Crazy! Added support for ALT+\

requirements.txt

@@ -0,0 +1,4 @@
+httpx
+prompt_toolkit
+rich
+hashlib

src/finish.py

@@ -0,0 +1,368 @@
+#!/home/mike/.venvs/cli/bin/python3
+"""
+finish.py  –  AI shell completions that never leave your machine.
+"""
+from __future__ import annotations
+import hashlib
+
+import argparse, asyncio, json, os, re, shlex, subprocess, sys, time
+from pathlib import Path
+from typing import List, Dict, Optional
+
+import httpx
+from prompt_toolkit import ANSI, Application
+from prompt_toolkit.buffer import Buffer
+from prompt_toolkit.key_binding import KeyBindings
+from prompt_toolkit.layout import (
+    ConditionalContainer, FormattedTextControl, HSplit, Layout, Window
+)
+from prompt_toolkit.widgets import Label
+from rich.console import Console
+from rich.spinner import Spinner
+
+VERSION = "0.5.0"
+CFG_DIR   = Path.home()/".finish"
+CFG_FILE  = CFG_DIR/"finish.json"
+CACHE_DIR = CFG_DIR/"cache"
+LOG_FILE  = CFG_DIR/"finish.log"
+
+console = Console()
+
+# --------------------------------------------------------------------------- #
+#  Config
+# --------------------------------------------------------------------------- #
+DEFAULT_CFG = {
+    "provider": "ollama",
+    "model": "llama3:latest",
+    "endpoint": "http://localhost:11434/api/chat",
+    "temperature": 0.0,
+    "api_prompt_cost": 0.0,
+    "api_completion_cost": 0.0,
+    "max_history_commands": 20,
+    "max_recent_files": 20,
+    "cache_size": 100,
+}
+
+def cfg() -> dict:
+    if not CFG_FILE.exists():
+        CFG_DIR.mkdir(exist_ok=True)
+        CFG_FILE.write_text(json.dumps(DEFAULT_CFG, indent=2))
+    return json.loads(CFG_FILE.read_text())
+
+# --------------------------------------------------------------------------- #
+#  Context builders
+# --------------------------------------------------------------------------- #
+def _sanitise_history() -> str:
+    hist = subprocess.check_output(["bash", "-ic", "history"]).decode()
+    # scrub tokens / hashes
+    for pat in [
+        r"\b[0-9a-f]{32,40}\b",          # long hex
+        r"\b[A-Za-z0-9-]{36}\b",         # uuid
+        r"\b[A-Za-z0-9]{16,40}\b",       # api-keyish
+    ]:
+        hist = re.sub(pat, "REDACTED", hist)
+    return "\n".join(hist.splitlines()[-cfg()["max_history_commands"]:])
+
+def _recent_files() -> str:
+    try:
+        files = subprocess.check_output(
+            ["find", ".", "-maxdepth", "1", "-type", "f", "-printf", "%T@ %p\n"],
+            stderr=subprocess.DEVNULL,
+        ).decode()
+        return "\n".join(sorted(files.splitlines(), reverse=True)[: cfg()["max_recent_files"]])
+    except Exception:
+        return ""
+
+def _help_for(cmd: str) -> str:
+    try:
+        return subprocess.check_output([cmd, "--help"], stderr=subprocess.STDOUT, timeout=2).decode()
+    except Exception:
+        return f"{cmd} --help not available"
+
+def build_prompt(user_input: str) -> str:
+    c = cfg()
+    term_info = f"""User: {os.getenv("USER")}
+PWD:  {os.getcwd()}
+HOME: {os.getenv("HOME")}
+HOST: {os.getenv("HOSTNAME")}
+SHELL: bash"""
+    prompt = f"""You are a helpful bash-completion script.
+Generate 2–5 concise, valid bash commands that complete the user’s intent.
+
+Reply **only** JSON: {{"completions":["cmd1","cmd2",...]}}
+
+User command: {user_input}
+
+Terminal context:
+{term_info}
+
+History:
+{_sanitise_history()}
+
+Recent files:
+{_recent_files()}
+
+Help:
+{_help_for(user_input.split()[0])}"""
+    return prompt
+
+# --------------------------------------------------------------------------- #
+#  LLM call
+# --------------------------------------------------------------------------- #
+async def llm_complete(prompt: str) -> List[str]:
+    c = cfg()
+    payload = {
+        "model": c["model"],
+        "temperature": c["temperature"],
+        "messages": [
+            {"role": "system", "content": "You are a helpful bash completion assistant."},
+            {"role": "user", "content": prompt},
+        ],
+        "response_format": {"type": "text"},
+    }
+    if c["provider"] == "ollama":
+        payload["format"] = "json"
+        payload["stream"] = False
+
+    headers = {"Content-Type": "application/json"}
+    if c.get("api_key"):
+        headers["Authorization"] = f"Bearer {c['api_key']}"
+
+    try:
+        async with httpx.AsyncClient(timeout=30) as client:
+            resp = await client.post(c["endpoint"], headers=headers, json=payload)
+            resp.raise_for_status()
