add slapos.extension.strip.

slapos.extension.strip_/CHANGES.txt

+Changes
+=======
+
+0.1 (2014-10-22)
+------------------
+
+ * Initial release.
+

slapos.extension.strip_/MANIFEST.in

+include *.txt

slapos.extension.strip_/README.rst

+Buildout Extension to strip binaries
+====================================
+
+slapos.extension.strip is a buildout extension that finds shared
+libraries, binary executables and static libraries, and calls strip(1)
+against them to reduce the size. It is triggered at the end of the
+buildout process.
+
+Usage
+-----
+
+Add ``slapos.extension.strip`` in ``[buildout]`` section's ``extensions`` option like :
+
+::
+
+  [buildout]
+  extensions = slapos.extension.strip
+
+Requirements
+------------
+
+The following programs are required. If any of them is missing, this
+extension does nothing.
+
+- ``file``
+- ``find``
+- ``strip``
+
+Supported Options
+-----------------
+
+``file-binary``
+
+  Path to ``file`` program. Defaults to 'file' which should work on
+  any system that has the make program available in the system
+  ``PATH``.
+
+``find-binary``
+
+  Path to ``find`` program. Defaults to 'find' which should work on
+  any system that has the make program available in the system
+  ``PATH``.
+
+``strip-binary``
+
+  Path to ``strip`` program. Defaults to 'strip' which should work on
+  any system that has the make program available in the system
+  ``PATH``.

slapos.extension.strip_/setup.py

+from setuptools import setup, find_packages
+import os
+
+version = '0.1'
+name = 'slapos.extension.strip'
+
+def read(*rnames):
+    return open(os.path.join(os.path.dirname(__file__), *rnames)).read()
+
+setup(
+    name=name,
+    version=version,
+    description="zc.buildout extension to strip binaries.",
+    long_description=(
+        read('README.rst')
+        + '\n' +
+        read('CHANGES.txt')
+        + '\n' +
+        'Download\n'
+        '***********************\n'
+    ),
+    classifiers=[
+        'Framework :: Buildout :: Extension',
+        'License :: OSI Approved :: BSD License',
+        'Programming Language :: Python',
+        'Topic :: Software Development :: Build Tools',
+    ],
+    keywords='buildout extension strip',
+    author='Kazuhiko Shiozaki',
+    author_email='kazuhiko@nexedi.com',
+    url='http://git.erp5.org/gitweb/slapos.extension.strip',
+    license='BSD',
+    packages=find_packages(exclude=['ez_setup']),
+    namespace_packages=['slapos', 'slapos.extension'],
+    include_package_data=True,
+    zip_safe=False,
+    install_requires=[
+        'zc.buildout',
+    ],
+    entry_points = { 
+        'zc.buildout.unloadextension': [
+             'default = slapos.extension.strip:finish',
+             ],
+        },
+)

slapos.extension.strip_/slapos/__init__.py

+# See http://peak.telecommunity.com/DevCenter/setuptools#namespace-packages
+try:
+    __import__('pkg_resources').declare_namespace(__name__)
+except ImportError:
+    from pkgutil import extend_path
+    __path__ = extend_path(__path__, __name__)

slapos.extension.strip_/slapos/extension/__init__.py

+# See http://peak.telecommunity.com/DevCenter/setuptools#namespace-packages
+try:
+    __import__('pkg_resources').declare_namespace(__name__)
+except ImportError:
+    from pkgutil import extend_path
+    __path__ = extend_path(__path__, __name__)

slapos.extension.strip_/slapos/extension/strip/__init__.py

+import os
+import re
+import stat
+import subprocess
+
+def finish(buildout):
+    print 'Stripping binaries ...'
+    buildout_directory = buildout['buildout']['directory']
+    file_binary = buildout['buildout'].get('file-binary', 'file')
+    find_binary = buildout['buildout'].get('find-binary', 'find')
+    strip_binary = buildout['buildout'].get('strip-binary', 'strip')
+
+    def run_strip(path, strip_args):
+        mode = os.stat(path).st_mode
+        writable_mode = mode | stat.S_IWUSR
+        if mode != writable_mode:
+            os.chmod(path, writable_mode)
+        args = [strip_binary,] + strip_args + [path,]
+        p = subprocess.Popen(args, stdout=subprocess.PIPE)
+        result, _ = p.communicate()
+        if mode != writable_mode:
+            os.chmod(path, mode)
+
+    # Same logic as Debian's dh_strip script.
+    args = [find_binary, buildout_directory, '-type', 'f']
+    try:
+        p = subprocess.Popen(args, stdout=subprocess.PIPE)
+        file_list, _ = p.communicate()
+        shared_lib_list = []
+        executable_list = []
+        static_lib_list = []
+        for path in file_list.splitlines():
+            file_name = os.path.basename(path)
+            if re.match('.*\.(so(\..+)?|cmxs)$', file_name):
+                args = [file_binary, path]
+                p = subprocess.Popen(args, stdout=subprocess.PIPE)
+                result, _ = p.communicate()
+                if re.match('.*ELF.*shared.*not stripped', result):
+                    shared_lib_list.append(path)
+            elif os.stat(path).st_mode & stat.S_IEXEC:
+                args = [file_binary, path]
+                p = subprocess.Popen(args, stdout=subprocess.PIPE)
+                result, _ = p.communicate()
+                if re.match('.*ELF.*(executable|shared).* not stripped', result):
+                    executable_list.append(path)
+            elif re.match('lib.*\.a$', file_name):
+                static_lib_list.append(path)
+        for path in shared_lib_list:
+            strip_args = [
+                '--remove-section=.comment',
+                '--remove-section=.note',
+                '--strip-unneeded',
+            ]
+            run_strip(path, strip_args)
+        for path in executable_list:
+            strip_args = [
+                '--remove-section=.comment',
+                '--remove-section=.note',
+            ]
+            run_strip(path, strip_args)
+        for path in shared_lib_list:
+            strip_args = [
+                '--strip-debug',
+            ]
+            run_strip(path, strip_args)
+        print 'Done.'
+    except OSError, e:
+        print 'Command failed: %s: %s' % (e, args)