INI/Remove-IniEntry.ps1
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# Copyright 2012 Aaron Jensen # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. function Remove-IniEntry { <# .SYNOPSIS Removes an entry/line/setting from an INI file. .DESCRIPTION A configuration file consists of sections, led by a `[section]` header and followed by `name = value` entries. This function removes an entry in an INI file. Something like this: [ui] username = Regina Spektor <regina@reginaspektor.com> [extensions] share = extdiff = Names are not allowed to contains the equal sign, `=`. Values can contain any character. The INI file is parsed using `Split-Ini`. [See its documentation for more examples.](Split-Ini.html) If the entry doesn't exist, does nothing. Be default, operates on the INI file case-insensitively. If your INI is case-sensitive, use the `-CaseSensitive` switch. .LINK Set-IniEntry .LINK Split-Ini .EXAMPLE Remove-IniEntry -Path C:\Projects\Carbon\StupidStupid.ini -Section rat -Name tails Removes the `tails` item in the `[rat]` section of the `C:\Projects\Carbon\StupidStupid.ini` file. .EXAMPLE Remove-IniEntry -Path C:\Users\me\npmrc -Name 'prefix' -CaseSensitive Demonstrates how to remove an INI entry in an INI file that is case-sensitive. #> [CmdletBinding(SupportsShouldProcess=$true)] param ( [Parameter(Mandatory=$true)] [string] # The path to the INI file. $Path, [Parameter(Mandatory=$true)] [string] # The name of the INI entry to remove. $Name, [string] # The section of the INI where the entry should be set. $Section, [Switch] # Removes INI entries in a case-sensitive manner. $CaseSensitive ) Set-StrictMode -Version 'Latest' $settings = @{ } if( Test-Path $Path -PathType Leaf ) { $settings = Split-Ini -Path $Path -AsHashtable -CaseSensitive:$CaseSensitive } else { Write-Error ('INI file {0} not found.' -f $Path) return } $key = $Name if( $Section ) { $key = '{0}.{1}' -f $Section,$Name } if( $settings.ContainsKey( $key ) ) { $lines = New-Object 'Collections.ArrayList' Get-Content -Path $Path | ForEach-Object { [void] $lines.Add( $_ ) } $null = $lines.RemoveAt( ($settings[$key].LineNumber - 1) ) if( $PSCmdlet.ShouldProcess( $Path, ('remove INI entry {0}' -f $key) ) ) { $lines | Out-File -FilePath $Path -Encoding OEM } } } |