Debian package improvements

Author: gershnik

installers/deb/build.py

@@ -6,6 +6,7 @@
 import sys
 import subprocess
 import shutil
+import hashlib
 from pathlib import Path
 
 RELEASE = '1'
@@ -49,10 +50,39 @@
 """.lstrip()
 })
 
+
+def calc_sizes():
+    md5sums = ''
+    total_size = 0
+    buffer = bytearray(4096)
+    view = memoryview(buffer)
+    for item in stagedir.rglob('*'):
+        if not item.is_file():
+            continue
+        relpath = item.relative_to(stagedir)
+        if not relpath.parts[0] == 'etc':
+            md5 = hashlib.md5()
+            with open(item, "rb") as f:
+                while True:
+                    size = f.readinto(buffer)
+                    if size == 0:
+                        break
+                    total_size += size
+                    md5.update(view[:size])
+                md5sums += f'{md5.hexdigest()} {item.relative_to(stagedir)}\n'
+        else:
+            total_size += item.stat().st_size
+    total_size = int(round(total_size / 1024.))
+    return total_size, md5sums
+
+total_size, md5sums = calc_sizes()
+
 debiandir = stagedir/ 'DEBIAN'
 debiandir.mkdir()
 
-(stagedir/ 'debian').symlink_to(debiandir.absolute())
+# on case insensitive filesystem we don't need and cannot create lowercase 'debian'
+if not (stagedir / 'debian').exists():
+    (stagedir / 'debian').symlink_to(debiandir.absolute())
 
 control = debiandir / 'control'
 
@@ -62,6 +92,7 @@
 Source: wsddn
 Version: {VERSION}
 Architecture: {ARCH}
+Installed-Size: {total_size}
 Depends: {{shlibs_Depends}}
 Conflicts: wsdd
 Replaces: wsdd
@@ -72,23 +103,29 @@
 
 """.lstrip())
 
-#shutil.copy(mydir / 'pre',          debiandir / 'preinst')
+shutil.copy(mydir / 'preinst',      debiandir / 'preinst')
 shutil.copy(mydir / 'prerm',        debiandir / 'prerm')
 shutil.copy(mydir / 'postinst',     debiandir / 'postinst')
 shutil.copy(mydir / 'postrm',       debiandir / 'postrm')
 shutil.copy(mydir / 'copyright',    debiandir / 'copyright')
 
 (debiandir / 'conffiles').write_text("""
+/etc/init.d/wsddn
+/etc/ufw/applications.d/wsddn
 /etc/wsddn.conf
 """.lstrip())
 
+(debiandir / 'md5sums').write_text(md5sums)
+
 deps = subprocess.run(['dpkg-shlibdeps', '-O', '-eusr/bin/wsddn'], 
                       check=True, cwd=stagedir, stdout=subprocess.PIPE, encoding="utf-8").stdout.strip()
 key, val = deps.split('=', 1)
 key = key.replace(':', "_")
 control.write_text(control.read_text().format_map({key: val}))
 
-(stagedir/ 'debian').unlink()
+if (stagedir / 'debian').is_symlink():
+    (stagedir / 'debian').unlink()
+
 subprocess.run(['dpkg-deb', '--build', '--root-owner-group', stagedir, workdir], check=True)
 
 subprocess.run(['gzip', '--keep', '--force', builddir / 'wsddn'], check=True)

installers/deb/copyright

@@ -1,22 +1,25 @@
-Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Upstream-Name: wsdd-native
+Upstream-Contact: Eugene Gershnik <gershnik@hotmail.com>
+Source: https://github.com/gershnik/wsdd-native
 
-Files: *
+Files:     *
 Copyright: 2022, Eugene Gershnik
-License: BSD-3-clause
+License:   BSD-3-clause
  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are met:
- 
+ .
  1. Redistributions of source code must retain the above copyright notice, this
-    list of conditions and the following disclaimer.
- 
+ list of conditions and the following disclaimer.
+ .
  2. Redistributions in binary form must reproduce the above copyright notice,
-    this list of conditions and the following disclaimer in the documentation
-    and/or other materials provided with the distribution.
- 
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ .
  3. Neither the name of the copyright holder nor the names of its
-    contributors may be used to endorse or promote products derived from
-    this software without specific prior written permission.
- 
+ contributors may be used to endorse or promote products derived from
+ this software without specific prior written permission.
+ .
  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
@@ -27,3 +30,6 @@ License: BSD-3-clause
  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+Comment:
+ On Debian systems, the complete text of the BSD 3-clause "New" or "Revised"
+ License can be found in `/usr/share/common-licenses/BSD'.

installers/deb/preinst

@@ -0,0 +1,6 @@
+#!/bin/sh
+set -e
+
+if [ "$1" = "install" ] && [ -n "$2" ] && [ -e "/etc/init.d/wsddn" ] ; then
+	chmod +x "/etc/init.d/wsddn" >/dev/null || true
+fi