1# 2# Writes build information to target filesystem on /etc/build 3# 4# Copyright (C) 2014 Intel Corporation 5# Author: Alejandro Enedino Hernandez Samaniego <alejandro.hernandez@intel.com> 6# 7# Licensed under the MIT license, see COPYING.MIT for details 8# 9# Usage: add INHERIT += "image-buildinfo" to your conf file 10# 11 12# Desired variables to display 13IMAGE_BUILDINFO_VARS ?= "DISTRO DISTRO_VERSION" 14 15# Desired location of the output file in the image. 16IMAGE_BUILDINFO_FILE ??= "${sysconfdir}/build" 17 18# From buildhistory.bbclass 19def image_buildinfo_outputvars(vars, d): 20 vars = vars.split() 21 ret = "" 22 for var in vars: 23 value = d.getVar(var) or "" 24 if (d.getVarFlag(var, 'type') == "list"): 25 value = oe.utils.squashspaces(value) 26 ret += "%s = %s\n" % (var, value) 27 return ret.rstrip('\n') 28 29# Gets git branch's status (clean or dirty) 30def get_layer_git_status(path): 31 import subprocess 32 try: 33 subprocess.check_output("""cd %s; export PSEUDO_UNLOAD=1; set -e; 34 git diff --quiet --no-ext-diff 35 git diff --quiet --no-ext-diff --cached""" % path, 36 shell=True, 37 stderr=subprocess.STDOUT) 38 return "" 39 except subprocess.CalledProcessError as ex: 40 # Silently treat errors as "modified", without checking for the 41 # (expected) return code 1 in a modified git repo. For example, we get 42 # output and a 129 return code when a layer isn't a git repo at all. 43 return "-- modified" 44 45# Returns layer revisions along with their respective status 46def get_layer_revs(d): 47 layers = (d.getVar("BBLAYERS") or "").split() 48 medadata_revs = ["%-17s = %s:%s %s" % (os.path.basename(i), \ 49 base_get_metadata_git_branch(i, None).strip(), \ 50 base_get_metadata_git_revision(i, None), \ 51 get_layer_git_status(i)) \ 52 for i in layers] 53 return '\n'.join(medadata_revs) 54 55def buildinfo_target(d): 56 # Get context 57 if d.getVar('BB_WORKERCONTEXT') != '1': 58 return "" 59 # Single and list variables to be read 60 vars = (d.getVar("IMAGE_BUILDINFO_VARS") or "") 61 return image_buildinfo_outputvars(vars, d) 62 63# Write build information to target filesystem 64python buildinfo () { 65 if not d.getVar('IMAGE_BUILDINFO_FILE'): 66 return 67 with open(d.expand('${IMAGE_ROOTFS}${IMAGE_BUILDINFO_FILE}'), 'w') as build: 68 build.writelines(( 69 '''----------------------- 70Build Configuration: | 71----------------------- 72''', 73 buildinfo_target(d), 74 ''' 75----------------------- 76Layer Revisions: | 77----------------------- 78''', 79 get_layer_revs(d), 80 ''' 81''' 82 )) 83} 84 85IMAGE_PREPROCESS_COMMAND += "buildinfo;" 86