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# encoding: utf-8

"""

This module defines the things that are used in setup.py for building IPython

This includes:

* The basic arguments to setup

* Functions for finding things like packages, package data, etc.

* A function for checking dependencies.

"""

# Copyright (c) IPython Development Team.

# Distributed under the terms of the Modified BSD License.

import os

from pathlib import Path

import re

import sys

from glob import glob

from logging import log

from setuptools import Command

from setuptools.command.build_py import build_py

from setuptools.command.install import install

from setuptools.command.install_scripts import install_scripts

#-------------------------------------------------------------------------------

# Useful globals and utility functions

#-------------------------------------------------------------------------------

# A few handy globals

repo_root = Path(__file__).resolve().parent

def execfile(path, globs, locs=None):

locs = locs or globs

with path.open(encoding="utf-8") as f:

exec(compile(f.read(), str(path), "exec"), globs, locs)

#---------------------------------------------------------------------------

# Basic project information

#---------------------------------------------------------------------------

# release.py contains version, authors, license, url, keywords, etc.

execfile(Path(repo_root, "IPython", "core", "release.py"), globals())

# Create a dict with the basic information

# This dict is eventually passed to setup after additional keys are added.

setup_args = dict(

author = author,

author_email = author_email,

license = license,

)

#---------------------------------------------------------------------------

# Check package data

#---------------------------------------------------------------------------

def check_package_data(package_data):

"""verify that package_data globs make sense"""

print("checking package data")

for pkg, data in package_data.items():

pkg_root = Path(*pkg.split("."))

for d in data:

path = pkg_root / d

if "*" in str(path):

assert len(glob(str(path))) > 0, "No files match pattern %s" % path

else:

assert path.exists(), f"Missing package data: {path}"

def check_package_data_first(command):

"""decorator for checking package_data before running a given command

Probably only needs to wrap build_py

"""

class DecoratedCommand(command):

def run(self):

check_package_data(self.package_data)

command.run(self)

return DecoratedCommand

#---------------------------------------------------------------------------

# Find data files

#---------------------------------------------------------------------------

def find_data_files():

"""

Find IPython's data_files.

Just man pages at this point.

"""

if "freebsd" in sys.platform:

manpagebase = Path("man") / "man1"

else:

manpagebase = Path("share") / "man" / "man1"

# Simple file lists can be made by hand

manpages = [f for f in Path("docs/man").glob("*.1.gz") if f.is_file()]

if not manpages:

# When running from a source tree, the manpages aren't gzipped

manpages = [f for f in Path("docs/man").glob("*.1") if f.is_file()]

# And assemble the entire output list

data_files = [(str(manpagebase), [str(f) for f in manpages])]

return data_files

# The two functions below are copied from IPython.utils.path, so we don't need

# to import IPython (and hence its dependencies) during setup.

def target_outdated(target, deps):

"""Determine whether a target is out of date.

target_outdated(target,deps) -> 1/0

deps: list of filenames which MUST exist.

target: single filename which may or may not exist.

If target doesn't exist or is older than any file listed in deps, return

true, otherwise return false.

"""

try:

target_time = Path(target).stat().st_mtime

except FileNotFoundError:

return 1

for dep in deps:

dep_time = Path(dep).stat().st_mtime

if dep_time > target_time:

# print("For target",target,"Dep failed:",dep) # dbg

# print("times (dep,tar):",dep_time,target_time) # dbg

return 1

return 0

def target_update(target, deps, cmd):

"""Update a target with a given command given a list of dependencies.

target_update(target,deps,cmd) -> runs cmd if target is outdated.

This is just a wrapper around target_outdated() which calls the given

command if target is outdated."""

if target_outdated(target, deps):

os.system(cmd)

#---------------------------------------------------------------------------

# VCS related

#---------------------------------------------------------------------------

def git_prebuild(pkg_dir, build_cmd=build_py):

"""Return extended build or sdist command class for recording commit

records git commit in IPython.utils._sysinfo.commit

for use in IPython.utils.sysinfo.sys_info() calls after installation.

"""

class MyBuildPy(build_cmd):

''' Subclass to write commit data into installation tree '''

def run(self):

# loose as `.dev` is suppose to be invalid

print("check version number")

loose_pep440re = re.compile(r'^(\d+)\.(\d+)\.(\d+((a|b|rc)\d+)?)(\.post\d+)?(\.dev\d*)?$')

if not loose_pep440re.match(version):

raise ValueError("Version number '%s' is not valid (should match [N!]N(.N)*[{a|b|rc}N][.postN][.devN])" % version)

build_cmd.run(self)

# this one will only fire for build commands

if hasattr(self, 'build_lib'):

self._record_commit(self.build_lib)

def make_release_tree(self, base_dir, files):

# this one will fire for sdist

build_cmd.make_release_tree(self, base_dir, files)

self._record_commit(base_dir)

def _record_commit(self, base_dir):

import subprocess

proc = subprocess.Popen('git rev-parse --short HEAD',

stdout=subprocess.PIPE,

stderr=subprocess.PIPE,

shell=True)

repo_commit, _ = proc.communicate()

repo_commit = repo_commit.strip().decode("ascii")

out_pth = Path(base_dir) / pkg_dir / "utils" / "_sysinfo.py"

if out_pth.is_file() and not repo_commit:

# nothing to write, don't clobber

return

print(f"writing git commit '{repo_commit}' to {out_pth}")

# remove to avoid overwriting original via hard link

try:

out_pth.unlink()

except FileNotFoundError:

pass

with out_pth.open("w", encoding="utf-8") as out_file:

out_file.writelines(

[

"# GENERATED BY setup.py\n",

f'commit = "{repo_commit}"\n',

]

)

return MyBuildPy

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