v5 [PATCH 0/2] variable history and file inclusion tracking

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* v5 [PATCH 0/2] variable history and file inclusion tracking
@ 2012-10-08 18:50 Peter Seebach
  2012-10-08 18:50 ` [PATCH 1/2] data_smart.py and friends: Track file inclusions for bitbake -e Peter Seebach
  2012-10-08 18:50 ` [PATCH 2/2] data_smart.py and friends: Track variable history Peter Seebach
  0 siblings, 2 replies; 3+ messages in thread
From: Peter Seebach @ 2012-10-08 18:50 UTC (permalink / raw)
  To: bitbake-devel

This fixes one straight up bug (wrong kind of empty container literal)
and improves clarity of messages in a number of cases by reporting who
called finalize when a finalize() operation applies overrides. Fully
supporting that for oe-core would require a couple of tweaks in oe-core,
but this improves output regardless.

The following changes since commit 90fd57ee3cb2856c10bda1f5af4879d2b7cf2668:
  Cristiana Voicu (1):
        hob/imageconfigurationpage: a 'hob-image' appears listed in the base image combo box

are available in the git repository at:

  git://git.yoctoproject.org/poky-contrib seebs/incvar
  http://git.yoctoproject.org/cgit.cgi/poky-contrib/log/?h=seebs/incvar

Peter Seebach (2):
  data_smart.py and friends: Track file inclusions for bitbake -e
  data_smart.py and friends: Track variable history

 lib/bb/cooker.py                   |   15 ++-
 lib/bb/data.py                     |   34 +++++-
 lib/bb/data.pyc                    |  Bin 0 -> 14383 bytes
 lib/bb/data_smart.py               |  235 ++++++++++++++++++++++++++++++++----
 lib/bb/data_smart.pyc              |  Bin 0 -> 21279 bytes
 lib/bb/parse/__init__.py           |    3 +-
 lib/bb/parse/ast.py                |   25 +++-
 lib/bb/parse/parse_py/BBHandler.py |    6 +-
 8 files changed, 281 insertions(+), 37 deletions(-)
 create mode 100644 lib/bb/data.pyc
 create mode 100644 lib/bb/data_smart.pyc




^ permalink raw reply	[flat|nested] 3+ messages in thread

* [PATCH 1/2] data_smart.py and friends: Track file inclusions for bitbake -e
  2012-10-08 18:50 v5 [PATCH 0/2] variable history and file inclusion tracking Peter Seebach
@ 2012-10-08 18:50 ` Peter Seebach
  2012-10-08 18:50 ` [PATCH 2/2] data_smart.py and friends: Track variable history Peter Seebach
  1 sibling, 0 replies; 3+ messages in thread
From: Peter Seebach @ 2012-10-08 18:50 UTC (permalink / raw)
  To: bitbake-devel

This code adds inclusion history to bitbake -e output, showing
which files were included, in what order. This doesn't completely
resolve timing questions, because it doesn't show you which lines
of a file were processed before or after a given include, but it
does let you figure out what the path was by which a particular
file ended up in your build at all.

How it works: data_smart acquires a .history member, which is an
IncludeHistory; this represents the inclusion of a file and all its
inclusions, recursively. It provides methods for including files,
for finishing inclusion (done as an __exit__), and for
dumping the whole tree.

The parser is modified to run includes inside a with() to push
and pop the include filename.

Signed-off-by: Peter Seebach <peter.seebach@windriver.com>
---
 lib/bb/cooker.py         |    5 +++++
 lib/bb/data_smart.py     |   44 ++++++++++++++++++++++++++++++++++++++++++++
 lib/bb/parse/__init__.py |    3 ++-
 3 files changed, 51 insertions(+), 1 deletions(-)

diff --git a/lib/bb/cooker.py b/lib/bb/cooker.py
index 7ca1ffd..0c7c4e0 100644
--- a/lib/bb/cooker.py
+++ b/lib/bb/cooker.py
@@ -332,6 +332,11 @@ class BBCooker:
                 parselog.exception("Unable to read %s", fn)
                 raise
 
