obs: build_binpkg: add --run-shell-on-error arg

Allow easy inspection of the build dir inside docker on error.

Related: OS#5737
Change-Id: I218c3189d36d24c64cbd7b9eab379aff8ce2bee2

scripts/obs/build_binpkg.py

@@ -29,6 +29,8 @@ def main():
                              f" distro (default: {distro_default})")
     parser.add_argument("-j", "--jobs", type=int, default=jobs_default,
                         help=f"parallel running jobs (default: {jobs_default})")
+    parser.add_argument("-r", "--run-shell-on-error", action="store_true",
+                        help="run an interactive shell if the build fails")
     parser.add_argument("-v", "--verbose", action="store_true",
                         help="always print shell commands and their output,"
                              " instead of only printing them on error")
@@ -52,11 +54,18 @@ def main():
 
     env = {"JOBS": str(args.jobs),
            "PACKAGE": args.package,
-           "BUILDUSER": os.environ["USER"]}
+           "BUILDUSER": os.environ["USER"],
+           "PACKAGEFORMAT": "deb"}
+
+    docker_args = []
+    if args.run_shell_on_error:
+        env["RUN_SHELL_ON_ERROR"] = "1"
+        docker_args += ["-i", "-t"]
+
+    script_path = "data/build.sh"
 
-    script_path = "data/build_deb.sh"
     if not distro.startswith("debian:"):
-        script_path = "data/build_rpm.sh"
+        env["PACKAGEFORMAT"] = "rpm"
 
     if args.docker:
         image_type = "build_binpkg"
@@ -71,7 +80,8 @@ def main():
         lib.docker.run_in_docker_and_exit(script_path,
                                           image_type=image_type,
                                           distro=distro,
-                                          pass_argv=False, env=env)
+                                          pass_argv=False, env=env,
+                                          docker_args=docker_args)
     else:
         lib.run_cmd(["sudo", "-E", script_path], env=env,
                     cwd=lib.config.path_top)

scripts/obs/data/build.sh

@@ -0,0 +1,15 @@
+#!/bin/sh -e
+
+if ! data/build_"$PACKAGEFORMAT".sh; then
+	echo
+	echo "ERROR: build failed!"
+	echo
+	if [ -n "$RUN_SHELL_ON_ERROR" ]; then
+		bash
+	fi
+	exit 1
+fi
+
+echo
+echo "Build successful!"
+echo

scripts/obs/lib/docker.py

@@ -51,7 +51,7 @@ def get_oscrc():
 
 def run_in_docker_and_exit(script_path, add_oscrc=False,
                            image_type="build_srcpkg", distro=None,
-                           pass_argv=True, env={}):
+                           pass_argv=True, env={}, docker_args=[]):
     """
     :param script_path: what to run inside docker, relative to scripts/obs/
     :param add_oscrc: put user's oscrc in docker (contains obs credentials!)
@@ -59,6 +59,7 @@ def run_in_docker_and_exit(script_path, add_oscrc=False,
     :param distro: which Linux distribution to use, e.g. "debian:11"
     :param pass_argv: pass arguments from sys.argv to the script
     :param env: dict of environment variables
+    :param docker_args: extra arguments to pass to docker
     """
     if "INSIDE_DOCKER" in os.environ:
         return
@@ -92,13 +93,13 @@ def run_in_docker_and_exit(script_path, add_oscrc=False,
            "-e", "PYTHONUNBUFFERED=1",
            "-v", f"{lib.config.path_top}:/obs"]
 
-
     for env_key, env_val in env.items():
         cmd += ["-e", f"{env_key}={env_val}"]
 
     if oscrc:
         cmd += ["-v", f"{oscrc}:/home/user/.oscrc"]
 
+    cmd += docker_args
     cmd += [image_name, f"/obs/{script_path}"]
 
     if pass_argv: