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scripts/runqemu: raise an error when bitbake was not found

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Running 'scrupts/runqemu' without bitbake in PATH causes the
following error:

```
Traceback (most recent call last):
  File "/home/rg/temp_stuff/oe_2/./scripts/runqemu", line 1807, in main
    config.check_args()
    ~~~~~~~~~~~~~~~~~^^
  File "/home/rg/temp_stuff/oe_2/./scripts/runqemu", line 624, in check_args
    s = re.search('^DEPLOY_DIR_IMAGE="(.*)"', self.bitbake_e, re.M)
  File "/usr/lib/python3.13/re/__init__.py", line 177, in search
    return _compile(pattern, flags).search(string)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^
TypeError: expected string or bytes-like object, got 'NoneType'
```

This patch adds a more helpful error message to inform the user that
bitbake was not found, e.g. because oe-init-build-env was not sourced.

This is an example of the new error message after the patch:

```
runqemu - ERROR - In order for this script to dynamically infer paths
 kernels or filesystem images, you either need bitbake in your PATH
 or to source oe-init-build-env before running this script.

 Dynamic path inference can be avoided by passing a *.qemuboot.conf to
 runqemu, i.e. `runqemu /path/to/my-image-name.qemuboot.conf`

 Bitbake is needed to run 'bitbake -e', but it is not found in PATH. Please source the bitbake build environment.
```

CC: Richard Purdie <richard.purdie@linuxfoundation.org>
CC: Alexander Kanavin <alex.kanavin@gmail.com>

(From OE-Core rev: 0c10a78796fbdfaa5be4a824c0c9f5cb97c88046)

Signed-off-by: Richard Grünert <r.gruenert@pironex.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Richard Grünert
2025-08-27 08:49:40 +02:00
committed by Richard Purdie
parent 21466040c3
commit 57d97d5970
1 changed files with 4 additions and 3 deletions
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7
scripts/runqemu
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@@ -1692,9 +1692,6 @@ to your build configuration.
self.cleaned = True
def run_bitbake_env(self, mach=None, target=''):
bitbake = shutil.which('bitbake')
if not bitbake:
return
if not mach:
mach = self.get('MACHINE')
@@ -1711,6 +1708,10 @@ to your build configuration.
else:
cmd = 'bitbake -e %s %s' % (multiconfig, target)
bitbake = shutil.which('bitbake')
if not bitbake:
raise OEPathError("Bitbake is needed to run '%s', but it is not found in PATH. Please source the bitbake build environment." % cmd.strip())
logger.info('Running %s...' % cmd)
try:
return subprocess.check_output(cmd, shell=True).decode('utf-8')