1 files changed, 378 insertions, 0 deletions

diff --git a/bitbake/lib/bb/parse/parse_py/BBHandler.py b/bitbake/lib/bb/parse/parse_py/BBHandler.py
new file mode 100644
index 0000000000..fac3e85b36
--- /dev/null
+++ b/bitbake/lib/bb/parse/parse_py/BBHandler.py
@@ -0,0 +1,378 @@
+#!/usr/bin/env python
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""class for handling .bb files
+
+   Reads a .bb file and obtains its metadata
+
+   Copyright (C) 2003, 2004  Chris Larson
+   Copyright (C) 2003, 2004  Phil Blundell
+   
+   This program is free software; you can redistribute it and/or modify it under
+   the terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 2 of the License, or (at your option) any later
+   version.
+   
+   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.""" 
+
+import re, bb, os, sys
+import bb.fetch, bb.build
+from bb import debug, data, fetch, fatal
+
+from ConfHandler import include, localpath, obtain, init
+from bb.parse import ParseError
+
+__func_start_regexp__    = re.compile( r"(((?P<py>python)|(?P<fr>fakeroot))\s*)*(?P<func>[\w\.\-\+\{\}\$]+)?\s*\(\s*\)\s*{$" )
+__inherit_regexp__       = re.compile( r"inherit\s+(.+)" )
+__export_func_regexp__   = re.compile( r"EXPORT_FUNCTIONS\s+(.+)" )
+__addtask_regexp__       = re.compile("addtask\s+(?P<func>\w+)\s*((before\s*(?P<before>((.*(?=after))|(.*))))|(after\s*(?P<after>((.*(?=before))|(.*)))))*")
+__addhandler_regexp__    = re.compile( r"addhandler\s+(.+)" )
+__def_regexp__           = re.compile( r"def\s+(\w+).*:" )
+__python_func_regexp__   = re.compile( r"(\s+.*)|(^$)" )
+__word__ = re.compile(r"\S+")
+
+__infunc__ = ""
+__inpython__ = False
+__body__   = []
+__bbpath_found__ = 0
+__classname__ = ""
+classes = [ None, ]
+
+def supports(fn, d):
+    localfn = localpath(fn, d)
+    return localfn[-3:] == ".bb" or localfn[-8:] == ".bbclass" or localfn[-4:] == ".inc"
+
+def inherit(files, d):
+    __inherit_cache = data.getVar('__inherit_cache', d) or ""
+    fn = ""
+    lineno = 0
+    for f in files:
+        file = data.expand(f, d)
+        if file[0] != "/" and file[-8:] != ".bbclass":
+            file = os.path.join('classes', '%s.bbclass' % file)
+
+        if not file in __inherit_cache.split():
+            debug(2, "BB %s:%d: inheriting %s" % (fn, lineno, file))
+            __inherit_cache += " %s" % file
+            include(fn, file, d)
+    data.setVar('__inherit_cache', __inherit_cache, d)
+
+
+def handle(fn, d, include = 0):
+    global __func_start_regexp__, __inherit_regexp__, __export_func_regexp__, __addtask_regexp__, __addhandler_regexp__, __infunc__, __body__, __bbpath_found__, __residue__
+    __body__ = []
+    __bbpath_found__ = 0
+    __infunc__ = ""
+    __classname__ = ""
+    __residue__ = []
+
+    if include == 0:
+        debug(2, "BB " + fn + ": handle(data)")
+    else:
+        debug(2, "BB " + fn + ": handle(data, include)")
+
+    (root, ext) = os.path.splitext(os.path.basename(fn))
+    init(d)
+
+    if ext == ".bbclass":
+        __classname__ = root
+        classes.append(__classname__)
+
+    if include != 0:
+        oldfile = data.getVar('FILE', d)
+    else:
+        oldfile = None
+
+    fn = obtain(fn, d)
+    bbpath = (data.getVar('BBPATH', d, 1) or '').split(':')
+    if not os.path.isabs(fn):
+        f = None
+        for p in bbpath:
+            p = data.expand(p, d)
+            j = os.path.join(p, fn)
+            if os.access(j, os.R_OK):
+                abs_fn = j
+                f = open(j, 'r')
+                break
+        if f is None:
+            raise IOError("file not found")
+    else:
+        f = open(fn,'r')
+        abs_fn = fn
+
+    if ext != ".bbclass":
+        bbpath.insert(0, os.path.dirname(abs_fn))
+        data.setVar('BBPATH', ":".join(bbpath), d)
+
+    if include:
+        bb.parse.mark_dependency(d, abs_fn)
+
+    if ext != ".bbclass":
+        data.setVar('FILE', fn, d)
+        i = (data.getVar("INHERIT", d, 1) or "").split()
+        if not "base" in i and __classname__ != "base":
+            i[0:0] = ["base"]
+        inherit(i, d)
+
+    lineno = 0
+    while 1:
+        lineno = lineno + 1
+        s = f.readline()
+        if not s: break
+        s = s.rstrip()
+        feeder(lineno, s, fn, d)
+    if __inpython__:
