datatracker/bin/mergeready

415 lines
14 KiB
Python
Executable file

#!/usr/bin/env python
# -*- python -*-
"""
NAME
%(program)s - look for SVN commits that are ready to merge
SYNOPSIS
%(program)s [OPTIONS] ARGS
DESCRIPTION
%(program)s looks in the SVN log for commits which are marked with the
phrase 'Commit ready for merge', and compares the resulting list with
the 'svn:mergeinfo' property on the current directory, in order to
work out which (if any) commits are ready to merge, but not yet
merged. The command requires (and checks) that it's running in a
directory named 'trunk', and requires that to be an SVN working copy.
The files (in the top directory of the working copy) 'ready-for-merge'
and 'hold-for-merge' are also consulted for additions and exceptions to
the merge list.
A list of commit date, committer, and branch@revision for each commit
which is marked ready for merge, but not yet merged, is then written
to standard out.
%(options)s
AUTHOR
Written by Henrik Levkowetz, <henrik@tools.ietf.org>
COPYRIGHT
Copyright 2014 Henrik Levkowetz
This program is free software; you can redistribute it and/or modify
it under the terms of the Simplified BSD license as published by the
Open Source Initiative at http://opensource.org/licenses/BSD-2-Clause.
"""
from __future__ import print_function, unicode_literals
import sys
import os
path = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
if not path in sys.path:
sys.path.insert(0, path)
import getopt
import re
import pytz
import tzparse
import debug
version = "0.20"
program = os.path.basename(sys.argv[0])
progdir = os.path.dirname(sys.argv[0])
# ----------------------------------------------------------------------
# Parse options
options = ""
for line in re.findall("\n +(if|elif) +opt in \[(.+)\]:\s+#(.+)\n", open(sys.argv[0]).read()):
if not options:
options += "OPTIONS\n"
options += " %-16s %s\n" % (line[1].replace('"', ''), line[2])
options = options.strip()
# with ' < 1:' on the next line, this is a no-op:
if len(sys.argv) < 1:
print(__doc__ % locals())
sys.exit(1)
try:
opts, files = getopt.gnu_getopt(sys.argv[1:], "hvV", ["help", "version","verbose",])
except Exception as e:
print( "%s: %s" % (program, e))
sys.exit(1)
# ----------------------------------------------------------------------
# Handle options
# set default values, if any
opt_verbose = 0
# handle individual options
for opt, value in opts:
if opt in ["-h", "--help"]: # Output this help, then exit
print( __doc__ % locals() )
sys.exit(1)
elif opt in ["-V", "--version"]: # Output version information, then exit
print( program, version )
sys.exit(0)
elif opt in ["-v", "--verbose"]: # Output version information, then exit
opt_verbose += 1
# ----------------------------------------------------------------------
def say(s):
sys.stderr.write("%s\n" % (s))
# ----------------------------------------------------------------------
def note(s):
if opt_verbose:
sys.stderr.write("%s\n" % (s))
# ----------------------------------------------------------------------
def die(s, error=1):
sys.stderr.write("\n%s: Error: %s\n\n" % (program, s))
sys.exit(error)
# ----------------------------------------------------------------------
# The program itself
import os
import json
cwd = os.getcwd()
if cwd.split(os.path.sep)[-1] != 'trunk':
die("Expected to run this operation in trunk, but the current\ndirectory is '%s'" % cwd)
# ----------------------------------------------------------------------
# Some utility functions
def pipe(cmd, inp=None):
import shlex
from subprocess import Popen, PIPE
args = shlex.split(cmd)
bufsize = 4096
stdin = PIPE if inp else None
pipe = Popen(args, stdin=stdin, stdout=PIPE, stderr=PIPE, bufsize=bufsize)
out, err = pipe.communicate(inp)
code = pipe.returncode
if code != 0:
raise OSError(err)
return out.decode('utf-8')
def split_loginfo(line):
try:
parts = line.split()
rev = parts[0][1:]
who = parts[2]
date = parts[4]
time = parts[5]
tz = parts[6]
when = tzparse.tzparse(" ".join(parts[4:7]), "%Y-%m-%d %H:%M:%S %Z")
when = when.astimezone(pytz.utc)
except ValueError as e:
sys.stderr.write("Bad log line format: %s\n %s\n" % (line, e))
return rev, who, when
# ----------------------------------------------------------------------
# Get repository information
svn_info = {}
for line in pipe('svn info .').splitlines():
if line:
key, value = line.strip().split(':', 1)
svn_info[key] = value.strip()
repo = svn_info["Repository Root"]
head = int(svn_info['Revision'])
# Get current mergeinfo from cache and svn
cachefn = os.path.join(os.environ.get('HOME', '.'), '.mergeinfo')
if os.path.exists(cachefn):
note("Reading mergeinfo cache file %s" % cachefn)
with open(cachefn, "r") as file:
cache = json.load(file)
else:
sys.stderr.write("No merge info cache file found -- will have to extract all information from SVN.\n"+
"This may take some time.\n\n")
opt_verbose = True
cache = {}
mergeinfo = cache[repo] if repo in cache else {}
merged_revs = {}
write_cache = False
loginfo_format = r'^r[0-9]+ \| [^@]+@[^@]+ \| \d\d\d\d-\d\d-\d\d '
note("Getting svn:mergeinfo for current branch")
for line in pipe('svn propget svn:mergeinfo .').splitlines():
if opt_verbose:
sys.stderr.write('.')
if line in mergeinfo:
merged = mergeinfo[line]
else:
merged = {}
branch, revs = line.strip().split(':',1)
for part in revs.split(','):
if '-' in part:
beg, end = part.split('-')
try:
commit_log = pipe('svn log -v -r %s:%s %s%s' % (beg, end, repo, branch))
for logline in commit_log.splitlines():
if re.search(loginfo_format, logline):
rev, who, when = split_loginfo(logline)
merged[rev] = branch[1:]
write_cache = True
except OSError:
pass
else:
merged[part] = branch[1:]
write_cache = True
mergeinfo[line] = merged
merged_revs.update(merged)
note('')
if write_cache:
cache[repo] = mergeinfo
with open(cachefn, "w") as file:
json.dump(cache, file, indent=2, sort_keys=True)
def get_changeset_list_from_file(repo, filename):
"""
This is used to read changesets to hold or merge from the ready-for-merge
and hold-for-merge files.
"""
list = []
if os.path.exists(filename):
note("Reading list from '%s'" % filename)
else:
note("File doesn't exist: '%s'" % filename)
return list
with open(filename) as file:
for line in file:
line = line.strip()
if line.startswith('#') or line == "":
continue
try:
#note(" '%s'" % line)
parts = line.split()
if len(parts) >1 and parts[1] == '@':
branch, rev = parts[0], parts[2]
changeset = "%s@%s" % (branch, rev)
else:
changeset = parts[0]
branch, rev = changeset.split('@')
if branch.startswith('^'):
branch = branch[1:]
if branch.startswith('/'):
branch = branch[1:]
if not (rev in merged_revs and branch == merged_revs[rev]):
list += [(rev, repo, branch),]
#elif rev in merged_revs and not branch == merged_revs[rev]:
# sys.stderr.write('Rev %s: %s != %s' % (rev, branch, merged_revs[rev]))
else:
#sys.stderr.write('Already merged: merged_revs[%s]: %s\n' % (rev, merged_revs[rev]))
pass
except ValueError as e:
sys.stderr.write("Bad changeset specification in %s: '%s': %s\n" % (file.name, changeset, e))
return list
def get_ready_commits(repo, tree):
list = []
note("Getting ready commits from '%s'" % tree)
cmd = 'svn log -v -r %s:HEAD %s/%s/' % ((head-200), repo, tree)
if opt_verbose > 1:
note("Running '%s' ..." % cmd)
commit_log = pipe(cmd)
for line in commit_log.splitlines():
if re.search(loginfo_format, line):
rev, who, when = split_loginfo(line)
branch = None
continue
if (line.startswith(' M') or line.startswith(' A') or line.startswith(' D')) and branch == None:
type, path = line[:4], line[5:]
if ' (from ' in path:
i = path.index(' (from ')
path = path[:i]
branch = '/'.join(path.split('/')[1:4])
elif re.search("(?i)((commit|branch) ready (for|to) merge)", line):
if not rev in merged_revs:
note(" %s %s: %s@%s" % (when.strftime("%Y-%m-%d %H:%MZ"), who, branch, rev))
list += [(rev, repo, branch),]
elif rev in merged_revs and not branch == merged_revs[rev]:
sys.stderr.write('Rev %s: %s != %s\n' % (rev, branch, merged_revs[rev]))
else:
pass
else:
pass
return list
ready = get_changeset_list_from_file(repo, 'ready-for-merge')
ready += get_changeset_list_from_file(repo, '../ready-for-merge')
hold = get_changeset_list_from_file(repo, 'hold-for-merge')
hold += get_changeset_list_from_file(repo, '../hold-for-merge')
ready += get_ready_commits(repo, 'personal')
ready += get_ready_commits(repo, 'branch/iola')
ready += get_ready_commits(repo, 'branch/dash')
ready_commits = {}
all_commits = {}
not_passed = {}
branches = set()
for entry in ready:
