blob: 55cfe4b234ee54c1df80003bda0dbf4364f3ac30 [file] [log] [blame]
#!/usr/bin/env python
# ex:ts=4:sw=4:sts=4:et
# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
# Copyright (c) 2013 Wind River Systems, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
from __future__ import print_function
import os
import sys
import getopt
import shutil
import re
import warnings
import subprocess
from optparse import OptionParser
scripts_path = os.path.abspath(os.path.dirname(os.path.abspath(sys.argv[0])))
lib_path = scripts_path + '/lib'
sys.path = sys.path + [lib_path]
import scriptpath
# Figure out where is the bitbake/lib/bb since we need bb.siggen and bb.process
bitbakepath = scriptpath.add_bitbake_lib_path()
if not bitbakepath:
sys.stderr.write("Unable to find bitbake by searching parent directory of this script or PATH\n")
import bb.siggen
import bb.process
# Match the stamp's filename
# group(1): PE_PV (may no PE)
# group(2): PR
# group(3): TASK
# group(4): HASH
stamp_re = re.compile("(?P<pv>.*)-(?P<pr>r\d+)\.(?P<task>do_\w+)\.(?P<hash>[^\.]*)")
sigdata_re = re.compile(".*\.sigdata\..*")
def gen_dict(stamps):
Generate the dict from the stamps dir.
The output dict format is:
{fake_f: {pn: PN, pv: PV, pr: PR, task: TASK, path: PATH}}
fake_f: pv + task + hash
path: the path to the stamp file
# The member of the sub dict (A "path" will be appended below)
sub_mem = ("pv", "pr", "task")
d = {}
for dirpath, _, files in os.walk(stamps):
for f in files:
# The "bitbake -S" would generate ".sigdata", but no "_setscene".
fake_f = re.sub('_setscene.', '.', f)
fake_f = re.sub('.sigdata', '', fake_f)
subdict = {}
tmp = stamp_re.match(fake_f)
if tmp:
for i in sub_mem:
subdict[i] =
if len(subdict) != 0:
pn = os.path.basename(dirpath)
subdict['pn'] = pn
# The path will be used by os.stat() and bb.siggen
subdict['path'] = dirpath + "/" + f
fake_f ='pv') +'task') +'hash')
d[fake_f] = subdict
return d
# Re-construct the dict
def recon_dict(dict_in):
The output dict format is:
{pn_task: {pv: PV, pr: PR, path: PATH}}
dict_out = {}
for k in dict_in.keys():
subdict = {}
# The key
pn_task = "%s_%s" % (dict_in.get(k).get('pn'), dict_in.get(k).get('task'))
# If more than one stamps are found, use the latest one.
if pn_task in dict_out:
full_path_pre = dict_out.get(pn_task).get('path')
full_path_cur = dict_in.get(k).get('path')
if os.stat(full_path_pre).st_mtime > os.stat(full_path_cur).st_mtime:
subdict['pv'] = dict_in.get(k).get('pv')
subdict['pr'] = dict_in.get(k).get('pr')
subdict['path'] = dict_in.get(k).get('path')
dict_out[pn_task] = subdict
return dict_out
def split_pntask(s):
Split the pn_task in to (pn, task) and return it
tmp = re.match("(.*)_(do_.*)", s)
return (,
def print_added(d_new = None, d_old = None):
Print the newly added tasks
added = {}
for k in d_new.keys():
if k not in d_old:
# Add the new one to added dict, and remove it from
# d_new, so the remaining ones are the changed ones
added[k] = d_new.get(k)
if not added:
return 0
# Format the output, the dict format is:
# {pn: task1, task2 ...}
added_format = {}
counter = 0
for k in added.keys():
pn, task = split_pntask(k)
if pn in added_format:
# Append the value
added_format[pn] = "%s %s" % (added_format.get(pn), task)
added_format[pn] = task
counter += 1
print("=== Newly added tasks: (%s tasks)" % counter)
for k in added_format.keys():
print(" %s: %s" % (k, added_format.get(k)))
return counter
def print_vrchanged(d_new = None, d_old = None, vr = None):
Print the pv or pr changed tasks.
