Microsoft.PowerShell_profile.ps1

$PSDefaultParameterValues['Out-File:Encoding'] = 'utf8'
$PSDefaultParameterValues['*:Encoding'] = 'utf8'
$global:OutputEncoding = [System.Text.Encoding]::UTF8
[console]::OutputEncoding = [System.Text.Encoding]::UTF8

# 環境判定
if ($env:CODEX_SHELL) {
    return
}
$isWindowsTerminal = [bool]$env:WT_SESSION
$isVSCode = $env:TERM_PROGRAM -eq 'vscode'

# 履歴ファイル設定
$historyFile = if ($isWindowsTerminal) {
    "WindowsTerminal_history.txt"
} elseif ($isVSCode) {
    "VSCode_history.txt"
} else {
    "ConsoleHost_history.txt"
}

$historyPath = Join-Path $env:APPDATA "Microsoft\Windows\PowerShell\PSReadLine\$historyFile"
Set-PSReadLineOption -HistorySavePath $historyPath
Set-PSReadLineOption -PredictionSource History

# 追加のprofile
if ($isWindowsTerminal) {
    . "~\source\pwsh\wt_profile.ps1"
}elseif ($isVSCode){
    . "~\source\pwsh\vscode_profile.ps1"
}

vscode_profile.ps1

# ワークスペースごとにコマンド履歴を分ける

# 履歴ファイルを保存するベースディレクトリ
$HistoryBaseDir = Join-Path $env:APPDATA "Microsoft\Windows\PowerShell\PSReadLine\vscodeTerminal"
$global:LastHistoryPath = ""

function Set-DirectoryHistory {
    # 1. パスが変わっていない場合は何もせずリターン
    if ($PWD.Path -eq $global:LastHistoryPath) { return }

    if (-not (Test-Path -Path $HistoryBaseDir)) {
        New-Item -ItemType Directory -Path $HistoryBaseDir | Out-Null
    }

    # 2. パスが変わったときだけハッシュ計算と設定更新を行う
    $md5 = [System.Security.Cryptography.MD5]::Create()
    $bytes = [System.Text.Encoding]::UTF8.GetBytes($PWD.Path)
    $hash = ($md5.ComputeHash($bytes) | ForEach-Object { $_.ToString("x2") }) -join ""
    $shortHash = $hash.Substring(0, 8)

    $folderName = Split-Path $PWD.Path -Leaf
    if ($folderName -eq "") { $folderName = "root" }

    $fileName = "${shortHash}_${folderName}_history.txt"
    $historyPath = Join-Path $HistoryBaseDir $fileName

    # 設定を更新して通知
    Set-PSReadLineOption -HistorySavePath $historyPath
    Write-Host " [History switched to: $fileName]" -ForegroundColor DarkGreen

    # 最後に現在のパスを記憶
    $global:LastHistoryPath = $PWD.Path
}

# プロンプト表示のタイミングで履歴パスを更新する場合
# $PROMPT_COMMAND = { Set-DirectoryHistory }

# PowerShell起動時に実行
Set-DirectoryHistory

# --------------------------------------------------------------------

# .venvがあればアクティベート
function Invoke-VenvActivate {
    $current = Get-Location
    $locations = @($current, (Split-Path $current -Parent))

    foreach ($path in $locations) {
        $activateScript = Join-Path $path ".venv\Scripts\Activate.ps1"
        if (Test-Path $activateScript) {
            Write-Host "Activating venv: $activateScript" -ForegroundColor Green
            . $activateScript
            return
        }
    }
}

Invoke-VenvActivate