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authorStefan Metzmacher <metze@samba.org>2011-06-21 17:46:36 +0200
committerStefan Metzmacher <metze@samba.org>2011-07-13 08:22:38 +0200
commit08a5b515a7e3a6385229a71d433a947811c8cc46 (patch)
treef596aee56b8cdb1e27225bcf8bc4922d38fe5c89 /dynconfig/wscript
parent9f0a70535c4cd3a06edfddbd330738b4d5d7e541 (diff)
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dynconfig: add SambaIndentedHelpFormatter in order to support \n in option help text
metze
Diffstat (limited to 'dynconfig/wscript')
-rwxr-xr-xdynconfig/wscript55
1 files changed, 54 insertions, 1 deletions
diff --git a/dynconfig/wscript b/dynconfig/wscript
index 524cbd8cef..ba1809dd95 100755
--- a/dynconfig/wscript
+++ b/dynconfig/wscript
@@ -1,8 +1,58 @@
#!/usr/bin/env python
-import string, Utils, Options, sys, Build, os, intltool
+import string, Utils, Options, sys, Build, os, intltool, optparse, textwrap
from samba_utils import EXPAND_VARIABLES, os_path_relpath
+class SambaIndentedHelpFormatter (optparse.IndentedHelpFormatter):
+ """Format help with indented section bodies.
+ """
+
+ def __init__(self,
+ indent_increment=2,
+ max_help_position=12,
+ width=None,
+ short_first=1):
+ optparse.IndentedHelpFormatter.__init__(
+ self, indent_increment, max_help_position, width, short_first)
+
+ def format_option(self, option):
+ # The help for each option consists of two parts:
+ # * the opt strings and metavars
+ # eg. ("-x", or "-fFILENAME, --file=FILENAME")
+ # * the user-supplied help string
+ # eg. ("turn on expert mode", "read data from FILENAME")
+ #
+ # If possible, we write both of these on the same line:
+ # -x turn on expert mode
+ #
+ # But if the opt string list is too long, we put the help
+ # string on a second line, indented to the same column it would
+ # start in if it fit on the first line.
+ # -fFILENAME, --file=FILENAME
+ # read data from FILENAME
+ result = []
+ opts = self.option_strings[option]
+ opt_width = self.help_position - self.current_indent - 2
+ if len(opts) > opt_width:
+ opts = "%*s%s\n" % (self.current_indent, "", opts)
+ indent_first = self.help_position
+ else: # start help on same line as opts
+ opts = "%*s%-*s " % (self.current_indent, "", opt_width, opts)
+ indent_first = 0
+ result.append(opts)
+ if option.help:
+ help_text = self.expand_default(option)
+ if string.find(help_text, '\n') == -1:
+ help_lines = textwrap.wrap(help_text, self.help_width)
+ else:
+ help_lines = help_text.splitlines()
+ result.append("%*s%s\n" % (indent_first, "", help_lines[0]))
+ result.extend(["%*s%s\n" % (self.help_position, "", line)
+ for line in help_lines[1:]])
+ elif opts[-1] != "\n":
+ result.append("\n")
+ return "".join(result)
+
# list of directory options to offer in configure
dir_options = {
'with-piddir' : [ '${PREFIX}/var/run', 'where to put pid files' ],
@@ -85,6 +135,9 @@ def get_varname(v):
def set_options(opt):
# get all the basic GNU options from the gnu_dirs tool
+ opt.parser.formatter = SambaIndentedHelpFormatter()
+ opt.parser.formatter.width=Utils.get_term_cols()
+
opt_group=opt.add_option_group('Samba-specific directory layout','')
opt_group.add_option('--enable-fhs',