+        # Display history
+        with closing(StringIO()) as env:
+            self.configuration.data.history.emit(env)
+            logger.plain(env.getvalue())
+
         # emit variables and shell functions
         data.update_data(envdata)
         with closing(StringIO()) as env:
diff --git a/lib/bb/data_smart.py b/lib/bb/data_smart.py
index ec3c04e..864f527 100644
--- a/lib/bb/data_smart.py
+++ b/lib/bb/data_smart.py
@@ -114,6 +114,48 @@ class ExpansionError(Exception):
     def __str__(self):
         return self.msg
 
+class IncludeHistory(object):
+    def __init__(self, parent = None, filename = None):
+        self.parent = parent
+        if parent:
+            self.top = parent.top
+        else:
+            self.top = self
+        self.filename = filename or '[TOP LEVEL]'
+        self.children = []
+        self.current = self
+
+    def include(self, filename):
+        newfile = IncludeHistory(self.current, filename)
+        self.current.children.append(newfile)
+        self.current = newfile
+        return self
+
+    def __enter__(self):
+        pass
+
+    def __exit__(self, a, b, c):
+        if self.current.parent:
+            self.current = self.current.parent
+        else:
+            bb.warn("Include log: Tried to finish '%s' at top level." % filename)
+        return False
+
+    def emit(self, o, level = 0):
+        """Emit an include history file, and its children."""
+        if self != self.top:
+            spaces = "  " * level
+            o.write("# %s%s" % (spaces, self.filename))
+            if len(self.children) > 0:
+                o.write(" includes:")
+            o.write("\n")
+            level = level + 1
+        else:
+            o.write("#\n# INCLUDE HISTORY:\n#\n")
+        for child in self.children:
+            child.emit(o, level)
+
+
 class DataSmart(MutableMapping):
     def __init__(self, special = COWDictBase.copy(), seen = COWDictBase.copy() ):
         self.dict = {}
@@ -121,6 +163,7 @@ class DataSmart(MutableMapping):
         # cookie monster tribute
         self._special_values = special
         self._seen_overrides = seen
+        self.history = IncludeHistory()
 
         self.expand_cache = {}
 
@@ -414,6 +457,7 @@ class DataSmart(MutableMapping):
         # we really want this to be a DataSmart...
         data = DataSmart(seen=self._seen_overrides.copy(), special=self._special_values.copy())
         data.dict["_data"] = self.dict
+        data.history = copy.deepcopy(self.history)
 
         return data
 
diff --git a/lib/bb/parse/__init__.py b/lib/bb/parse/__init__.py
index 7b9c47e..b24673b 100644
--- a/lib/bb/parse/__init__.py
+++ b/lib/bb/parse/__init__.py
@@ -88,7 +88,8 @@ def handle(fn, data, include = 0):
     """Call the handler that is appropriate for this file"""
     for h in handlers:
         if h['supports'](fn, data):
-            return h['handle'](fn, data, include)
+            with data.history.include(fn):
+                return h['handle'](fn, data, include)
     raise ParseError("not a BitBake file", fn)
 
 def init(fn, data):
-- 
1.7.0.4




^ permalink raw reply related	[flat|nested] 3+ messages in thread

* [PATCH 2/2] data_smart.py and friends: Track variable history
  2012-10-08 18:50 v5 [PATCH 0/2] variable history and file inclusion tracking Peter Seebach
  2012-10-08 18:50 ` [PATCH 1/2] data_smart.py and friends: Track file inclusions for bitbake -e Peter Seebach
@ 2012-10-08 18:50 ` Peter Seebach
  1 sibling, 0 replies; 3+ messages in thread
From: Peter Seebach @ 2012-10-08 18:50 UTC (permalink / raw)
  To: bitbake-devel

This patch adds tracking of the history of variable assignments.
The changes are predominantly localized to data_smart.py and
parse/ast.py. BBHandler.py is changed to use d.setVar(...)
instead of data.setVar(..., d), and cooker.py and data.py are
altered to display the recorded data, and turn tracking on for
the bitbake -e case. The data.py update_data() function warns
DataSmart.finalize() to report the caller one further back up
the tree.

