mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-17 00:33:06 +00:00
478d9372d1
We are removing bunch of non-generic boards these days. Updating doc/README.scrapyard is a really tedious task, but it can be automated. I hope this tool will make our life easier. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reviewed-by: Simon Glass <sjg@chromium.org>
166 lines
4.9 KiB
Python
Executable file
166 lines
4.9 KiB
Python
Executable file
#!/usr/bin/env python2
|
|
#
|
|
# Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
|
|
#
|
|
# SPDX-License-Identifier: GPL-2.0+
|
|
#
|
|
|
|
"""
|
|
Fill the "Commit" and "Removed" fields of doc/README.scrapyard
|
|
|
|
The file doc/README.scrapyard is used to keep track of removed boards.
|
|
|
|
When we remove support for boards, we are supposed to add entries to
|
|
doc/README.scrapyard leaving "Commit" and "Removed" fields blank.
|
|
|
|
The "Commit" field is the commit hash in which the board was removed
|
|
and the "Removed" is the date at which the board was removed. Those
|
|
two are known only after the board removal patch was applied, thus they
|
|
need to be filled in later.
|
|
|
|
This effectively means that the person who removes other boards is
|
|
supposed to fill in the blank fields before adding new entries to
|
|
doc/README.scrapyard.
|
|
|
|
That is a really tedious task that should be automated.
|
|
This script fills the blank fields of doc/README.scrapyard for you!
|
|
|
|
Usage:
|
|
|
|
The "Commit" and "Removed" fields must be "-". The other fields should
|
|
have already been filled in by a former commit.
|
|
|
|
Run
|
|
scripts/fill_scrapyard.py
|
|
"""
|
|
|
|
import os
|
|
import subprocess
|
|
import sys
|
|
import tempfile
|
|
|
|
DOC='doc/README.scrapyard'
|
|
|
|
def get_last_modify_commit(file, line_num):
|
|
"""Get the commit that last modified the given line.
|
|
|
|
This function runs "git blame" against the given line of the given
|
|
file and returns the commit hash that last modified it.
|
|
|
|
Arguments:
|
|
file: the file to be git-blame'd.
|
|
line_num: the line number to be git-blame'd. This line number
|
|
starts from 1, not 0.
|
|
|
|
Returns:
|
|
Commit hash that last modified the line. The number of digits is
|
|
long enough to form a unique commit.
|
|
"""
|
|
result = subprocess.check_output(['git', 'blame', '-L',
|
|
'%d,%d' % (line_num, line_num), file])
|
|
commit = result.split()[0]
|
|
|
|
if commit[0] == '^':
|
|
sys.exit('%s: line %d: ' % (file, line_num) +
|
|
'this line was modified before the beginning of git history')
|
|
|
|
if commit == '0' * len(commit):
|
|
sys.exit('%s: line %d: locally modified\n' % (file, line_num) +
|
|
'Please run this script in a clean repository.')
|
|
|
|
return commit
|
|
|
|
def get_committer_date(commit):
|
|
"""Get the committer date of the given commit.
|
|
|
|
This function returns the date when the given commit was applied.
|
|
|
|
Arguments:
|
|
commit: commit-ish object.
|
|
|
|
Returns:
|
|
The committer date of the given commit in the form YY-MM-DD.
|
|
"""
|
|
committer_date = subprocess.check_output(['git', 'show', '-s',
|
|
'--format=%ci', commit])
|
|
return committer_date.split()[0]
|
|
|
|
def move_to_topdir():
|
|
"""Change directory to the top of the git repository.
|
|
|
|
Or, exit with an error message if called out of a git repository.
|
|
"""
|
|
try:
|
|
toplevel = subprocess.check_output(['git', 'rev-parse',
|
|
'--show-toplevel'])
|
|
except subprocess.CalledProcessError:
|
|
sys.exit('Please run in a git repository.')
|
|
|
|
# strip '\n'
|
|
toplevel = toplevel.rstrip()
|
|
|
|
# Change the current working directory to the toplevel of the respository
|
|
# for our easier life.
|
|
os.chdir(toplevel)
|
|
|
|
class TmpFile:
|
|
|
|
"""Useful class to handle a temporary file.
|
|
|
|
tempfile.mkstemp() is often used to create a unique temporary file,
|
|
but what is inconvenient is that the caller is responsible for
|
|
deleting the file when done with it.
|
|
|
|
Even when the caller errors out on the way, the temporary file must
|
|
be deleted somehow. The idea here is that we delete the file in
|
|
the destructor of this class because the destructor is always
|
|
invoked when the instance of the class is freed.
|
|
"""
|
|
|
|
def __init__(self):
|
|
"""Constructor - create a temporary file"""
|
|
fd, self.filename = tempfile.mkstemp()
|
|
self.file = os.fdopen(fd, 'w')
|
|
|
|
def __del__(self):
|
|
"""Destructor - delete the temporary file"""
|
|
try:
|
|
os.remove(self.filename)
|
|
except:
|
|
pass
|
|
|
|
def main():
|
|
move_to_topdir()
|
|
|
|
line_num = 1
|
|
|
|
tmpfile = TmpFile()
|
|
for line in open(DOC):
|
|
tmp = line.split(None, 5)
|
|
modified = False
|
|
|
|
if len(tmp) >= 5:
|
|
# fill "Commit" field
|
|
if tmp[3] == '-':
|
|
tmp[3] = get_last_modify_commit(DOC, line_num)
|
|
modified = True
|
|
# fill "Removed" field
|
|
if tmp[4] == '-':
|
|
tmp[4] = get_committer_date(tmp[3])
|
|
if modified:
|
|
line = tmp[0].ljust(17)
|
|
line += tmp[1].ljust(12)
|
|
line += tmp[2].ljust(15)
|
|
line += tmp[3].ljust(12)
|
|
line += tmp[4].ljust(12)
|
|
if len(tmp) >= 6:
|
|
line += tmp[5]
|
|
line = line.rstrip() + '\n'
|
|
|
|
tmpfile.file.write(line)
|
|
line_num += 1
|
|
|
|
os.rename(tmpfile.filename, DOC)
|
|
|
|
if __name__ == '__main__':
|
|
main()
|