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1 | #!/usr/bin/env python3 |
2 | # | |
3 | # SPDX-FileCopyrightText: 2024 Kienan Stewart <kstewart@efficios.com> | |
4 | # SPDX-License-Identifier: GPL-2.0-only | |
5 | # | |
6 | ||
7 | import argparse | |
8 | import logging | |
9 | import os | |
10 | import pathlib | |
11 | import platform | |
12 | import re | |
13 | import shlex | |
14 | import subprocess | |
15 | import sys | |
16 | import tempfile | |
17 | import urllib | |
18 | ||
19 | ||
20 | _ENV_VARS = [ | |
21 | "BABELTRACE_PLUGIN_PATH", | |
22 | "CPPFLAGS", | |
23 | "LD_LIBRARY_PATH", | |
24 | "LDFLAGS", | |
25 | "PATH", | |
26 | "PKG_CONFIG_PATH", | |
27 | "PYTHONPATH", | |
28 | "WORKSPACE", | |
29 | ] | |
30 | ||
31 | ||
32 | def _get_argparser(): | |
33 | parser = argparse.ArgumentParser( | |
34 | description="Fetch and create a stub environment from common job artifacts", | |
35 | ) | |
36 | # Commands: fetch (implies activate), activate, deactivate | |
19562378 | 37 | subparsers = parser.add_subparsers(dest="command") |
1e65ccd9 KS |
38 | parser.add_argument( |
39 | "-v", "--verbose", action="count", help="Increase the verbosity" | |
40 | ) | |
41 | ||
42 | fetch_parser = subparsers.add_parser("fetch") | |
43 | fetch_parser.add_argument( | |
44 | "directory", | |
45 | help="The directory", | |
46 | type=pathlib.Path, | |
47 | ) | |
48 | fetch_parser.add_argument( | |
49 | "-s", | |
50 | "--server", | |
51 | default="https://ci.lttng.org", | |
52 | help="The jenkins server to use", | |
53 | ) | |
54 | fetch_parser.add_argument( | |
55 | "-j", | |
56 | "--job", | |
57 | help="The job name, eg. 'lttng-tools_master_root_slesbuild'", | |
58 | default=None, | |
59 | required=True, | |
60 | ) | |
61 | fetch_parser.add_argument( | |
62 | "-jc", | |
63 | "--job-configuration", | |
64 | help="An optional job configuration, eg. 'babeltrace_version=stable-2.0,build=std,conf=agents,liburcu_version=master,node=sles15sp4-amd64-rootnode,platform=sles15sp4-amd64'", | |
65 | default=None, | |
66 | ) | |
67 | fetch_parser.add_argument( | |
68 | "-b", "--build-id", help="The build ID, eg. '28'", default=None, required=True | |
69 | ) | |
70 | fetch_parser.add_argument( | |
71 | "-n", | |
72 | "--no-download", | |
73 | help="Do not activate environment after fetching artifacts", | |
74 | action="store_false", | |
75 | dest="download", | |
76 | default=True, | |
77 | ) | |
78 | ||
79 | return parser | |
80 | ||
81 | ||
82 | def fetch(destination, server, job, build, job_configuration=None, download=True): | |
83 | if destination.exists() and not destination.is_dir(): | |
84 | raise Exception("'{}' exists but is not a directory".format(str(destination))) | |
85 | if not destination.exists(): | |
86 | destination.mkdir() | |
87 | ||
88 | if download: | |
89 | components = [ | |
90 | "job", | |
91 | job, | |
92 | job_configuration or "", | |
93 | build, | |
94 | "artifact", | |
95 | "*zip*", | |
96 | "archive.zip", | |
97 | ] | |
98 | url_components = [urllib.parse.quote_plus(x) for x in components] | |
99 | url = "/".join([server] + url_components) | |
100 | logging.info("Fetching archive from '{}'".format(url)) | |
101 | ||
102 | with tempfile.NamedTemporaryFile() as archive: | |
103 | subprocess.run(["wget", url, "-O", archive.name]) | |
104 | subprocess.run(["unzip", "-d", str(destination), archive.name]) | |
105 | ||
106 | # The artifact archive doesn't include symlinks, so the the symlinks for | |
107 | # the ".so" in libdir_arch must be rebuilt | |
108 | lib_dir = "lib" | |
109 | lib_dir_arch = lib_dir | |
110 | if ( | |
111 | pathlib.Path("/etc/products.d/SLES.prod").exists() | |
112 | or pathlib.Path("/etc/redhat-release").exists() | |
113 | or pathlib.Path("/etc/yocto-release").exists() | |
19562378 | 114 | ) and "64bit" in platform.architecture(): |
1e65ccd9 KS |
115 | lib_dir_arch = "{}64" |
116 | ||
117 | so_re = re.compile("^.*\.so\.\d+\.\d+\.\d+$") | |
118 | for root, dirs, files in os.walk( | |
119 | str(destination / "deps" / "build" / lib_dir_arch) | |
120 | ): | |
121 | for f in files: | |
122 | if so_re.match(f): | |
123 | bits = f.split(".") | |
124 | alts = [ | |
125 | ".".join(bits[:-1]), | |
126 | ".".join(bits[:-2]), | |
127 | ".".join(bits[:-3]), | |
128 | ] | |
129 | for a in alts: | |
