file given a path
- Update a yaml file given a script file
- Update creates any missing entries in the path on the fly
- Create a yaml file given a deep path and value
- Create a yaml file given a script file
- Convert from json to yaml
- Convert from yaml to json
- Pipe data in by using '-'
[Download latest binary](https://github.com/mikefarah/yaml/releases/latest) or alternatively:
```
go get github.com/mikefarah/yaml
```
## [Usage](http://mikefarah.github.io/yaml/)
## Read examples
```
yaml r <yaml file> <path>
```
Check out the [documentation](http://mikefarah.github.io/yaml/) for more detailed and advanced usage.
### Basic
Given a sample.yaml file of:
```yaml
b:
c: 2
```
then
```bash
yaml r sample.yaml b.c
```
will output the value of '2'.
Usage:
yaml [command]
### Reading from STDIN
Given a sample.yaml file of:
```bash
cat sample.yaml | yaml r - b.c
```
will output the value of '2'.
Available Commands:
read yaml r sample.yaml a.b.c
write yaml w [--inplace/-i] [--script/-s script_file] sample.yaml a.b.c newValueForC
new yaml n [--script/-s script_file] a.b.c newValueForC
### Splat
Given a sample.yaml file of:
```yaml
---
bob:
item1:
cats: bananas
item2:
cats: apples
```
then
```bash
yaml r sample.yaml bob.*.cats
```
will output
```yaml
- bananas
- apples
```
Flags:
-J, --fromjson[=false]: input as json
-h, --help[=false]: help for yaml
-j, --tojson[=false]: output as json
-t, --trim[=true]: trim yaml output
-v, --verbose[=false]: verbose mode
### Handling '.' in the yaml key
Given a sample.yaml file of:
```yaml
b.x:
c: 2
Use "yaml [command] --help" for more information about a command.
```
then
```bash
yaml r sample.yaml \"b.x\".c
```
will output the value of '2'.
### Arrays
You can give an index to access a specific element:
e.g.: given a sample file of
```yaml
b:
e:
- name: fred
value: 3
- name: sam
value: 4
```
then
```
yaml r sample.yaml b.e[1].name
```
will output 'sam'
### Array Splat
e.g.: given a sample file of
```yaml
b:
e:
- name: fred
value: 3
- name: sam
value: 4
```
then
```
yaml r sample.yaml b.e[*].name
```
will output:
```
- fred
- sam
```
## Update examples
### Update to stdout
Given a sample.yaml file of:
```yaml
b:
c: 2
```
then
```bash
yaml w sample.yaml b.c cat
```
will output:
```yaml
b:
c: cat
```
### Updating yaml in-place
Given a sample.yaml file of:
```yaml
b:
c: 2
```
then
```bash
yaml w -i sample.yaml b.c cat
```
will update the sample.yaml file so that the value of 'c' is cat.
### Updating multiple values with a script
Given a sample.yaml file of:
```yaml
b:
c: 2
e:
- name: Billy Bob
```
and a script update_instructions.yaml of:
```yaml
b.c: 3
b.e[0].name: Howdy Partner
```
then
```bash
yaml w -s update_instructions.yaml sample.yaml
```
will output:
```yaml
b:
c: 3
e:
- name: Howdy Partner
```
## Converting to and from json
### Yaml2json
To convert output to json, use the --tojson (or -j) flag. This can be used with any command.
### json2yaml
To read in json, use the --fromjson (or -J) flag. This can be used with any command.

15
ci.sh Executable file
View File

@@ -0,0 +1,15 @@
#!/bin/bash
set -e
go test
go build
# acceptance test
X=$(./yaml w sample.yaml b.c 3 | ./yaml r - b.c)
if [ $X != 3 ]
then
echo "Failed acceptance test: expected 2 but was $X"
exit 1
fi

View File

@@ -1,38 +1,121 @@
package main
import (
// "fmt"
"github.com/mikefarah/yaml/Godeps/_workspace/src/gopkg.in/yaml.v2"
"strconv"
)
func write(context map[interface{}]interface{}, head string, tail []string, value interface{}) {
if len(tail) == 0 {
context[head] = value
} else {
// e.g. if updating a.b.c, we need to get the 'b' map...
toUpdate := readMap(context, head, tail[0:len(tail)-1]).(map[interface{}]interface{})
// and then set the 'c' key.
key := (tail[len(tail)-1])
toUpdate[key] = value
func entryInSlice(context yaml.MapSlice, key interface{}) *yaml.MapItem {
for idx := range context {
var entry = &context[idx]
if entry.Key == key {
return entry
}
}
return nil
}
func readMap(context map[interface{}]interface{}, head string, tail []string) interface{} {
func writeMap(context interface{}, paths []string, value interface{}) yaml.MapSlice {
log.Debugf("writeMap for %v for %v with value %v\n", paths, context, value)
var mapSlice yaml.MapSlice
switch context.(type) {
case yaml.MapSlice:
mapSlice = context.(yaml.MapSlice)
default:
mapSlice = make(yaml.MapSlice, 0)
}
if len(paths) == 0 {
return mapSlice
}
child := entryInSlice(mapSlice, paths[0])
if child == nil {
newChild := yaml.MapItem{Key: paths[0]}
mapSlice = append(mapSlice, newChild)
child = entryInSlice(mapSlice, paths[0])
log.Debugf("\tAppended child at %v for mapSlice %v\n", paths[0], mapSlice)
}
log.Debugf("\tchild.Value %v\n", child.Value)
remainingPaths := paths[1:len(paths)]
child.Value = updatedChildValue(child.Value, remainingPaths, value)
log.Debugf("\tReturning mapSlice %v\n", mapSlice)
return mapSlice
}
func updatedChildValue(child interface{}, remainingPaths []string, value interface{}) interface{} {
if len(remainingPaths) == 0 {
return value
}
_, nextIndexErr := strconv.ParseInt(remainingPaths[0], 10, 64)
if nextIndexErr != nil {
// must be a map
return writeMap(child, remainingPaths, value)
}
// must be an array
return writeArray(child, remainingPaths, value)
}
func writeArray(context interface{}, paths []string, value interface{}) []interface{} {
log.Debugf("writeArray for %v for %v with value %v\n", paths, context, value)
var array []interface{}
switch context.(type) {
case []interface{}:
array = context.([]interface{})
default:
array = make([]interface{}, 1)
}
if len(paths) == 0 {
return array
}
log.Debugf("\tarray %v\n", array)
rawIndex := paths[0]
index, err := strconv.ParseInt(rawIndex, 10, 64)
if err != nil {
die("Error accessing array: %v", err)
}
for index >= int64(len(array)) {
array = append(array, nil)
}
currentChild := array[index]
log.Debugf("\tcurrentChild %v\n", currentChild)
remainingPaths := paths[1:len(paths)]
array[index] = updatedChildValue(currentChild, remainingPaths, value)
log.Debugf("\tReturning array %v\n", array)
return array
}
func readMap(context yaml.MapSlice, head string, tail []string) interface{} {
if head == "*" {
return readMapSplat(context, tail)
}
value := context[head]
var value interface{}
entry := entryInSlice(context, head)
if entry != nil {
value = entry.Value
}
return calculateValue(value, tail)
}
func readMapSplat(context map[interface{}]interface{}, tail []string) interface{} {
func readMapSplat(context yaml.MapSlice, tail []string) interface{} {
var newArray = make([]interface{}, len(context))
var i = 0
for _, value := range context {
for _, entry := range context {
if len(tail) > 0 {
newArray[i] = recurse(value, tail[0], tail[1:len(tail)])
newArray[i] = recurse(entry.Value, tail[0], tail[1:len(tail)])
} else {
newArray[i] = value
newArray[i] = entry.Value
}
i++
}
@@ -50,15 +133,15 @@ func recurse(value interface{}, head string, tail []string) interface{} {
die("Error accessing array: %v", err)
}
return readArray(value.([]interface{}), index, tail)
case map[interface{}]interface{}:
return readMap(value.(map[interface{}]interface{}), head, tail)
case yaml.MapSlice:
return readMap(value.(yaml.MapSlice), head, tail)
default:
return nil
}
}
func readArray(array []interface{}, head int64, tail []string) interface{} {
if head > int64(len(array)) {
if head >= int64(len(array)) {
return nil
}

