/usr/share/boost-build/src/options/help.jam is in libboost1.65-tools-dev 1.65.1+dfsg-0ubuntu5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 | # Copyright 2003 Dave Abrahams
# Copyright 2003, 2006 Rene Rivera
# Copyright 2003, 2006 Vladimir Prus
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
# This module is the plug-in handler for the --help and --help-.*
# command-line options
import modules ;
import assert ;
import doc : do-scan set-option set-output set-output-file print-help-usage print-help-top ;
import sequence ;
import set ;
import project ;
import print ;
import os ;
import version ;
import path ;
# List of possible modules, but which really aren't.
#
.not-modules =
boost-build bootstrap site-config test user-config
-tools allyourbase boost-base features python stlport testing unit-tests ;
# The help system options are parsed here and handed off to the doc
# module to translate into documentation requests and actions. The
# understood options are:
#
# --help-disable-<option>
# --help-doc-options
# --help-enable-<option>
# --help-internal
# --help-options
# --help-usage
# --help-output <type>
# --help-output-file <file>
# --help [<module-or-class>]
#
rule process (
command # The option.
: values * # The values, starting after the "=".
)
{
assert.result --help : MATCH ^(--help).* : $(command) ;
local did-help = ;
switch $(command)
{
case --help-internal :
local path-to-modules = [ modules.peek : BOOST_BUILD_PATH ] ;
path-to-modules ?= . ;
local possible-modules = [ GLOB $(path-to-modules) : *\\.jam ] ;
local not-modules = [ GLOB $(path-to-modules) : *$(.not-modules)\\.jam ] ;
local modules-to-list =
[ sequence.insertion-sort
[ set.difference $(possible-modules:D=:S=) : $(not-modules:D=:S=) ] ] ;
local modules-to-scan ;
for local m in $(modules-to-list)
{
local module-files = [ GLOB $(path-to-modules) : $(m)\\.jam ] ;
modules-to-scan += $(module-files[1]) ;
}
do-scan $(modules-to-scan) : print-help-all ;
did-help = true ;
case --help-enable-* :
local option = [ MATCH --help-enable-(.*) : $(command) ] ; option = $(option:L) ;
set-option $(option) : enabled ;
did-help = true ;
case --help-disable-* :
local option = [ MATCH --help-disable-(.*) : $(command) ] ; option = $(option:L) ;
set-option $(option) ;
did-help = true ;
case --help-output :
set-output $(values[1]) ;
did-help = true ;
case --help-output-file :
set-output-file $(values[1]) ;
did-help = true ;
case --help-doc-options :
local doc-module-spec = [ split-symbol doc ] ;
do-scan $(doc-module-spec[1]) : print-help-options ;
did-help = true ;
case --help-options :
print-help-usage ;
local BOOST_BUILD_PATH = [ modules.peek : BOOST_BUILD_PATH ] ;
local plugin-dir = options ;
local option-files = [ GLOB $(plugin-dir:D=$(BOOST_BUILD_PATH)) : *.jam ] ;
if $(option-files)
{
for local file in $(option-files)
{
do-scan $(file) : print-help-options ;
}
}
did-help = true ;
case --help :
local spec = $(values[1]) ;
if $(spec)
{
local spec-parts = [ split-symbol $(spec) ] ;
if $(spec-parts)
{
if $(spec-parts[2])
{
do-scan $(spec-parts[1]) : print-help-classes $(spec-parts[2]) ;
do-scan $(spec-parts[1]) : print-help-rules $(spec-parts[2]) ;
do-scan $(spec-parts[1]) : print-help-variables $(spec-parts[2]) ;
}
else
{
do-scan $(spec-parts[1]) : print-help-module ;
}
}
else
{
EXIT "Unrecognized help option '"$(command)" "$(spec)"'." ;
}
}
else
{
version.print ;
ECHO ;
# First print documentation from the current Jamfile, if any.
# FIXME: Generally, this duplication of project.jam logic is bad.
local names = [ modules.peek project : JAMROOT ]
[ modules.peek project : JAMFILE ] ;
local project-file = [ path.glob . : $(names) ] ;
if ! $(project-file)
{
project-file = [ path.glob-in-parents . : $(names) ] ;
}
for local p in $(project-file)
{
do-scan $(p) : print-help-project $(p) ;
}
# Next any user-config help.
local user-path = [ os.home-directories ] [ os.environ BOOST_BUILD_PATH ] ;
local user-config = [ GLOB $(user-path) : user-config.jam ] ;
if $(user-config)
{
do-scan $(user-config[1]) : print-help-config user $(user-config[1]) ;
}
# Next any site-config help.
local site-config = [ GLOB $(user-path) : site-config.jam ] ;
if $(site-config)
{
do-scan $(site-config[1]) : print-help-config site $(site-config[1]) ;
}
# Then the overall help.
print-help-top ;
}
did-help = true ;
}
if $(did-help)
{
UPDATE all ;
NOCARE all ;
}
return $(did-help) ;
}
# Split a reference to a symbol into module and symbol parts.
#
local rule split-symbol (
symbol # The symbol to split.
)
{
local path-to-modules = [ modules.peek : BOOST_BUILD_PATH ] ;
path-to-modules ?= . ;
local module-name = $(symbol) ;
local symbol-name = ;
local result = ;
while ! $(result)
{
local module-path = [ GLOB $(path-to-modules) : $(module-name)\\.jam ] ;
if $(module-path)
{
# The 'module-name' in fact refers to module. Return the full
# module path and a symbol within it. If 'symbol' passed to this
# rule is already module, 'symbol-name' will be empty. Otherwise,
# it's initialized on the previous loop iteration.
# In case there are several modules by this name,
# use the first one.
result = $(module-path[1]) $(symbol-name) ;
}
else
{
if ! $(module-name:S)
{
result = - ;
}
else
{
local next-symbol-part = [ MATCH ^.(.*) : $(module-name:S) ] ;
if $(symbol-name)
{
symbol-name = $(next-symbol-part).$(symbol-name) ;
}
else
{
symbol-name = $(next-symbol-part) ;
}
module-name = $(module-name:B) ;
}
}
}
if $(result) != -
{
return $(result) ;
}
}
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