+            body = resp.json()
+    except httpx.ConnectError as e:
+        console.print(f"[red]Error:[/] Cannot connect to {c['endpoint']}")
+        console.print(f"[yellow]Check that your LLM server is running and endpoint is correct.[/]")
+        console.print(f"[yellow]Run 'finish config' to see current config.[/]")
+        return []
+    except Exception as e:
+        console.print(f"[red]Error:[/] {e}")
+        return []
+
+    # extract content
+    if c["provider"] == "ollama":
+        raw = body["message"]["content"]
+    else:
+        raw = body["choices"][0]["message"]["content"]
+
+    # Debug logging
+    if os.getenv("FINISH_DEBUG"):
+        LOG_FILE.parent.mkdir(exist_ok=True)
+        with open(LOG_FILE, "a") as f:
+            f.write(f"\n=== {time.strftime('%Y-%m-%d %H:%M:%S')} ===\n")
+            f.write(f"Raw response:\n{raw}\n")
+
+    # try json first
+    try:
+        result = json.loads(raw)["completions"]
+        if os.getenv("FINISH_DEBUG"):
+            with open(LOG_FILE, "a") as f:
+                f.write(f"Parsed completions: {result}\n")
+        return result
+    except Exception as e:
+        if os.getenv("FINISH_DEBUG"):
+            with open(LOG_FILE, "a") as f:
+                f.write(f"JSON parse failed: {e}\n")
+        # fallback: grep command-like lines
+        fallback = [ln for ln in raw.splitlines() if re.match(r"^(ls|cd|find|cat|grep|echo|mkdir|rm|cp|mv|pwd|chmod|chown)\b", ln)][:5]
+        if os.getenv("FINISH_DEBUG"):
+            with open(LOG_FILE, "a") as f:
+                f.write(f"Fallback completions: {fallback}\n")
+        return fallback
+
+# --------------------------------------------------------------------------- #
+#  TUI picker
+# --------------------------------------------------------------------------- #
+async def select_completion(completions: List[str]) -> Optional[str]:
+    if not completions:
+        return None
+    if len(completions) == 1:
+        return completions[0]
+
+    # If not in an interactive terminal, return first completion
+    if not sys.stdin.isatty():
+        return completions[0]
+
+    # Import here to avoid issues when not needed
+    from prompt_toolkit.input import create_input
+    from prompt_toolkit.output import create_output
+
+    kb = KeyBindings()
+    current = 0
+
+    def get_text():
+        return [
+            ("", "Select completion  (↑↓ navigate, Enter accept, Esc cancel)\n\n"),
+            *[
+                ("[SetCursorPosition]" if i == current else "", f"{c}\n")
+                for i, c in enumerate(completions)
+            ],
+        ]
+
+    @kb.add("up")
+    def _up(event):
+        nonlocal current
+        current = (current - 1) % len(completions)
+
+    @kb.add("down")
+    def _down(event):
+        nonlocal current
+        current = (current + 1) % len(completions)
+
+    @kb.add("enter")
+    def _accept(event):
+        event.app.exit(result=completions[current])
+
+    @kb.add("escape")
+    def _cancel(event):
+        event.app.exit(result=None)
+
+    control = FormattedTextControl(get_text)
+
+    # Force output to /dev/tty to avoid interfering with bash command substitution
+    try:
+        output = create_output(stdout=open('/dev/tty', 'w'))
+        input_obj = create_input(stdin=open('/dev/tty', 'r'))
+    except Exception:
+        # Fallback to first completion if tty not available
+        return completions[0]
+
+    app = Application(
+        layout=Layout(HSplit([Window(control, height=len(completions) + 2)])),
+        key_bindings=kb,
+        mouse_support=False,
+        erase_when_done=True,
+        output=output,
+        input=input_obj,
+    )
+    return await app.run_async()
+
+# --------------------------------------------------------------------------- #
+#  Cache
+# --------------------------------------------------------------------------- #
+def cached(key: str) -> Optional[List[str]]:
+    if not CACHE_DIR.exists():
+        CACHE_DIR.mkdir(parents=True)
+    f = CACHE_DIR / f"{key}.json"
+    if f.exists():
+        return json.loads(f.read_text())
+    return None
+
+def store_cache(key: str, completions: List[str]) -> None:
+    f = CACHE_DIR / f"{key}.json"
+    f.write_text(json.dumps(completions))
+    # LRU eviction
+    all_files = sorted(CACHE_DIR.glob("*.json"), key=lambda p: p.stat().st_mtime)
+    for old in all_files[: -cfg()["cache_size"]]:
+        old.unlink(missing_ok=True)
