Merge lp:~ed.so/duplicity/setup.shebang into lp:~duplicity-team/duplicity/0.7-series

[edso]

having the python interpreter searched in the PATH is much more flexible than the /usr/bin/python inserted into our scripts shebang by setuptools.

this patch prevents that. don't touch my shebang! :)

[lp:~ed.so/duplicity/setup.shebang]

1137. By edso on 2015-10-26

also check python version number upper bound. we run on 2.6 and 2.7 currently

=== modified file 'setup.py'
--- setup.py	2015-02-01 17:37:37 +0000
+++ setup.py	2015-10-26 15:47:21 +0000
@@ -26,11 +26,12 @@
 from setuptools.command.test import test
 from setuptools.command.install import install
 from setuptools.command.sdist import sdist
+from distutils.command.build_scripts import build_scripts
 
 version_string = "$version"
 
-if sys.version_info[:2] < (2, 6):
-    print("Sorry, duplicity requires version 2.6 or later of python")
+if sys.version_info[:2] < (2, 6) or sys.version_info[:2] > (2, 7):
+    print("Sorry, duplicity requires version 2.6 or 2.7 of python.")
     sys.exit(1)
 
 incdir_list = libdir_list = None
@@ -122,6 +123,44 @@
         os.system("mkdir -p " + self.dist_dir)
         os.system("mv duplicity-" + version + ".tar.gz " + self.dist_dir)
 
+# don't touch my shebang
+class BSCommand (build_scripts):
+    def run(self):
+        """
+        Copy, chmod each script listed in 'self.scripts'
+        essentially this is the stripped 
+         distutils.command.build_scripts.copy_scripts()
+        routine
+        """
+        from stat import ST_MODE
+        from distutils.dep_util import newer
+        from distutils import log
+
+        self.mkpath(self.build_dir)
+        outfiles = []
+        for script in self.scripts:
+            outfile = os.path.join(self.build_dir, os.path.basename(script))
+            outfiles.append(outfile)
+
+            if not self.force and not newer(script, outfile):
+                log.debug("not copying %s (up-to-date)", script)
+                continue
+
+            log.info("copying and NOT adjusting %s -> %s", script,
+                         self.build_dir)
+            self.copy_file(script, outfile)
+
+        if os.name == 'posix':
+            for file in outfiles:
+                if self.dry_run:
+                    log.info("changing mode of %s", file)
+                else:
+                    oldmode = os.stat(file)[ST_MODE] & 0o7777
+                    newmode = (oldmode | 0o555) & 0o7777
+                    if newmode != oldmode:
+                        log.info("changing mode of %s from %o to %o",
+                                 file, oldmode, newmode)
+                        os.chmod(file, newmode)
 
 setup(name="duplicity",
       version=version_string,
@@ -151,5 +190,6 @@
       test_suite='testing',
       cmdclass={'test': TestCommand,
                 'install': InstallCommand,
-                'sdist': SDistCommand},
+                'sdist': SDistCommand,
+                'build_scripts': BSCommand},
       )