[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] pygrub: further improve grub2 support
Round 2 (3?) in the arms race against the Debian Squeeze grub packages. * Improve syntax error messages to say what actually went wrong instead of giving an arbitrary and basically useless integer. * Improve handling of quoted values used with the "set" command, previously only the default variable was special cased to handle quoting. * Allow for extra options to the menuentry command, syntax now appears to be menuentry "TITLE" --option1 --option2 {...} Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx> Please include in 3.4 as well. diff -r 4152a3ce90a7 tools/pygrub/src/GrubConf.py --- a/tools/pygrub/src/GrubConf.py Thu Mar 11 17:40:35 2010 +0000 +++ b/tools/pygrub/src/GrubConf.py Mon Mar 15 08:51:07 2010 +0000 @@ -220,7 +220,6 @@ def _get_default(self): return self._default def _set_default(self, val): - val = val.strip("\"") if val == "saved": self._default = 0 else: @@ -300,7 +299,15 @@ if self.hasPassword(): self.setPasswordAccess(False) - + +def grub2_handle_set(arg): + (com,arg) = grub_split(arg,2) + com="set:" + com + m = re.match("([\"\'])(.*)\\1", arg) + if m is not None: + arg=m.group(2) + return (com,arg) + class Grub2Image(_GrubImage): def __init__(self, title, lines): _GrubImage.__init__(self, title, lines) @@ -309,9 +316,8 @@ (com, arg) = grub_exact_split(line, 2) if com == "set": - (com,arg) = grub_split(arg,2) - com="set:" + com - + (com,arg) = grub2_handle_set(arg) + if self.commands.has_key(com): if self.commands[com] is not None: setattr(self, self.commands[com], arg.strip()) @@ -373,17 +379,17 @@ continue # new image - title_match = re.match('^menuentry "(.*)" {', l) + title_match = re.match('^menuentry "(.*)" (.*){', l) if title_match: if img is not None: - raise RuntimeError, "syntax error 1 %d %s" % (len(img),img) + raise RuntimeError, "syntax error: cannot nest menuentry (%d %s)" % (len(img),img) img = [] title = title_match.group(1) continue if l.startswith("}"): if img is None: - raise RuntimeError, "syntax error 2 %d %s" % (len(img),img) + raise RuntimeError, "syntax error: closing brace without menuentry" self.add_image(Grub2Image(title, img)) img = None @@ -396,8 +402,7 @@ (com, arg) = grub_exact_split(l, 2) if com == "set": - (com,arg) = grub_split(arg,2) - com="set:" + com + (com,arg) = grub2_handle_set(arg) if self.commands.has_key(com): if self.commands[com] is not None: @@ -410,7 +415,7 @@ logging.warning("Unknown directive %s" %(com,)) if img is not None: - raise RuntimeError, "syntax error 3 %d %s" % (len(img),img) + raise RuntimeError, "syntax error: end of file with open menuentry(%d %s)" % (len(img),img) if self.hasPassword(): self.setPasswordAccess(False) _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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