137 lines
4 KiB
Python
137 lines
4 KiB
Python
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import argparse
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import itertools
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import os
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import tarfile
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import tempfile
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import subprocess
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import sys
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import jinja2
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import requests
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import cargodeps
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API_URL = "https://crates.io/api/v1/"
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TEMPLATE = """# Generated by rust2rpm
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%global crate {{ name }}
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Name: rust-%{crate}
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Version: {{ version }}
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Release: 1%{?dist}
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Summary: # FIXME
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License: # FIXME
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URL: https://crates.io/crates/{{ name }}
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Source0: https://crates.io/api/v1/crates/%{crate}/%{version}/download#/%{crate}-%{version}.crate
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ExclusiveArch: %{rust_arches}
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BuildRequires: rust
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BuildRequires: cargo
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{% for br, bc in zip(buildrequires, buildconflicts) %}
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BuildRequires: {{ br }}
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{% if bc is not none %}
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BuildConflicts: {{ bc }}
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{% endif %}
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{% endfor %}
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%description
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%{summary}.
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%package devel
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Summary: %{summary}
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BuildArch: noarch
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{% for prov in provides %}
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Provides: {{ prov }}
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{% endfor %}
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{% for req, con in zip(requires, conflicts) %}
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Requires: {{ req }}
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{% if con is not none %}
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Conflicts: {{ con }}
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{% endif %}
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{% endfor %}
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%description devel
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%{summary}.
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%prep
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%autosetup -n %{crate}-%{version}
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%cargo_prep
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%install
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%cargo_install_crate %{crate}-%{version}
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%check
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%cargo_test
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%files devel
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%license # FIXME
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%{cargo_registry}/%{crate}-%{version}/
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%changelog
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"""
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JINJA_ENV = jinja2.Environment(undefined=jinja2.StrictUndefined,
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trim_blocks=True, lstrip_blocks=True)
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JINJA_ENV.globals.update(zip=itertools.zip_longest)
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def run_depgen(*params):
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cmd = [sys.executable, cargodeps.__file__, *params]
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out = subprocess.check_output(cmd, universal_newlines=True)
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return out.split("\n")[:-1]
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if __name__ == "__main__":
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parser = argparse.ArgumentParser()
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parser.add_argument("-t", "--target", choices=("epel-7", "fedora-26"), required=True,
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help="Distribution target")
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parser.add_argument("crate", help="crates.io name")
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parser.add_argument("version", nargs="?", help="crates.io version")
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args = parser.parse_args()
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if args.version is None:
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# Now we need to get latest version
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url = requests.compat.urljoin(API_URL, "crates/{}/versions".format(args.crate))
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req = requests.get(url)
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req.raise_for_status()
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args.version = req.json()["versions"][0]["num"]
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cratef = "{}-{}.crate".format(args.crate, args.version)
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if not os.path.isfile(cratef):
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url = requests.compat.urljoin(API_URL, "crates/{}/{}/download#".format(args.crate, args.version))
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req = requests.get(url, stream=True)
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req.raise_for_status()
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with open(cratef, "wb") as f:
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# FIXME: should we use req.iter_content() and specify custom chunk size?
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for chunk in req:
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f.write(chunk)
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files = []
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with tempfile.TemporaryDirectory() as tmpdir:
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target_dir = "{}/".format(tmpdir)
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with tarfile.open(cratef, "r") as archive:
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for n in archive.getnames():
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if not os.path.abspath(os.path.join(target_dir, n)).startswith(target_dir):
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raise Exception("Unsafe filenames!")
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archive.extractall(target_dir)
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toml = "{}/{}-{}/Cargo.toml".format(tmpdir, args.crate, args.version)
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assert os.path.isfile(toml)
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# TODO: implement following
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buildrequires = []
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buildconflicts = []
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if args.target == "fedora-26":
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# Those are automatically added by dependency generator
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provides = []
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requires = []
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conflicts = []
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else:
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provides = run_depgen("--provides", toml)
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requires = run_depgen("--requires", toml)
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conflicts = run_depgen("--conflicts", toml)
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template = JINJA_ENV.from_string(TEMPLATE)
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print(template.render(name=args.crate, version=args.version,
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provides=provides,
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buildrequires=buildrequires, buildconflicts=buildconflicts,
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requires=requires, conflicts=conflicts))
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