enable building a source package by name and version

If a package is specified by name, it is downloaded inside the chroot
using the embedded deb-src uris. sbuild implements this natively,
pbuilder does not implement this yet, but there is #988419 and
mmdebstrap can make it work.

1 files changed, 11 insertions, 3 deletions

diff --git a/mdbp/sbuild.py b/mdbp/sbuild.py
index ef6b67d..defd0bc 100644
--- a/mdbp/sbuild.py
+++ b/mdbp/sbuild.py
@@ -75,11 +75,19 @@ def main() -> None:
         sbc["external_commands"]["finished-build-commands"] = \
                 ["mv /etc/resolv.conf.disabled /etc/resolv.conf"]
 
-    with tempfile.NamedTemporaryFile(mode="w") as sbuildconf, \
-         get_dsc(build) as dscpath:
+    with contextlib.ExitStack() as stack:
+        sbuildconf = stack.enter_context(tempfile.NamedTemporaryFile(mode="w"))
         sbuildconf.write(perl_conf(sbc))
         sbuildconf.flush()
-        proc = subprocess.Popen(["sbuild", str(dscpath.absolute())],
+
+        try:
+            thing = build["input"]["sourcename"]
+            with contextlib.suppress(KeyError):
+                thing += "_" + build["input"]["version"]
+        except KeyError:
+            thing = str(stack.enter_context(get_dsc(build)).absolute())
+
+        proc = subprocess.Popen(["sbuild", thing],
                                 env=dict(SBUILD_CONFIG=sbuildconf.name,
                                          PATH="/usr/bin:/bin"),
                                 cwd=build["output"]["directory"],