scripts: nudge users to use 'run' script for scripts that import qemu.qmp

Now that qmp has to be installed and isn't local, we can no longer offer
a simple forwarder for these scripts (nor path hacks) and hope that it
works. Encourage users to use the 'run' script to use these scripts
instead.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20260218213416.674483-18-jsnow@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>

scripts/compare-machine-types.py

@@ -27,19 +27,16 @@
 # along with this program; if not, see <http://www.gnu.org/licenses/>.
 
 import sys
-from os import path
 from argparse import ArgumentParser, RawTextHelpFormatter, Namespace
 import pandas as pd
 from contextlib import ExitStack
 from typing import Optional, List, Dict, Generator, Tuple, Union, Any, Set
 
 try:
-    qemu_dir = path.abspath(path.dirname(path.dirname(__file__)))
-    sys.path.append(path.join(qemu_dir, 'python'))
     from qemu.machine import QEMUMachine
 except ModuleNotFoundError as exc:
-    print(f"Module '{exc.name}' not found.")
-    print("Try export PYTHONPATH=top-qemu-dir/python or run from top-qemu-dir")
+    print(f"Module '{exc.name}' not found.", file=sys.stderr)
+    print(f"Try $builddir/run {' '.join(sys.argv)}", file=sys.stderr)
     sys.exit(1)
 
 

scripts/qmp/qemu-ga-client

@@ -1,11 +1,10 @@
 #!/usr/bin/env python3
 
-import os
 import sys
 
-sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'python'))
-from qemu.utils import qemu_ga_client
-
-
-if __name__ == '__main__':
-    sys.exit(qemu_ga_client.main())
+print(
+    "This script has moved; after running configure,"
+    " please use '$builddir/run qemu-ga-client [...]' instead.",
+    file=sys.stderr
+)
+sys.exit(1)

scripts/qmp/qmp-shell

@@ -1,11 +1,10 @@
 #!/usr/bin/env python3
 
-import os
 import sys
 
-sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'python'))
-from qemu.qmp import qmp_shell
-
-
-if __name__ == '__main__':
-    qmp_shell.main()
+print(
+    "This script has moved; after running configure,"
+    " please use '$builddir/run qmp-shell [...]' instead.",
+    file=sys.stderr
+)
+sys.exit(1)

scripts/qmp/qmp-shell-wrap

@@ -1,11 +1,10 @@
 #!/usr/bin/env python3
 
-import os
 import sys
 
-sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'python'))
-from qemu.qmp import qmp_shell
-
-
-if __name__ == '__main__':
-    qmp_shell.main_wrap()
+print(
+    "This script has moved; after running configure,"
+    " please use '$builddir/run qmp-shell-wrap [...]' instead.",
+    file=sys.stderr
+)
+sys.exit(1)

scripts/qmp/qom-fuse

@@ -1,11 +1,10 @@
 #!/usr/bin/env python3
 
-import os
 import sys
 
-sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'python'))
-from qemu.utils.qom_fuse import QOMFuse
-
-
-if __name__ == '__main__':
-    sys.exit(QOMFuse.entry_point())
+print(
+    "This script has moved; after running configure,"
+    " please use '$builddir/run qom-fuse [...]' instead.",
+    file=sys.stderr
+)
+sys.exit(1)

scripts/qmp/qom-get

@@ -1,11 +1,10 @@
 #!/usr/bin/env python3
 
-import os
 import sys
 
-sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'python'))
-from qemu.utils.qom import QOMGet
-
-
-if __name__ == '__main__':
-    sys.exit(QOMGet.entry_point())
+print(
+    "This script has moved; after running configure,"
+    " please use '$builddir/run qom-get [...]' instead.",
+    file=sys.stderr
+)
+sys.exit(1)

scripts/qmp/qom-list

@@ -1,11 +1,10 @@
 #!/usr/bin/env python3
 
-import os
 import sys
 
-sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'python'))
-from qemu.utils.qom import QOMList
-
-
-if __name__ == '__main__':
-    sys.exit(QOMList.entry_point())
+print(
+    "This script has moved; after running configure,"
+    " please use '$builddir/run qom-list [...]' instead.",
+    file=sys.stderr
+)
+sys.exit(1)