In general, d.setVar() does what it used to do. Optionally,
arguments describing an operation may be appended; if none
are present, the operation is implicitly ignored. If it's
not ignored, it will attempt to infer missing information
(name of variable, value assigned, file and line) by examining
the traceback. This slightly elaborate process eliminates a
category of problems in which the 'var' member of the keyword
arguments dict is set, and a positional argument corresponding
to 'var' is also set. It also makes calling much simpler for
the common cases.

The resulting output gives you a pretty good picture of what
values got set, and how they got set.

Signed-off-by: Peter Seebach <peter.seebach@windriver.com>
---
 lib/bb/cooker.py                   |   10 ++-
 lib/bb/data.py                     |   34 ++++++-
 lib/bb/data.pyc                    |  Bin 0 -> 14383 bytes
 lib/bb/data_smart.py               |  201 +++++++++++++++++++++++++++++++-----
 lib/bb/data_smart.pyc              |  Bin 0 -> 21279 bytes
 lib/bb/parse/ast.py                |   25 ++++-
 lib/bb/parse/parse_py/BBHandler.py |    6 +-
 7 files changed, 235 insertions(+), 41 deletions(-)
 create mode 100644 lib/bb/data.pyc
 create mode 100644 lib/bb/data_smart.pyc

diff --git a/lib/bb/cooker.py b/lib/bb/cooker.py
index 0c7c4e0..1e959c6 100644
--- a/lib/bb/cooker.py
+++ b/lib/bb/cooker.py
@@ -101,8 +101,10 @@ class BBCooker:
         # to use environment variables which have been cleaned from the
         # BitBake processes env
         self.savedenv = bb.data.init()
+        if self.configuration.show_environment:
+            self.savedenv.enableTracking()
         for k in savedenv:
-            self.savedenv.setVar(k, savedenv[k])
+            self.savedenv.setVar(k, savedenv[k], op = 'inherit', file = '[saved environment]')
 
         self.caches_array = []
         # Currently, only Image Creator hob ui needs extra cache.
@@ -177,6 +179,8 @@ class BBCooker:
 
     def initConfigurationData(self):
         self.configuration.data = bb.data.init()
+        if self.configuration.show_environment:
+            self.configuration.data.enableTracking()
 
         if not self.server_registration_cb:
             self.configuration.data.setVar("BB_WORKERCONTEXT", "1")
@@ -186,6 +190,8 @@ class BBCooker:
 
     def loadConfigurationData(self):
         self.configuration.data = bb.data.init()
+        if self.configuration.show_environment:
+            self.configuration.data.enableTracking()
 
         if not self.server_registration_cb:
             self.configuration.data.setVar("BB_WORKERCONTEXT", "1")
@@ -840,6 +846,8 @@ class BBCooker:
 
     def parseConfigurationFiles(self, prefiles, postfiles):
         data = self.configuration.data
+        if self.configuration.show_environment:
+            data.enableTracking()
         bb.parse.init_parser(data)
 
         # Parse files for loading *before* bitbake.conf and any includes
diff --git a/lib/bb/data.py b/lib/bb/data.py
index 9a32353..3c99762 100644
--- a/lib/bb/data.py
+++ b/lib/bb/data.py
@@ -166,9 +166,9 @@ def inheritFromOS(d, savedenv, permitted):
     for s in savedenv.keys():
         if s in permitted:
             try:
-                setVar(s, getVar(s, savedenv, True), d)
+                d.setVar(s, getVar(s, savedenv, True), op = 'inherit')
                 if s in exportlist:
-                    setVarFlag(s, "export", True, d)
+                    d.setVarFlag(s, "export", True, op = 'automatic')
             except TypeError:
                 pass
 
