[oe-commits] [bitbake] 04/04: fetch2: runfetchcmd(): unset _PYTHON_SYSCONFIGDATA_NAME

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rpurdie pushed a commit to branch master-next
in repository bitbake.

commit d94ccd506d04aff182ab48f501f6f366d5dd14f5
Author: Matthias Schiffer <matthias.schiffer at ew.tq-group.com>
AuthorDate: Wed May 22 11:13:10 2019 +0200

    fetch2: runfetchcmd(): unset _PYTHON_SYSCONFIGDATA_NAME
    
    Since warrior, python3native.bbclass sets _PYTHON_SYSCONFIGDATA_NAME;
    unfortunately, this also affects Python scripts run as fetch commands like
    git-make-shallow, breaking it with a message like
    
        Failed to import the site module
        Traceback (most recent call last):
          File "/usr/lib/python3.6/site.py", line 570, in <module>
            main()
          File "/usr/lib/python3.6/site.py", line 556, in main
            known_paths = addusersitepackages(known_paths)
          File "/usr/lib/python3.6/site.py", line 288, in addusersitepackages
            user_site = getusersitepackages()
          File "/usr/lib/python3.6/site.py", line 264, in getusersitepackages
            user_base = getuserbase() # this will also set USER_BASE
          File "/usr/lib/python3.6/site.py", line 254, in getuserbase
            USER_BASE = get_config_var('userbase')
          File "/usr/lib/python3.6/sysconfig.py", line 607, in get_config_var
            return get_config_vars().get(name)
          File "/usr/lib/python3.6/sysconfig.py", line 550, in get_config_vars
            _init_posix(_CONFIG_VARS)
          File "/usr/lib/python3.6/sysconfig.py", line 421, in _init_posix
            _temp = __import__(name, globals(), locals(), ['build_time_vars'], 0)
        ModuleNotFoundError: No module named '_sysconfigdata'
    
    on an Ubuntu 18.04 system (and likely others) when building with
    BB_GIT_SHALLOW and BB_GENERATE_SHALLOW_TARBALLS.
    
    Unset _PYTHON_SYSCONFIGDATA_NAME in runfetchcmd() to work around this.
    
    Signed-off-by: Matthias Schiffer <matthias.schiffer at ew.tq-group.com>
    Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 lib/bb/fetch2/__init__.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/bb/fetch2/__init__.py b/lib/bb/fetch2/__init__.py
index 0126e0d..f6b5529 100644
--- a/lib/bb/fetch2/__init__.py
+++ b/lib/bb/fetch2/__init__.py
@@ -843,6 +843,11 @@ def runfetchcmd(cmd, d, quiet=False, cleanup=None, log=None, workdir=None):
         if val:
             cmd = 'export ' + var + '=\"%s\"; %s' % (val, cmd)
 
+    # Ensure that a _PYTHON_SYSCONFIGDATA_NAME value set by a recipe
+    # (for example via python3native.bbclass since warrior) is not set for
+    # host Python (otherwise tools like git-make-shallow will fail)
+    cmd = 'unset _PYTHON_SYSCONFIGDATA_NAME; ' + cmd
+
     # Disable pseudo as it may affect ssh, potentially causing it to hang.
     cmd = 'export PSEUDO_DISABLED=1; ' + cmd
 

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