Source code for pymyinstall.installcustom.install_custom_7z
"""
Various functions to install some applications such as `7z <http://www.7-zip.org/>`_.
:githublink:`%|py|5`
"""
from __future__ import print_function
import sys
import re
import os
from ..installhelper.install_cmd_helper import run_cmd
from .install_custom import download_page, download_file
[docs]def install_7z(
temp_folder=".", fLOG=print, install=True, force_download=False, version=None):
"""
Install `7z <http://www.7-zip.org/>`_.
It does not do it a second time if it is already installed.
:param temp_folder: where to download the setup
:param fLOG: logging function
:param install: install (otherwise only download)
:param force_download: force the downloading of 7z
:param version: specify a version (unused)
:return: temporary file
:githublink:`%|py|26`
"""
if version is not None:
raise ValueError("cannot specify a version")
link = "http://www.7-zip.org/download.html"
page = download_page(link)
if sys.platform.startswith("win"):
reg = re.compile("href=\\\"(.*?x64[.]msi)\\\"")
alls = reg.findall(page)
if len(alls) == 0:
raise Exception(
"unable to find a link on a .msi file on page: " + link + "\n" +
page)
url = "/".join(link.split("/")[:-1]) + "/" + alls[0]
full = url.split("/")[-1]
outfile = os.path.join(temp_folder, full)
local = download_file(url, outfile, fLOG=fLOG)
if install:
run_cmd("msiexec /i " + local, fLOG=fLOG, wait=True)
return local
else:
raise NotImplementedError("not available on platform " + sys.platform)