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yq
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Merge branch 'multi'

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Mike Farah 2018-06-20 19:48:44 +10:00
parent a9f25c9d76 25c9c22d8d
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11
README.md
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@ -20,7 +20,7 @@ sudo apt install yq -y
```
or, [Download latest binary](https://github.com/mikefarah/yq/releases/latest) or alternatively:
```
go get gopkg.in/mikefarah/yq.v1
go get gopkg.in/mikefarah/yq.v2
```
## Run with Docker
@ -50,6 +50,7 @@ docker run -it -v ${PWD}:/workdir mikefarah/yq sh
- Pipe data in by using '-'
- Merge multiple yaml files where each additional file sets values for missing or null value keys.
- Merge multiple yaml files with overwrite to support overriding previous values.
- Supports multiple documents in a single yaml file
## [Usage](http://mikefarah.github.io/yq/)
@ -61,12 +62,12 @@ Usage:
yq [command]
Available Commands:
delete yq d [--inplace/-i] sample.yaml a.b.c
delete yq d [--inplace/-i] [--doc/-d document_index] sample.yaml a.b.c
help Help about any command
merge yq m [--inplace/-i] [--overwrite/-x] sample.yaml sample2.yaml
merge yq m [--inplace/-i] [--doc/-d document_index] [--overwrite/-x] sample.yaml sample2.yaml
new yq n [--script/-s script_file] a.b.c newValueForC
read yq r sample.yaml a.b.c
write yq w [--inplace/-i] [--script/-s script_file] sample.yaml a.b.c newValueForC
read yq r [--doc/-d document_index] sample.yaml a.b.c
write yq w [--inplace/-i] [--script/-s script_file] [--doc/-d document_index] sample.yaml a.b.c newValueForC
Flags:
-h, --help help for yq

2
docs/convert/index.html
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@ -372,7 +372,7 @@
<h1>Convert</h1>
<h3 id="yaml-to-json">Yaml to Json<a class="headerlink" href="#yaml-to-json" title="Permanent link">&para;</a></h3>
<p>To convert output to json, use the --tojson (or -j) flag. This can be used with any command.</p>
<p>To convert output to json, use the --tojson (or -j) flag. This can only be used with the read command.</p>
<p>Given a sample.yaml file of:</p>
<pre><code class="yaml">b:
c: 2

2
docs/create/index.html
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@ -385,7 +385,7 @@
<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>
<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. Currently this does not support creating multiple documents in a single yaml file.</p>
<pre><code>yq n &lt;path&gt; &lt;new value&gt;
</code></pre>

75
docs/delete/index.html
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@ -287,6 +287,20 @@
Deleting nodes in-place
</a>
</li>
<li class="md-nav__item">
<a href="#multiple-documents-delete-from-single-document" title="Multiple Documents - delete from single document" class="md-nav__link">
Multiple Documents - delete from single document
</a>
</li>
<li class="md-nav__item">
<a href="#multiple-documents-delete-from-all-documents" title="Multiple Documents - delete from all documents" class="md-nav__link">
Multiple Documents - delete from all documents
</a>
</li>
<li class="md-nav__item">
@ -385,6 +399,20 @@
Deleting nodes in-place
</a>
</li>
<li class="md-nav__item">
<a href="#multiple-documents-delete-from-single-document" title="Multiple Documents - delete from single document" class="md-nav__link">
Multiple Documents - delete from single document
</a>
</li>
<li class="md-nav__item">
<a href="#multiple-documents-delete-from-all-documents" title="Multiple Documents - delete from all documents" class="md-nav__link">
Multiple Documents - delete from all documents
</a>
</li>
<li class="md-nav__item">
@ -413,10 +441,9 @@
<h1>Delete</h1>
<pre><code>yq d &lt;yaml_file|json_file&gt; &lt;path_to_delete&gt;
<pre><code>yq d &lt;yaml_file&gt; &lt;path_to_delete&gt;
</code></pre>
<p>This command can take a json file as input too, and will output yaml unless specified to export as json (-j)</p>
<h3 id="to-stdout">To Stdout<a class="headerlink" href="#to-stdout" title="Permanent link">&para;</a></h3>
<p>Given a sample.yaml file of:</p>
<pre><code class="yaml">b:
@ -469,6 +496,50 @@
</code></pre>
<p>will update the sample.yaml file so that the 'c' node is deleted</p>
<h3 id="multiple-documents-delete-from-single-document">Multiple Documents - delete from single document<a class="headerlink" href="#multiple-documents-delete-from-single-document" title="Permanent link">&para;</a></h3>
<p>Given a sample.yaml file of:</p>
<pre><code class="yaml">something: else
field: leaveMe
---
b:
c: 2
field: deleteMe
</code></pre>
<p>then</p>
<pre><code class="bash">yq w -d1 sample.yaml field
</code></pre>
<p>will output:</p>
<pre><code class="yaml">something: else
field: leaveMe
---
b:
c: 2
</code></pre>
<h3 id="multiple-documents-delete-from-all-documents">Multiple Documents - delete from all documents<a class="headerlink" href="#multiple-documents-delete-from-all-documents" title="Permanent link">&para;</a></h3>
<p>Given a sample.yaml file of:</p>
<pre><code class="yaml">something: else
field: deleteMe
---
b:
c: 2
field: deleteMeToo
</code></pre>
<p>then</p>
<pre><code class="bash">yq w -d'*' sample.yaml field
</code></pre>
<p>will output:</p>
<pre><code class="yaml">something: else
---
b:
c: 2
</code></pre>
<p>Note that '*' is in quotes to avoid being interpreted by your shell.</p>
<h3 id="keys-with-dots">Keys with dots<a class="headerlink" href="#keys-with-dots" title="Permanent link">&para;</a></h3>
<p>When specifying a key that has a dot use key lookup indicator.</p>
<pre><code class="yaml">b:

2
docs/index.html
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@ -380,7 +380,7 @@ sudo apt install yq -y
</code></pre>
<p>or, <a href="https://github.com/mikefarah/yq/releases/latest">Download latest binary</a> or alternatively:</p>
<pre><code>go get gopkg.in/mikefarah/yq.v1
<pre><code>go get gopkg.in/mikefarah/yq.v2
</code></pre>
<p><a href="https://github.com/mikefarah/yq">View on GitHub</a></p>

79
docs/merge/index.html
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@ -325,6 +325,20 @@
</li>
<li class="md-nav__item">
<a href="#multiple-documents-merge-into-single-document" title="Multiple Documents - merge into single document" class="md-nav__link">
Multiple Documents - merge into single document
</a>
</li>
<li class="md-nav__item">
<a href="#multiple-documents-merge-into-all-documents" title="Multiple Documents - merge into all documents" class="md-nav__link">
Multiple Documents - merge into all documents
</a>
</li>
</ul>
@ -380,6 +394,20 @@
</li>
<li class="md-nav__item">
<a href="#multiple-documents-merge-into-single-document" title="Multiple Documents - merge into single document" class="md-nav__link">
Multiple Documents - merge into single document
</a>
</li>
<li class="md-nav__item">
<a href="#multiple-documents-merge-into-all-documents" title="Multiple Documents - merge into all documents" class="md-nav__link">
Multiple Documents - merge into all documents
</a>
</li>
</ul>
@ -401,10 +429,9 @@
<p>Yaml files can be merged using the 'merge' command. Each additional file merged with the first file will
set values for any key not existing already or where the key has no value.</p>
<pre><code>yq m &lt;yaml_file|json_file&gt; &lt;path&gt;...
