| 1 |
#
|
| 2 |
# Polypkg frontend - reads a polypkg file and split it up into the various
|
| 3 |
# section files that get read by the backend(s).
|
| 4 |
#
|
| 5 |
# The output files from frontend() are:
|
| 6 |
#
|
| 7 |
# %files.run - required runtime files
|
| 8 |
# %files.doc - optional documentation files
|
| 9 |
# %files.dbg - optional debugging files
|
| 10 |
# %files.dev - optional developer files
|
| 11 |
#
|
| 12 |
# Lines in %files.* consist only of:
|
| 13 |
# [d|f] path mode owner group [v|-]
|
| 14 |
# s path mode owner group [v|-] target
|
| 15 |
#
|
| 16 |
# %post.$cpt - post-install script ($cpt component)
|
| 17 |
# %preun.$cpt - pre-uninstall script ($cpt component)
|
| 18 |
# %check.$cpt - pre-install check script ($cpt component)
|
| 19 |
#
|
| 20 |
# where $cpt is one of [ run doc dbg dev ]
|
| 21 |
#
|
| 22 |
# %service.$svc - service variables
|
| 23 |
#
|
| 24 |
# %depend - common package dependencies (one per line)
|
| 25 |
# %depend.$cpt - $cpt component dependencies
|
| 26 |
#
|
| 27 |
# Internal file output:
|
| 28 |
#
|
| 29 |
# frontend.tmp - result of [platform] prefix removal
|
| 30 |
#
|
| 31 |
# Each backend should examine these files and construct the right
|
| 32 |
# output package.
|
| 33 |
#
|
| 34 |
# The frontend also sets the variable $components to be the list of
|
| 35 |
# file components defined
|
| 36 |
#
|
| 37 |
# Each of the %files.* files contains entries of the form
|
| 38 |
# f mode owner group flags file-path
|
| 39 |
# d mode owner group flags directory-path
|
| 40 |
# s mode owner group flags symlink-path symlink-target
|
| 41 |
#
|
| 42 |
# The mode/owner/group may be the special symbol '-' which means
|
| 43 |
# that the platform should choose an appropriate preference based on the
|
| 44 |
# path (this is usually the 'root' or 'bin' user/group or mode 755 or 644.
|
| 45 |
#
|
| 46 |
# If the symlink-target is omitted, then a readlink is performed and
|
| 47 |
# any $pre_destdir prefix is removed.
|
| 48 |
#
|
| 49 |
# The flags is either - or a sequence of letters. The letters mean:
|
| 50 |
# v - the file is volatile, and expected to change content during use
|
| 51 |
#
|
| 52 |
|
| 53 |
pp_if_true=0
|
| 54 |
pp_if_false=0
|
| 55 |
|
| 56 |
#@ pp_frontend_init(): Set variables to their default values
|
| 57 |
pp_frontend_init () {
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| 58 |
name=
|
| 59 |
version=
|
| 60 |
summary="no summary"
|
| 61 |
description="No description"
|
| 62 |
copyright="(c) 2008 Quest Software, Inc. All rights reserved"
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| 63 |
|
| 64 |
#-- if the user supplied extra arguments on the command line
|
| 65 |
# then load them now.
|
| 66 |
pp_debug "pp_opt_init_vars=$pp_opt_init_vars"
|
| 67 |
test -n "$pp_opt_init_vars" && eval "$pp_opt_init_vars"
|
| 68 |
}
|
| 69 |
|
| 70 |
#@ pp_is_qualifier(): returns true if the arg is a qualifier expression
|
| 71 |
pp_is_qualifier () {
|
| 72 |
typeset ret
|
| 73 |
|
| 74 |
case "$1" in
|
| 75 |
"["*"]") ret=true;;
|
| 76 |
*) ret=false;;
|
| 77 |
esac
|
| 78 |
pp_debug "is_qualifier: $* -> $ret"