+        # add a blank line to close out any python definition
+        feeder(lineno + 1, "", fn, d)
+    if ext == ".bbclass":
+        classes.remove(__classname__)
+    else:
+        if include == 0:
+            data.expandKeys(d)
+            data.update_data(d)
+            anonqueue = data.getVar("__anonqueue", d, 1) or []
+            for anon in anonqueue:
+                data.setVar("__anonfunc", anon["content"], d)
+                data.setVarFlags("__anonfunc", anon["flags"], d)
+                from bb import build
+                try:
+                    t = data.getVar('T', d)
+                    data.setVar('T', '${TMPDIR}/', d)
+                    build.exec_func("__anonfunc", d)
+                    data.delVar('T', d)
+                    if t:
+                        data.setVar('T', t, d)
+                except Exception, e:
+                    bb.debug(1, "executing anonymous function: %s" % e)
+                    raise
+            data.delVar("__anonqueue", d)
+            data.delVar("__anonfunc", d)
+            set_additional_vars(fn, d, include)
+            data.update_data(d)
+
+            for var in data.keys(d):
+                if data.getVarFlag(var, 'handler', d):
+                    bb.event.register(data.getVar(var, d))
+                    continue
+
+                if not data.getVarFlag(var, 'task', d):
+                    continue
+
+                deps = data.getVarFlag(var, 'deps', d) or []
+                postdeps = data.getVarFlag(var, 'postdeps', d) or []
+                bb.build.add_task(var, deps, d)
+                for p in postdeps:
+                    pdeps = data.getVarFlag(p, 'deps', d) or []
+                    pdeps.append(var)
+                    data.setVarFlag(p, 'deps', pdeps, d)
+                    bb.build.add_task(p, pdeps, d)
+        bbpath.pop(0)
+    if oldfile:
+        bb.data.setVar("FILE", oldfile, d)
+    return d
+
+def feeder(lineno, s, fn, d):
+    global __func_start_regexp__, __inherit_regexp__, __export_func_regexp__, __addtask_regexp__, __addhandler_regexp__, __def_regexp__, __python_func_regexp__, __inpython__,__infunc__, __body__, __bbpath_found__, classes, bb, __residue__
+    if __infunc__:
+        if s == '}':
+            __body__.append('')
+            data.setVar(__infunc__, '\n'.join(__body__), d)
+            data.setVarFlag(__infunc__, "func", 1, d)
+            if __infunc__ == "__anonymous":
+                anonqueue = bb.data.getVar("__anonqueue", d) or []
+                anonitem = {}
+                anonitem["content"] = bb.data.getVar("__anonymous", d)
+                anonitem["flags"] = bb.data.getVarFlags("__anonymous", d)
+                anonqueue.append(anonitem)
+                bb.data.setVar("__anonqueue", anonqueue, d)
+                bb.data.delVarFlags("__anonymous", d)
+                bb.data.delVar("__anonymous", d)
+            __infunc__ = ""
+            __body__ = []
+        else:
+            __body__.append(s)
+        return
+
+    if __inpython__:
+        m = __python_func_regexp__.match(s)
+        if m:
+            __body__.append(s)
+            return
+        else:
+            text = '\n'.join(__body__)
+            comp = compile(text, "<bb>", "exec")
+            exec comp in __builtins__
+            __body__ = []
+            __inpython__ = False
+            funcs = data.getVar('__functions__', d) or ""
+            data.setVar('__functions__', "%s\n%s" % (funcs, text), d)
+#           fall through
+
+    if s == '' or s[0] == '#': return          # skip comments and empty lines
+
+    if s[-1] == '\\':
+        __residue__.append(s[:-1])
+        return
+
+    s = "".join(__residue__) + s
+    __residue__ = []
+
+    m = __func_start_regexp__.match(s)
+    if m:
+        __infunc__ = m.group("func") or "__anonymous"
+        key = __infunc__
+        if data.getVar(key, d):
+#           clean up old version of this piece of metadata, as its
+#           flags could cause problems
+            data.setVarFlag(key, 'python', None, d)
+            data.setVarFlag(key, 'fakeroot', None, d)
+        if m.group("py") is not None:
+            data.setVarFlag(key, "python", "1", d)
+        else:
+            data.delVarFlag(key, "python", d)