@@ -194,8 +194,34 @@ def emit_var(var, o=sys.__stdout__, d = init(), all=False):
         return 0
 
     if all:
+        history = d.history.variable(var)
         commentVal = re.sub('\n', '\n#', str(oval))
-        o.write('# %s=%s\n' % (var, commentVal))
+        if history:
+            if len(history) == 1:
+                o.write("#\n# $%s\n" % var)
+            else:
+                o.write("#\n# $%s [%d operations]\n" % (var, len(history)))
+            for event in history:
+                # o.write("# %s\n" % str(event))
+                if 'details' in event and event['details']:
+                    value = event['details']
+                else:
+                    value = event['value']
+                if 'func' in event:
+                    func = ' [%s]' % event['func']
+                else:
+                    func = ''
+                if 'flag' in event:
+                    flag = '[%s] ' % (event['flag'])
+                else:
+                    flag = ''
+                o.write("#   %s %s:%s%s\n#     %s\"%s\"\n" % (event['op'], event['file'], event['line'], func, flag, re.sub('\n', '\n#     ', value)))
+            if len(history) > 1:
+                o.write("# computed:\n")
+                o.write('#   "%s"\n' % (commentVal))
+        else:
+            o.write("#\n# $%s\n#   [no history recorded]\n#\n" % var)
+            o.write('#   "%s"\n' % (commentVal))
 
     if (var.find("-") != -1 or var.find(".") != -1 or var.find('{') != -1 or var.find('}') != -1 or var.find('+') != -1) and not all:
         return 0
@@ -273,7 +299,7 @@ def emit_func(func, o=sys.__stdout__, d = init()):
 
 def update_data(d):
     """Performs final steps upon the datastore, including application of overrides"""
-    d.finalize()
+    d.finalize(parent = True)
 
 def build_dependencies(key, keys, shelldeps, vardepvals, d):
     deps = set()
diff --git a/lib/bb/data.pyc b/lib/bb/data.pyc
new file mode 100644
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diff --git a/lib/bb/data_smart.py b/lib/bb/data_smart.py
index 864f527..03cf4c0 100644
--- a/lib/bb/data_smart.py
+++ b/lib/bb/data_smart.py
@@ -28,7 +28,7 @@ BitBake build tools.
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 # Based on functions from the base bb module, Copyright 2003 Holger Schurig
 
-import copy, re
+import copy, re, sys, traceback
 from collections import MutableMapping
 import logging
 import hashlib
@@ -43,6 +43,53 @@ __setvar_regexp__ = re.compile('(?P<base>.*?)(?P<keyword>_append|_prepend)(_(?P<
 __expand_var_regexp__ = re.compile(r"\${[^{}]+}")
 __expand_python_regexp__ = re.compile(r"\${@.+?}")
 
+def infer_caller_details(loginfo, parent = False):
+    """Save the caller the trouble of specifying everything."""
+    locals = None
+    # Save effort.
+    if 'ignore' in loginfo and loginfo['ignore']:
+        return
+    # If nothing was provided, mark this as possibly unneeded.
+    if not loginfo:
+        loginfo['ignore'] = True
+        return
+    if parent:
+        depth = 4
+    else:
+        depth = 3
+    # Infer caller's likely values for variable (var), loginfo (loginfo),
+    # and value (value), to reduce clutter in the rest of the code.
+    if 'variable' not in loginfo or 'value' not in loginfo:
+        try:
+            raise Exception
+        except Exception:
+            tb = sys.exc_info()[2]
+            if parent:
+                above = tb.tb_frame.f_back.f_back
+            else:
+                above = tb.tb_frame.f_back
+            locals = above.f_locals.items()
+            tb = None
+            above = None
+        value = None
+        variable = None
+        for k, v in locals:
+            if k == 'value':
+                value = v
+            if k == 'var':
+                variable = v
+        if 'value' not in loginfo:
+            loginfo['value'] = value
+        if 'variable' not in loginfo:
+            loginfo['variable'] = variable
+        locals = None
+    # Infer file/line/function from traceback
+    if 'file' not in loginfo:
+        file, line, func, text = traceback.extract_stack(limit = depth)[0]
+        loginfo['file'] = file
+        loginfo['line'] = line
+        if func not in loginfo:
+            loginfo['func'] = func
 
