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path: root/lib/spack/spack/cmd/edit.py
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# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)

import glob
import os

import llnl.util.tty as tty

import spack.cmd
import spack.paths
import spack.repo
from spack.spec import Spec
from spack.util.editor import editor

description = "open package files in $EDITOR"
section = "packaging"
level = "short"


def edit_package(name, repo_path, namespace):
    """Opens the requested package file in your favorite $EDITOR.

    Args:
        name (str): The name of the package
        repo_path (str): The path to the repository containing this package
        namespace (str): A valid namespace registered with Spack
    """
    # Find the location of the package
    if repo_path:
        repo = spack.repo.Repo(repo_path)
    elif namespace:
        repo = spack.repo.PATH.get_repo(namespace)
    else:
        repo = spack.repo.PATH
    path = repo.filename_for_package_name(name)

    spec = Spec(name)
    if os.path.exists(path):
        if not os.path.isfile(path):
            tty.die("Something is wrong. '{0}' is not a file!".format(path))
        if not os.access(path, os.R_OK):
            tty.die("Insufficient permissions on '%s'!" % path)
    else:
        raise spack.repo.UnknownPackageError(spec.name)

    editor(path)


def setup_parser(subparser):
    excl_args = subparser.add_mutually_exclusive_group()

    # Various types of Spack files that can be edited
    # Edits package files by default
    excl_args.add_argument(
        "-b",
        "--build-system",
        dest="path",
        action="store_const",
        const=spack.paths.build_systems_path,
        help="edit the build system with the supplied name",
    )
    excl_args.add_argument(
        "-c",
        "--command",
        dest="path",
        action="store_const",
        const=spack.paths.command_path,
        help="edit the command with the supplied name",
    )
    excl_args.add_argument(
        "-d",
        "--docs",
        dest="path",
        action="store_const",
        const=os.path.join(spack.paths.lib_path, "docs"),
        help="edit the docs with the supplied name",
    )
    excl_args.add_argument(
        "-t",
        "--test",
        dest="path",
        action="store_const",
        const=spack.paths.test_path,
        help="edit the test with the supplied name",
    )
    excl_args.add_argument(
        "-m",
        "--module",
        dest="path",
        action="store_const",
        const=spack.paths.module_path,
        help="edit the main spack module with the supplied name",
    )

    # Options for editing packages
    excl_args.add_argument("-r", "--repo", default=None, help="path to repo to edit package in")
    excl_args.add_argument("-N", "--namespace", default=None, help="namespace of package to edit")

    subparser.add_argument("package", nargs="?", default=None, help="package name")


def edit(parser, args):
    name = args.package

    # By default, edit package files
    path = spack.paths.packages_path

    # If `--command`, `--test`, or `--module` is chosen, edit those instead
    if args.path:
        path = args.path
        if name:
            # convert command names to python module name
            if path == spack.paths.command_path:
                name = spack.cmd.python_name(name)

            path = os.path.join(path, name)
            if not os.path.exists(path):
                files = glob.glob(path + "*")
                exclude_list = [".pyc", "~"]  # exclude binaries and backups
                files = list(filter(lambda x: all(s not in x for s in exclude_list), files))
                if len(files) > 1:
                    m = "Multiple files exist with the name {0}.".format(name)
                    m += " Please specify a suffix. Files are:\n\n"
                    for f in files:
                        m += "        " + os.path.basename(f) + "\n"
                    tty.die(m)
                if not files:
                    tty.die("No file for '{0}' was found in {1}".format(name, path))
                path = files[0]  # already confirmed only one entry in files

        editor(path)
    elif name:
        edit_package(name, args.repo, args.namespace)
    else:
        # By default open the directory where packages live
        editor(path)