View File

@@ -2,10 +2,19 @@ package main
import (
"fmt"
"github.com/mikefarah/yaml/Godeps/_workspace/src/gopkg.in/yaml.v2"
"github.com/op/go-logging"
"os"
"sort"
"testing"
)
func TestMain(m *testing.M) {
backend.SetLevel(logging.ERROR, "")
logging.SetBackend(backend)
os.Exit(m.Run())
}
func TestReadMap_simple(t *testing.T) {
var data = parseData(`
---
@@ -83,6 +92,17 @@ b:
assertResult(t, nil, readMap(data, "b", []string{"d", "3"}))
}
func TestReadMap_with_array_out_of_bounds_by_1(t *testing.T) {
var data = parseData(`
---
b:
d:
- 3
- 4
`)
assertResult(t, nil, readMap(data, "b", []string{"d", "2"}))
}
func TestReadMap_with_array_splat(t *testing.T) {
var data = parseData(`
e:
@@ -96,16 +116,108 @@ e:
assertResult(t, "[Fred Sam]", fmt.Sprintf("%v", readMap(data, "e", []string{"*", "name"})))
}
func TestWrite_really_simple(t *testing.T) {
var data = parseData(`
b: 2
`)
updated := writeMap(data, []string{"b"}, "4")
b := entryInSlice(updated, "b").Value
assertResult(t, "4", b)
}
func TestWrite_simple(t *testing.T) {
var data = parseData(`
b:
c: 2
`)
write(data, "b", []string{"c"}, "4")
updated := writeMap(data, []string{"b", "c"}, "4")
b := entryInSlice(updated, "b").Value.(yaml.MapSlice)
c := entryInSlice(b, "c").Value
assertResult(t, "4", c)
}
b := data["b"].(map[interface{}]interface{})
assertResult(t, "4", b["c"].(string))
func TestWrite_new(t *testing.T) {
var data = parseData(`
b:
c: 2
`)
updated := writeMap(data, []string{"b", "d"}, "4")
b := entryInSlice(updated, "b").Value.(yaml.MapSlice)
d := entryInSlice(b, "d").Value
assertResult(t, "4", d)
}
func TestWrite_new_deep(t *testing.T) {
var data = parseData(`
b:
c: 2
`)
updated := writeMap(data, []string{"b", "d", "f"}, "4")
assertResult(t, "4", readMap(updated, "b", []string{"d", "f"}))
}
func TestWrite_array(t *testing.T) {
var data = parseData(`
b:
- aa
`)
updated := writeMap(data, []string{"b", "0"}, "bb")
b := entryInSlice(updated, "b").Value.([]interface{})
assertResult(t, "bb", b[0].(string))
}
func TestWrite_new_array(t *testing.T) {
var data = parseData(`
b:
c: 2
`)
updated := writeMap(data, []string{"b", "0"}, "4")
assertResult(t, "4", readMap(updated, "b", []string{"0"}))
}
func TestWrite_new_array_deep(t *testing.T) {
var data = parseData(`
b:
c: 2
`)
var expected = `b:
- c: "4"`
updated := writeMap(data, []string{"b", "0", "c"}, "4")
assertResult(t, expected, yamlToString(updated))
}
func TestWrite_new_map_array_deep(t *testing.T) {
var data = parseData(`
b:
c: 2
`)
updated := writeMap(data, []string{"b", "d", "0"}, "4")
assertResult(t, "4", readMap(updated, "b", []string{"d", "0"}))
}
func TestWrite_add_to_array(t *testing.T) {
var data = parseData(`
b:
- aa
`)
var expected = `b:
- aa
- bb`
updated := writeMap(data, []string{"b", "1"}, "bb")
assertResult(t, expected, yamlToString(updated))
}
func TestWrite_with_no_tail(t *testing.T) {
@@ -113,8 +225,24 @@ func TestWrite_with_no_tail(t *testing.T) {
b:
c: 2
`)
write(data, "b", []string{}, "4")
updated := writeMap(data, []string{"b"}, "4")
b := data["b"]
b := entryInSlice(updated, "b").Value
assertResult(t, "4", fmt.Sprintf("%v", b))
}
func TestWriteMap_no_paths(t *testing.T) {
var data = parseData(`
b: 5
`)
result := writeMap(data, []string{}, 4)
assertResult(t, fmt.Sprintf("%v", data), fmt.Sprintf("%v", result))
}
func TestWriteArray_no_paths(t *testing.T) {
var data = make([]interface{}, 1)
data[0] = "mike"
result := writeArray(data, []string{}, 4)
assertResult(t, fmt.Sprintf("%v", data), fmt.Sprintf("%v", result))
}

297
docs/404.html Normal file
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@@ -0,0 +1,297 @@
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<html class="no-js">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<link rel="shortcut icon" href="/assets/images/favicon.png">
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<title>Yaml</title>
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<h1>Create</h1>
<p>Yaml files can be created using the 'new' command. This works in the same way as the write command, but you don't pass in an existing Yaml file.</p>
<pre><code>yaml n &lt;path&gt; &lt;new value&gt;
</code></pre>
<h3 id="creating-a-simple-yaml-file">Creating a simple yaml file</h3>
<pre><code class="bash">yaml n b.c cat
</code></pre>
<p>will output:</p>
<pre><code class="yaml">b:
c: cat
</code></pre>
<h3 id="creating-using-a-create-script">Creating using a create script</h3>
<p>Create scripts follow the same format as the update scripts.</p>
<p>Given a script create_instructions.yaml of:</p>
<pre><code class="yaml">b.c: 3
b.e[0].name: Howdy Partner
</code></pre>
<p>then</p>
<pre><code class="bash">yaml n -s create_instructions.yaml
</code></pre>
<p>will output:</p>
<pre><code class="yaml">b:
c: 3
e:
- name: Howdy Partner
</code></pre>
<p>You can also pipe the instructions in:</p>
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</code></pre>
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<h1 id="yaml">yaml</h1>
<p>yaml is a lightweight and flexible command-line YAML processor</p>
<p>The aim of the project is to be the <a href="https://github.com/stedolan/jq">jq</a> or sed of yaml files.</p>
<h3 id="download-latest-binary"><a href="https://github.com/mikefarah/yaml/releases/latest">download latest binary</a></h3>
<h3 id="get-the-source">get the source</h3>
<pre><code class="bash">go get github.com/mikefarah/yaml
</code></pre>
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View File

