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Diffstat (limited to 'scripts/bitbake-whatchanged')
| -rwxr-xr-x | scripts/bitbake-whatchanged | 339 |
1 files changed, 339 insertions, 0 deletions
diff --git a/scripts/bitbake-whatchanged b/scripts/bitbake-whatchanged new file mode 100755 index 0000000..af54d16 --- /dev/null +++ b/scripts/bitbake-whatchanged @@ -0,0 +1,339 @@ +#!/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 +# 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, 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") + sys.exit(1) + +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}} + Where: + 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] = tmp.group(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 = tmp.group('pv') + tmp.group('task') + tmp.group('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: + continue + 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 (tmp.group(1), tmp.group(2)) + + +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) + del(d_new[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) + else: + 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)) + del(d_new[k]) + + 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.%s:" % (pn, task)) + print('\n'.join(output)) + else: + # Format the output, the format is: + # {pn: task1, task2, ...} + if pn in depchanged: + depchanged[pn] = "%s %s" % (depchanged.get(pn), task) + else: + 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" + +Note: + 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") + else: + recipe = args[1] + + # Get the STAMPS_DIR + print("Figuring out the STAMPS_DIR ...") + cmdline = "bitbake -e | sed -ne 's/^STAMPS_DIR=\"\(.*\)\"/\\1/p'" + try: + stampsdir, err = bb.process.run(cmdline) + except: + raise + 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 + + try: + # Generate the new stamps dir + print("Generating the new stamps ... (need several minutes)") + cmdline = "STAMPS_DIR=%s bitbake -S none %s" % (new_stampsdir, recipe) + # FIXME + # The "bitbake -S" may fail, not fatal error, the stamps will still + # be generated, this might be a bug of "bitbake -S". + try: + bb.process.run(cmdline) + except Exception as exc: + print(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 + del(new_dict[k]) + del(old_dict[k]) + + # 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)) + else: + 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)) + except: + print("ERROR occurred!") + raise + finally: + # Remove the newly generated stamps dir + if os.path.exists(new_stampsdir): + print("Removing the newly generated stamps dir ...") + shutil.rmtree(new_stampsdir) + +if __name__ == "__main__": + sys.exit(main()) |