<pre><code>yq m &lt;yaml_file&gt; &lt;path&gt;...
</code></pre>
<p>This command can take a json file as input too, and will output yaml unless specified to export as json (-j)</p>
<h3 id="to-stdout">To Stdout<a class="headerlink" href="#to-stdout" title="Permanent link">&para;</a></h3>
<p>Given a data1.yaml file of:</p>
<pre><code class="yaml">a: simple
@ -497,6 +524,54 @@ d: false
<p>Notice that 'b' does not result in the merging of the values within an array. The underlying library does not
currently handle merging values within an array.</p>
<h3 id="multiple-documents-merge-into-single-document">Multiple Documents - merge into single document<a class="headerlink" href="#multiple-documents-merge-into-single-document" title="Permanent link">&para;</a></h3>
<p>Currently yq only has multi-document support for the <em>first</em> document being merged into. The remaining yaml files will have their first document selected.</p>
<p>Given a data1.yaml file of:</p>
<pre><code class="yaml">something: else
---
a: simple
b: cat
</code></pre>
<p>and data3.yaml file of:</p>
<pre><code class="yaml">b: dog
</code></pre>
<p>then</p>
<pre><code class="bash">yq m -x -d1 data1.yaml data3.yaml
</code></pre>
<p>will output:</p>
<pre><code class="yaml">something: else
---
a: simple
b: dog
</code></pre>
<h3 id="multiple-documents-merge-into-all-documents">Multiple Documents - merge into all documents<a class="headerlink" href="#multiple-documents-merge-into-all-documents" title="Permanent link">&para;</a></h3>
<p>Currently yq only has multi-document support for the <em>first</em> document being merged into. The remaining yaml files will have their first document selected.</p>
<p>Given a data1.yaml file of:</p>
<pre><code class="yaml">something: else
---
a: simple
b: cat
</code></pre>
<p>and data3.yaml file of:</p>
<pre><code class="yaml">b: dog
</code></pre>
<p>then</p>
<pre><code class="bash">yq m -x -d'*' data1.yaml data3.yaml
</code></pre>
<p>will output:</p>
<pre><code class="yaml">b: dog
something: else
---
a: simple
b: dog
</code></pre>

27
docs/read/index.html
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@ -256,6 +256,13 @@
Splat
</a>
</li>
<li class="md-nav__item">
<a href="#multiple-documents" title="Multiple Documents" class="md-nav__link">
Multiple Documents
</a>
</li>
<li class="md-nav__item">
@ -385,6 +392,13 @@
Splat
</a>
</li>
<li class="md-nav__item">
<a href="#multiple-documents" title="Multiple Documents" class="md-nav__link">
Multiple Documents
</a>
</li>
<li class="md-nav__item">
@ -467,6 +481,19 @@ bob:
- apples
</code></pre>
<h3 id="multiple-documents">Multiple Documents<a class="headerlink" href="#multiple-documents" title="Permanent link">&para;</a></h3>
<p>Given a sample.yaml file of:</p>
<pre><code class="yaml">something: else
---
b:
c: 2
</code></pre>
<p>then</p>
<pre><code class="bash">yq r -d1 sample.yaml b.c
</code></pre>
<p>will output the value of '2'.</p>
<h3 id="arrays">Arrays<a class="headerlink" href="#arrays" title="Permanent link">&para;</a></h3>
<p>You can give an index to access a specific element:
e.g.: given a sample file of</p>

53
docs/search/search_index.json
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@ -2,7 +2,7 @@
"docs": [
{
"location": "/",
"text": "yq\n\u00b6\n\n\nyq is a lightweight and portable command-line YAML processor\n\n\nThe aim of the project is to be the \njq\n or sed of yaml files.\n\n\nInstall\n\u00b6\n\n\nOn MacOS:\n\n\nbrew install yq\n\n\n\n\nOn Ubuntu and other Linux distros supporting \nsnap\n packages:\n\n\nsnap install yq\n\n\n\n\nOn Ubuntu 16.04 or higher from Debian package:\n\n\nsudo add-apt-repository ppa:rmescandon/yq\nsudo apt update\nsudo apt install yq -y\n\n\n\n\nor, \nDownload latest binary\n or alternatively:\n\n\ngo get gopkg.in/mikefarah/yq.v1\n\n\n\n\nView on GitHub",
"text": "yq\n\u00b6\n\n\nyq is a lightweight and portable command-line YAML processor\n\n\nThe aim of the project is to be the \njq\n or sed of yaml files.\n\n\nInstall\n\u00b6\n\n\nOn MacOS:\n\n\nbrew install yq\n\n\n\n\nOn Ubuntu and other Linux distros supporting \nsnap\n packages:\n\n\nsnap install yq\n\n\n\n\nOn Ubuntu 16.04 or higher from Debian package:\n\n\nsudo add-apt-repository ppa:rmescandon/yq\nsudo apt update\nsudo apt install yq -y\n\n\n\n\nor, \nDownload latest binary\n or alternatively:\n\n\ngo get gopkg.in/mikefarah/yq.v2\n\n\n\n\nView on GitHub",
"title": "Install"
},
{
@ -12,12 +12,12 @@
},
{
"location": "/#install",
"text": "On MacOS: brew install yq On Ubuntu and other Linux distros supporting snap packages: snap install yq On Ubuntu 16.04 or higher from Debian package: sudo add-apt-repository ppa:rmescandon/yq\nsudo apt update\nsudo apt install yq -y or, Download latest binary or alternatively: go get gopkg.in/mikefarah/yq.v1 View on GitHub",
"text": "On MacOS: brew install yq On Ubuntu and other Linux distros supporting snap packages: snap install yq On Ubuntu 16.04 or higher from Debian package: sudo add-apt-repository ppa:rmescandon/yq\nsudo apt update\nsudo apt install yq -y or, Download latest binary or alternatively: go get gopkg.in/mikefarah/yq.v2 View on GitHub",
"title": "Install"
},
{