@@ -0,0 +1,4 @@
<article>
<h3><a href="{{location}}">{{title}}</a></h3>
<p>{{summary}}</p>
</article>

88
docs/mkdocs/js/search.js Normal file
View File

@@ -0,0 +1,88 @@
require([
base_url + '/mkdocs/js/mustache.min.js',
base_url + '/mkdocs/js/lunr.min.js',
'text!search-results-template.mustache',
'text!../search_index.json',
], function (Mustache, lunr, results_template, data) {
"use strict";
function getSearchTerm()
{
var sPageURL = window.location.search.substring(1);
var sURLVariables = sPageURL.split('&');
for (var i = 0; i < sURLVariables.length; i++)
{
var sParameterName = sURLVariables[i].split('=');
if (sParameterName[0] == 'q')
{
return decodeURIComponent(sParameterName[1].replace(/\+/g, '%20'));
}
}
}
var index = lunr(function () {
this.field('title', {boost: 10});
this.field('text');
this.ref('location');
});
data = JSON.parse(data);
var documents = {};
for (var i=0; i < data.docs.length; i++){
var doc = data.docs[i];
doc.location = base_url + doc.location;
index.add(doc);
documents[doc.location] = doc;
}
var search = function(){
var query = document.getElementById('mkdocs-search-query').value;
var search_results = document.getElementById("mkdocs-search-results");
while (search_results.firstChild) {
search_results.removeChild(search_results.firstChild);
}
if(query === ''){
return;
}
var results = index.search(query);
if (results.length > 0){
for (var i=0; i < results.length; i++){
var result = results[i];
doc = documents[result.ref];
doc.base_url = base_url;
doc.summary = doc.text.substring(0, 200);
var html = Mustache.to_html(results_template, doc);
search_results.insertAdjacentHTML('beforeend', html);
}
} else {
search_results.insertAdjacentHTML('beforeend', "<p>No results found</p>");
}
if(jQuery){
/*
* We currently only automatically hide bootstrap models. This
* requires jQuery to work.
*/
jQuery('#mkdocs_search_modal a').click(function(){
jQuery('#mkdocs_search_modal').modal('hide');
});
}
};
var search_input = document.getElementById('mkdocs-search-query');
var term = getSearchTerm();
if (term){
search_input.value = term;
search();
}
search_input.addEventListener("keyup", search);
});

