mirror of
https://github.com/mikefarah/yq.git
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119 lines
8.9 KiB
JSON
119 lines
8.9 KiB
JSON
{
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"docs": [
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{
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"location": "/",
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"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",
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"title": "Install"
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},
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{
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"location": "/#yaml",
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"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.",
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"title": "yaml"
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},
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{
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"location": "/#download-latest-binary",
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"text": "",
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"title": "download latest binary"
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},
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{
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"location": "/#get-the-source",
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"text": "go get github.com/mikefarah/yaml .zip or tar.gz View on GitHub",
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"title": "get the source"
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},
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{
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"location": "/read/",
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"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",
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"title": "Read"
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},
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{
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"location": "/read/#basic",
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"text": "Given a sample.yaml file of: b:\n c: 2 then yaml r sample.yaml b.c will output the value of '2'.",
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"title": "Basic"
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},
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{
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"location": "/read/#from-stdin",
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"text": "Given a sample.yaml file of: cat sample.yaml | yaml r - b.c will output the value of '2'.",
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"title": "From Stdin"
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},
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{
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"location": "/read/#splat",
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"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",
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"title": "Splat"
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},
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{
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"location": "/read/#handling-in-the-yaml-key",
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"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'.",
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"title": "Handling '.' in the yaml key"
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},
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{
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"location": "/read/#arrays",
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"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'",
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"title": "Arrays"
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},
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{
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"location": "/read/#array-splat",
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"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",
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"title": "Array Splat"
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},
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{
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"location": "/write/",
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"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",
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"title": "Write/Update"
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},
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{
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"location": "/write/#to-stdout",
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"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",
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"title": "To Stdout"
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},
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{
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"location": "/write/#from-stdin",
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"text": "cat sample.yaml | yaml w - b.c blah",
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"title": "From STDIN"
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},
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{
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"location": "/write/#adding-new-fields",
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"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",
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"title": "Adding new fields"
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},
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{
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"location": "/write/#updating-files-in-place",
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"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.",
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"title": "Updating files in-place"
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},
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{
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"location": "/write/#updating-multiple-values-with-a-script",
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"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",
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"title": "Updating multiple values with a script"
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},
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{
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"location": "/create/",
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"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 -",
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"title": "Create"
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},
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{
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"location": "/create/#creating-a-simple-yaml-file",
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"text": "yaml n b.c cat will output: b:\n c: cat",
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"title": "Creating a simple yaml file"
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},
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{
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"location": "/create/#creating-using-a-create-script",
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"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 -",
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"title": "Creating using a create script"
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},
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{
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"location": "/convert/",
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"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.",
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"title": "Convert"
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},
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{
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"location": "/convert/#yaml2json",
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"text": "To convert output to json, use the --tojson (or -j) flag. This can be used with any command.",
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"title": "Yaml2json"
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},
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{
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"location": "/convert/#json2yaml",
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"text": "To read in json, use the --fromjson (or -J) flag. This can be used with any command.",
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"title": "json2yaml"
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}
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]
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} |