"location": "/read/",
"text": "yq r <yaml_file|json_file> <path>\n\n\n\n\nThis command can take a json file as input too, and will output yaml unless specified to export as json (-j)\n\n\nBasic\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyq r sample.yaml b.c\n\n\n\n\nwill output the value of '2'.\n\n\nFrom Stdin\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\ncat sample.yaml | yq r - b.c\n\n\n\n\nwill output the value of '2'.\n\n\nSplat\n\u00b6\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\nyq r sample.yaml bob.*.cats\n\n\n\n\nwill output\n\n\n- bananas\n- apples\n\n\n\n\nArrays\n\u00b6\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\nyq r sample.yaml 'b.e[1].name'\n\n\n\n\nwill output 'sam'\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.\n\n\nArray Splat\n\u00b6\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\nyq r sample.yaml 'b.e[*].name'\n\n\n\n\nwill output:\n\n\n- fred\n- sam\n\n\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.\n\n\nKeys with dots\n\u00b6\n\n\nWhen specifying a key that has a dot use key lookup indicator.\n\n\nb:\n foo.bar: 7\n\n\n\n\nyaml r sample.yaml 'b[foo.bar]'\n\n\n\n\nyaml w sample.yaml 'b[foo.bar]' 9\n\n\n\n\nAny valid yaml key can be specified as part of a key lookup.\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.",
"text": "yq r <yaml_file|json_file> <path>\n\n\n\n\nThis command can take a json file as input too, and will output yaml unless specified to export as json (-j)\n\n\nBasic\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyq r sample.yaml b.c\n\n\n\n\nwill output the value of '2'.\n\n\nFrom Stdin\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\ncat sample.yaml | yq r - b.c\n\n\n\n\nwill output the value of '2'.\n\n\nSplat\n\u00b6\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\nyq r sample.yaml bob.*.cats\n\n\n\n\nwill output\n\n\n- bananas\n- apples\n\n\n\n\nMultiple Documents\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nsomething: else\n---\nb:\n c: 2\n\n\n\n\nthen\n\n\nyq r -d1 sample.yaml b.c\n\n\n\n\nwill output the value of '2'.\n\n\nArrays\n\u00b6\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\nyq r sample.yaml 'b.e[1].name'\n\n\n\n\nwill output 'sam'\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.\n\n\nArray Splat\n\u00b6\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\nyq r sample.yaml 'b.e[*].name'\n\n\n\n\nwill output:\n\n\n- fred\n- sam\n\n\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.\n\n\nKeys with dots\n\u00b6\n\n\nWhen specifying a key that has a dot use key lookup indicator.\n\n\nb:\n foo.bar: 7\n\n\n\n\nyaml r sample.yaml 'b[foo.bar]'\n\n\n\n\nyaml w sample.yaml 'b[foo.bar]' 9\n\n\n\n\nAny valid yaml key can be specified as part of a key lookup.\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.",
"title": "Read"
},
{
@ -35,6 +35,11 @@
"text": "Given a sample.yaml file of: ---\nbob:\n item1:\n cats: bananas\n item2:\n cats: apples then yq r sample.yaml bob.*.cats will output - bananas\n- apples",
"title": "Splat"
},
{
"location": "/read/#multiple-documents",
"text": "Given a sample.yaml file of: something: else\n---\nb:\n c: 2 then yq r -d1 sample.yaml b.c will output the value of '2'.",
"title": "Multiple Documents"
},
{
"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 yq r sample.yaml 'b.e[1].name' will output 'sam' Note that the path is in quotes to avoid the square brackets being interpreted by your shell.",
@ -52,7 +57,7 @@
},
{
"location": "/write/",
"text": "yq w <yaml_file|json_file> <path> <new value>\n\n\n\n\nThis command can take a json file as input too, and will output yaml unless specified to export as json (-j)\n\n\nTo Stdout\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyq 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\u00b6\n\n\ncat sample.yaml | yq w - b.c blah\n\n\n\n\nAdding new fields\n\u00b6\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\nyq w sample.yaml b.d[0] \"new thing\"\n\n\n\n\nwill output:\n\n\nb:\n c: cat\n d:\n - new thing\n\n\n\n\nAppending value to an array field\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n d:\n - new thing\n - foo thing\n\n\n\n\nthen\n\n\nyq w sample.yaml \"b.d[+]\" \"bar thing\"\n\n\n\n\nwill output:\n\n\nb:\n c: cat\n d:\n - new thing\n - foo thing\n - bar thing\n\n\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.\n\n\nUpdating files in-place\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyq 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\u00b6\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\nyq 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 | yq w -s - sample.yaml\n\n\n\n\nValues starting with a hyphen (or dash)\n\u00b6\n\n\nThe flag terminator needs to be used to stop the app from attempting to parse the subsequent arguments as flags:\n\n\nyq w -- my.path -3\n\n\n\n\nwill output\n\n\nmy:\n path: -3\n\n\n\n\nKeys with dots\n\u00b6\n\n\nWhen specifying a key that has a dot use key lookup indicator.\n\n\nb:\n foo.bar: 7\n\n\n\n\nyaml r sample.yaml 'b[foo.bar]'\n\n\n\n\nyaml w sample.yaml 'b[foo.bar]' 9\n\n\n\n\nAny valid yaml key can be specified as part of a key lookup.\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.",