390
docs/mkdocs/js/text.js Normal file
View File

@@ -0,0 +1,390 @@
/**
* @license RequireJS text 2.0.12 Copyright (c) 2010-2014, The Dojo Foundation All Rights Reserved.
* Available via the MIT or new BSD license.
* see: http://github.com/requirejs/text for details
*/
/*jslint regexp: true */
/*global require, XMLHttpRequest, ActiveXObject,
define, window, process, Packages,
java, location, Components, FileUtils */
define(['module'], function (module) {
'use strict';
var text, fs, Cc, Ci, xpcIsWindows,
progIds = ['Msxml2.XMLHTTP', 'Microsoft.XMLHTTP', 'Msxml2.XMLHTTP.4.0'],
xmlRegExp = /^\s*<\?xml(\s)+version=[\'\"](\d)*.(\d)*[\'\"](\s)*\?>/im,
bodyRegExp = /<body[^>]*>\s*([\s\S]+)\s*<\/body>/im,
hasLocation = typeof location !== 'undefined' && location.href,
defaultProtocol = hasLocation && location.protocol && location.protocol.replace(/\:/, ''),
defaultHostName = hasLocation && location.hostname,
defaultPort = hasLocation && (location.port || undefined),
buildMap = {},
masterConfig = (module.config && module.config()) || {};
text = {
version: '2.0.12',
strip: function (content) {
//Strips <?xml ...?> declarations so that external SVG and XML
//documents can be added to a document without worry. Also, if the string
//is an HTML document, only the part inside the body tag is returned.
if (content) {
content = content.replace(xmlRegExp, "");
var matches = content.match(bodyRegExp);
if (matches) {
content = matches[1];
}
} else {
content = "";
}
return content;
},
jsEscape: function (content) {
return content.replace(/(['\\])/g, '\\$1')
.replace(/[\f]/g, "\\f")
.replace(/[\b]/g, "\\b")
.replace(/[\n]/g, "\\n")
.replace(/[\t]/g, "\\t")
.replace(/[\r]/g, "\\r")
.replace(/[\u2028]/g, "\\u2028")
.replace(/[\u2029]/g, "\\u2029");
},
createXhr: masterConfig.createXhr || function () {
//Would love to dump the ActiveX crap in here. Need IE 6 to die first.
var xhr, i, progId;
if (typeof XMLHttpRequest !== "undefined") {
return new XMLHttpRequest();
} else if (typeof ActiveXObject !== "undefined") {
for (i = 0; i < 3; i += 1) {
progId = progIds[i];
try {
xhr = new ActiveXObject(progId);
} catch (e) {}
if (xhr) {
progIds = [progId]; // so faster next time
break;
}
}
}
return xhr;
},
/**
* Parses a resource name into its component parts. Resource names
* look like: module/name.ext!strip, where the !strip part is
* optional.
* @param {String} name the resource name
* @returns {Object} with properties "moduleName", "ext" and "strip"
* where strip is a boolean.
*/
parseName: function (name) {
var modName, ext, temp,
strip = false,
index = name.indexOf("."),
isRelative = name.indexOf('./') === 0 ||
name.indexOf('../') === 0;
if (index !== -1 && (!isRelative || index > 1)) {
modName = name.substring(0, index);
ext = name.substring(index + 1, name.length);
} else {
modName = name;
}
temp = ext || modName;
index = temp.indexOf("!");
if (index !== -1) {
//Pull off the strip arg.
strip = temp.substring(index + 1) === "strip";
temp = temp.substring(0, index);
if (ext) {
ext = temp;
} else {
modName = temp;
}
}
return {
moduleName: modName,
ext: ext,
strip: strip
};
},
xdRegExp: /^((\w+)\:)?\/\/([^\/\\]+)/,
/**
* Is an URL on another domain. Only works for browser use, returns
* false in non-browser environments. Only used to know if an
* optimized .js version of a text resource should be loaded
* instead.
* @param {String} url
* @returns Boolean
*/
useXhr: function (url, protocol, hostname, port) {
var uProtocol, uHostName, uPort,
match = text.xdRegExp.exec(url);
if (!match) {
return true;
}
uProtocol = match[2];
uHostName = match[3];
uHostName = uHostName.split(':');
uPort = uHostName[1];
uHostName = uHostName[0];
return (!uProtocol || uProtocol === protocol) &&
(!uHostName || uHostName.toLowerCase() === hostname.toLowerCase()) &&
((!uPort && !uHostName) || uPort === port);
},
finishLoad: function (name, strip, content, onLoad) {
content = strip ? text.strip(content) : content;
if (masterConfig.isBuild) {
buildMap[name] = content;
}
onLoad(content);
},
load: function (name, req, onLoad, config) {
//Name has format: some.module.filext!strip
//The strip part is optional.
//if strip is present, then that means only get the string contents
//inside a body tag in an HTML string. For XML/SVG content it means
//removing the <?xml ...?> declarations so the content can be inserted
//into the current doc without problems.
// Do not bother with the work if a build and text will
// not be inlined.
if (config && config.isBuild && !config.inlineText) {
onLoad();
return;
}
masterConfig.isBuild = config && config.isBuild;
var parsed = text.parseName(name),
nonStripName = parsed.moduleName +
(parsed.ext ? '.' + parsed.ext : ''),
url = req.toUrl(nonStripName),
useXhr = (masterConfig.useXhr) ||
text.useXhr;
// Do not load if it is an empty: url
if (url.indexOf('empty:') === 0) {
onLoad();
return;
}
//Load the text. Use XHR if possible and in a browser.
if (!hasLocation || useXhr(url, defaultProtocol, defaultHostName, defaultPort)) {
text.get(url, function (content) {
text.finishLoad(name, parsed.strip, content, onLoad);
}, function (err) {
if (onLoad.error) {
onLoad.error(err);
}
});
} else {
//Need to fetch the resource across domains. Assume
//the resource has been optimized into a JS module. Fetch
//by the module name + extension, but do not include the
//!strip part to avoid file system issues.
req([nonStripName], function (content) {
text.finishLoad(parsed.moduleName + '.' + parsed.ext,
parsed.strip, content, onLoad);
});
}
},
write: function (pluginName, moduleName, write, config) {
if (buildMap.hasOwnProperty(moduleName)) {
var content = text.jsEscape(buildMap[moduleName]);
write.asModule(pluginName + "!" + moduleName,
"define(function () { return '" +
content +
"';});\n");
}
},
writeFile: function (pluginName, moduleName, req, write, config) {
var parsed = text.parseName(moduleName),
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fileName = req.toUrl(parsed.moduleName + extPart) + '.js';
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text.load(nonStripName, req, function (value) {
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//But need to create shell that translates writeFile's
//write() to the right interface.
var textWrite = function (contents) {
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textWrite.asModule = function (moduleName, contents) {
return write.asModule(moduleName, fileName, contents);
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text.write(pluginName, nonStripName, textWrite, config);
}, config);
}
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if (masterConfig.env === 'node' || (!masterConfig.env &&
typeof process !== "undefined" &&
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callback(file);
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errback(e);
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text.createXhr())) {
text.get = function (url, callback, errback, headers) {
var xhr = text.createXhr(), header;
xhr.open('GET', url, true);
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for (header in headers) {
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//Allow overrides specified in config
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masterConfig.onXhr(xhr, url);
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xhr.onreadystatechange = function (evt) {
var status, err;
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if (status > 399 && status < 600) {
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err = new Error(url + ' HTTP status: ' + status);
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if (errback) {
errback(err);
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callback(xhr.responseText);
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if (masterConfig.onXhrComplete) {
masterConfig.onXhrComplete(xhr, url);
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xhr.send(null);
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text.get = function (url, callback) {
var stringBuffer, line,
encoding = "utf-8",
file = new java.io.File(url),
lineSeparator = java.lang.System.getProperty("line.separator"),
input = new java.io.BufferedReader(new java.io.InputStreamReader(new java.io.FileInputStream(file), encoding)),
content = '';
try {
stringBuffer = new java.lang.StringBuffer();
line = input.readLine();
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// http://www.unicode.org/faq/utf_bom.html
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content = String(stringBuffer.toString()); //String
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input.close();
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callback(content);
};
} else if (masterConfig.env === 'xpconnect' || (!masterConfig.env &&
typeof Components !== 'undefined' && Components.classes &&
Components.interfaces)) {
//Avert your gaze!
Cc = Components.classes;
Ci = Components.interfaces;
Components.utils['import']('resource://gre/modules/FileUtils.jsm');
xpcIsWindows = ('@mozilla.org/windows-registry-key;1' in Cc);
text.get = function (url, callback) {
var inStream, convertStream, fileObj,
readData = {};
if (xpcIsWindows) {
url = url.replace(/\//g, '\\');
}
fileObj = new FileUtils.File(url);
//XPCOM, you so crazy
try {
inStream = Cc['@mozilla.org/network/file-input-stream;1']
.createInstance(Ci.nsIFileInputStream);
inStream.init(fileObj, 1, 0, false);
convertStream = Cc['@mozilla.org/intl/converter-input-stream;1']
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convertStream.init(inStream, "utf-8", inStream.available(),
Ci.nsIConverterInputStream.DEFAULT_REPLACEMENT_CHARACTER);
convertStream.readString(inStream.available(), readData);
convertStream.close();
inStream.close();
callback(readData.value);
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throw new Error((fileObj && fileObj.path || '') + ': ' + e);
}
};
}
return text;
});