The arg "vr" is "pv" or "pr"
pvchanged = {}
counter = 0
for k in d_new.keys():
if d_new.get(k).get(vr) != d_old.get(k).get(vr):
counter += 1
pn, task = split_pntask(k)
if pn not in pvchanged:
# Format the output, we only print pn (no task) since
# all the tasks would be changed when pn or pr changed,
# the dict format is:
# {pn: pv/pr_old -> pv/pr_new}
pvchanged[pn] = "%s -> %s" % (d_old.get(k).get(vr), d_new.get(k).get(vr))
if not pvchanged:
return 0
print("\n=== %s changed: (%s tasks)" % (vr.upper(), counter))
for k in pvchanged.keys():
print(" %s: %s" % (k, pvchanged.get(k)))
return counter
def print_depchanged(d_new = None, d_old = None, verbose = False):
Print the dependency changes
depchanged = {}
counter = 0
for k in d_new.keys():
counter += 1
pn, task = split_pntask(k)
if (verbose):
full_path_old = d_old.get(k).get("path")
full_path_new = d_new.get(k).get("path")
# No counter since it is not ready here
if sigdata_re.match(full_path_old) and sigdata_re.match(full_path_new):
output = bb.siggen.compare_sigfiles(full_path_old, full_path_new)
if output:
print("\n=== The verbose changes of %s.do_%s:" % (pn, task))
# Format the output, the format is:
# {pn: task1, task2, ...}
if pn in depchanged:
depchanged[pn] = "%s %s" % (depchanged.get(pn), task)
depchanged[pn] = task
if len(depchanged) > 0:
print("\n=== Dependencies changed: (%s tasks)" % counter)
for k in depchanged.keys():
print(" %s: %s" % (k, depchanged[k]))
return counter
def main():
Print what will be done between the current and last builds:
1) Run "STAMPS_DIR=<path> bitbake -S recipe" to re-generate the stamps
2) Figure out what are newly added and changed, can't figure out
what are removed since we can't know the previous stamps
clearly, for example, if there are several builds, we can't know
which stamps the last build has used exactly.
3) Use bb.siggen.compare_sigfiles to diff the old and new stamps
parser = OptionParser(
version = "1.0",
usage = """%prog [options] [package ...]
print what will be done between the current and last builds, for example:
$ bitbake core-image-sato
# Edit the recipes
$ bitbake-whatchanged core-image-sato
The changes will be printed"
The amount of tasks is not accurate when the task is "do_build" since
it usually depends on other tasks.
The "nostamp" task is not included.
parser.add_option("-v", "--verbose", help = "print the verbose changes",
action = "store_true", dest = "verbose")
options, args = parser.parse_args(sys.argv)
verbose = options.verbose
if len(args) != 2:
parser.error("Incorrect number of arguments")
recipe = args[1]
# Get the STAMPS_DIR
print("Figuring out the STAMPS_DIR ...")
cmdline = "bitbake -e | sed -ne 's/^STAMPS_DIR=\"\(.*\)\"/\\1/p'"
stampsdir, err =
if not stampsdir:
print("ERROR: No STAMPS_DIR found for '%s'" % recipe, file=sys.stderr)
return 2
stampsdir = stampsdir.rstrip("\n")
if not os.path.isdir(stampsdir):
print("ERROR: stamps directory \"%s\" not found!" % stampsdir, file=sys.stderr)
return 2
# The new stamps dir
new_stampsdir = stampsdir + ".bbs"
if os.path.exists(new_stampsdir):
print("ERROR: %s already exists!" % new_stampsdir, file=sys.stderr)
return 2
# Generate the new stamps dir
print("Generating the new stamps ... (need several minutes)")
cmdline = "STAMPS_DIR=%s bitbake -S none %s" % (new_stampsdir, recipe)
# The "bitbake -S" may fail, not fatal error, the stamps will still
# be generated, this might be a bug of "bitbake -S".
except Exception as exc:
# The dict for the new and old stamps.
old_dict = gen_dict(stampsdir)
new_dict = gen_dict(new_stampsdir)
# Remove the same one from both stamps.
cnt_unchanged = 0
for k in new_dict.keys():
if k in old_dict:
cnt_unchanged += 1
# Re-construct the dict to easily find out what is added or changed.
# The dict format is:
# {pn_task: {pv: PV, pr: PR, path: PATH}}
new_recon = recon_dict(new_dict)
old_recon = recon_dict(old_dict)
del new_dict
del old_dict
# Figure out what are changed, the new_recon would be changed
# by the print_xxx function.
# Newly added
cnt_added = print_added(new_recon, old_recon)
# PV (including PE) and PR changed
# Let the bb.siggen handle them if verbose
cnt_rv = {}
if not verbose:
for i in ('pv', 'pr'):
cnt_rv[i] = print_vrchanged(new_recon, old_recon, i)
# Dependencies changed (use bitbake-diffsigs)
cnt_dep = print_depchanged(new_recon, old_recon, verbose)
total_changed = cnt_added + (cnt_rv.get('pv') or 0) + (cnt_rv.get('pr') or 0) + cnt_dep
print("\n=== Summary: (%s changed, %s unchanged)" % (total_changed, cnt_unchanged))
if verbose:
print("Newly added: %s\nDependencies changed: %s\n" % \
(cnt_added, cnt_dep))
print("Newly added: %s\nPV changed: %s\nPR changed: %s\nDependencies changed: %s\n" % \
(cnt_added, cnt_rv.get('pv') or 0, cnt_rv.get('pr') or 0, cnt_dep))
print("ERROR occurred!")
# Remove the newly generated stamps dir
if os.path.exists(new_stampsdir):
print("Removing the newly generated stamps dir ...")
if __name__ == "__main__":