"text": "yq w <yaml_file> <path> <new value>\n\n\n\n\nTo Stdout\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyq 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\u00b6\n\n\ncat sample.yaml | yq w - b.c blah\n\n\n\n\nAdding new fields\n\u00b6\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\nyq w sample.yaml b.d[0] \"new thing\"\n\n\n\n\nwill output:\n\n\nb:\n c: cat\n d:\n - new thing\n\n\n\n\nAppending value to an array field\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n d:\n - new thing\n - foo thing\n\n\n\n\nthen\n\n\nyq w sample.yaml \"b.d[+]\" \"bar thing\"\n\n\n\n\nwill output:\n\n\nb:\n c: cat\n d:\n - new thing\n - foo thing\n - bar thing\n\n\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.\n\n\nMultiple Documents - update a single document\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nsomething: else\n---\nb:\n c: 2\n\n\n\n\nthen\n\n\nyq w -d1 sample.yaml b.c 5\n\n\n\n\nwill output:\n\n\nsomething: else\n---\nb:\n c: 5\n\n\n\n\nMultiple Documents - update all documents\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nsomething: else\n---\nb:\n c: 2\n\n\n\n\nthen\n\n\nyq w -d'*' sample.yaml b.c 5\n\n\n\n\nwill output:\n\n\nsomething: else\nb:\n c: 5\n---\nb:\n c: 5\n\n\n\n\nNote that '*' is in quotes to avoid being interpreted by your shell.\n\n\nUpdating files in-place\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyq 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\u00b6\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\nyq 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 | yq w -s - sample.yaml\n\n\n\n\nValues starting with a hyphen (or dash)\n\u00b6\n\n\nThe flag terminator needs to be used to stop the app from attempting to parse the subsequent arguments as flags:\n\n\nyq w -- my.path -3\n\n\n\n\nwill output\n\n\nmy:\n path: -3\n\n\n\n\nKeys with dots\n\u00b6\n\n\nWhen specifying a key that has a dot use key lookup indicator.\n\n\nb:\n foo.bar: 7\n\n\n\n\nyaml r sample.yaml 'b[foo.bar]'\n\n\n\n\nyaml w sample.yaml 'b[foo.bar]' 9\n\n\n\n\nAny valid yaml key can be specified as part of a key lookup.\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.",
"title": "Write/Update"
},
{
@ -75,6 +80,16 @@
"text": "Given a sample.yaml file of: b:\n c: 2\n d:\n - new thing\n - foo thing then yq w sample.yaml \"b.d[+]\" \"bar thing\" will output: b:\n c: cat\n d:\n - new thing\n - foo thing\n - bar thing Note that the path is in quotes to avoid the square brackets being interpreted by your shell.",
"title": "Appending value to an array field"
},
{
"location": "/write/#multiple-documents-update-a-single-document",
"text": "Given a sample.yaml file of: something: else\n---\nb:\n c: 2 then yq w -d1 sample.yaml b.c 5 will output: something: else\n---\nb:\n c: 5",
"title": "Multiple Documents - update a single document"
},
{
"location": "/write/#multiple-documents-update-all-documents",
"text": "Given a sample.yaml file of: something: else\n---\nb:\n c: 2 then yq w -d'*' sample.yaml b.c 5 will output: something: else\nb:\n c: 5\n---\nb:\n c: 5 Note that '*' is in quotes to avoid being interpreted by your shell.",
"title": "Multiple Documents - update all documents"
},
{
"location": "/write/#updating-files-in-place",
"text": "Given a sample.yaml file of: b:\n c: 2 then yq w -i sample.yaml b.c cat will update the sample.yaml file so that the value of 'c' is cat.",
@ -97,7 +112,7 @@
},
{
"location": "/delete/",
"text": "yq d <yaml_file|json_file> <path_to_delete>\n\n\n\n\nThis command can take a json file as input too, and will output yaml unless specified to export as json (-j)\n\n\nTo Stdout\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n apples: green\n\n\n\n\nthen\n\n\nyq d sample.yaml b.c\n\n\n\n\nwill output:\n\n\nb:\n apples: green\n\n\n\n\nFrom STDIN\n\u00b6\n\n\ncat sample.yaml | yq d - b.c\n\n\n\n\nDeleting array elements\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: \n - 1\n - 2\n - 3\n\n\n\n\nthen\n\n\nyq d sample.yaml 'b.c[1]'\n\n\n\n\nwill output:\n\n\nb:\n c:\n - 1\n - 3\n\n\n\n\nDeleting nodes in-place\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n apples: green\n\n\n\n\nthen\n\n\nyq d -i sample.yaml b.c\n\n\n\n\nwill update the sample.yaml file so that the 'c' node is deleted\n\n\nKeys with dots\n\u00b6\n\n\nWhen specifying a key that has a dot use key lookup indicator.\n\n\nb:\n foo.bar: 7\n\n\n\n\nyaml r sample.yaml 'b[foo.bar]'\n\n\n\n\nyaml w sample.yaml 'b[foo.bar]' 9\n\n\n\n\nAny valid yaml key can be specified as part of a key lookup.\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.",
