initial checkin of mdbp

Proof-of-concept status. Some things work.

1 files changed, 63 insertions, 0 deletions

diff --git a/mdbp/pbuilder.py b/mdbp/pbuilder.py
new file mode 100644
index 0000000..51111e3
--- /dev/null
+++ b/mdbp/pbuilder.py
@@ -0,0 +1,63 @@
+#!/usr/bin/python3
+# SPDX-License-Identifier: MIT
+"""mdbp backend using pbuilder"""
+
+import argparse
+import os
+import pathlib
+import subprocess
+
+from .common import buildjson, compute_env, get_dsc, make_option, \
+        profile_option
+
+def main() -> None:
+    """Entry point for mdbp-pbuilder backend"""
+    parser = argparse.ArgumentParser()
+    parser.add_argument("buildjson", type=buildjson)
+    args = parser.parse_args()
+    build = args.buildjson
+
+    if build.get("lintian", {}).get("run"):
+        raise ValueError("running lintian not supported")
+    if build.get("bd-uinstallable-explainer"):
+        raise ValueError("bd-uninstallable-explainer %r not supported" %
+                         build.get("bd-uinstallable-explainer"))
+    if build.get("buildpath"):
+        raise ValueError("buildpath not supported")
+    if build["distribution"] in ("sid", "unstable"):
+        basetgz = None
+    else:
+        for pat in ("/var/cache/pbuilder/%s-base.tgz",
+                    "/var/cache/pbuidler/%s.tgz"):
+            basetgz = pat % build["distribution"]
+            if pathlib.Path(basetgz).is_file():
+                break
+        else:
+            raise ValueError("unsupported distribution %s" %
+                             build["distribution"])
+
+    cmd = []
+    if os.getuid() != 0:
+        cmd.extend(["sudo", "-E", "--"])
+    cmd.extend(["/usr/sbin/pbuilder", "build"])
+    cmd.extend(make_option("--basetgz", basetgz))
+    cmd.extend(make_option("--architecture", build.get("buildarch")))
+    cmd.extend(make_option("--host-arch", build.get("hostarch")))
+    cmd.extend(make_option("--othermirror",
+                           "|".join(build.get("extrarepositories", ()))))
+    cmd.extend(make_option("--use-network",
+        {"enable": "yes", "try-enable": "yes", "disable": "no",
+         "try-disable": "no"}.get(build.get("network"))))
+    cmd.extend(dict(any=["--binary-arch"],
+                    all=["--binary-indep"],
+                    binary=["--debbuildopts", "-b"])[
+                        build.get("type", "binary")])
+    cmd.extend(profile_option(build, "--profiles"))
+    cmd.extend(["--buildresult", build["output"]["directory"]])
+    with get_dsc(build) as dscpath:
+        cmd.append(str(dscpath))
+        proc = subprocess.Popen(cmd, env=compute_env(build))
+        proc.wait()
+
+if __name__ == "__main__":
+    main()