+        if m.group("fr") is not None:
+            data.setVarFlag(key, "fakeroot", "1", d)
+        else:
+            data.delVarFlag(key, "fakeroot", d)
+        return
+
+    m = __def_regexp__.match(s)
+    if m:
+        __body__.append(s)
+        __inpython__ = True
+        return
+
+    m = __export_func_regexp__.match(s)
+    if m:
+        fns = m.group(1)
+        n = __word__.findall(fns)
+        for f in n:
+            allvars = []
+            allvars.append(f)
+            allvars.append(classes[-1] + "_" + f)
+
+            vars = [[ allvars[0], allvars[1] ]]
+            if len(classes) > 1 and classes[-2] is not None:
+                allvars.append(classes[-2] + "_" + f)
+                vars = []
+                vars.append([allvars[2], allvars[1]])
+                vars.append([allvars[0], allvars[2]])
+
+            for (var, calledvar) in vars:
+                if data.getVar(var, d) and not data.getVarFlag(var, 'export_func', d):
+                    continue
+
+                if data.getVar(var, d):
+                    data.setVarFlag(var, 'python', None, d)
+                    data.setVarFlag(var, 'func', None, d)
+
+                for flag in [ "func", "python" ]:
+                    if data.getVarFlag(calledvar, flag, d):
+                        data.setVarFlag(var, flag, data.getVarFlag(calledvar, flag, d), d)
+                for flag in [ "dirs" ]:
+                    if data.getVarFlag(var, flag, d):
+                        data.setVarFlag(calledvar, flag, data.getVarFlag(var, flag, d), d)
+
+                if data.getVarFlag(calledvar, "python", d):
+                    data.setVar(var, "\tbb.build.exec_func('" + calledvar + "', d)\n", d)
+                else:
+                    data.setVar(var, "\t" + calledvar + "\n", d)
+                data.setVarFlag(var, 'export_func', '1', d)
+
+        return
+
+    m = __addtask_regexp__.match(s)
+    if m:
+        func = m.group("func")
+        before = m.group("before")
+        after = m.group("after")
+        if func is None:
+            return
+        var = "do_" + func
+
+        data.setVarFlag(var, "task", 1, d)
+
+        if after is not None:
+#           set up deps for function
+            data.setVarFlag(var, "deps", after.split(), d)
+        if before is not None:
+#           set up things that depend on this func
+            data.setVarFlag(var, "postdeps", before.split(), d)
+        return
+
+    m = __addhandler_regexp__.match(s)
+    if m:
+        fns = m.group(1)
+        hs = __word__.findall(fns)
+        for h in hs:
+            data.setVarFlag(h, "handler", 1, d)
+        return
+
+    m = __inherit_regexp__.match(s)
+    if m:
+
+        files = m.group(1)
+        n = __word__.findall(files)
+        inherit(n, d)
+        return
+
+    from bb.parse import ConfHandler
+    return ConfHandler.feeder(lineno, s, fn, d)
+
+__pkgsplit_cache__={}
+def vars_from_file(mypkg, d):
+    if not mypkg:
+        return (None, None, None)
+    if mypkg in __pkgsplit_cache__:
+        return __pkgsplit_cache__[mypkg]
+
+    myfile = os.path.splitext(os.path.basename(mypkg))
+    parts = myfile[0].split('_')
+    __pkgsplit_cache__[mypkg] = parts
+    exp = 3 - len(parts)
+    tmplist = []
+    while exp != 0:
+        exp -= 1
+        tmplist.append(None)
+    parts.extend(tmplist)
+    return parts
+
+def set_additional_vars(file, d, include):
+    """Deduce rest of variables, e.g. ${A} out of ${SRC_URI}"""
+
+    debug(2,"BB %s: set_additional_vars" % file)
+
+    src_uri = data.getVar('SRC_URI', d)
+    if not src_uri:
+        return
+    src_uri = data.expand(src_uri, d)
+
+    a = data.getVar('A', d)
+    if a:
+        a = data.expand(a, d).split()
+    else:
+        a = []
+
+    from bb import fetch
+    try:
+        fetch.init(src_uri.split(), d)
+    except fetch.NoMethodError:
+        pass
+    except bb.MalformedUrl,e:
+        raise ParseError("Unable to generate local paths for SRC_URI due to malformed uri: %s" % e)
+
+    a += fetch.localpaths(d)
+    del fetch
+    data.setVar('A', " ".join(a), d)
+
+
+# Add us to the handlers list
+from bb.parse import handlers
+handlers.append({'supports': supports, 'handle': handle, 'init': init})
+del handlers