PowerShell/Docs/pull-repo.md

The pull-repo.ps1 Script

This PowerShell script pulls the latest updates into a local Git repository (including submodules).

Parameters

/home/mf/Repos/PowerShell/Scripts/pull-repo.ps1 [[-RepoDir] <String>] [<CommonParameters>]

-RepoDir <String>
    Specifies the file path to the local Git repository (default is working directory)
    
    Required?                    false
    Position?                    1
    Default value                "$PWD"
    Accept pipeline input?       false
    Accept wildcard characters?  false

[<CommonParameters>]
    This script supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, WarningAction, 
    WarningVariable, OutBuffer, PipelineVariable, and OutVariable.

Example

PS> ./pull-repo C:\MyRepo

Notes

Author: Markus Fleschutz | License: CC0

Related Links

https://github.com/fleschutz/PowerShell

Source Code

<#
.SYNOPSIS
	Pulls Git repo updates 
.DESCRIPTION
	This PowerShell script pulls the latest updates into a local Git repository (including submodules).
.PARAMETER RepoDir
	Specifies the file path to the local Git repository (default is working directory)
.EXAMPLE
	PS> ./pull-repo C:\MyRepo
.LINK
	https://github.com/fleschutz/PowerShell
.NOTES
	Author: Markus Fleschutz | License: CC0
#>

param([string]$RepoDir = "$PWD")

try {
	$StopWatch = [system.diagnostics.stopwatch]::startNew()

	Write-Host "⏳ (1/4) Searching for Git executable...  " -noNewline
	& git --version
	if ($lastExitCode -ne "0") { throw "Can't execute 'git' - make sure Git is installed and available" }

	Write-Host "⏳ (2/4) Checking repository...           📂$RepoDir"
	if (-not(Test-Path "$RepoDir" -pathType container)) { throw "Can't access folder: $RepoDir" }
	$Result = (git -C "$RepoDir" status)
	if ("$Result" -match "HEAD detached at ") { throw "Currently in detached HEAD state (not on a branch!), so nothing to pull" }
	$RepoDirName = (Get-Item "$RepoDir").Name

	Write-Host "⏳ (3/4) Pulling updates..."
	& git -C "$RepoDir" pull --recurse-submodules=yes
	if ($lastExitCode -ne "0") { throw "'git pull' failed with exit code $lastExitCode" }

	Write-Host "⏳ (4/4) Updating submodules... "
	& git -C "$RepoDir" submodule update --init --recursive
	if ($lastExitCode -ne "0") { throw "'git submodule update' failed with exit code $lastExitCode" }

	[int]$Elapsed = $StopWatch.Elapsed.TotalSeconds
	"✔️ updated repo 📂$RepoDirName in $Elapsed sec"
	exit 0 # success
} catch {
	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
	exit 1
}

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