#!/bin/sh # dsh one-line installer. # # curl -fsSL https://raw.githubusercontent.com/deepseek-harness/deepseek-harness/master/scripts/install.sh | sh # # It clones the harness under ~/.dsh/source (the master clone at # ~/.dsh/source/master), adds a per-install staging worktree at # ~/.dsh/source/staging- on branch dsh-staging/, checks # host dependencies (git, Node, pnpm) and offers to install a missing pnpm, runs # `pnpm install` (no build — the `bin/dsh` launcher runs the TypeScript source # through the repo's own tsx), points the stable `~/.dsh/source/current` symlink # at that staging worktree and symlinks `dsh` onto PATH at `current/bin/dsh`, # records your API credentials in the Harness home (`~/.dsh`) dsh reads at boot, # and drops you into `dsh`. Keeping every checkout under ~/.dsh/source keeps # successive upgrades in one place instead of scattered sibling clones, and lets # staging worktrees share the master clone's object store. The PATH symlink # resolves through `current`, so an upgrade repoints one stable symlink instead # of relinking PATH: the `dsh` on PATH never moves and can never dangle. # # When run from inside an existing checkout (e.g. `sh scripts/install.sh` rather # than `curl ... | sh`) it reuses that checkout in place and skips the # clone/worktree setup, leaving the working tree untouched and linking `dsh` # straight at that checkout's `bin/dsh` (no `current` indirection — the checkout # is not a managed staging worktree under the source container); DSH_REF is # ignored in that mode. Setting DSH_SOURCE to a different directory opts back # into the normal clone/worktree path. # # When run through `curl | sh` the script text arrives on stdin, so every # prompt and the final launch read the controlling terminal (/dev/tty) directly; # with no terminal the script prints the manual next steps instead. # # Overridable via environment: # DSH_REF branch or tag to clone/checkout (default: master) # DSH_REPO clone URL (default: the GitHub repo) # DSH_SOURCE source container directory (default: ~/.dsh/source) # DSH_MASTER master clone directory (default: $DSH_SOURCE/master) # DSH_CURRENT stable symlink to the active worktree (default: $DSH_SOURCE/current) # DSH_BIN_DIR directory the `dsh` symlink lands in (default: ~/.local/bin) # DSH_HOME Harness home holding the personal config (default: ~/.dsh) # FIXME(install-ts): Move the post-checkout workflow into a tested TypeScript # entrypoint; keep this POSIX shell file as the curl/source bootstrap. set -eu DSH_REF=${DSH_REF:-master} DSH_REPO=${DSH_REPO:-https://github.com/deepseek-harness/deepseek-harness.git} # DSH_SOURCE is the container directory that holds the master clone and every # staging worktree; DSH_MASTER is the one real clone inside it. Remember whether # the caller pinned the source container before defaulting it, so in-repo # detection only repoints an unset DSH_SOURCE. if [ -n "${DSH_SOURCE:-}" ]; then DSH_SOURCE_EXPLICIT=1; else DSH_SOURCE_EXPLICIT=0; fi DSH_SOURCE=${DSH_SOURCE:-$HOME/.dsh/source} DSH_MASTER=${DSH_MASTER:-$DSH_SOURCE/master} # The stable symlink the PATH launcher resolves through: PATH -> current/bin/dsh # -> /bin/dsh. Fresh installs and upgrades repoint this one symlink; the # PATH launcher itself is written once and never moves. In-repo reuse ignores it. DSH_CURRENT=${DSH_CURRENT:-$DSH_SOURCE/current} DSH_BIN_DIR=${DSH_BIN_DIR:-$HOME/.local/bin} # One UTC basic timestamp names this install's staging branch and worktree. DSH_STAMP=$(date -u +%Y%m%dT%H%M%SZ) DSH_STAGING_BRANCH=dsh-staging/$DSH_STAMP DSH_STAGING=$DSH_SOURCE/staging-$DSH_STAMP # --- in-repo detection --------------------------------------------------------- # Under `curl ... | sh` the script text arrives on stdin, so $0 is the shell # name and no file path resolves; running a checked-out copy (`sh # scripts/install.sh`) makes $0 the script file. When $0 is a readable file whose # parent is a scripts/ dir inside a real dsh checkout (bin/dsh launcher present), # reuse that checkout in place — link `dsh` straight at it and skip the # clone/worktree setup. An explicit DSH_SOURCE pointing elsewhere opts back into # the clone/worktree path. IN_REPO=0 if [ -f "$0" ]; then _self_dir=$(CDPATH= cd -- "$(dirname -- "$0")" 2>/dev/null && pwd -P) || _self_dir='' if [ -n "$_self_dir" ]; then _repo_root=$(dirname -- "$_self_dir") if [ "$(basename -- "$_self_dir")" = scripts ] \ && [ -x "$_repo_root/bin/dsh" ] && [ -f "$_repo_root/scripts/install.sh" ]; then if [ "$DSH_SOURCE_EXPLICIT" = 0 ] || [ "$DSH_SOURCE" = "$_repo_root" ]; then IN_REPO=1 # In-repo reuse links `dsh` at this checkout as-is; the master/staging # split applies only to fresh clone installs. DSH_STAGING=$_repo_root fi fi fi fi # --- terminal-aware prompting -------------------------------------------------- # stdin is the piped script, so read the controlling terminal for input. if { true /dev/null; then HAS_TTY=1 # Restore terminal echo on exit or interrupt: ask_secret disables echo between # its stty toggles, and dash (a common `sh`) does not run an EXIT trap when the # shell is killed by a signal, so the fatal signals need their own handler. A # successful run ends in exec, which replaces this process and drops the traps. trap 'stty echo /dev/null || true' EXIT trap 'stty echo /dev/null || true; exit 130' INT TERM HUP else HAS_TTY=0 fi # Colour only when writing to a terminal. if [ -t 1 ]; then B=$(printf '\033[1m'); DIM=$(printf '\033[2m'); RED=$(printf '\033[31m') GRN=$(printf '\033[32m'); YEL=$(printf '\033[33m'); RST=$(printf '\033[0m') else B=''; DIM=''; RED=''; GRN=''; YEL=''; RST='' fi info() { printf '%s==>%s %s\n' "$GRN" "$RST" "$1"; } step() { printf '\n%s==>%s %s%s%s\n' "$GRN" "$RST" "$B" "$1" "$RST"; } warn() { printf '%s warn%s %s\n' "$YEL" "$RST" "$1" >&2; } die() { printf '%serror%s %s\n' "$RED" "$RST" "$1" >&2; exit 1; } # ask PROMPT [DEFAULT] -> answer on stdout (plain-text line). ask() { [ "$HAS_TTY" = 1 ] || die "no terminal available for input; re-run in an interactive shell" printf '%s%s%s ' "$B" "$1" "$RST" >/dev/tty IFS= read -r _ans answer on stdout, with terminal echo suppressed. ask_secret() { [ "$HAS_TTY" = 1 ] || die "no terminal available for input; re-run in an interactive shell" printf '%s%s%s ' "$B" "$1" "$RST" >/dev/tty stty -echo /dev/null || true IFS= read -r _sec /dev/null || true printf '\n' >/dev/tty printf '%s' "$_sec" } # confirm PROMPT [Y] -> exit 0 on yes. Default is no unless second arg is "Y". confirm() { _def=${2:-N} if [ "$HAS_TTY" != 1 ]; then [ "$_def" = Y ] # non-interactive: take the default return fi if [ "$_def" = Y ]; then _hint='[Y/n]'; else _hint='[y/N]'; fi printf '%s%s%s %s ' "$B" "$1" "$RST" "$_hint" >/dev/tty IFS= read -r _r /dev/null 2>&1 || die "git is required but not found. Install git, then re-run." info "git ... ok" # Node ^22.19.0 || >=24.0.0 (see the root package.json "engines" field). node_ok() { command -v node >/dev/null 2>&1 || return 1 _v=$(node -v 2>/dev/null) || return 1 _v=${_v#v} _major=${_v%%.*} _rest=${_v#*.} _minor=${_rest%%.