scripts/qmp/qom-set

@@ -1,11 +1,10 @@
 #!/usr/bin/env python3
 
-import os
 import sys
 
-sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'python'))
-from qemu.utils.qom import QOMSet
-
-
-if __name__ == '__main__':
-    sys.exit(QOMSet.entry_point())
+print(
+    "This script has moved; after running configure,"
+    " please use '$builddir/run qom-set [...]' instead.",
+    file=sys.stderr
+)
+sys.exit(1)

scripts/qmp/qom-tree

@@ -1,11 +1,10 @@
 #!/usr/bin/env python3
 
-import os
 import sys
 
-sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'python'))
-from qemu.utils.qom import QOMTree
-
-
-if __name__ == '__main__':
-    sys.exit(QOMTree.entry_point())
+print(
+    "This script has moved; after running configure,"
+    " please use '$builddir/run qom-tree [...]' instead.",
+    file=sys.stderr
+)
+sys.exit(1)

scripts/qmp_helper.py

@@ -13,17 +13,12 @@ import json
 import sys
 
 from datetime import datetime
-from os import path as os_path
 
 try:
-    qemu_dir = os_path.abspath(os_path.dirname(os_path.dirname(__file__)))
-    sys.path.append(os_path.join(qemu_dir, 'python'))
-
     from qemu.qmp.legacy import QEMUMonitorProtocol
-
 except ModuleNotFoundError as exc:
-    print(f"Module '{exc.name}' not found.")
-    print("Try export PYTHONPATH=top-qemu-dir/python or run from top-qemu-dir")
+    print(f"Module '{exc.name}' not found.", file=sys.stderr)
+    print(f"Try $builddir/run {' '.join(sys.argv)}", file=sys.stderr)
     sys.exit(1)
 
 from base64 import b64encode

scripts/render_block_graph.py

@@ -24,9 +24,13 @@ import subprocess
 import json
 from graphviz import Digraph
 
-sys.path.append(os.path.join(os.path.dirname(__file__), '..', 'python'))
-from qemu.qmp import QMPError
-from qemu.qmp.legacy import QEMUMonitorProtocol
+try:
+    from qemu.qmp import QMPError
+    from qemu.qmp.legacy import QEMUMonitorProtocol
+except ModuleNotFoundError as exc:
+    print(f"Module '{exc.name}' not found.", file=sys.stderr)
+    print(f"Try $builddir/run {' '.join(sys.argv)}", file=sys.stderr)
+    sys.exit(1)
 
 
 def perm(arr):

scripts/simplebench/bench_block_job.py

@@ -25,9 +25,13 @@ import subprocess
 import socket
 import json
 
-sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'python'))
-from qemu.machine import QEMUMachine
-from qemu.qmp import ConnectError
+try:
+    from qemu.machine import QEMUMachine
+    from qemu.qmp import ConnectError
+except ModuleNotFoundError as exc:
+    print(f"Module '{exc.name}' not found.", file=sys.stderr)
+    print(f"Try $builddir/run {' '.join(sys.argv)}", file=sys.stderr)
+    sys.exit(1)
 
 
 def bench_block_job(cmd, cmd_args, qemu_args):

tests/migration-stress/guestperf/engine.py

@@ -27,9 +27,18 @@ from guestperf.progress import Progress, ProgressStats
 from guestperf.report import Report, ReportResult
 from guestperf.timings import TimingRecord, Timings
 
-sys.path.append(os.path.join(os.path.dirname(__file__),
-                             '..', '..', '..', 'python'))
-from qemu.machine import QEMUMachine
+try:
+    from qemu.machine import QEMUMachine
+except ModuleNotFoundError as exc:
+    print(
+        f"Module '{exc.name}' not found.\n"
+        "It should be installed as part of the configure-time "
+        "virtual environment in $builddir/pyvenv.\n"
+        "Try re-running this script as:\n"
+        f"> $builddir/run {' '.join(sys.argv)}",
+        file=sys.stderr
+    )
+    sys.exit(1)
 
 # multifd supported compression algorithms
 MULTIFD_CMP_ALGS = ("zlib", "zstd", "qpl", "uadk")