rev, repo, branch = entry
branches.add(branch)
# Get the time, committer, and commit message
cmd = 'svn log -v -r %s %s/%s/' % (rev, repo, branch)
if opt_verbose > 1:
note("Running '%s' ..." % cmd)
try:
loginfo = pipe(cmd).splitlines()
except OSError:
continue
try:
rev, who, when = split_loginfo(loginfo[1])
except IndexError:
die("Wrong changeset version in %s@%s ?" % (branch, rev))
for line in loginfo[3:]:
type, path = line[:4], line[5:]
if 'M' in type or 'A' in type or 'D' in type:
if ' (from ' in path:
i = path.index(' (from ')
path = path[:i]
break
# Get the test status
try:
cmd = 'svn propget --revprop -r %s "test:unittest"' % rev
unittest = pipe(cmd).strip()
except OSError as e:
if "E200017" in str(e):
unittest = ""
pass
else:
raise
#
dirs = path.split(os.path.sep)
dirs = dirs[:dirs.index('ietf')] if 'ietf' in dirs else dirs[:4]
merge_path = os.path.join(*dirs)
if not (rev, repo, merge_path) in hold:
output_line = "%s %-24s ^/%s@%s" % (when.strftime("%Y-%m-%d_%H:%MZ"), who+":", merge_path, rev)
all_commits[when] = (rev, repo, branch, who, merge_path)
if unittest == 'passed':
ready_commits[when] = output_line
else:
not_passed[when] = output_line
hold_revs = {}
for rev, repo, branch in hold:
hold_revs[rev] = branch
unmerged_branch_commits = {}
for branch in branches:
try:
cmd = 'svn ls %s/%s --depth empty' % (repo, branch)
_ = pipe(cmd)
except OSError:
note("Skipping nonexistent branch %s" % branch)
continue
note("Fetching commit information for branch %s" % branch)
commits = []
cmd = 'svn log -v -r 0:HEAD --stop-on-copy %s/%s/' % (repo, branch)
commit_log = pipe(cmd)
rev = None
mod = False
for line in commit_log.splitlines():
if re.search(loginfo_format, line):
rev, who, when = split_loginfo(line)
elif re.search('^ [AMD]', line):
if not ' (from ' in line and not mod:
mod = True
elif re.search('^-{72}$', line) and rev and mod:
if not rev in merged_revs and not rev in hold_revs:
commits.append(rev)
rev = None
mod = False
commits.sort()
unmerged_branch_commits[branch] = commits
keys = list(all_commits.keys())
keys.sort()
# Check that we don't have holes in the commit list -- commits not mentioned
# as ready for merge, and not already merged, earlier than a waiting commit.
unmerged = False
for key in keys:
(rev, repo, branch, who, merge_path) = all_commits[key]
try:
i = unmerged_branch_commits[branch].index(rev)
except:
say("Unexpected state. Mismatch between branch name and revision in hold-for-merge or ready-for-merge?")
raise
if not i == 0:
unmerged = True
sys.stderr.write("There are unmerged commits ahead of r%s on branch ^/%s:\n" % (rev, branch))
for j in range(0,i):
commit = unmerged_branch_commits[branch][j]
if commit != rev:
sys.stderr.write(" %s:\n" % commit)
commit_comment = pipe("svn log -c %s ^/" % commit).splitlines()[3:-1]
for l in commit_comment:
sys.stderr.write(" %s\n" % l)
unmerged_branch_commits[branch] = unmerged_branch_commits[branch][i:]
sys.stderr.write("\n")
del unmerged_branch_commits[branch][0]
keys = list(not_passed.keys())
keys.sort()
if len(keys) > 0:
print("")
print("Commits marked ready which haven't passed the test suite:\n")
for key in keys:
print(not_passed[key])
print('')
keys = list(ready_commits.keys())
keys.sort()
for key in keys:
print(ready_commits[key])
print("\n%s pending merges" % len(keys))