 class VariableParse:
     def __init__(self, varname, d, val = None):
@@ -115,15 +162,17 @@ class ExpansionError(Exception):
         return self.msg
 
 class IncludeHistory(object):
-    def __init__(self, parent = None, filename = None):
+    def __init__(self, parent = None, filename = None, datasmart = None):
         self.parent = parent
-        if parent:
+        if parent is not None:
             self.top = parent.top
         else:
             self.top = self
+        self.datasmart = datasmart
         self.filename = filename or '[TOP LEVEL]'
         self.children = []
         self.current = self
+        self.variables = {}
 
     def include(self, filename):
         newfile = IncludeHistory(self.current, filename)
@@ -131,6 +180,34 @@ class IncludeHistory(object):
         self.current = newfile
         return self
 
+    def record(self, *kwonly, **loginfo):
+        if len(kwonly) > 0:
+            raise TypeError
+        if not self.top.datasmart._tracking:
+            return
+        infer_caller_details(loginfo, parent = True)
+        if 'ignore' in loginfo and loginfo['ignore']:
+            return
+        if 'op' not in loginfo or not loginfo['op']:
+            loginfo['op'] = 'set'
+        if 'details' in loginfo and loginfo['details']:
+            loginfo['details'] = str(loginfo['details'])
+        if 'value' in loginfo and loginfo['value']:
+            loginfo['value'] = str(loginfo['value'])
+        if 'variable' not in loginfo or 'file' not in loginfo:
+            raise ValueError("record() missing variable or file.")
+        var = loginfo['variable']
+
+        if var not in self.variables:
+            self.variables[var] = []
+        self.variables[var].append(loginfo.copy())
+
+    def variable(self, var):
+        if var in self.variables:
+            return self.variables[var]
+        else:
+            return []
+
     def __enter__(self):
         pass
 
@@ -148,11 +225,11 @@ class IncludeHistory(object):
             o.write("# %s%s" % (spaces, self.filename))
             if len(self.children) > 0:
                 o.write(" includes:")
-            o.write("\n")
             level = level + 1
         else:
-            o.write("#\n# INCLUDE HISTORY:\n#\n")
+            o.write("#\n# INCLUDE HISTORY:\n#")
         for child in self.children:
+            o.write("\n")
             child.emit(o, level)
 
 
@@ -163,10 +240,17 @@ class DataSmart(MutableMapping):
         # cookie monster tribute
         self._special_values = special
         self._seen_overrides = seen
-        self.history = IncludeHistory()
+        self.history = IncludeHistory(datasmart = self)
+        self._tracking = False
 
         self.expand_cache = {}
 
+    def enableTracking(self):
+        self._tracking = True
+
+    def disableTracking(self):
+        self._tracking = False
+
     def expandWithRefs(self, s, varname):
 
         if not isinstance(s, basestring): # sanity check
@@ -200,10 +284,16 @@ class DataSmart(MutableMapping):
         return self.expandWithRefs(s, varname).value
 
 
-    def finalize(self):
+    def finalize(self, parent = False):
         """Performs final steps upon the datastore, including application of overrides"""
 
         overrides = (self.getVar("OVERRIDES", True) or "").split(":") or []
+        finalize_caller = {
+            'variable': 'ignored',
+            'value': 'ignored',
+            'op': 'finalize',
+        }
+        infer_caller_details(finalize_caller, parent = parent)
 
         #
         # Well let us see what breaks here. We used to iterate
@@ -220,6 +310,9 @@ class DataSmart(MutableMapping):
         # Then  we will handle _append and _prepend
         #
 
