Classes

class ScriptRunner (shell: Shell)

Expand source code

class ScriptRunner:
    """
    Executes a .lpp script file line-by-line in the current shell.
    Supports:
      - #! shebang (ignored)
      - # comments
      - all shell syntax (pipes, redirects, &&, ||)
      - positional args: $1 $2 ... $@
    """

    def __init__(self, shell: "Shell"):
        self._shell = shell

    def run(self, path: str, args: list[str]) -> int:
        resolved = self._shell.kernel.vfs.resolve(path)
        try:
            with open(resolved, encoding="utf-8") as f:
                content = f.read()
        except FileNotFoundError:
            IOManager.error(f"sh: {path}: No such file")
            return 1
        except PermissionError:
            IOManager.error(f"sh: {path}: Permission denied")
            return 1

        # set positional variables
        for i, arg in enumerate(args, 1):
            EnvManager.set(str(i), arg)
        EnvManager.set("@", " ".join(args))
        EnvManager.set("#", str(len(args)))
        EnvManager.set("0", path)

        rc = 0
        for lineno, raw in enumerate(content.splitlines(), 1):
            line = raw.strip()
            if not line or line.startswith("#"):
                continue
            rc = self._shell.execute_line(line)

        return rc

Executes a .lpp script file line-by-line in the current shell.

Supports

• ! shebang (ignored)

• comments

• all shell syntax (pipes, redirects, &&, ||)
• positional args: $1 $2 … $@

Methods

def run(self, path: str, args: list[str]) ‑> int

Expand source code

def run(self, path: str, args: list[str]) -> int:
    resolved = self._shell.kernel.vfs.resolve(path)
    try:
        with open(resolved, encoding="utf-8") as f:
            content = f.read()
    except FileNotFoundError:
        IOManager.error(f"sh: {path}: No such file")
        return 1
    except PermissionError:
        IOManager.error(f"sh: {path}: Permission denied")
        return 1

    # set positional variables
    for i, arg in enumerate(args, 1):
        EnvManager.set(str(i), arg)
    EnvManager.set("@", " ".join(args))
    EnvManager.set("#", str(len(args)))
    EnvManager.set("0", path)

    rc = 0
    for lineno, raw in enumerate(content.splitlines(), 1):
        line = raw.strip()
        if not line or line.startswith("#"):
            continue
        rc = self._shell.execute_line(line)

    return rc