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cleaned up sample ps1 script and added more comments. (#2429)

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It's not complete but a good start for anyone interested in learning.
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Darren Schroeder 2020-08-26 14:46:01 -05:00 committed by GitHub
parent 6e3a827e32
commit 781e423a97
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1 changed files with 16 additions and 54 deletions
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70
docs/sample_plugins/powershell/nu_plugin_mylen_filter.ps1
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@ -9,7 +9,16 @@
# C# https://github.com/myty/nu-plugin-lib
# Ruby https://github.com/andrasio/nu_plugin
# WIP 8/19/20
# WIP 8/26/20
# This is not yet ready for prime time but it could give someone
# a headstart with writing powershell core plugins for mac/linux/win
# Most of the comments are TODO's or functions from python plugins
# meant to be used as a reference.
#
# While this length demonstration works, it is filled with debug
# messages that can be seen during normal operation.
#
# This is by no means complete. Good luck!
# def print_good_response(response):
# json_response = {"jsonrpc": "2.0", "method": "response", "params": {"Ok": response}}
@ -53,21 +62,6 @@ function begin_filter {
function run_filter {
param($input_data)
# param(
# [Parameter(
# # Position = 0,
# Mandatory = $true,
# ValueFromPipeline = $true,
# ValueFromPipelineByPropertyName = $true)
# ]
# [Alias('piped')]
# [String]$piped_input
# )
# param([string]$params)
# {"method":"filter", "params": {"item": {"Primitive": {"String": "oogabooga"}}, \
# "tag":{"anchor":null,"span":{"end":10,"start":12}}}}
# Write-Error $piped_input
Write-TraceMessage "PIPED" $input_data
$prim = "Primitive"
@ -103,12 +97,7 @@ function run_filter {
Default { $len = 0 }
}
#Fake it til you make it
# $response = '{ "jsonrpc": "2.0", "method": "response", "params": { "Ok": [ { "Ok": { "Value": { "value": { "Primitive": { "Int": 9 } }, "tag": { "anchor": null, "span": { "end": 2, "start": 0 } } } } } ] } }'
# Write-Host $response
# $response = '{ "jsonrpc": "2.0", "method": "response", "params": { "Ok": [ { "Ok": { "Value": { "value": { "Primitive": { "Int": 3 } }, "tag": { "anchor": null, "span": { "start": 0, "end": 2 } } } } } ] } }'
# Write-Host $response
# Create a json hash making sure all the child nodes are sorted
$json_obj = [ordered]@{
jsonrpc = "2.0"
method = "response"
@ -135,8 +124,7 @@ function run_filter {
)
}
}
$response = $json_obj | ConvertTo-Json -Depth 100 -Compress
# Write-TraceMessage "RESULT" $($json_obj | ConvertTo-Json -Depth 100 -Compress)
$response = $json_obj | ConvertTo-Json -Depth 100 -Compress
Write-Host $response
return
@ -162,16 +150,6 @@ function Write-TraceMessage {
function run_loop {
param($data)
# param(
# [Parameter(
# Position = 0,
# Mandatory = $true,
# ValueFromPipeline = $true,
# ValueFromPipelineByPropertyName = $true)
# ]
# [Alias('thedata')]
# $data
# )
$prim = "Primitive"
$method = $data | Select-Object "method"
$params = $data.params
@ -215,16 +193,16 @@ function run_loop {
}
function Get-PipedData {
param(
param(
[Parameter(
Position = 0,
Mandatory = $true,
Position = 0,
Mandatory = $true,
ValueFromPipeline = $true,
ValueFromPipelineByPropertyName = $true)
]
[Alias('piped')]
[String]$piped_input
)
)
process {
# Write-Error $piped_input
@ -234,22 +212,6 @@ function Get-PipedData {
}
}
# $Input | % { Write-Host PSInput $_ }
# $Input | ForEach-Object {
# $json = ConvertFrom-Json $_
# $method = $json -replace "`n", ", " | Select-Object "method"
# $params = $json -replace "`n", ", " | Select-Object "params"
# if ($method[0].method -eq "config") {
# config
# } elseif ($method[0].method -eq "begin_filter") {
# begin_filter
# } elseif ($method[0].method -eq "end_filter") {
# end_filter
# } elseif ($method[0].method -eq "filter") {
# run_filter -params $params
# }
# }
# $prim = "Primitive"
# $j = $json | ConvertFrom-Json
# $j.params.value.$prim