+        # We only want to report finalization once per variable overridden.
+        finalizes_reported = {}
+
         for o in overrides:
             # calculate '_'+override
             l = len(o) + 1
@@ -232,7 +325,19 @@ class DataSmart(MutableMapping):
             for var in vars:
                 name = var[:-l]
                 try:
-                    self.setVar(name, self.getVar(var, False))
+                    # Report only once, even if 
+                    if name not in finalizes_reported:
+                        finalizes_reported[name] = True
+                        finalize_caller['variable'] = name
+                        finalize_caller['value'] = 'was: ' + str(self.getVar(name, False))
+                        self.history.record(**finalize_caller)
+                    # Copy history of the override over.
+                    for event in self.history.variable(var):
+                        loginfo = event.copy()
+                        loginfo['variable'] = name
+                        loginfo['op'] = 'override[%s]:%s' % (o, loginfo['op'])
+                        self.history.record(**loginfo)
+                    self.setVar(name, self.getVar(var, False), op = 'finalize', file = 'override[%s]' % o, line = '')
                     self.delVar(var)
                 except Exception:
                     logger.info("Untracked delVar")
@@ -293,7 +398,9 @@ class DataSmart(MutableMapping):
         else:
             self.initVar(var)
 
-    def setVar(self, var, value):
+
+    def setVar(self, var, value, **loginfo):
+        infer_caller_details(loginfo)
         self.expand_cache = {}
         match  = __setvar_regexp__.match(var)
         if match and match.group("keyword") in __setvar_keyword__:
@@ -303,14 +410,21 @@ class DataSmart(MutableMapping):
             l = self.getVarFlag(base, keyword) or []
             l.append([value, override])
             self.setVarFlag(base, keyword, l)
-
+            # And cause that to be recorded:
+            loginfo['details'] = value
+            loginfo['variable'] = base
+            if override:
+                loginfo['op'] = '%s[%s]' % (keyword, override)
+            else:
+                loginfo['op'] = keyword
+            self.history.record(**loginfo)
             # todo make sure keyword is not __doc__ or __module__
             # pay the cookie monster
             try:
-                self._special_values[keyword].add( base )
+                self._special_values[keyword].add(base)
             except KeyError:
                 self._special_values[keyword] = set()
-                self._special_values[keyword].add( base )
+                self._special_values[keyword].add(base)
 
             return
 
@@ -327,6 +441,7 @@ class DataSmart(MutableMapping):
 
         # setting var
         self.dict[var]["_content"] = value
+        self.history.record(**loginfo)
 
     def getVar(self, var, expand=False, noweakdefault=False):
         value = self.getVarFlag(var, "_content", False, noweakdefault)
@@ -336,13 +451,15 @@ class DataSmart(MutableMapping):
             return self.expand(value, var)
         return value
 
-    def renameVar(self, key, newkey):
+    def renameVar(self, key, newkey, **loginfo):
         """
         Rename the variable key to newkey
         """
         val = self.getVar(key, 0)
         if val is not None:
-            self.setVar(newkey, val)
+            loginfo['op'] = 'rename'
+            loginfo['details'] = key
+            self.setVar(newkey, val, **loginfo)
 
         for i in ('_append', '_prepend'):
             src = self.getVarFlag(key, i)
@@ -359,15 +476,21 @@ class DataSmart(MutableMapping):
 
         self.delVar(key)
 
-    def appendVar(self, key, value):
+    def appendVar(self, key, value, **loginfo):
+        loginfo['details'] = value
         value = (self.getVar(key, False) or "") + value
-        self.setVar(key, value)
+        self.setVar(key, value, **loginfo)
 
-    def prependVar(self, key, value):
+    def prependVar(self, key, value, **loginfo):
+        loginfo['details'] = value
         value = value + (self.getVar(key, False) or "")
-        self.setVar(key, value)
+        self.setVar(key, value, **loginfo)
 
-    def delVar(self, var):
+    def delVar(self, var, **loginfo):
+        loginfo['value'] = ""
+        if not 'op' in loginfo:
+            loginfo['op'] = 'del'
+        self.history.record(**loginfo)
         self.expand_cache = {}
         self.dict[var] = {}
         if '_' in var:
@@ -375,7 +498,11 @@ class DataSmart(MutableMapping):
             if override and override in self._seen_overrides and var in self._seen_overrides[override]:
                 self._seen_overrides[override].remove(var)
 