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{
"docs": [
{
"location": "/",
"text": "yaml\n\n\nyaml is a lightweight and flexible command-line YAML processor\n\n\nThe aim of the project is to be the \njq\n or sed of yaml files.\n\n\ndownload latest binary\n\n\nget the source\n\n\ngo get github.com/mikefarah/yaml\n\n\n\n\n.zip\n or \ntar.gz\n\n\nView on GitHub",
"title": "Install"
},
{
"location": "/#yaml",
"text": "yaml is a lightweight and flexible command-line YAML processor The aim of the project is to be the jq or sed of yaml files.",
"title": "yaml"
},
{
"location": "/#download-latest-binary",
"text": "",
"title": "download latest binary"
},
{
"location": "/#get-the-source",
"text": "go get github.com/mikefarah/yaml .zip or tar.gz View on GitHub",
"title": "get the source"
},
{
"location": "/read/",
"text": "yaml r \nyaml file\n \npath\n\n\n\n\n\nBasic\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyaml r sample.yaml b.c\n\n\n\n\nwill output the value of '2'.\n\n\nFrom Stdin\n\n\nGiven a sample.yaml file of:\n\n\ncat sample.yaml | yaml r - b.c\n\n\n\n\nwill output the value of '2'.\n\n\nSplat\n\n\nGiven a sample.yaml file of:\n\n\n---\nbob:\n item1:\n cats: bananas\n item2:\n cats: apples\n\n\n\n\nthen\n\n\nyaml r sample.yaml bob.*.cats\n\n\n\n\nwill output\n\n\n- bananas\n- apples\n\n\n\n\nHandling '.' in the yaml key\n\n\nGiven a sample.yaml file of:\n\n\nb.x:\n c: 2\n\n\n\n\nthen\n\n\nyaml r sample.yaml \\\nb.x\\\n.c\n\n\n\n\nwill output the value of '2'.\n\n\nArrays\n\n\nYou can give an index to access a specific element:\ne.g.: given a sample file of\n\n\nb:\n e:\n - name: fred\n value: 3\n - name: sam\n value: 4\n\n\n\n\nthen\n\n\nyaml r sample.yaml b.e[1].name\n\n\n\n\nwill output 'sam'\n\n\nArray Splat\n\n\ne.g.: given a sample file of\n\n\nb:\n e:\n - name: fred\n value: 3\n - name: sam\n value: 4\n\n\n\n\nthen\n\n\nyaml r sample.yaml b.e[*].name\n\n\n\n\nwill output:\n\n\n- fred\n- sam",
"title": "Read"
},
{
"location": "/read/#basic",
"text": "Given a sample.yaml file of: b:\n c: 2 then yaml r sample.yaml b.c will output the value of '2'.",
"title": "Basic"
},
{
"location": "/read/#from-stdin",
"text": "Given a sample.yaml file of: cat sample.yaml | yaml r - b.c will output the value of '2'.",
"title": "From Stdin"
},
{
"location": "/read/#splat",
"text": "Given a sample.yaml file of: ---\nbob:\n item1:\n cats: bananas\n item2:\n cats: apples then yaml r sample.yaml bob.*.cats will output - bananas\n- apples",
"title": "Splat"
},
{
"location": "/read/#handling-in-the-yaml-key",
"text": "Given a sample.yaml file of: b.x:\n c: 2 then yaml r sample.yaml \\ b.x\\ .c will output the value of '2'.",
"title": "Handling '.' in the yaml key"
},
{
"location": "/read/#arrays",
"text": "You can give an index to access a specific element:\ne.g.: given a sample file of b:\n e:\n - name: fred\n value: 3\n - name: sam\n value: 4 then yaml r sample.yaml b.e[1].name will output 'sam'",
"title": "Arrays"
},
{
"location": "/read/#array-splat",
"text": "e.g.: given a sample file of b:\n e:\n - name: fred\n value: 3\n - name: sam\n value: 4 then yaml r sample.yaml b.e[*].name will output: - fred\n- sam",
"title": "Array Splat"
},
{
"location": "/write/",
"text": "yaml w \nyaml file\n \npath\n \nnew value\n\n\n\n\n\nTo Stdout\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyaml w sample.yaml b.c cat\n\n\n\n\nwill output:\n\n\nb:\n c: cat\n\n\n\n\nFrom STDIN\n\n\ncat sample.yaml | yaml w - b.c blah\n\n\n\n\nAdding new fields\n\n\nAny missing fields in the path will be created on the fly.\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyaml w sample.yaml b.d[0] \nnew thing\n\n\n\n\n\nwill output:\n\n\nb:\n c: cat\n d:\n - new thing\n\n\n\n\nUpdating files in-place\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyaml w -i sample.yaml b.c cat\n\n\n\n\nwill update the sample.yaml file so that the value of 'c' is cat.\n\n\nUpdating multiple values with a script\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n e:\n - name: Billy Bob\n\n\n\n\nand a script update_instructions.yaml of:\n\n\nb.c: 3\nb.e[0].name: Howdy Partner\n\n\n\n\nthen\n\n\nyaml w -s update_instructions.yaml sample.yaml\n\n\n\n\nwill output:\n\n\nb:\n c: 3\n e:\n - name: Howdy Partner\n\n\n\n\nAnd, of course, you can pipe the instructions in using '-':\n\n\ncat update_instructions.yaml | yaml w -s - sample.yaml",
"title": "Write/Update"
},
{
"location": "/write/#to-stdout",
"text": "Given a sample.yaml file of: b:\n c: 2 then yaml w sample.yaml b.c cat will output: b:\n c: cat",
"title": "To Stdout"
},
{
"location": "/write/#from-stdin",
"text": "cat sample.yaml | yaml w - b.c blah",
"title": "From STDIN"
},
{
"location": "/write/#adding-new-fields",
"text": "Any missing fields in the path will be created on the fly. Given a sample.yaml file of: b:\n c: 2 then yaml w sample.yaml b.d[0] new thing will output: b:\n c: cat\n d:\n - new thing",
"title": "Adding new fields"
},
{
"location": "/write/#updating-files-in-place",
"text": "Given a sample.yaml file of: b:\n c: 2 then yaml w -i sample.yaml b.c cat will update the sample.yaml file so that the value of 'c' is cat.",
"title": "Updating files in-place"
},
{
"location": "/write/#updating-multiple-values-with-a-script",
"text": "Given a sample.yaml file of: b:\n c: 2\n e:\n - name: Billy Bob and a script update_instructions.yaml of: b.c: 3\nb.e[0].name: Howdy Partner then yaml w -s update_instructions.yaml sample.yaml will output: b:\n c: 3\n e:\n - name: Howdy Partner And, of course, you can pipe the instructions in using '-': cat update_instructions.yaml | yaml w -s - sample.yaml",
"title": "Updating multiple values with a script"
},
{
"location": "/create/",
"text": "Yaml files can be created using the 'new' command. This works in the same way as the write command, but you don't pass in an existing Yaml file.\n\n\nyaml n \npath\n \nnew value\n\n\n\n\n\nCreating a simple yaml file\n\n\nyaml n b.c cat\n\n\n\n\nwill output:\n\n\nb:\n c: cat\n\n\n\n\nCreating using a create script\n\n\nCreate scripts follow the same format as the update scripts.\n\n\nGiven a script create_instructions.yaml of:\n\n\nb.c: 3\nb.e[0].name: Howdy Partner\n\n\n\n\nthen\n\n\nyaml n -s create_instructions.yaml\n\n\n\n\nwill output:\n\n\nb:\n c: 3\n e:\n - name: Howdy Partner\n\n\n\n\nYou can also pipe the instructions in:\n\n\ncat create_instructions.yaml | yaml n -s -",
"title": "Create"
},
{
"location": "/create/#creating-a-simple-yaml-file",
"text": "yaml n b.c cat will output: b:\n c: cat",
"title": "Creating a simple yaml file"
},
{
"location": "/create/#creating-using-a-create-script",
"text": "Create scripts follow the same format as the update scripts. Given a script create_instructions.yaml of: b.c: 3\nb.e[0].name: Howdy Partner then yaml n -s create_instructions.yaml will output: b:\n c: 3\n e:\n - name: Howdy Partner You can also pipe the instructions in: cat create_instructions.yaml | yaml n -s -",
"title": "Creating using a create script"
},
{
"location": "/convert/",
"text": "Yaml2json\n\n\nTo convert output to json, use the --tojson (or -j) flag. This can be used with any command.\n\n\njson2yaml\n\n\nTo read in json, use the --fromjson (or -J) flag. This can be used with any command.",
"title": "Convert"
},
{
"location": "/convert/#yaml2json",
"text": "To convert output to json, use the --tojson (or -j) flag. This can be used with any command.",
"title": "Yaml2json"
},
{
"location": "/convert/#json2yaml",
"text": "To read in json, use the --fromjson (or -J) flag. This can be used with any command.",
"title": "json2yaml"
}
]
}