*} case "$_major" in ''|*[!0-9]*) return 1 ;; esac case "$_minor" in ''|*[!0-9]*) _minor=0 ;; esac [ "$_major" -ge 24 ] && return 0 [ "$_major" -eq 22 ] && [ "$_minor" -ge 19 ] && return 0 return 1 } if node_ok; then info "node $(node -v) ... ok" else if command -v node >/dev/null 2>&1; then die "Node $(node -v) is unsupported. dsh needs ^22.19.0 || >=24.0.0 — upgrade Node, then re-run." fi die "Node is required but not found. Install Node ^22.19.0 || >=24, then re-run." fi # pnpm is the only dependency we offer to install for you. if command -v pnpm >/dev/null 2>&1; then info "pnpm $(pnpm --version 2>/dev/null) ... ok" else warn "pnpm is not installed." if confirm "Install pnpm now?" Y; then if command -v corepack >/dev/null 2>&1 && corepack enable pnpm >/dev/null 2>&1; then info "enabled pnpm via corepack" elif command -v npm >/dev/null 2>&1 && npm install -g pnpm >/dev/null 2>&1; then info "installed pnpm via npm" else die "could not install pnpm automatically. Install it (https://pnpm.io/installation), then re-run." fi command -v pnpm >/dev/null 2>&1 || die "pnpm still not on PATH after install. Open a new shell, then re-run." else die "pnpm is required. Install it (https://pnpm.io/installation), then re-run." fi fi # --- 2. clone the master and lay out the staging worktree --------------------- # Fresh installs keep one real clone at $DSH_MASTER and check the running code # out as a git worktree at $DSH_STAGING, so every checkout lives under # $DSH_SOURCE and shares one object store. In-repo reuse links `dsh` at the # existing checkout untouched. if [ "$IN_REPO" = 1 ]; then step "Using existing checkout at $DSH_STAGING" info "running from inside the repo — skipping clone (DSH_REF ignored, working tree left untouched)" else step "Fetching source into $DSH_MASTER" if [ -d "$DSH_MASTER/.git" ]; then info "existing master clone found — updating" git -C "$DSH_MASTER" fetch origin "$DSH_REF" # Reset the master checkout to the freshly fetched tip. FETCH_HEAD (not # origin/) so this resolves for a tag as well as a branch, and -B makes # the re-run idempotent whether or not DSH_REF changed since the last install. git -C "$DSH_MASTER" checkout -q -B "$DSH_REF" FETCH_HEAD else mkdir -p "$DSH_SOURCE" git clone --branch "$DSH_REF" "$DSH_REPO" "$DSH_MASTER" fi step "Adding staging worktree at $DSH_STAGING" [ -e "$DSH_STAGING" ] && die "staging path $DSH_STAGING already exists — remove it or set DSH_SOURCE elsewhere, then re-run." # The staging worktree owns the branch dsh runs from; the master clone stays on # $DSH_REF as the fetch/upgrade base. Exclude the per-worktree merge lock in the # master clone's info/exclude, which every linked worktree inherits. git -C "$DSH_MASTER" worktree add -b "$DSH_STAGING_BRANCH" "$DSH_STAGING" FETCH_HEAD 2>/dev/null \ || git -C "$DSH_MASTER" worktree add -b "$DSH_STAGING_BRANCH" "$DSH_STAGING" HEAD _exclude="$DSH_MASTER/.git/info/exclude" if [ -f "$_exclude" ] && ! grep -qxF '.agents/merge.lock' "$_exclude" 2>/dev/null; then printf '.agents/merge.lock\n' >>"$_exclude" fi mkdir -p "$DSH_STAGING/.agents" : >"$DSH_STAGING/.agents/merge.lock" fi # --- 3. install dependencies (no build; the launcher runs from source) -------- step "Installing dependencies with pnpm (this can take a while)" ( cd "$DSH_STAGING" && pnpm install ) [ -x "$DSH_STAGING/bin/dsh" ] || die "launcher $DSH_STAGING/bin/dsh missing after install — is DSH_REF a branch that ships apps/cli?" # --- 4. put `dsh` on PATH ------------------------------------------------------ # Clone installs go through a stable `current` symlink so an upgrade repoints # one symlink (current -> new worktree) and the PATH launcher never moves: # PATH/dsh -> current/bin/dsh -> /bin/dsh. In-repo reuse links PATH # straight at the checkout, since that checkout is not a managed worktree. step "Linking dsh into $DSH_BIN_DIR" mkdir -p "$DSH_BIN_DIR" if [ "$IN_REPO" = 1 ]; then DSH_LAUNCH_TARGET=$DSH_STAGING/bin/dsh ln -sf "$DSH_LAUNCH_TARGET" "$DSH_BIN_DIR/dsh" info "linked $DSH_BIN_DIR/dsh -> $DSH_LAUNCH_TARGET" else # Point `current` at this staging worktree with `ln -sfn`: -f replaces an # existing `current` (re-run or upgrade) and -n stops `ln` from dereferencing # an existing symlink-to-directory and dropping the new link *inside* the old # worktree. `mv` is unusable here — BSD/macOS `mv` follows the existing dir # symlink the same way. The swap is one unlink+symlink pair on a local fs; the # installer holds no other process racing this path. ln -sfn "$DSH_STAGING" "$DSH_CURRENT" info "pointed $DSH_CURRENT -> $DSH_STAGING" DSH_LAUNCH_TARGET=$DSH_CURRENT/bin/dsh ln -sf "$DSH_LAUNCH_TARGET" "$DSH_BIN_DIR/dsh" info "linked $DSH_BIN_DIR/dsh -> $DSH_LAUNCH_TARGET" fi case ":$PATH:" in *":$DSH_BIN_DIR:"*) ON_PATH=1 ;; *) ON_PATH=0 ;; esac if [ "$ON_PATH" = 0 ]; then warn "$DSH_BIN_DIR is not on your PATH." _line="export PATH=\"$DSH_BIN_DIR:\$PATH\"" _rc='' _sh=${SHELL:-} # SHELL may be unset; word-removal on an unset var trips set -u under dash. case "${_sh##*/}" in zsh) _rc="$HOME/.zshrc" ;; bash) _rc="$HOME/.bashrc" ;; esac if [ -n "$_rc" ] && [ -f "$_rc" ] && grep -qF "$_line" "$_rc" 2>/dev/null; then info "$_rc already exports $DSH_BIN_DIR — open a new shell to pick it up" elif [ -n "$_rc" ] && confirm "Add it to $_rc?" Y; then printf '\n# Added by the dsh installer\n%s\n' "$_line" >>"$_rc" info "updated $_rc — run 'source $_rc' or open a new shell to pick it up" else warn "add this line to your shell profile yourself:" printf ' %s\n' "$_line" fi fi # --- 5. credentials ------------------------------------------------------------ # Mirror app-boot's resolveDshHome precedence ($DSH_HOME, else ~/.dsh) so creds land where dsh reads them. if [ -n "${DSH_HOME:-}" ]; then CONF="$DSH_HOME" else CONF="$HOME/.dsh" fi ENV_FILE="$CONF/.env" step "Configuring credentials" if [ -f "$ENV_FILE" ] && grep -q '^DEEPSEEK_API_KEY=' "$ENV_FILE" 2>/dev/null; then info "DEEPSEEK_API_KEY already set in $ENV_FILE" if ! confirm "Replace it?" N; then SKIP_CREDS=1 fi fi if [ "${SKIP_CREDS:-0}" != 1 ]; then if [ "$HAS_TTY" = 1 ]; then API_KEY=$(ask_secret "DeepSeek API key (input hidden):") if [ -z "$API_KEY" ]; then warn "no key entered — skipping. Set DEEPSEEK_API_KEY in $ENV_FILE before using dsh." else BASE_URL=$(ask "DeepSeek base URL (optional, Enter to skip):") mkdir -p "$CONF" # The installer owns exactly the two DEEPSEEK_* lines; any other lines the # user keeps in this .env are preserved. The rewrite happens in a subshell # so umask 077 (which closes the create-time permission race) does not leak # into the exec'd dsh, and lands atomically via a same-dir temp + mv. _tmp="$ENV_FILE.dsh.$$" ( umask 077 if [ -f "$ENV_FILE" ]; then grep -v -e '^DEEPSEEK_API_KEY=' -e '^DEEPSEEK_BASE_URL=' "$ENV_FILE" >"$_tmp" || true else : >"$_tmp" fi printf 'DEEPSEEK_API_KEY=%s\n' "$API_KEY" >>"$_tmp" if [ -n "$BASE_URL" ]; then printf 'DEEPSEEK_BASE_URL=%s\n' "$BASE_URL" >>"$_tmp"; fi ) mv "$_tmp" "$ENV_FILE" chmod 600 "$ENV_FILE" 2>/dev/null || true info "wrote $ENV_FILE" fi else warn "no terminal for credential input — set DEEPSEEK_API_KEY in $ENV_FILE before using dsh." fi fi # --- 6. launch ----------------------------------------------------------------- step "Done" if [ "$HAS_TTY" = 1 ]; then info "launching dsh — run 'dsh' anytime to start again" exec "$DSH_BIN_DIR/dsh"