feat(cli): add sow sandbox command + env-patch module - #4
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Adds packages/cli/src/env-patch.ts: a generic, dependency-free env file patcher that merges keys, preserves comments and unrelated vars, writes a .sow.bak before mutating, and supports interactive prompt + revert. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Replaces the clobber-or-append logic with patchEnvFile, which always merges and writes a backup. The --append flag becomes a no-op with a deprecation notice on stderr. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
sow sandbox is a thin composition over detectConnection, createConnector, createBranch, and patchEnvFile. It auto-detects the source Postgres, samples it, spins up a local Docker branch, prints DATABASE_URL, and prompts to patch .env.local. Adds --yes / --no-env-file flags. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Restores an env file from its .sow.bak backup written by patchEnvFile, giving users a one-command undo for sow sandbox / sow branch create --env-file. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This was referenced Apr 6, 2026
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Summary
Lane D of the eng review plan: a flagship zero-config CLI command and a generic env file patcher.
sow sandbox [url]— auto-detects the source Postgres, samples + sanitizes it, spins up a local Docker branch, and patches.env.localsonpm run devjust works. Thin composition overdetectConnection,createConnector,createBranch, andpatchEnvFile.packages/cli/src/env-patch.ts— generic env file patcher used bysow sandbox,sow branch create --env-file, and the newsow env revert. Merges keys, preserves comments and unrelated vars, writes a.sow.bakbackup, supports interactive prompt + revert, and refuses to clobber existing backups.sow env revert [path]— one-command undo that restores from.sow.bak.sow branch create --env-filenow usespatchEnvFileinstead of clobbering.--appendis a deprecated no-op (env-file always merges now).Test plan
env-patch(create, merge, overwrite, no-op, prompt accept/decline, backup-collision, quoting, comments, revert happy/error)sandbox(single candidate, no candidate, multi+json error, multi+quiet, existing branch reuse, --no-env-file, --yes, connector reuse)bunx tsupclean for@sowdb/clibunx eslintclean on touched filesBisectable commits
feat(cli): extract env-patch module with backup + revertrefactor(cli): use env-patch in branch create --env-filefeat(cli): add sow sandbox command (flagship zero-config flow)feat(cli): add sow env revert command🤖 Generated with Claude Code