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build: find Python 3 or Python 2 in configure
PR-URL: #25878 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: Sakthipriyan Vairamani <[email protected]> Reviewed-By: Ben Noordhuis <[email protected]> Reviewed-By: Sam Roberts <[email protected]>
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@@ -1,28 +1,34 @@ | ||
#!/bin/sh | ||
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# Locate python2 interpreter and re-execute the script. Note that the | ||
# mix of single and double quotes is intentional, as is the fact that | ||
# the ] goes on a new line. | ||
# Locate an acceptable python interpreter and then re-execute the script. | ||
# Note that the mix of single and double quotes is intentional, | ||
# as is the fact that the ] goes on a new line. | ||
# When a 'which' call is made for a specific version of Python on Travis CI, | ||
# pyenv will alert which shims are available and then will fail the build. | ||
_=[ 'exec' '/bin/sh' '-c' ''' | ||
test ${TRAVIS} && exec python "$0" "$@" # workaround for pyenv on Travis CI | ||
which python2.7 >/dev/null && exec python2.7 "$0" "$@" | ||
which python2 >/dev/null && exec python2 "$0" "$@" | ||
which python3.7 >/dev/null && exec python3.7 "$0" "$@" | ||
which python3.6 >/dev/null && exec python3.6 "$0" "$@" | ||
which python3.5 >/dev/null && exec python3.5 "$0" "$@" | ||
exec python "$0" "$@" | ||
''' "$0" "$@" | ||
] | ||
del _ | ||
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import sys | ||
from distutils.spawn import find_executable as which | ||
if sys.version_info[:2] != (2, 7): | ||
sys.stderr.write('Please use Python 2.7') | ||
from distutils.spawn import find_executable | ||
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python2 = which('python2') or which('python2.7') | ||
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if python2: | ||
sys.stderr.write(':\n\n') | ||
sys.stderr.write(' ' + python2 + ' ' + ' '.join(sys.argv)) | ||
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sys.stderr.write('\n') | ||
print('Node configure: Found Python {0}.{1}.{2}...'.format(*sys.version_info)) | ||
acceptable_pythons = ((2, 7), (3, 7), (3, 6), (3, 5)) | ||
if sys.version_info[:2] in acceptable_pythons: | ||
import configure | ||
else: | ||
python_cmds = ['python{0}.{1}'.format(*vers) for vers in acceptable_pythons] | ||
sys.stderr.write('Please use {0}.\n'.format(' or '.join(python_cmds))) | ||
for python_cmd in python_cmds: | ||
python_cmd_path = find_executable(python_cmd) | ||
if python_cmd_path and 'pyenv/shims' not in python_cmd_path: | ||
sys.stderr.write('\t{0} {1}\n'.format(python_cmd_path, | ||
' '.join(sys.argv[:1]))) | ||
sys.exit(1) | ||
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import configure |