"text": "yq d <yaml_file> <path_to_delete>\n\n\n\n\nTo Stdout\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n apples: green\n\n\n\n\nthen\n\n\nyq d sample.yaml b.c\n\n\n\n\nwill output:\n\n\nb:\n apples: green\n\n\n\n\nFrom STDIN\n\u00b6\n\n\ncat sample.yaml | yq d - b.c\n\n\n\n\nDeleting array elements\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: \n - 1\n - 2\n - 3\n\n\n\n\nthen\n\n\nyq d sample.yaml 'b.c[1]'\n\n\n\n\nwill output:\n\n\nb:\n c:\n - 1\n - 3\n\n\n\n\nDeleting nodes in-place\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n apples: green\n\n\n\n\nthen\n\n\nyq d -i sample.yaml b.c\n\n\n\n\nwill update the sample.yaml file so that the 'c' node is deleted\n\n\nMultiple Documents - delete from single document\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nsomething: else\nfield: leaveMe\n---\nb:\n c: 2\nfield: deleteMe\n\n\n\n\nthen\n\n\nyq w -d1 sample.yaml field\n\n\n\n\nwill output:\n\n\nsomething: else\nfield: leaveMe\n---\nb:\n c: 2\n\n\n\n\nMultiple Documents - delete from all documents\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nsomething: else\nfield: deleteMe\n---\nb:\n c: 2\nfield: deleteMeToo\n\n\n\n\nthen\n\n\nyq w -d'*' sample.yaml field\n\n\n\n\nwill output:\n\n\nsomething: else\n---\nb:\n c: 2\n\n\n\n\nNote that '*' is in quotes to avoid being interpreted by your shell.\n\n\nKeys with dots\n\u00b6\n\n\nWhen specifying a key that has a dot use key lookup indicator.\n\n\nb:\n foo.bar: 7\n\n\n\n\nyaml r sample.yaml 'b[foo.bar]'\n\n\n\n\nyaml w sample.yaml 'b[foo.bar]' 9\n\n\n\n\nAny valid yaml key can be specified as part of a key lookup.\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.",
"title": "Delete"
},
{
@ -120,6 +135,16 @@
"text": "Given a sample.yaml file of: b:\n c: 2\n apples: green then yq d -i sample.yaml b.c will update the sample.yaml file so that the 'c' node is deleted",
"title": "Deleting nodes in-place"
},
{
"location": "/delete/#multiple-documents-delete-from-single-document",
"text": "Given a sample.yaml file of: something: else\nfield: leaveMe\n---\nb:\n c: 2\nfield: deleteMe then yq w -d1 sample.yaml field will output: something: else\nfield: leaveMe\n---\nb:\n c: 2",
"title": "Multiple Documents - delete from single document"
},
{
"location": "/delete/#multiple-documents-delete-from-all-documents",
"text": "Given a sample.yaml file of: something: else\nfield: deleteMe\n---\nb:\n c: 2\nfield: deleteMeToo then yq w -d'*' sample.yaml field will output: something: else\n---\nb:\n c: 2 Note that '*' is in quotes to avoid being interpreted by your shell.",
"title": "Multiple Documents - delete from all documents"
},
{
"location": "/delete/#keys-with-dots",
"text": "When specifying a key that has a dot use key lookup indicator. b:\n foo.bar: 7 yaml r sample.yaml 'b[foo.bar]' yaml w sample.yaml 'b[foo.bar]' 9 Any valid yaml key can be specified as part of a key lookup. Note that the path is in quotes to avoid the square brackets being interpreted by your shell.",
@ -127,7 +152,7 @@
},
{
"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\nyq n <path> <new value>\n\n\n\n\nCreating a simple yaml file\n\u00b6\n\n\nyq 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\u00b6\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\nyq 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 | yq n -s -\n\n\n\n\nKeys with dots\n\u00b6\n\n\nWhen specifying a key that has a dot use key lookup indicator.\n\n\nb:\n foo.bar: 7\n\n\n\n\nyaml r sample.yaml 'b[foo.bar]'\n\n\n\n\nyaml w sample.yaml 'b[foo.bar]' 9\n\n\n\n\nAny valid yaml key can be specified as part of a key lookup.\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.",
"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. Currently this does not support creating multiple documents in a single yaml file.\n\n\nyq n <path> <new value>\n\n\n\n\nCreating a simple yaml file\n\u00b6\n\n\nyq 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\u00b6\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\nyq 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 | yq n -s -\n\n\n\n\nKeys with dots\n\u00b6\n\n\nWhen specifying a key that has a dot use key lookup indicator.\n\n\nb:\n foo.bar: 7\n\n\n\n\nyaml r sample.yaml 'b[foo.bar]'\n\n\n\n\nyaml w sample.yaml 'b[foo.bar]' 9\n\n\n\n\nAny valid yaml key can be specified as part of a key lookup.\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.",
"title": "Create"
},
{
@ -147,12 +172,12 @@
},
{
"location": "/convert/",
"text": "Yaml to Json\n\u00b6\n\n\nTo convert output to json, use the --tojson (or -j) flag. This can be used with any command.\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyq r -j sample.yaml b.c\n\n\n\n\nwill output\n\n\n{\"b\":{\"c\":2}}\n\n\n\n\nJson to Yaml\n\u00b6\n\n\nTo read in json, just pass in a json file instead of yaml, it will just work :)\n\n\ne.g given a json file\n\n\n{\"a\":\"Easy! as one two three\",\"b\":{\"c\":2,\"d\":[3,4]}}\n\n\n\n\nthen\n\n\nyq r sample.json\n\n\n\n\nwill output\n\n\na: Easy! as one two three\nb:\n c: 2\n d:\n - 3\n - 4",
"text": "Yaml to Json\n\u00b6\n\n\nTo convert output to json, use the --tojson (or -j) flag. This can only be used with the read command.\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyq r -j sample.yaml b.c\n\n\n\n\nwill output\n\n\n{\"b\":{\"c\":2}}\n\n\n\n\nJson to Yaml\n\u00b6\n\n\nTo read in json, just pass in a json file instead of yaml, it will just work :)\n\n\ne.g given a json file\n\n\n{\"a\":\"Easy! as one two three\",\"b\":{\"c\":2,\"d\":[3,4]}}\n\n\n\n\nthen\n\n\nyq r sample.json\n\n\n\n\nwill output\n\n\na: Easy! as one two three\nb:\n c: 2\n d:\n - 3\n - 4",
"title": "Convert"
},
{
"location": "/convert/#yaml-to-json",
