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pull-repos.ps1
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<#
.SYNOPSIS
Pulls updates into Git repos
.DESCRIPTION
This PowerShell script pulls updates into all Git repositories in a folder (including submodules).
.PARAMETER parentDir
Specifies the path to the parent folder
.EXAMPLE
PS> ./pull-repos C:\MyRepos
⏳ (1) Searching for Git executable... git version 2.43.0
⏳ (2) Checking parent folder... 33 subfolders
⏳ (3/35) Pulling into 📂base256U...
...
.LINK
https://github.com/fleschutz/PowerShell
.NOTES
Author: Markus Fleschutz | License: CC0
#>
param([string]$parentDir = "$PWD")
try {
$stopWatch = [system.diagnostics.stopwatch]::startNew()
Write-Host "⏳ (1) Searching for Git executable...`t`t" -NoNewline
& git --version
if ($lastExitCode -ne "0") { throw "Can't execute 'git' - make sure Git is installed and available" }
Write-Host "⏳ (2) Checking parent folder...`t`t" -NoNewline
if (-not(Test-Path "$parentDir" -pathType container)) { throw "Can't access folder: $parentDir" }
$folders = (Get-ChildItem "$parentDir" -attributes Directory)
$numFolders = $folders.Count
$parentDirName = (Get-Item "$parentDir").Name
Write-Host "$numFolders subfolders"
[int]$step = 3
[int]$failed = 0
foreach ($folder in $folders) {
$folderName = (Get-Item "$folder").Name
Write-Host "⏳ ($step/$($numFolders + 2)) Pulling into 📂$folderName...`t`t" -NoNewline
& git -C "$folder" pull --recurse-submodules --jobs=4
if ($lastExitCode -ne "0") { $failed++; write-warning "'git pull' in 📂$folderName failed" }
& git -C "$folder" submodule update --init --recursive
if ($lastExitCode -ne "0") { throw "'git submodule update' in 📂$folder failed with exit code $lastExitCode" }
$step++
}
[int]$elapsed = $stopWatch.Elapsed.TotalSeconds
if ($failed -eq 0) {
"✅ Pulled into $numFolders repos at 📂$parentDir in $($elapsed)s."
exit 0 # success
} else {
"⚠️ Pulled into $numFolders repos at 📂$parentDir in $($elapsed)s but $failed failed!"
exit 1
}
} catch {
"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
exit 1
}