+
+# --------------------------------------------------------------------------- #
+#  Main entry
+# --------------------------------------------------------------------------- #
+async def complete_line(line: str) -> Optional[str]:
+    key = hashlib.md5(line.encode()).hexdigest()
+    comps = cached(key)
+    if comps is None:
+        # Write to /dev/tty if available to avoid interfering with command substitution
+        try:
+            status_console = Console(file=open('/dev/tty', 'w'), stderr=False)
+        except Exception:
+            status_console = console
+
+        with status_console.status("[green]Thinking…[/]"):
+            comps = await llm_complete(build_prompt(line))
+        store_cache(key, comps)
+    return await select_completion(comps)
+
+# --------------------------------------------------------------------------- #
+#  CLI
+# --------------------------------------------------------------------------- #
+def install_keybinding():
+    r"""Inject Bash binding Alt+\ -> finish"""
+    rc = Path.home()/".bashrc"
+    marker = "# finish.py key-binding"
+
+    # Use bind -x to allow modifying READLINE_LINE
+    snippet = f'''{marker}
+_finish_complete() {{
+    local result
+    result=$(finish --readline-complete "$READLINE_LINE" 2>/dev/null)
+    if [[ -n "$result" ]]; then
+        READLINE_LINE="$result"
+        READLINE_POINT=${{#READLINE_LINE}}
+    fi
+}}
+bind -x '"\\e\\\\": _finish_complete'
+'''
+
+    text = rc.read_text() if rc.exists() else ""
+    if marker in text:
+        return
+    rc.write_text(text + "\n" + snippet)
+    console.print("[green]Key-binding installed (Alt+\\)[/] – restart your shell.")
+
+def main():
+    # Handle readline-complete flag before argparse (for bash bind -x)
+    if "--readline-complete" in sys.argv:
+        idx = sys.argv.index("--readline-complete")
+        line = sys.argv[idx + 1] if idx + 1 < len(sys.argv) else ""
+        if line.strip():
+            choice = asyncio.run(complete_line(line))
+            if choice:
+                print(choice)
+        return
+
+    # Legacy flag support
+    if sys.argv[-1] == "--accept-current-line":
+        line = os.environ.get("READLINE_LINE", "")
+        if line.strip():
+            choice = asyncio.run(complete_line(line))
+            if choice:
+                sys.stdout.write(f"\x1b]0;\a")
+                sys.stdout.write(f"\x1b[2K\r")
+                sys.stdout.write(choice)
+                sys.stdout.flush()
+        return
+
+    parser = argparse.ArgumentParser(prog="finish", description="AI shell completions")
+    parser.add_argument("--version", action="version", version=VERSION)
+    sub = parser.add_subparsers(dest="cmd")
+    sub.add_parser("install", help="add Alt+\\ key-binding to ~/.bashrc")
+    sub.add_parser("config", help="show current config")
+    p = sub.add_parser("command", help="simulate double-tab")
+    p.add_argument("words", nargs="*", help="partial command")
+    p.add_argument("--dry-run", action="store_true", help="show prompt only")
+    args = parser.parse_args()
+
+    if args.cmd == "install":
+        install_keybinding()
+        return
+    if args.cmd == "config":
+        console.print_json(json.dumps(cfg()))
+        return
+    if args.cmd == "command":
+        line = " ".join(args.words)
+        if args.dry_run:
+            console.print(build_prompt(line))
+            return
+        choice = asyncio.run(complete_line(line))
+        if choice:
+            # Check if we're in an interactive shell
+            if os.isatty(sys.stdout.fileno()):
+                console.print(f"[dim]Selected:[/] [cyan]{choice}[/]")
+                console.print(f"\n[yellow]Tip:[/] Use [bold]Alt+\\[/] keybinding for seamless completion!")
+            else:
+                print(choice)
+        return
+    if len(sys.argv) == 1:
+        parser.print_help()
+        return
+
+if __name__ == "__main__":
+    try:
+        main()
+    except KeyboardInterrupt:
+        pass

src/finish.sh

@@ -253,6 +253,7 @@ log_request() {
     created=$(echo "$response_body" | jq -r ".created // $created")
     api_cost=$(echo "$prompt_tokens_int * $ACSH_API_PROMPT_COST + $completion_tokens_int * $ACSH_API_COMPLETION_COST" | bc)
     log_file=${ACSH_LOG_FILE:-"$HOME/.finish/finish.log"}
+    mkdir -p "$(dirname "$log_file")" 2>/dev/null
     echo "$created,$user_input_hash,$prompt_tokens_int,$completion_tokens_int,$api_cost" >> "$log_file"
 }