553
docs/read/index.html Normal file
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<a href="#basic" title="Basic" class="md-nav__link">
Basic
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<a href="#from-stdin" title="From Stdin" class="md-nav__link">
From Stdin
</a>
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<li class="md-nav__item">
<a href="#splat" title="Splat" class="md-nav__link">
Splat
</a>
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<a href="#handling-in-the-yaml-key" title="Handling '.' in the yaml key" class="md-nav__link">
Handling '.' in the yaml key
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<a href="#arrays" title="Arrays" class="md-nav__link">
Arrays
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<a href="#array-splat" title="Array Splat" class="md-nav__link">
Array Splat
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Write/Update
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Create
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Convert
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<a href="#basic" title="Basic" class="md-nav__link">
Basic
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<a href="#from-stdin" title="From Stdin" class="md-nav__link">
From Stdin
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<a href="#splat" title="Splat" class="md-nav__link">
Splat
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Handling '.' in the yaml key
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<a href="#arrays" title="Arrays" class="md-nav__link">
Arrays
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<a href="#array-splat" title="Array Splat" class="md-nav__link">
Array Splat
</a>
</li>
</ul>
</nav>
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<div class="md-content">
<article class="md-content__inner md-typeset">
<h1>Read</h1>
<pre><code>yaml r &lt;yaml file&gt; &lt;path&gt;
</code></pre>
<h3 id="basic">Basic</h3>
<p>Given a sample.yaml file of:</p>
<pre><code class="yaml">b:
c: 2
</code></pre>
<p>then</p>
<pre><code class="bash">yaml r sample.yaml b.c
</code></pre>
<p>will output the value of '2'.</p>
<h3 id="from-stdin">From Stdin</h3>
<p>Given a sample.yaml file of:</p>
<pre><code class="bash">cat sample.yaml | yaml r - b.c
</code></pre>
<p>will output the value of '2'.</p>
<h3 id="splat">Splat</h3>
<p>Given a sample.yaml file of:</p>
<pre><code class="yaml">---
bob:
item1:
cats: bananas
item2:
cats: apples
</code></pre>
<p>then</p>
<pre><code class="bash">yaml r sample.yaml bob.*.cats
</code></pre>
<p>will output</p>
<pre><code class="yaml">- bananas
- apples
</code></pre>
<h3 id="handling-in-the-yaml-key">Handling '.' in the yaml key</h3>
<p>Given a sample.yaml file of:</p>
<pre><code class="yaml">b.x:
c: 2
</code></pre>
<p>then</p>
<pre><code class="bash">yaml r sample.yaml \&quot;b.x\&quot;.c
</code></pre>
<p>will output the value of '2'.</p>
<h3 id="arrays">Arrays</h3>
<p>You can give an index to access a specific element:
e.g.: given a sample file of</p>
<pre><code class="yaml">b:
e:
- name: fred
value: 3
- name: sam
value: 4
</code></pre>
<p>then</p>
<pre><code>yaml r sample.yaml b.e[1].name
</code></pre>
<p>will output 'sam'</p>
<h3 id="array-splat">Array Splat</h3>
<p>e.g.: given a sample file of</p>
<pre><code class="yaml">b:
e:
- name: fred
value: 3
- name: sam
value: 4
</code></pre>
<p>then</p>
<pre><code>yaml r sample.yaml b.e[*].name
</code></pre>
<p>will output:</p>
<pre><code>- fred
- sam
</code></pre>
</article>
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Write/Update
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<a href="#to-stdout" title="To Stdout" class="md-nav__link">
To Stdout
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<a href="#from-stdin" title="From STDIN" class="md-nav__link">
From STDIN
</a>
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<a href="#adding-new-fields" title="Adding new fields" class="md-nav__link">
Adding new fields
</a>
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<a href="#updating-files-in-place" title="Updating files in-place" class="md-nav__link">
Updating files in-place
</a>
</li>
<li class="md-nav__item">
<a href="#updating-multiple-values-with-a-script" title="Updating multiple values with a script" class="md-nav__link">
Updating multiple values with a script
</a>
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To Stdout
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From STDIN
</a>
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Adding new fields
</a>
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Updating files in-place
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Updating multiple values with a script
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<article class="md-content__inner md-typeset">
<h1>Write/Update</h1>
<pre><code>yaml w &lt;yaml file&gt; &lt;path&gt; &lt;new value&gt;
</code></pre>
<h3 id="to-stdout">To Stdout</h3>
<p>Given a sample.yaml file of:</p>
<pre><code class="yaml">b:
c: 2
</code></pre>
<p>then</p>
<pre><code class="bash">yaml w sample.yaml b.c cat
</code></pre>
<p>will output:</p>
<pre><code class="yaml">b:
c: cat
</code></pre>
<h3 id="from-stdin">From STDIN</h3>
<pre><code class="bash">cat sample.yaml | yaml w - b.c blah
</code></pre>
<h3 id="adding-new-fields">Adding new fields</h3>
<p>Any missing fields in the path will be created on the fly.</p>
<p>Given a sample.yaml file of:</p>
<pre><code class="yaml">b:
c: 2
</code></pre>
<p>then</p>
<pre><code class="bash">yaml w sample.yaml b.d[0] &quot;new thing&quot;
</code></pre>
<p>will output:</p>
<pre><code class="yaml">b:
c: cat
d:
- new thing
</code></pre>
<h3 id="updating-files-in-place">Updating files in-place</h3>
<p>Given a sample.yaml file of:</p>
<pre><code class="yaml">b:
c: 2
</code></pre>
<p>then</p>
<pre><code class="bash">yaml w -i sample.yaml b.c cat
</code></pre>
<p>will update the sample.yaml file so that the value of 'c' is cat.</p>
<h3 id="updating-multiple-values-with-a-script">Updating multiple values with a script</h3>
<p>Given a sample.yaml file of:</p>
<pre><code class="yaml">b:
c: 2
e:
- name: Billy Bob
</code></pre>
<p>and a script update_instructions.yaml of:</p>
<pre><code class="yaml">b.c: 3
b.e[0].name: Howdy Partner
</code></pre>
<p>then</p>
<pre><code class="bash">yaml w -s update_instructions.yaml sample.yaml
</code></pre>
<p>will output:</p>
<pre><code class="yaml">b:
c: 3
e:
- name: Howdy Partner
</code></pre>
<p>And, of course, you can pipe the instructions in using '-':</p>
<pre><code class="bash">cat update_instructions.yaml | yaml w -s - sample.yaml
</code></pre>
</article>
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View File

