Created
March 22, 2017 20:57
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git + presenter + powershell
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param( | |
[switch]$autoclear | |
) | |
$options = @{} | |
$options.Add('next', "Next step") | |
$options.Add('prev', "Previous step") | |
$options.Add('reset', "Reset the current changes") | |
$options.Add('rebase', "Rebase all steps that follow the current") | |
$current = 0 | |
$skipped = $false | |
function initialize() { | |
clear-host | |
$script:steps = git branch | % { $_.substring(2) } | |
$script:current = [array]::indexof($steps, (git rev-parse --abbrev-ref HEAD)) | |
if ($current -lt 0) { | |
$script:current = 0 | |
} | |
$steps | write-host -fore green | |
options | |
} | |
function rebase() { | |
reset | |
checkout | |
$currentIndex = [array]::indexof($steps, $steps[$current]) | |
$nextIndex = [array]::indexof($steps, $steps[$current+1]) | |
while ($nextIndex -gt $currentIndex) { | |
next | |
$currentIndex = [array]::indexof($steps, $steps[$current]) | |
$nextIndex = [array]::indexof($steps, $steps[$current+1]) | |
$currentBranch = $steps[$current] | |
$prevBranch = $steps[$current-1] | |
write-host "- Rebasing '$currentBranch' based on '$prevBranch'" -fore yellow | |
git rebase $prevBranch | |
} | |
} | |
function reset() { | |
git reset --hard | |
git clean -df | |
} | |
function checkout() { | |
$step = $steps[$current] | |
git checkout $step | |
$branch = (git rev-parse --abbrev-ref HEAD) | |
if ($branch -ne $step) { | |
write-error "Failed to checkout out branch '$branch'" | |
} | |
} | |
function next() { | |
reset | |
$script:current++ | |
checkout | |
} | |
function prev() { | |
reset | |
$script:current-- | |
checkout | |
} | |
function options() { | |
if ($autoclear) { | |
if ($skipped) { | |
clear-host | |
} else { | |
write-host "" | |
write-host "" | |
} | |
$script:skipped = $true | |
} else { | |
write-host "" | |
write-host "" | |
} | |
write-host "Current" $steps[$current] -fore green | |
$action = select-option -title "What next?" -options $options | |
if ($action -eq 'next') { | |
next | |
options | |
} | |
if ($action -eq 'prev') { | |
prev | |
options | |
} | |
if ($action -eq 'reset') { | |
reset | |
options | |
} | |
if ($action -eq 'rebase') { | |
rebase | |
options | |
} | |
} | |
function select-option ([string]$title, $options) { | |
$menu = "" | |
$menu += $options.GetEnumerator() | sort-object $_.key | out-string | |
$menu += "Select an option by Name or Q to quit" | |
$selectedKey = $null | |
$run = $true | |
do { | |
$key = show-menu -menu $menu -title "`n$title" | |
if ($key -ne $null -and $key.ToLower() -eq 'Q') { | |
$run = $false | |
} else { | |
if ($options.ContainsKey($key)) { | |
$selectedKey = $key | |
$run = $false | |
} else { | |
write-warning "Invalid selection. Try again...`n" | |
} | |
} | |
} while ($run) | |
return $selectedKey | |
} | |
function show-menu([string]$menu, [string]$title="Menu") { | |
$menuPrompt = $title | |
$menuprompt += "`n" | |
$menuprompt += "-" * $title.Length | |
$menuprompt += "`n" | |
$menuPrompt += $menu | |
read-host -prompt $menuprompt | |
} | |
initialize |
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