-    def setVarFlag(self, var, flag, flagvalue):
+    def setVarFlag(self, var, flag, flagvalue, **loginfo):
+        infer_caller_details(loginfo)
+        loginfo['value'] = flagvalue
+        loginfo['flag'] = flag
+        self.history.record(**loginfo)
         if not var in self.dict:
             self._makeShadowCopy(var)
         self.dict[var][flag] = flagvalue
@@ -392,31 +519,44 @@ class DataSmart(MutableMapping):
             value = self.expand(value, None)
         return value
 
-    def delVarFlag(self, var, flag):
+    def delVarFlag(self, var, flag, **loginfo):
+        infer_caller_details(loginfo)
+        loginfo['value'] = ""
         local_var = self._findVar(var)
+        if 'op' not in loginfo:
+            loginfo['op'] = 'delFlag'
+        loginfo['flag'] = flag
         if not local_var:
             return
         if not var in self.dict:
             self._makeShadowCopy(var)
 
         if var in self.dict and flag in self.dict[var]:
+            self.history.record(**loginfo)
             del self.dict[var][flag]
 
-    def appendVarFlag(self, key, flag, value):
+    def appendVarFlag(self, key, flag, value, **loginfo):
+        infer_caller_details(loginfo)
+        loginfo['details'] = value
         value = (self.getVarFlag(key, flag, False) or "") + value
-        self.setVarFlag(key, flag, value)
+        self.setVarFlag(key, flag, value, **loginfo)
 
-    def prependVarFlag(self, key, flag, value):
+    def prependVarFlag(self, key, flag, value, **loginfo):
+        infer_caller_details(loginfo)
+        loginfo['details'] = value
         value = value + (self.getVarFlag(key, flag, False) or "")
-        self.setVarFlag(key, flag, value)
+        self.setVarFlag(key, flag, value, **loginfo)
 
-    def setVarFlags(self, var, flags):
+    def setVarFlags(self, var, flags, **loginfo):
+        infer_caller_details(loginfo)
         if not var in self.dict:
             self._makeShadowCopy(var)
 
         for i in flags:
             if i == "_content":
                 continue
+            loginfo['flag'] = i
+            self.history.record(**loginfo)
             self.dict[var][i] = flags[i]
 
     def getVarFlags(self, var):
@@ -434,12 +574,16 @@ class DataSmart(MutableMapping):
         return flags
 
 
-    def delVarFlags(self, var):
+    def delVarFlags(self, var, **loginfo):
+        infer_caller_details(loginfo)
+        if 'op' not in loginfo:
+            loginfo['op'] = 'delete flags'
         if not var in self.dict:
             self._makeShadowCopy(var)
 
         if var in self.dict:
             content = None
+            self.history.record(**loginfo)
 
             # try to save the content
             if "_content" in self.dict[var]:
@@ -449,7 +593,6 @@ class DataSmart(MutableMapping):
             else:
                 del self.dict[var]
 
-
     def createCopy(self):
         """
         Create a copy of self by setting _data to self
@@ -458,6 +601,8 @@ class DataSmart(MutableMapping):
         data = DataSmart(seen=self._seen_overrides.copy(), special=self._special_values.copy())
         data.dict["_data"] = self.dict
         data.history = copy.deepcopy(self.history)
+        data.history.datasmart = data
+        data._tracking = self._tracking
 
         return data
 
diff --git a/lib/bb/data_smart.pyc b/lib/bb/data_smart.pyc
new file mode 100644
index 0000000000000000000000000000000000000000..5477e2e3fc75013f2017aeda921bebaaa0aea693
GIT binary patch
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literal 0
HcmV?d00001

diff --git a/lib/bb/parse/ast.py b/lib/bb/parse/ast.py
index 4caa93e..cf37bc7 100644
--- a/lib/bb/parse/ast.py
+++ b/lib/bb/parse/ast.py
@@ -68,7 +68,7 @@ class ExportNode(AstNode):
         self.var = var
 
     def eval(self, data):
-        data.setVarFlag(self.var, "export", 1)
+        data.setVarFlag(self.var, "export", 1, op = 'exported')
 
