FolderBookmarks.psm1

<#
    Module FolderBookmarks
 
    The module provides functions to manage and use bookmarks that point to folders.
    Bookmarks can be created, changed and removed. Each change is immediately stored in the
    user's CliXml file.
    The CliXml file in the user's profile can be imported via a function. It's advised to
    perform the import in the user's $profile script so the bookmarks are available when a
    new PowerShell session is started.
 
    Version history
    ---------------
    v1.0.2 - Details for publishing
    v1.0.1 - Implemented support for -WhatIf and -Confirm in Set-FolderBookmark and Remove-FolderBookmark
    v1.0.0 - Initial version
 
    Apache License
    Version 2.0, January 2004
    http://www.apache.org/licenses/
#>


$Script:folderBMs = @{}
$Script:folderBMPath = Join-Path (Split-Path -Parent $profile) .folderBM.clixml

function Set-FolderBookmark {
    <#
    .SYNOPSIS
        Stores a folder ath to a named bookmark
    .DESCRIPTION
        The given path is stored to a bookmark that can be used with Get-FolderBookmark
 
        The list of bookmarks is exported to the user profile using Export-FolderBookmarks
    .PARAMETER Name
        Mandatory: yes, Alias(es): n
    .PARAMETER Path
        Mandatory: no, Alias(es): p
        Specifies the path to be stored to the bookmark. If not specified, ".\" is used
    .EXAMPLE
        Set-FolderBookmark -Name Sys32 -Path C:\Windows\System32
 
        Stores a bookmark with the name Sys32 that points to the folder C:\Windows\System32
    .EXAMPLE
        cd C:\Projects\PowerShell\ModuleDev\Test1
        Set-FolderBookmark Test1
 
        Stores a bookmark with the name Test1 that points to the current folder
    .NOTES
        Version history
        ---------------
        v1.0.0 - Initial version
    #>


    [CmdletBinding(SupportsShouldProcess=$true)]
    param (
        [Parameter(Position=0, Mandatory=$true)][Alias("n")][string]$Name,
        [Parameter(Position=1)][Alias("p")][string]$Path = $(Get-Location).Path
    )

    if (!(Get-Item $Path).PSIsContainer) {
        Write-Error "$Path is not a folder." -Category InvalidData -RecommendedAction "Please provide a folder path."
        return
    }

    if ($PSCmdlet.ShouldProcess($Name, "Set FolderBookmark")) {
        if ($Script:folderBMs.ContainsKey($Name)) {
            #Update existing entry
            $Script:folderBMs.Set_Item($Name, $Path)
        }
        else {
            #Add new entry to collection
            $Script:folderBMs.Add($Name, $Path)
        }
        Export-FolderBookmark
    }
}
New-Alias -Name setbm -Value Set-FolderBookmark
New-Alias -Name bookmark -Value Set-FolderBookmark

function Use-FolderBookmark {
    <#
    .SYNOPSIS
        Retrieves the folder from a named bookmark and sets current location to the folder
    .PARAMETER Name
        Mandatory: yes, Alias(es): n
    .EXAMPLE
        Use-FolderBookmark -Name Sys32
 
        Changes the current location to folder stored as bookmark Sys32
    .EXAMPLE
        goto test1
 
        Changes the current location to folder stored as bookmark test1
    .NOTES
        Version history
        ---------------
        v1.0.0 - Initial version
    #>


    [CmdletBinding()]
    param (
        [Parameter(Position=0, Mandatory=$true)][Alias("n")][string]$Name
    )

    Set-Location $Script:folderBMs.Get_Item($Name)
}
New-Alias -Name goto -Value Use-FolderBookmark
New-Alias -Name getbm -Value Use-FolderBookmark

function Remove-FolderBookmark {
    <#
    .SYNOPSIS
        Removes the named bookmark from the bookmark-list
    .DESCRIPTION
        Removes the bookmark with specified name from the bookmark-list.
 
        The list of bookmarks is exported to the user profile using Export-FolderBookmarks
    .PARAMETER Name
        Mandatory: yes, Alias(es): n
    .EXAMPLE
        Use-FolderBookmark -Name Sys32
 
        Changes the current location to folder stored as bookmark Sys32
    .EXAMPLE
        goto test1
 
        Changes the current location to folder stored as bookmark test1
    .NOTES
        Version history
        ---------------
        v1.0.1 - Added support for pipeline and multiple names
        v1.0.0 - Initial version
    #>


    [CmdletBinding(SupportsShouldProcess=$true)]
    param (
        [Parameter(Position=0, Mandatory=$true, ValueFromPipeline=$true, ValueFromPipelineByPropertyName=$true)][Alias("n")][string[]]$Name
    )

    Begin { }

    Process {
        foreach ($n in $Name) {
            if ($PSCmdlet.ShouldProcess($n, "Remove folder bookmark")) {
                $Script:folderBMs.Remove($n)
                Write-Verbose "Removed bookmark $n"
            }
        }
    }

    End {
        if ($PSCmdlet.ShouldProcess("*", "Export folder bookmark")) {
            Export-FolderBookmark
        }
    }
}
New-Alias -Name rembm -Value Remove-FolderBookmark
New-Alias -Name unbookmark -Value Remove-FolderBookmark

function Get-FolderBookmark {
    <#
    .SYNOPSIS
        Lists the folder bookmarks
    .EXAMPLE
        Get-FolderBookmark
 
        Lists all bookmark
    .NOTES
        Version history
        ---------------
        v1.0.0 - Initial version
    #>


    $Script:folderBMs.GetEnumerator() | Sort-Object Name
}
New-Alias -Name listbm -Value Get-FolderBookmark

function Export-FolderBookmark {
    <#
    .SYNOPSIS
        Exports the folder bookmarks to the user's profile folder
    .DESCRIPTION
        Exports the folder bookmarks to the user's profile folder with the name .folderBM.xml
    .EXAMPLE
        Export-FolderBookmark
 
        Exports all bookmarks to file in current users profile
    .NOTES
        Version history
        ---------------
        v1.0.0 - Initial version
    #>


    $Script:folderBMs | Export-Clixml -Path $Script:folderBMPath -Encoding UTF8 -Force
}
New-Alias -Name expbm -Value Export-FolderBookmark

function Import-FolderBookmark {
    <#
    .SYNOPSIS
        Imports the folder bookmarks from the user's profile folder
    .DESCRIPTION
        Imports the folder bookmarks from the user's profile file with the name .folderBM.xml
        Existing bookmarks in memory will be overwritten
 
        To automatically import the bookmarks into each user session, it's easy to add the command to
        the users profile script.
    .EXAMPLE
        Import-FolderBookmark
 
        Imports all bookmarks from file
    .NOTES
        Version history
        ---------------
        v1.0.0 - Initial version
    #>

    if (Test-Path $Script:folderBMPath) {
        $Script:folderBMs = Import-Clixml -Path $Script:folderBMPath
    }
}
New-Alias -Name impbm -Value Import-FolderBookmark