"text": "To convert output to json, use the --tojson (or -j) flag. This can be used with any command. Given a sample.yaml file of: b:\n c: 2 then yq r -j sample.yaml b.c will output {\"b\":{\"c\":2}}",
"text": "To convert output to json, use the --tojson (or -j) flag. This can only be used with the read command. Given a sample.yaml file of: b:\n c: 2 then yq r -j sample.yaml b.c will output {\"b\":{\"c\":2}}",
"title": "Yaml to Json"
},
{
@ -162,7 +187,7 @@
},
{
"location": "/merge/",
"text": "Yaml files can be merged using the 'merge' command. Each additional file merged with the first file will\nset values for any key not existing already or where the key has no value.\n\n\nyq m <yaml_file|json_file> <path>...\n\n\n\n\nThis command can take a json file as input too, and will output yaml unless specified to export as json (-j)\n\n\nTo Stdout\n\u00b6\n\n\nGiven a data1.yaml file of:\n\n\na: simple\nb: [1, 2]\n\n\n\n\nand data2.yaml file of:\n\n\na: other\nc:\n test: 1\n\n\n\n\nthen\n\n\nyq m data1.yaml data2.yaml\n\n\n\n\nwill output:\n\n\na: simple\nb: [1, 2]\nc:\n test: 1\n\n\n\n\nUpdating files in-place\n\u00b6\n\n\nGiven a data1.yaml file of:\n\n\na: simple\nb: [1, 2]\n\n\n\n\nand data2.yaml file of:\n\n\na: other\nc:\n test: 1\n\n\n\n\nthen\n\n\nyq m -i data1.yaml data2.yaml\n\n\n\n\nwill update the data1.yaml file so that the value of 'c' is 'test: 1'.\n\n\nOverwrite values\n\u00b6\n\n\nGiven a data1.yaml file of:\n\n\na: simple\nb: [1, 2]\n\n\n\n\nand data2.yaml file of:\n\n\na: other\nc:\n test: 1\n\n\n\n\nthen\n\n\nyq m -x data1.yaml data2.yaml\n\n\n\n\nwill output:\n\n\na: other\nb: [1, 2]\nc:\n test: 1\n\n\n\n\nOverwrite values with arrays\n\u00b6\n\n\nGiven a data1.yaml file of:\n\n\na: simple\nb: [1, 2]\n\n\n\n\nand data3.yaml file of:\n\n\nb: [2, 3, 4]\nc:\n test: 2\n other: true\nd: false\n\n\n\n\nthen\n\n\nyq m -x data1.yaml data3.yaml\n\n\n\n\nwill output:\n\n\na: simple\nb: [2, 3, 4]\nc:\n test: 2\n other: true\nd: false\n\n\n\n\nNotice that 'b' does not result in the merging of the values within an array. The underlying library does not\ncurrently handle merging values within an array.",
"text": "Yaml files can be merged using the 'merge' command. Each additional file merged with the first file will\nset values for any key not existing already or where the key has no value.\n\n\nyq m <yaml_file> <path>...\n\n\n\n\nTo Stdout\n\u00b6\n\n\nGiven a data1.yaml file of:\n\n\na: simple\nb: [1, 2]\n\n\n\n\nand data2.yaml file of:\n\n\na: other\nc:\n test: 1\n\n\n\n\nthen\n\n\nyq m data1.yaml data2.yaml\n\n\n\n\nwill output:\n\n\na: simple\nb: [1, 2]\nc:\n test: 1\n\n\n\n\nUpdating files in-place\n\u00b6\n\n\nGiven a data1.yaml file of:\n\n\na: simple\nb: [1, 2]\n\n\n\n\nand data2.yaml file of:\n\n\na: other\nc:\n test: 1\n\n\n\n\nthen\n\n\nyq m -i data1.yaml data2.yaml\n\n\n\n\nwill update the data1.yaml file so that the value of 'c' is 'test: 1'.\n\n\nOverwrite values\n\u00b6\n\n\nGiven a data1.yaml file of:\n\n\na: simple\nb: [1, 2]\n\n\n\n\nand data2.yaml file of:\n\n\na: other\nc:\n test: 1\n\n\n\n\nthen\n\n\nyq m -x data1.yaml data2.yaml\n\n\n\n\nwill output:\n\n\na: other\nb: [1, 2]\nc:\n test: 1\n\n\n\n\nOverwrite values with arrays\n\u00b6\n\n\nGiven a data1.yaml file of:\n\n\na: simple\nb: [1, 2]\n\n\n\n\nand data3.yaml file of:\n\n\nb: [2, 3, 4]\nc:\n test: 2\n other: true\nd: false\n\n\n\n\nthen\n\n\nyq m -x data1.yaml data3.yaml\n\n\n\n\nwill output:\n\n\na: simple\nb: [2, 3, 4]\nc:\n test: 2\n other: true\nd: false\n\n\n\n\nNotice that 'b' does not result in the merging of the values within an array. The underlying library does not\ncurrently handle merging values within an array.\n\n\nMultiple Documents - merge into single document\n\u00b6\n\n\nCurrently yq only has multi-document support for the \nfirst\n document being merged into. The remaining yaml files will have their first document selected.\n\n\nGiven a data1.yaml file of:\n\n\nsomething: else\n---\na: simple\nb: cat\n\n\n\n\nand data3.yaml file of:\n\n\nb: dog\n\n\n\n\nthen\n\n\nyq m -x -d1 data1.yaml data3.yaml\n\n\n\n\nwill output:\n\n\nsomething: else\n---\na: simple\nb: dog\n\n\n\n\nMultiple Documents - merge into all documents\n\u00b6\n\n\nCurrently yq only has multi-document support for the \nfirst\n document being merged into. The remaining yaml files will have their first document selected.\n\n\nGiven a data1.yaml file of:\n\n\nsomething: else\n---\na: simple\nb: cat\n\n\n\n\nand data3.yaml file of:\n\n\nb: dog\n\n\n\n\nthen\n\n\nyq m -x -d'*' data1.yaml data3.yaml\n\n\n\n\nwill output:\n\n\nb: dog\nsomething: else\n---\na: simple\nb: dog",
"title": "Merge"
},
{
@ -184,6 +209,16 @@
"location": "/merge/#overwrite-values-with-arrays",
"text": "Given a data1.yaml file of: a: simple\nb: [1, 2] and data3.yaml file of: b: [2, 3, 4]\nc:\n test: 2\n other: true\nd: false then yq m -x data1.yaml data3.yaml will output: a: simple\nb: [2, 3, 4]\nc:\n test: 2\n other: true\nd: false Notice that 'b' does not result in the merging of the values within an array. The underlying library does not\ncurrently handle merging values within an array.",
"title": "Overwrite values with arrays"
