modify_dot_gitconfig.ps1.tmpl

# Chezmoi modify script for ~/.gitconfig
# Manages only the marked section; the rest of the file is left untouched.
# This allows `git config --global` writes without causing chezmoi drift.

$currentContent = [Console]::In.ReadToEnd()

# Build the managed block (chezmoi renders expressions before this script runs)
$managedBlock = @'
# BEGIN chezmoi managed - do not edit between these markers
[include]
	path = ~/.gitconfig-chezmoi
[includeIf "gitdir:{{ .git_oss }}"]
	path = ~/.gitconfig-oss
{{ if .git_work -}}
[includeIf "gitdir:{{ .git_work }}"]
	path = ~/.gitconfig-work
{{ end -}}# END chezmoi managed
'@

# Normalize to LF line endings
$managedBlock = $managedBlock -replace "`r`n", "`n"
$currentContent = $currentContent -replace "`r`n", "`n"

if ($currentContent -match '(?s)# BEGIN chezmoi managed.*?# END chezmoi managed') {
    $result = $currentContent -replace '(?s)# BEGIN chezmoi managed.*?# END chezmoi managed', $managedBlock.Trim()
} else {
    # First run: import ~/.gitconfig-local contents if it exists, then append managed block
    $localConfig = Join-Path $env:USERPROFILE '.gitconfig-local'
    if (Test-Path $localConfig) {
        $localContent = (Get-Content $localConfig -Raw) -replace "`r`n", "`n"
        $currentContent = $currentContent.TrimEnd() + "`n`n" + $localContent.Trim() + "`n"
    }
    $result = $currentContent.TrimEnd() + "`n`n" + $managedBlock.Trim() + "`n"
}

$bytes = [System.Text.Encoding]::UTF8.GetBytes($result)
[Console]::OpenStandardOutput().Write($bytes, 0, $bytes.Length)