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# Copyright (c) 2013 The Chromium OS Authors.
#
# SPDX-License-Identifier: GPL-2.0+
#
import multiprocessing
import os
import sys
import board
import bsettings
from builder import Builder
import gitutil
import patchstream
import terminal
import toolchain
import command
import subprocess
def GetPlural(count):
"""Returns a plural 's' if count is not 1"""
return 's' if count != 1 else ''
def GetActionSummary(is_summary, count, selected, options):
"""Return a string summarising the intended action.
Returns:
Summary string.
"""
count = (count + options.step - 1) / options.step
str = '%s %d commit%s for %d boards' % (
'Summary of' if is_summary else 'Building', count, GetPlural(count),
len(selected))
str += ' (%d thread%s, %d job%s per thread)' % (options.threads,
GetPlural(options.threads), options.jobs, GetPlural(options.jobs))
return str
def ShowActions(series, why_selected, boards_selected, builder, options):
"""Display a list of actions that we would take, if not a dry run.
Args:
series: Series object
why_selected: Dictionary where each key is a buildman argument
provided by the user, and the value is the boards brought
in by that argument. For example, 'arm' might bring in
400 boards, so in this case the key would be 'arm' and
the value would be a list of board names.
boards_selected: Dict of selected boards, key is target name,
value is Board object
builder: The builder that will be used to build the commits
options: Command line options object
"""
col = terminal.Color()
print 'Dry run, so not doing much. But I would do this:'
print
print GetActionSummary(False, len(series.commits), boards_selected,
options)
print 'Build directory: %s' % builder.base_dir
for upto in range(0, len(series.commits), options.step):
commit = series.commits[upto]
print ' ', col.Color(col.YELLOW, commit.hash, bright=False),
print commit.subject
print
for arg in why_selected:
if arg != 'all':
print arg, ': %d boards' % why_selected[arg]
print ('Total boards to build for each commit: %d\n' %
why_selected['all'])
def DoBuildman(options, args):
"""The main control code for buildman
Args:
options: Command line options object
args: Command line arguments (list of strings)
"""
gitutil.Setup()
bsettings.Setup()
options.git_dir = os.path.join(options.git, '.git')
toolchains = toolchain.Toolchains()
toolchains.Scan(options.list_tool_chains)
if options.list_tool_chains:
toolchains.List()
print
return
# Work out how many commits to build. We want to build everything on the
# branch. We also build the upstream commit as a control so we can see
# problems introduced by the first commit on the branch.
col = terminal.Color()
count = options.count
if count == -1:
if not options.branch:
str = 'Please use -b to specify a branch to build'
print col.Color(col.RED, str)
sys.exit(1)
count = gitutil.CountCommitsInBranch(options.git_dir, options.branch)
if count is None:
str = "Branch '%s' not found or has no upstream" % options.branch
print col.Color(col.RED, str)
sys.exit(1)
count += 1 # Build upstream commit also
if not count:
str = ("No commits found to process in branch '%s': "
"set branch's upstream or use -c flag" % options.branch)
print col.Color(col.RED, str)
sys.exit(1)
# Work out what subset of the boards we are building
board_file = os.path.join(options.git, 'boards.cfg')
if not os.path.exists(board_file):
print 'Could not find %s' % board_file
status = subprocess.call([os.path.join(options.git,
'tools/genboardscfg.py')])
if status != 0:
print >> sys.stderr, "Failed to generate boards.cfg"
sys.exit(1)
boards = board.Boards()
boards.ReadBoards(os.path.join(options.git, 'boards.cfg'))
why_selected = boards.SelectBoards(args)
selected = boards.GetSelected()
if not len(selected):
print col.Color(col.RED, 'No matching boards found')
sys.exit(1)
# Read the metadata from the commits. First look at the upstream commit,
# then the ones in the branch. We would like to do something like
# upstream/master~..branch but that isn't possible if upstream/master is
# a merge commit (it will list all the commits that form part of the
# merge)
range_expr = gitutil.GetRangeInBranch(options.git_dir, options.branch)
upstream_commit = gitutil.GetUpstream(options.git_dir, options.branch)
series = patchstream.GetMetaDataForList(upstream_commit, options.git_dir,
1)
# Conflicting tags are not a problem for buildman, since it does not use
# them. For example, Series-version is not useful for buildman. On the
# other hand conflicting tags will cause an error. So allow later tags
# to overwrite earlier ones.
series.allow_overwrite = True
series = patchstream.GetMetaDataForList(range_expr, options.git_dir, None,
series)
# By default we have one thread per CPU. But if there are not enough jobs
# we can have fewer threads and use a high '-j' value for make.
if not options.threads:
options.threads = min(multiprocessing.cpu_count(), len(selected))
if not options.jobs:
options.jobs = max(1, (multiprocessing.cpu_count() +
len(selected) - 1) / len(selected))
if not options.step:
options.step = len(series.commits) - 1
gnu_make = command.Output(os.path.join(options.git,
'scripts/show-gnu-make')).rstrip()
if not gnu_make:
print >> sys.stderr, 'GNU Make not found'
sys.exit(1)
# Create a new builder with the selected options
output_dir = os.path.join(options.output_dir, options.branch)
builder = Builder(toolchains, output_dir, options.git_dir,
options.threads, options.jobs, gnu_make=gnu_make, checkout=True,
show_unknown=options.show_unknown, step=options.step)
builder.force_config_on_failure = not options.quick
# For a dry run, just show our actions as a sanity check
if options.dry_run:
ShowActions(series, why_selected, selected, builder, options)
else:
builder.force_build = options.force_build
builder.force_build_failures = options.force_build_failures
builder.force_reconfig = options.force_reconfig
builder.in_tree = options.in_tree
# Work out which boards to build
board_selected = boards.GetSelectedDict()
print GetActionSummary(options.summary, count, board_selected, options)
if options.summary:
# We can't show function sizes without board details at present
if options.show_bloat:
options.show_detail = True
builder.ShowSummary(series.commits, board_selected,
options.show_errors, options.show_sizes,
options.show_detail, options.show_bloat)
else:
builder.BuildBoards(series.commits, board_selected,
options.show_errors, options.keep_outputs)
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