[gentoo-commits] data/api:master commit in: bin/

[Michał Górny]

commit:     f4e95acad6b529d269e8b37b780707bf5734fc0d
Author:     Eugene Bright <eugene <AT> bright <DOT> gdn>
AuthorDate: Sun Aug  5 22:57:37 2018 +0000
Commit:     Michał Górny <mgorny <AT> gentoo <DOT> org>
CommitDate: Tue Aug  7 07:52:08 2018 +0000
URL:        https://gitweb.gentoo.org/data/api.git/commit/?id=f4e95aca

repositories: Add sorting script

 bin/gpl-3.0.txt          | 674 +++++++++++++++++++++++++++++++++++++++++++++++
 bin/sort_repositories.py | 162 ++++++++++++
 2 files changed, 836 insertions(+)

diff --git a/bin/gpl-3.0.txt b/bin/gpl-3.0.txt
new file mode 100644
index 0000000..f288702
--- /dev/null
+++ b/bin/gpl-3.0.txt
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
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+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

diff --git a/bin/sort_repositories.py b/bin/sort_repositories.py
new file mode 100755
index 0000000..18e512e
--- /dev/null
+++ b/bin/sort_repositories.py
@@ -0,0 +1,162 @@
+#!/usr/bin/env python3
+
+"""
+This script is aimed to automate repositories.xml file formatting.
+<repo> nodes are sorted by name field value as a part of the process.
+python version >= 3.5 is required
+
+Copyright (C) 2018 Eugene Bright <eugene@××××××.gdn>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+"""
+
+import sys
+import argparse
+from lxml import etree
+import typing
+
+parser = argparse.ArgumentParser(
+        "Sort overlay repos list by name")
+parser.add_argument(
+        "path",
+        help="path to repositories.xml")
+
+
+def find_repositories_node(
+        etree: etree.ElementTree
+    ) -> etree.Element:
+    return repo_etree.xpath("/repositories")[0]
+
+
+def find_repo_nodes(
+        repositories_node: etree.Element
+    ) -> typing.List[etree.Element]:
+    """
+    This function is designed to work
+    on <repositories> node, returned
+    by `find_repositories_node()` function.
+
+    """
+
+    return repositories_node.xpath("./repo")
+
+
+name_xpath = etree.XPath("./name/text()")
+
+def extract_repo_name(
+        repo_node: etree.Element
+    ) -> str:
+    """
+    Extract repo name from repo node.
+    """
+
+    return name_xpath(repo_node)[0]
+
+
+def sort_repo_nodes(
+        repo_nodes: typing.List[etree.Element]
+        ) -> None:
+    """
+    Sort nodes list by name case insensitively.
+
+    It does work in-place on the list provided.
+    Python sorting algorithm is stable,
+    so original order must be preserved
+    if appropriate.
+    """
+
+    repo_nodes.sort(
+            key=lambda node:
+                extract_repo_name(node)
+                    .lower())
+
+
+def reinsert_repo_nodes(
+        repositories_node: etree.Element,
+        repo_nodes: typing.List[etree.Element]
+    ) -> None:
+    """
+    Remove all <repo> node from <repositories>
+    and reinsert them back in the order
+    provided in the list.
+    """
+
+    for repo_node in repo_nodes:
+        repositories_node.remove(repo_node)
+
+    for repo_node in repo_nodes:
+        repositories_node.append(repo_node)
+
+
+def vim_modelines_fixup(
+        repositories_node: etree.Element
+    ) -> None:
+    """
+    Find, remove and reinsert modeline comment
+    to the end of the file.
+    """
+
+    vim_comments = []
+    for node in repositories_node:
+        if (
+            isinstance(node, etree._Comment)
+            and node.text.startswith(" vim:")
+            ):
+            vim_comments.append(node)
+
+    for vim_comment in vim_comments:
+        repositories_node.remove(vim_comment)
+        repositories_node.append(vim_comment)
+
+
+def format_xml(
+        repo_etree: etree.Element
+    ) -> str:
+    """
+    Return text pretty-printed representation
+    of chosen XML node.
+
+    Works best on document root as it preserves <!DOCTYPE>.
+    """
+
+    return (
+        etree.tostring(
+            repo_etree,
+            xml_declaration=True,
+            encoding="utf-8",
+            pretty_print=2)
+                .decode())
+
+
+if __name__ == "__main__":
+    args = parser.parse_args()
+
+    repo_file = open(args.path, "rb")
+    repo_etree = etree.parse(
+            repo_file,
+            etree.XMLParser(remove_blank_text=True))
+
+    repositories_node = find_repositories_node(repo_etree)
+    repo_nodes = find_repo_nodes(repositories_node)
+
+    sort_repo_nodes(repo_nodes)
+    reinsert_repo_nodes(
+            repositories_node,
+            repo_nodes)
+
+    vim_modelines_fixup(repositories_node)
+
+    sys.stdout.write(
+        format_xml(repo_etree))
+