},
{
"location": "/merge/#multiple-documents-merge-into-single-document",
"text": "Currently yq only has multi-document support for the first document being merged into. The remaining yaml files will have their first document selected. Given a data1.yaml file of: something: else\n---\na: simple\nb: cat and data3.yaml file of: b: dog then yq m -x -d1 data1.yaml data3.yaml will output: something: else\n---\na: simple\nb: dog",
"title": "Multiple Documents - merge into single document"
},
{
"location": "/merge/#multiple-documents-merge-into-all-documents",
"text": "Currently yq only has multi-document support for the first document being merged into. The remaining yaml files will have their first document selected. Given a data1.yaml file of: something: else\n---\na: simple\nb: cat and data3.yaml file of: b: dog then yq m -x -d'*' data1.yaml data3.yaml will output: b: dog\nsomething: else\n---\na: simple\nb: dog",
"title": "Multiple Documents - merge into all documents"
}
]
}

14
docs/sitemap.xml
View File

@ -4,7 +4,7 @@
<url>
<loc>/</loc>
<lastmod>2018-06-18</lastmod>
<lastmod>2018-06-20</lastmod>
<changefreq>daily</changefreq>
</url>
@ -12,7 +12,7 @@
<url>
<loc>/read/</loc>
<lastmod>2018-06-18</lastmod>
<lastmod>2018-06-20</lastmod>
<changefreq>daily</changefreq>
</url>
@ -20,7 +20,7 @@
<url>
<loc>/write/</loc>
<lastmod>2018-06-18</lastmod>
<lastmod>2018-06-20</lastmod>
<changefreq>daily</changefreq>
</url>
@ -28,7 +28,7 @@
<url>
<loc>/delete/</loc>
<lastmod>2018-06-18</lastmod>
<lastmod>2018-06-20</lastmod>
<changefreq>daily</changefreq>
</url>
@ -36,7 +36,7 @@
<url>
<loc>/create/</loc>
<lastmod>2018-06-18</lastmod>
<lastmod>2018-06-20</lastmod>
<changefreq>daily</changefreq>
</url>
@ -44,7 +44,7 @@
<url>
<loc>/convert/</loc>
<lastmod>2018-06-18</lastmod>
<lastmod>2018-06-20</lastmod>
<changefreq>daily</changefreq>
</url>
@ -52,7 +52,7 @@
<url>
<loc>/merge/</loc>
<lastmod>2018-06-18</lastmod>
<lastmod>2018-06-20</lastmod>
<changefreq>daily</changefreq>
</url>

72
docs/write/index.html
View File

@ -275,6 +275,20 @@
Appending value to an array field
</a>
</li>
<li class="md-nav__item">
<a href="#multiple-documents-update-a-single-document" title="Multiple Documents - update a single document" class="md-nav__link">
Multiple Documents - update a single document
</a>
</li>
<li class="md-nav__item">
<a href="#multiple-documents-update-all-documents" title="Multiple Documents - update all documents" class="md-nav__link">
Multiple Documents - update all documents
</a>
</li>
<li class="md-nav__item">
@ -406,6 +420,20 @@
Appending value to an array field
</a>
</li>
<li class="md-nav__item">
<a href="#multiple-documents-update-a-single-document" title="Multiple Documents - update a single document" class="md-nav__link">
Multiple Documents - update a single document
</a>
</li>
<li class="md-nav__item">
<a href="#multiple-documents-update-all-documents" title="Multiple Documents - update all documents" class="md-nav__link">
Multiple Documents - update all documents
</a>
</li>
<li class="md-nav__item">
@ -455,10 +483,9 @@
<h1>Write/Update</h1>
<pre><code>yq w &lt;yaml_file|json_file&gt; &lt;path&gt; &lt;new value&gt;
<pre><code>yq w &lt;yaml_file&gt; &lt;path&gt; &lt;new value&gt;
</code></pre>
<p>This command can take a json file as input too, and will output yaml unless specified to export as json (-j)</p>
<h3 id="to-stdout">To Stdout<a class="headerlink" href="#to-stdout" title="Permanent link">&para;</a></h3>
<p>Given a sample.yaml file of:</p>
<pre><code class="yaml">b:
@ -519,6 +546,47 @@
</code></pre>
<p>Note that the path is in quotes to avoid the square brackets being interpreted by your shell.</p>
<h3 id="multiple-documents-update-a-single-document">Multiple Documents - update a single document<a class="headerlink" href="#multiple-documents-update-a-single-document" title="Permanent link">&para;</a></h3>
<p>Given a sample.yaml file of:</p>
<pre><code class="yaml">something: else
---
b:
c: 2
</code></pre>
<p>then</p>
<pre><code class="bash">yq w -d1 sample.yaml b.c 5
</code></pre>
<p>will output:</p>
<pre><code class="yaml">something: else
---
b:
c: 5
</code></pre>
<h3 id="multiple-documents-update-all-documents">Multiple Documents - update all documents<a class="headerlink" href="#multiple-documents-update-all-documents" title="Permanent link">&para;</a></h3>
<p>Given a sample.yaml file of:</p>
<pre><code class="yaml">something: else
---
b:
c: 2
</code></pre>
<p>then</p>
<pre><code class="bash">yq w -d'*' sample.yaml b.c 5
</code></pre>
<p>will output:</p>
<pre><code class="yaml">something: else
b:
c: 5
---
b:
c: 5
</code></pre>
<p>Note that '*' is in quotes to avoid being interpreted by your shell.</p>
<h3 id="updating-files-in-place">Updating files in-place<a class="headerlink" href="#updating-files-in-place" title="Permanent link">&para;</a></h3>
<p>Given a sample.yaml file of:</p>
<pre><code class="yaml">b:

6
examples/data3.yaml
View File

@ -1,5 +1 @@
b: [2, 3, 4]
c:
test: 2
other: true
d: false
b: dog

2
mkdocs/convert.md
View File

@ -1,5 +1,5 @@
### Yaml to Json
To convert output to json, use the --tojson (or -j) flag. This can be used with any command.