@@ -2,6 +2,7 @@ package main
import (
"encoding/json"
"github.com/mikefarah/yaml/Godeps/_workspace/src/gopkg.in/yaml.v2"
)
func fromJSONBytes(jsonBytes []byte, parsedData *map[interface{}]interface{}) {
@@ -55,11 +56,11 @@ func toJSON(context interface{}) interface{} {
newArray[index] = toJSON(value)
}
return newArray
case map[interface{}]interface{}:
oldMap := context.(map[interface{}]interface{})
case yaml.MapSlice:
oldMap := context.(yaml.MapSlice)
newMap := make(map[string]interface{})
for key, value := range oldMap {
newMap[key.(string)] = toJSON(value)
for _, entry := range oldMap {
newMap[entry.Key.(string)] = toJSON(entry.Value)
}
return newMap
default:

19
mkdocs.yml Normal file
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@@ -0,0 +1,19 @@
docs_dir: mkdocs
site_dir: docs
site_name: Yaml
theme: 'material'
pages:
- Install: index.md
- Read: read.md
- Write/Update: write.md
- Create: create.md
- Convert: convert.md
repo_name: 'mikefarah/yaml'
repo_url: 'https://github.com/mikefarah/yaml'
extra:
social:
- type: 'github'
link: 'https://github.com/mikefarah'
- type: 'linkedin'
link: 'https://www.linkedin.com/in/mike-farah-b5a75b2/'

5
mkdocs/convert.md Normal file
View File

@@ -0,0 +1,5 @@
### Yaml2json
To convert output to json, use the --tojson (or -j) flag. This can be used with any command.
### json2yaml
To read in json, use the --fromjson (or -J) flag. This can be used with any command.

42
mkdocs/create.md Normal file
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@@ -0,0 +1,42 @@
Yaml files can be created using the 'new' command. This works in the same way as the write command, but you don't pass in an existing Yaml file.
```
yaml n <path> <new value>
```
### Creating a simple yaml file
```bash
yaml n b.c cat
```
will output:
```yaml
b:
c: cat
```
### Creating using a create script
Create scripts follow the same format as the update scripts.
Given a script create_instructions.yaml of:
```yaml
b.c: 3
b.e[0].name: Howdy Partner
```
then
```bash
yaml n -s create_instructions.yaml
```
will output:
```yaml
b:
c: 3
e:
- name: Howdy Partner
```
You can also pipe the instructions in:
```bash
cat create_instructions.yaml | yaml n -s -
```

16
mkdocs/index.md Normal file
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@@ -0,0 +1,16 @@
# yaml
yaml is a lightweight and portable command-line YAML processor
The aim of the project is to be the [jq](https://github.com/stedolan/jq) or sed of yaml files.
### [download latest binary](https://github.com/mikefarah/yaml/releases/latest)
### get the source
```bash
go get github.com/mikefarah/yaml
```
[.zip](https://github.com/mikefarah/yaml/zipball/master) or [tar.gz](https://github.com/mikefarah/yaml/tarball/master)
[View on GitHub](https://github.com/mikefarah/yaml)

91
mkdocs/read.md Normal file
View File

@@ -0,0 +1,91 @@
```
yaml r <yaml file> <path>
```
### Basic
Given a sample.yaml file of:
```yaml
b:
c: 2
```
then
```bash
yaml r sample.yaml b.c
```
will output the value of '2'.
### From Stdin
Given a sample.yaml file of:
```bash
cat sample.yaml | yaml r - b.c
```
will output the value of '2'.
### Splat
Given a sample.yaml file of:
```yaml
---
bob:
item1:
cats: bananas
item2:
cats: apples
```
then
```bash
yaml r sample.yaml bob.*.cats
```
will output
```yaml
- bananas
- apples
```
### Handling '.' in the yaml key
Given a sample.yaml file of:
```yaml
b.x:
c: 2
```
then
```bash
yaml r sample.yaml \"b.x\".c
```
will output the value of '2'.
### Arrays
You can give an index to access a specific element:
e.g.: given a sample file of
```yaml
b:
e:
- name: fred
value: 3
- name: sam
value: 4
```
then
```
yaml r sample.yaml b.e[1].name
```
will output 'sam'
### Array Splat
e.g.: given a sample file of
```yaml
b:
e:
- name: fred
value: 3
- name: sam
value: 4
```
then
```
yaml r sample.yaml b.e[*].name
```
will output:
```
- fred
- sam
```

88
mkdocs/write.md Normal file
View File

@@ -0,0 +1,88 @@
```
yaml w <yaml file> <path> <new value>
```
### To Stdout
Given a sample.yaml file of:
```yaml
b:
c: 2
```
then
```bash
yaml w sample.yaml b.c cat
```
will output:
```yaml
b:
c: cat
```
### From STDIN
```bash
cat sample.yaml | yaml w - b.c blah
```
### Adding new fields
Any missing fields in the path will be created on the fly.
Given a sample.yaml file of:
```yaml
b:
c: 2
```
then
```bash
yaml w sample.yaml b.d[0] "new thing"
```
will output:
```yaml
b:
c: cat
d:
- new thing
```
### Updating files in-place
Given a sample.yaml file of:
```yaml
b:
c: 2
```
then
```bash
yaml w -i sample.yaml b.c cat
```
will update the sample.yaml file so that the value of 'c' is cat.
### Updating multiple values with a script
Given a sample.yaml file of:
```yaml
b:
c: 2
e:
- name: Billy Bob
```
and a script update_instructions.yaml of:
```yaml
b.c: 3
b.e[0].name: Howdy Partner
```
then
```bash
yaml w -s update_instructions.yaml sample.yaml
```
will output:
```yaml
b:
c: 3
e:
- name: Howdy Partner
```
And, of course, you can pipe the instructions in using '-':
```bash
cat update_instructions.yaml | yaml w -s - sample.yaml
```

2
order.yaml Normal file
View File

@@ -0,0 +1,2 @@
version: 3
application: MyApp

6
order.yml Normal file
View File

@@ -0,0 +1,6 @@
version: '2'
services:
test:
image: ubuntu:14.04
stdin_open: true
tty: true

View File

@@ -1,17 +1,9 @@
#!/bin/bash
set -e
gofmt -w .
golint
go test
go build
# acceptance test
X=$(./yaml w sample.yaml b.c 3 | ./yaml r - b.c)
if [ $X != 3 ]
then
echo "Failed acceptance test: expected 2 but was $X"
exit 1
fi
./ci.sh
go install

View File

@@ -7,8 +7,8 @@ import (
"testing"
)
func parseData(rawData string) map[interface{}]interface{} {
var parsedData map[interface{}]interface{}
func parseData(rawData string) yaml.MapSlice {
var parsedData yaml.MapSlice
err := yaml.Unmarshal([]byte(rawData), &parsedData)
if err != nil {
fmt.Println("Error parsing yaml: %v", err)