 class DataNode(AstNode):
     """
@@ -90,33 +90,48 @@ class DataNode(AstNode):
     def eval(self, data):
         groupd = self.groupd
         key = groupd["var"]
+        loginfo = {
+            'variable': key,
+            'file': self.filename,
+            'line': self.lineno,
+        }
         if "exp" in groupd and groupd["exp"] != None:
-            data.setVarFlag(key, "export", 1)
+            data.setVarFlag(key, "export", 1, op = 'exported', **loginfo)
+        # The others all want this by default:
+        loginfo['details'] = groupd["value"]
+        op = None
         if "ques" in groupd and groupd["ques"] != None:
             val = self.getFunc(key, data)
+            op = "set?"
             if val == None:
                 val = groupd["value"]
         elif "colon" in groupd and groupd["colon"] != None:
             e = data.createCopy()
             bb.data.update_data(e)
+            op = "immediate"
             val = e.expand(groupd["value"], key + "[:=]")
         elif "append" in groupd and groupd["append"] != None:
+            op = "append"
             val = "%s %s" % ((self.getFunc(key, data) or ""), groupd["value"])
         elif "prepend" in groupd and groupd["prepend"] != None:
+            op = "prepend"
             val = "%s %s" % (groupd["value"], (self.getFunc(key, data) or ""))
         elif "postdot" in groupd and groupd["postdot"] != None:
+            op = "postdot"
             val = "%s%s" % ((self.getFunc(key, data) or ""), groupd["value"])
         elif "predot" in groupd and groupd["predot"] != None:
+            op = "predot"
             val = "%s%s" % (groupd["value"], (self.getFunc(key, data) or ""))
         else:
             val = groupd["value"]
 
+        loginfo['op'] = op
         if 'flag' in groupd and groupd['flag'] != None:
-            data.setVarFlag(key, groupd['flag'], val)
+            data.setVarFlag(key, groupd['flag'], val, **loginfo)
         elif groupd["lazyques"]:
-            data.setVarFlag(key, "defaultval", val)
+            data.setVarFlag(key, "defaultval", val, **loginfo)
         else:
-            data.setVar(key, val)
+            data.setVar(key, val, **loginfo)
 
 class MethodNode(AstNode):
     def __init__(self, filename, lineno, func_name, body):
diff --git a/lib/bb/parse/parse_py/BBHandler.py b/lib/bb/parse/parse_py/BBHandler.py
index 2e0647b..7c2d180 100644
--- a/lib/bb/parse/parse_py/BBHandler.py
+++ b/lib/bb/parse/parse_py/BBHandler.py
@@ -78,7 +78,7 @@ def inherit(files, fn, lineno, d):
         if not file in __inherit_cache:
             logger.log(logging.DEBUG -1, "BB %s:%d: inheriting %s", fn, lineno, file)
             __inherit_cache.append( file )
-            data.setVar('__inherit_cache', __inherit_cache, d)
+            d.setVar('__inherit_cache', __inherit_cache)
             include(fn, file, lineno, d, "inherit")
             __inherit_cache = d.getVar('__inherit_cache') or []
 
@@ -129,7 +129,7 @@ def handle(fn, d, include):
         __inherit_cache = d.getVar('__inherit_cache') or []
         if not fn in __inherit_cache:
             __inherit_cache.append(fn)
-            data.setVar('__inherit_cache', __inherit_cache, d)
+            d.setVar('__inherit_cache', __inherit_cache)
 
     if include != 0:
         oldfile = d.getVar('FILE')
@@ -146,7 +146,7 @@ def handle(fn, d, include):
 
     # DONE WITH PARSING... time to evaluate
     if ext != ".bbclass":
-        data.setVar('FILE', abs_fn, d)
+        d.setVar('FILE', abs_fn)
 
     statements.eval(d)
 
-- 
1.7.0.4




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-- links below jump to the message on this page --
2012-10-08 18:50 v5 [PATCH 0/2] variable history and file inclusion tracking Peter Seebach
2012-10-08 18:50 ` [PATCH 1/2] data_smart.py and friends: Track file inclusions for bitbake -e Peter Seebach
2012-10-08 18:50 ` [PATCH 2/2] data_smart.py and friends: Track variable history Peter Seebach

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