130 | os.symlink(f, os.path.join(root, a)) | |
131 | ||
132 | env = create_activate(destination) | |
133 | create_deactivate(destination, env) | |
134 | ||
135 | ||
136 | def create_activate(destination): | |
137 | lib_dir = "lib" | |
138 | lib_dir_arch = lib_dir | |
139 | if ( | |
140 | pathlib.Path("/etc/products.d/SLES.prod").exists() | |
141 | or pathlib.Path("/etc/redhat-release").exists() | |
142 | or pathlib.Path("/etc/yocto-release").exists() | |
19562378 | 143 | ) and "64bit" in platform.architecture(): |
1e65ccd9 KS |
144 | lib_dir_arch = "{}64" |
145 | ||
146 | env = {} | |
147 | env["_JENKINS_ENV"] = destination.name | |
148 | for var in _ENV_VARS: | |
149 | original = os.getenv(var) | |
150 | env["_JENKINS_{}".format(var)] = original if original else "" | |
151 | if var == "BABELTRACE_PLUGIN_PATH": | |
152 | env["BABELTRACE_PLUGIN_PATH"] = "{}{}".format( | |
153 | "{}:".format(original) if original else "", | |
154 | str( | |
155 | ( | |
156 | destination | |
157 | / "archive" | |
158 | / "deps" | |
159 | / "build" | |
160 | / lib_dir_arch | |
161 | / "babeltrace2" | |
162 | / "plugins" | |
163 | ).absolute() | |
164 | ), | |
165 | ) | |
166 | elif var == "CPPFLAGS": | |
167 | env["CPPFLAGS"] = "{}-I{}".format( | |
168 | "{} ".format(original) if original else "", | |
169 | str( | |
170 | (destination / "archive" / "deps" / "build" / "include").absolute() | |
171 | ), | |
172 | ) | |
173 | elif var == "LD_LIBRARY_PATH": | |
174 | env["LD_LIBRARY_PATH"] = "{}{}".format( | |
175 | "{}:".format(original) if original else "", | |
176 | str( | |
177 | ( | |
178 | destination / "archive" / "deps" / "build" / lib_dir_arch | |
179 | ).absolute() | |
180 | ), | |
181 | ) | |
182 | elif var == "LDFLAGS": | |
183 | env["LDFLAGS"] = "{}-L{}".format( | |
184 | "{} ".format(original) if original else "", | |
185 | str( | |
186 | ( | |
187 | destination / "archive" / "deps" / "build" / lib_dir_arch | |
188 | ).absolute() | |
189 | ), | |
190 | ) | |
191 | elif var == "PATH": | |
192 | env["PATH"] = "{}:{}".format( | |
193 | original, | |
194 | str((destination / "archive" / "deps" / "build" / "bin").absolute()), | |
195 | ) | |
196 | elif var == "PKG_CONFIG_PATH": | |
197 | env["PKG_CONFIG_PATH"] = "{}{}".format( | |
198 | "{}:" if original else "", | |
199 | str( | |
200 | ( | |
201 | destination | |
202 | / "archive" | |
203 | / "deps" | |
204 | / "build" | |
205 | / lib_dir_arch | |
206 | / "pkgconfig" | |
207 | ).absolute() | |
208 | ), | |
209 | ) | |
210 | elif var == "PYTHONPATH": | |
211 | pass | |
212 | elif var == "WORKSPACE": | |
213 | env["WORKSPACE"] = str((destination / "archive").absolute()) | |
214 | else: | |
215 | raise Exception("Unsupported environment variable '{}'".format(var)) | |
216 | ||
217 | args = ["{}={}".format(k, shlex.quote(v)) for k, v in env.items()] | |
218 | with open(str(destination / "activate"), "w") as fp: | |
219 | fp.writelines("#!/usr/bin/bash\n") | |
220 | for arg in args: | |
221 | fp.writelines("export {}\n".format(arg)) | |
222 | (destination / "activate").chmod(0o755) | |
223 | return env | |
224 | ||
225 | ||
226 | def create_deactivate(destination, env): | |
227 | with open(str(destination / "deactivate"), "w") as fp: | |
228 | fp.writelines("#!/usr/bin/bash\n") | |
229 | for k, v in env.items(): | |
230 | if k.startswith("_JENKINS_"): | |
231 | fp.writelines("unset {}\n".format(k)) | |
232 | else: | |
233 | original = env["_JENKINS_{}".format(k)] | |
234 | fp.writelines("export {}={}\n".format(k, original)) | |
235 | (destination / "deactivate").chmod(0o755) | |
236 | ||
237 | ||
238 | if __name__ == "__main__": | |
239 | logger = logging.getLogger() | |
240 | parser = _get_argparser() | |
241 | args = parser.parse_args() | |
242 | logger.setLevel(max(1, 30 - (args.verbose or 0) * 10)) | |
243 | logging.debug("Initialized with log level: {}".format(logger.getEffectiveLevel())) | |
244 | ||
245 | if args.command == "fetch": | |
246 | fetch( | |
247 | destination=args.directory, | |
248 | server=args.server, | |
249 | job=args.job, | |
250 | build=args.build_id, | |
251 | job_configuration=args.job_configuration, | |
252 | download=args.download, | |
253 | ) | |
254 | else: | |
255 | raise Exception("Command '{}' unsupported".format(args.command)) | |
256 | sys.exit(0) |