94
yaml.go
View File

@@ -4,6 +4,7 @@ import (
"fmt"
"github.com/mikefarah/yaml/Godeps/_workspace/src/github.com/spf13/cobra"
"github.com/mikefarah/yaml/Godeps/_workspace/src/gopkg.in/yaml.v2"
"github.com/op/go-logging"
"io/ioutil"
"os"
"strconv"
@@ -15,17 +16,28 @@ var writeInplace = false
var writeScript = ""
var inputJSON = false
var outputToJSON = false
var verbose = false
var log = logging.MustGetLogger("yaml")
var format = logging.MustStringFormatter(
`%{color}%{time:15:04:05} %{shortfunc} [%{level:.4s}]%{color:reset} %{message}`,
)
var backend = logging.AddModuleLevel(
logging.NewBackendFormatter(logging.NewLogBackend(os.Stderr, "", 0), format))
func main() {
backend.SetLevel(logging.ERROR, "")
logging.SetBackend(backend)
var cmdRead = createReadCmd()
var cmdWrite = createWriteCmd()
var cmdNew = createNewCmd()
var rootCmd = &cobra.Command{Use: "yaml"}
rootCmd.PersistentFlags().BoolVarP(&trimOutput, "trim", "t", true, "trim yaml output")
rootCmd.PersistentFlags().BoolVarP(&outputToJSON, "tojson", "j", false, "output as json")
rootCmd.PersistentFlags().BoolVarP(&inputJSON, "fromjson", "J", false, "input as json")
rootCmd.AddCommand(cmdRead, cmdWrite)
rootCmd.PersistentFlags().BoolVarP(&verbose, "verbose", "v", false, "verbose mode")
rootCmd.AddCommand(cmdRead, cmdWrite, cmdNew)
rootCmd.Execute()
}
@@ -76,12 +88,37 @@ a.b.e:
return cmdWrite
}
func createNewCmd() *cobra.Command {
var cmdNew = &cobra.Command{
Use: "new [path] [value]",
Aliases: []string{"n"},
Short: "yaml n [--script/-s script_file] a.b.c newValueForC",
Example: `
yaml new a.b.c cat
yaml n a.b.c cat
yaml n --script create_script.yaml
`,
Long: `Creates a new yaml w.r.t the given path and value.
Outputs to STDOUT
Create Scripts:
Note that you can give a create script to perform more sophisticated yaml. This follows the same format as the update script.
`,
Run: newProperty,
}
cmdNew.PersistentFlags().StringVarP(&writeScript, "script", "s", "", "yaml script for updating yaml")
return cmdNew
}
func readProperty(cmd *cobra.Command, args []string) {
if verbose {
backend.SetLevel(logging.DEBUG, "")
}
print(read(args))
}
func read(args []string) interface{} {
var parsedData map[interface{}]interface{}
var parsedData yaml.MapSlice
readData(args[0], &parsedData, inputJSON)
@@ -94,7 +131,34 @@ func read(args []string) interface{} {
return readMap(parsedData, paths[0], paths[1:len(paths)])
}
func newProperty(cmd *cobra.Command, args []string) {
if verbose {
backend.SetLevel(logging.DEBUG, "")
}
updatedData := newYaml(args)
print(updatedData)
}
func newYaml(args []string) interface{} {
var writeCommands yaml.MapSlice
if writeScript != "" {
readData(writeScript, &writeCommands, false)
} else if len(args) < 2 {
die("Must provide <path_to_update> <value>")
} else {
writeCommands = make(yaml.MapSlice, 1)
writeCommands[0] = yaml.MapItem{Key: args[0], Value: parseValue(args[1])}
}
parsedData := make(yaml.MapSlice, 0)
return updateParsedData(parsedData, writeCommands)
}
func writeProperty(cmd *cobra.Command, args []string) {
if verbose {
backend.SetLevel(logging.DEBUG, "")
}
updatedData := updateYaml(args)
if writeInplace {
ioutil.WriteFile(args[0], []byte(yamlToString(updatedData)), 0644)
@@ -103,25 +167,31 @@ func writeProperty(cmd *cobra.Command, args []string) {
}
}
func updateParsedData(parsedData yaml.MapSlice, writeCommands yaml.MapSlice) yaml.MapSlice {
for _, entry := range writeCommands {
path := entry.Key
value := entry.Value
var paths = parsePath(path.(string))
parsedData = writeMap(parsedData, paths, value)
}
return parsedData
}
func updateYaml(args []string) interface{} {
var writeCommands map[string]interface{}
var writeCommands yaml.MapSlice
if writeScript != "" {
readData(writeScript, &writeCommands, false)
} else if len(args) < 3 {
die("Must provide <filename> <path_to_update> <value>")
} else {
writeCommands = make(map[string]interface{})
writeCommands[args[1]] = parseValue(args[2])
writeCommands = make(yaml.MapSlice, 1)
writeCommands[0] = yaml.MapItem{Key: args[1], Value: parseValue(args[2])}
}
var parsedData map[interface{}]interface{}
var parsedData yaml.MapSlice
readData(args[0], &parsedData, inputJSON)
for path, value := range writeCommands {
var paths = parsePath(path)
write(parsedData, paths[0], paths[1:len(paths)], value)
}
return parsedData
return updateParsedData(parsedData, writeCommands)
}
func parseValue(argument string) interface{} {

View File

@@ -1,6 +1,7 @@
package main
import (
"fmt"
"testing"
)
@@ -26,11 +27,43 @@ func TestRead(t *testing.T) {
assertResult(t, 2, result)
}
func TestOrder(t *testing.T) {
result := read([]string{"order.yaml"})
formattedResult := yamlToString(result)
assertResult(t,
`version: 3
application: MyApp`,
formattedResult)
}
func TestNewYaml(t *testing.T) {
result := newYaml([]string{"b.c", "3"})
formattedResult := fmt.Sprintf("%v", result)
assertResult(t,
"[{b [{c 3}]}]",
formattedResult)
}
func TestUpdateYaml(t *testing.T) {
updateYaml([]string{"sample.yaml", "b.c", "3"})
result := updateYaml([]string{"sample.yaml", "b.c", "3"})
formattedResult := fmt.Sprintf("%v", result)
assertResult(t,
"[{a Easy! as one two three} {b [{c 3} {d [3 4]} {e [[{name fred} {value 3}] [{name sam} {value 4}]]}]}]",
formattedResult)
}
func TestUpdateYaml_WithScript(t *testing.T) {
writeScript = "instruction_sample.yaml"
updateYaml([]string{"sample.yaml"})
}
func TestNewYaml_WithScript(t *testing.T) {
writeScript = "instruction_sample.yaml"
expectedResult := `b:
c: cat
e:
- name: Mike Farah`
result := newYaml([]string{""})
actualResult := yamlToString(result)
assertResult(t, expectedResult, actualResult)
}