rust2rpm/rust2rpm.py
Igor Gnatenko 619f221cc0 save cache into $XDG_CACHE_HOME/rust2rpm
Signed-off-by: Igor Gnatenko <ignatenkobrain@fedoraproject.org>
2017-02-05 13:58:20 +01:00

142 lines
3.9 KiB
Python

import argparse
import os
import tarfile
import tempfile
import subprocess
import sys
import jinja2
import requests
import cargodeps
XDG_CACHE_HOME = os.getenv("XDG_CACHE_HOME", os.path.expanduser("~/.cache"))
CACHEDIR = os.path.join(XDG_CACHE_HOME, "rust2rpm")
API_URL = "https://crates.io/api/v1/"
TEMPLATE = """# Generated by rust2rpm
%bcond_without check
%global crate {{ md.name }}
Name: rust-%{crate}
Version: {{ md.version }}
Release: 1%{?dist}
Summary: # FIXME
License: {{ md.license|default("# FIXME") }}
URL: https://crates.io/crates/{{ md.name }}
Source0: https://crates.io/api/v1/crates/%{crate}/%{version}/download#/%{crate}-%{version}.crate
ExclusiveArch: %{rust_arches}
BuildRequires: rust
BuildRequires: cargo
{% for req in md.build_requires %}
BuildRequires: {{ req }}
{% endfor %}
{% for con in md.build_conflicts %}
BuildConflicts: {{ con }}
{% endfor %}
{% if md.test_requires|length > 0 %}
%if %{with check}
{% for req in md.test_requires %}
BuildRequires: {{ req }}
{% endfor %}
{% for con in md.test_conflicts %}
BuildConflicts: {{ con }}
{% endfor %}
%endif
{% endif %}
%description
%{summary}.
%package devel
Summary: %{summary}
BuildArch: noarch
{% if target == "epel-7" %}
{% for prv in md.provides %}
Provides: {{ prv }}
{% endfor %}
{% for req in md.requires %}
Requires: {{ req }}
{% endfor %}
{% for con in md.conflicts %}
Conflicts: {{ con }}
{% endfor %}
{% endif %}
%description devel
%{summary}.
%prep
%autosetup -n %{crate}-%{version}
%cargo_prep
%install
%cargo_install_crate %{crate}-%{version}
%if %{with check}
%check
%cargo_test
%endif
%files devel
{% if md.license_file is not none %}
%license {{ md.license_file }}
{% endif %}
%{cargo_registry}/%{crate}-%{version}/
%changelog
"""
JINJA_ENV = jinja2.Environment(undefined=jinja2.StrictUndefined,
trim_blocks=True, lstrip_blocks=True)
def run_depgen(*params):
cmd = [sys.executable, cargodeps.__file__, *params]
out = subprocess.check_output(cmd, universal_newlines=True)
return out.split("\n")[:-1]
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument("-t", "--target", choices=("epel-7", "fedora-26"), required=True,
help="Distribution target")
parser.add_argument("crate", help="crates.io name")
parser.add_argument("version", nargs="?", help="crates.io version")
args = parser.parse_args()
if args.version is None:
# Now we need to get latest version
url = requests.compat.urljoin(API_URL, "crates/{}/versions".format(args.crate))
req = requests.get(url)
req.raise_for_status()
args.version = req.json()["versions"][0]["num"]
if not os.path.isdir(CACHEDIR):
os.mkdir(CACHEDIR)
cratef = os.path.join(CACHEDIR, "{}-{}.crate".format(args.crate, args.version))
if not os.path.isfile(cratef):
url = requests.compat.urljoin(API_URL, "crates/{}/{}/download#".format(args.crate, args.version))
req = requests.get(url, stream=True)
req.raise_for_status()
with open(cratef, "wb") as f:
# FIXME: should we use req.iter_content() and specify custom chunk size?
for chunk in req:
f.write(chunk)
files = []
with tempfile.TemporaryDirectory() as tmpdir:
target_dir = "{}/".format(tmpdir)
with tarfile.open(cratef, "r") as archive:
for n in archive.getnames():
if not os.path.abspath(os.path.join(target_dir, n)).startswith(target_dir):
raise Exception("Unsafe filenames!")
archive.extractall(target_dir)
toml = "{}/{}-{}/Cargo.toml".format(tmpdir, args.crate, args.version)
assert os.path.isfile(toml)
metadata = cargodeps.Metadata.from_file(toml)
template = JINJA_ENV.from_string(TEMPLATE)
print(template.render(target=args.target, md=metadata))