build: move meta-shebang back to `configure`

PR-URL: https://github.com/nodejs/node/pull/22450
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>

1 files changed, 28 insertions, 0 deletions

diff --git a/configure b/configure
new file mode 100755
index 0000000000..495d0e8848
--- /dev/null
+++ b/configure
@@ -0,0 +1,28 @@
+#!/bin/sh
+
+# 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.
+_=[ 'exec' '/bin/sh' '-c' '''
+which python2.7 >/dev/null && exec python2.7 "$0" "$@"
+which python2 >/dev/null && exec python2 "$0" "$@"
+exec python "$0" "$@"
+''' "$0" "$@"
+]
+del _
+
+import sys
+from distutils.spawn import find_executable as which
+if sys.version_info[0] != 2 or sys.version_info[1] not in (6, 7):
+  sys.stderr.write('Please use either Python 2.6 or 2.7')
+
+  python2 = which('python2') or which('python2.6') or which('python2.7')
+
+  if python2:
+    sys.stderr.write(':\n\n')
+    sys.stderr.write('  ' + python2 + ' ' + ' '.join(sys.argv))
+
+  sys.stderr.write('\n')
+  sys.exit(1)
+
+import configure