From a10301f6a90567c2d2eca9306a4b7b752f58a9c2 Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Mon, 25 Nov 2013 22:59:39 +0000 Subject: bitbake: data/codeparser: Improve handling of contains functions One of the current frustrations with the sstate checksums is that code like base_contains('X', 'y',...) adds a full dependency on X and varies depend even on whitespace changes in X. This patch adds special handling of the contains functions to expand the first parameter and check for the flag specified by the second parameter (assuming its a string). The result is then appended to the value of the variable with a "Set" or "Unset" status. If the flag is added/removed, the stored variable value changes and hence the checksum changes. No dependency on X is added so it is free to change with regard to other flags or whitespace. This code is far from ideal, ideally we'd have properly typed variables however it fixes a major annoyance of the current checksums and is of enough value its worth adding in a stopgap solution. It shouldn't significantly restrict any propely typed variable implementation in future. (Bitbake rev: ed2d0a22a80299de0cfd377999950cf4b26c512e) Signed-off-by: Richard Purdie Signed-off-by: Christopher Larson Signed-off-by: Richard Purdie --- bitbake/lib/bb/codeparser.py | 14 +++++++++++--- bitbake/lib/bb/data.py | 18 ++++++++++++++++++ bitbake/lib/bb/data_smart.py | 4 ++++ 3 files changed, 33 insertions(+), 3 deletions(-) (limited to 'bitbake') diff --git a/bitbake/lib/bb/codeparser.py b/bitbake/lib/bb/codeparser.py index 1164815..6e34eff 100644 --- a/bitbake/lib/bb/codeparser.py +++ b/bitbake/lib/bb/codeparser.py @@ -1,6 +1,7 @@ import ast import codegen import logging +import collections import os.path import bb.utils, bb.data from itertools import chain @@ -35,7 +36,7 @@ def check_indent(codestr): class CodeParserCache(MultiProcessCache): cache_file_name = "bb_codeparser.dat" - CACHE_VERSION = 3 + CACHE_VERSION = 4 def __init__(self): MultiProcessCache.__init__(self) @@ -122,7 +123,11 @@ class PythonParser(): name = self.called_node_name(node.func) if name in self.getvars or name in self.containsfuncs: if isinstance(node.args[0], ast.Str): - self.references.add(node.args[0].s) + varname = node.args[0].s + if name in self.containsfuncs and isinstance(node.args[1], ast.Str): + self.contains[varname].add(node.args[1].s) + else: + self.references.add(node.args[0].s) else: self.warn(node.func, node.args[0]) elif name in self.execfuncs: @@ -148,6 +153,7 @@ class PythonParser(): def __init__(self, name, log): self.var_execs = set() + self.contains = collections.defaultdict(set) self.execs = set() self.references = set() self.log = BufferedLogger('BitBake.Data.%s' % name, logging.DEBUG, log) @@ -161,14 +167,15 @@ class PythonParser(): if h in codeparsercache.pythoncache: self.references = codeparsercache.pythoncache[h]["refs"] self.execs = codeparsercache.pythoncache[h]["execs"] + self.contains = codeparsercache.pythoncache[h]["contains"] return if h in codeparsercache.pythoncacheextras: self.references = codeparsercache.pythoncacheextras[h]["refs"] self.execs = codeparsercache.pythoncacheextras[h]["execs"] + self.contains = codeparsercache.pythoncacheextras[h]["contains"] return - code = compile(check_indent(str(node)), "", "exec", ast.PyCF_ONLY_AST) @@ -181,6 +188,7 @@ class PythonParser(): codeparsercache.pythoncacheextras[h] = {} codeparsercache.pythoncacheextras[h]["refs"] = self.references codeparsercache.pythoncacheextras[h]["execs"] = self.execs + codeparsercache.pythoncacheextras[h]["contains"] = self.contains class ShellParser(): def __init__(self, name, log): diff --git a/bitbake/lib/bb/data.py b/bitbake/lib/bb/data.py index bdd1e79..3d2c6a4 100644 --- a/bitbake/lib/bb/data.py +++ b/bitbake/lib/bb/data.py @@ -299,6 +299,21 @@ def build_dependencies(key, keys, shelldeps, varflagsexcl, d): vardeps = varflags.get("vardeps") value = d.getVar(key, False) + def handle_contains(value, contains, d): + newvalue = "" + for k in contains: + l = (d.getVar(k, True) or "").split() + for word in contains[k]: + if word in l: + newvalue += "\n%s{%s} = Set" % (k, word) + else: + newvalue += "\n%s{%s} = Unset" % (k, word) + if not newvalue: + return value + if not value: + return newvalue + return value + newvalue + if "vardepvalue" in varflags: value = varflags.get("vardepvalue") elif varflags.get("func"): @@ -309,6 +324,7 @@ def build_dependencies(key, keys, shelldeps, varflagsexcl, d): logger.warn("Variable %s contains tabs, please remove these (%s)" % (key, d.getVar("FILE", True))) parser.parse_python(parsedvar.value) deps = deps | parser.references + value = handle_contains(value, parser.contains, d) else: parsedvar = d.expandWithRefs(value, key) parser = bb.codeparser.ShellParser(key, logger) @@ -318,10 +334,12 @@ def build_dependencies(key, keys, shelldeps, varflagsexcl, d): parser.log.flush() deps = deps | parsedvar.references deps = deps | (keys & parser.execs) | (keys & parsedvar.execs) + value = handle_contains(value, parsedvar.contains, d) else: parser = d.expandWithRefs(value, key) deps |= parser.references deps = deps | (keys & parser.execs) + value = handle_contains(value, parser.contains, d) # Add varflags, assuming an exclusion list is set if varflagsexcl: diff --git a/bitbake/lib/bb/data_smart.py b/bitbake/lib/bb/data_smart.py index a1cbaba..9a6f767 100644 --- a/bitbake/lib/bb/data_smart.py +++ b/bitbake/lib/bb/data_smart.py @@ -35,6 +35,7 @@ import hashlib import bb, bb.codeparser from bb import utils from bb.COW import COWDictBase +import collections logger = logging.getLogger("BitBake.Data") @@ -88,6 +89,7 @@ class VariableParse: self.references = set() self.execs = set() + self.contains = collections.defaultdict(set) def var_sub(self, match): key = match.group()[2:-1] @@ -120,6 +122,8 @@ class VariableParse: self.references |= parser.references self.execs |= parser.execs + for k in parser.contains: + self.contains[k].update(parser.contains[k]) value = utils.better_eval(codeobj, DataContext(self.d)) return str(value) -- cgit v1.1