To convert output to json, use the --tojson (or -j) flag. This can only be used with the read command.
Given a sample.yaml file of:
```yaml

2
mkdocs/create.md
View File

@ -1,4 +1,4 @@
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 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. Currently this does not support creating multiple documents in a single yaml file.
```
yq n <path> <new value>

51
mkdocs/delete.md
View File

@ -1,7 +1,6 @@
```
yq d <yaml_file|json_file> <path_to_delete>
yq d <yaml_file> <path_to_delete>
```
{!snippets/works_with_json.md!}
### To Stdout
Given a sample.yaml file of:
@ -60,4 +59,52 @@ yq d -i sample.yaml b.c
will update the sample.yaml file so that the 'c' node is deleted
### Multiple Documents - delete from single document
Given a sample.yaml file of:
```yaml
something: else
field: leaveMe
---
b:
c: 2
field: deleteMe
```
then
```bash
yq w -d1 sample.yaml field
```
will output:
```yaml
something: else
field: leaveMe
---
b:
c: 2
```
### Multiple Documents - delete from all documents
Given a sample.yaml file of:
```yaml
something: else
field: deleteMe
---
b:
c: 2
field: deleteMeToo
```
then
```bash
yq w -d'*' sample.yaml field
```
will output:
```yaml
something: else
---
b:
c: 2
```
Note that '*' is in quotes to avoid being interpreted by your shell.
{!snippets/keys_with_dots.md!}

2
mkdocs/index.md
View File

@ -20,7 +20,7 @@ sudo apt install yq -y
```
or, [Download latest binary](https://github.com/mikefarah/yq/releases/latest) or alternatively:
```
go get gopkg.in/mikefarah/yq.v1
go get gopkg.in/mikefarah/yq.v2
```
[View on GitHub](https://github.com/mikefarah/yq)

57
mkdocs/merge.md
View File

@ -2,9 +2,9 @@ Yaml files can be merged using the 'merge' command. Each additional file merged
set values for any key not existing already or where the key has no value.
```
yq m <yaml_file|json_file> <path>...
yq m <yaml_file> <path>...
```
{!snippets/works_with_json.md!}
### To Stdout
Given a data1.yaml file of:
@ -102,3 +102,56 @@ d: false
Notice that 'b' does not result in the merging of the values within an array. The underlying library does not
currently handle merging values within an array.
### Multiple Documents - merge into single document
Currently yq only has multi-document support for the _first_ document being merged into. The remaining yaml files will have their first document selected.
Given a data1.yaml file of:
```yaml
something: else
---
a: simple
b: cat
```
and data3.yaml file of:
```yaml
b: dog
```
then
```bash
yq m -x -d1 data1.yaml data3.yaml
```
will output:
```yaml
something: else
---
a: simple
b: dog
```
### Multiple Documents - merge into all documents
Currently yq only has multi-document support for the _first_ document being merged into. The remaining yaml files will have their first document selected.
Given a data1.yaml file of:
```yaml
something: else
---
a: simple
b: cat
```
and data3.yaml file of:
```yaml
b: dog
```
then
```bash
yq m -x -d'*' data1.yaml data3.yaml
```
will output:
```yaml
b: dog
something: else
---
a: simple
b: dog
```

14
mkdocs/read.md
View File

@ -43,6 +43,20 @@ will output
- apples
```
### Multiple Documents
Given a sample.yaml file of:
```yaml
something: else
---
b:
c: 2
```
then
```bash
yq r -d1 sample.yaml b.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

47
mkdocs/write.md
View File

@ -1,7 +1,6 @@
```
yq w <yaml_file|json_file> <path> <new value>
yq w <yaml_file> <path> <new value>
```
{!snippets/works_with_json.md!}
### To Stdout
Given a sample.yaml file of:
@ -69,6 +68,50 @@ b:
Note that the path is in quotes to avoid the square brackets being interpreted by your shell.
### Multiple Documents - update a single document
Given a sample.yaml file of:
```yaml
something: else
---
b:
c: 2
```
then
```bash
yq w -d1 sample.yaml b.c 5
```
will output:
```yaml
something: else
---
b:
c: 5
```
### Multiple Documents - update all documents
Given a sample.yaml file of:
```yaml
something: else
---
b:
c: 2
```
then
```bash
yq w -d'*' sample.yaml b.c 5
```
will output:
```yaml
something: else
b:
c: 5
---
b:
c: 5
```
Note that '*' is in quotes to avoid being interpreted by your shell.
### Updating files in-place
Given a sample.yaml file of:
```yaml