|
| 79 |
test $ret = true
|
| 80 |
}
|
| 81 |
|
| 82 |
#@ pp_eval_qualifier(): returns true if plat qual matches current plat
|
| 83 |
# Platform qualifiers match the following grammar
|
| 84 |
# '[' '!'? platform ( ',' platform )* ']'
|
| 85 |
# Returns true if the current platform is in the list of platforms.
|
| 86 |
# Starting with a '!' reverses the sense of the test.
|
| 87 |
# Special consequential qualifiers:
|
| 88 |
# [] - always false
|
| 89 |
# [!] - always true
|
| 90 |
pp_eval_qualifier () {
|
| 91 |
typeset ret
|
| 92 |
|
| 93 |
case "$1" in
|
| 94 |
"[!$pp_platform]"| \
|
| 95 |
"[!"*",$pp_platform]"| \
|
| 96 |
"[!$pp_platform,"*"]"| \
|
| 97 |
"[!"*",$pp_platform,"*"]") ret=false;;
|
| 98 |
"[!"*"]") ret=true;;
|
| 99 |
"[$pp_platform]"| \
|
| 100 |
"["*",$pp_platform]"| \
|
| 101 |
"[$pp_platform,"*"]"| \
|
| 102 |
"["*",$pp_platform,"*"]") ret=true;;
|
| 103 |
"["*"]") ret=false;;
|
| 104 |
*) pp_die "pp_eval_qualifier: bad qualifier '$1'"
|
| 105 |
esac
|
| 106 |
pp_debug "eval: $* -> $ret"
|
| 107 |
test true = $ret
|
| 108 |
}
|
| 109 |
|
| 110 |
#@ pp_frontend_if(): helper function for %if/%else/%endif logic
|
| 111 |
# Updates $pp_if_true and $pp_if_false variables which count
|
| 112 |
# the depth of true or false if/else branches. (Note that this
|
| 113 |
# counting scheme is unable to support an '%elif' construct,
|
| 114 |
# which really needs a stack.)
|
| 115 |
# The '%if' arguments can be by any one of:
|
| 116 |
# - 1, true, 0, false => explicit true or false
|
| 117 |
# - [qualifier] => see pp_eval_qualifier()
|
| 118 |
# - test-expr => given to the shell's test command
|
| 119 |
# The variables $pp_if_false and $pp_if_true are counters for if nesting.
|
| 120 |
# If $pp_if_false is non-zero then processing should be suppressed.
|
| 121 |
pp_frontend_if () {
|
| 122 |
typeset ifcmd ifret
|
| 123 |
ifcmd="$1";
|
| 124 |
shift
|
| 125 |
case "$ifcmd" in
|
| 126 |
%if) if test 0 = $pp_if_false; then
|
| 127 |
case "$*" in
|
| 128 |
true |1) pp_incr pp_if_true;;
|
| 129 |
false|0) pp_incr pp_if_false;;
|
| 130 |
*)
|
| 131 |
ifret=true
|
| 132 |
if pp_is_qualifier "$*"; then
|
| 133 |
pp_eval_qualifier "$*" || ifret=false
|
| 134 |
else
|
| 135 |
eval test "$@" || ifret=false
|
| 136 |
pp_debug "evaluating test $* -> $ifret"
|
| 137 |
fi
|
| 138 |
pp_incr pp_if_$ifret
|
| 139 |
;;
|
| 140 |
esac
|
| 141 |
else
|
| 142 |
pp_incr pp_if_false
|
| 143 |
fi;;
|
| 144 |
%else) test $# = 0 || pp_warn "ignoring argument to %else"
|
| 145 |
if test $pp_if_false -gt 1; then
|
| 146 |
: no change
|
| 147 |
elif test $pp_if_false = 1; then
|
| 148 |
pp_incr pp_if_true
|
| 149 |
pp_decr pp_if_false
|
| 150 |
elif test $pp_if_true = 0; then
|
| 151 |
pp_die "unmatched %else"
|
| 152 |
else
|
| 153 |
pp_incr pp_if_false
|
| 154 |
pp_decr pp_if_true
|
| 155 |
fi;;
|
| 156 |
%endif) test $# = 0 || pp_warn "ignoring argument to %endif"
|
| 157 |
if test $pp_if_false -gt 0; then
|
| 158 |
pp_decr pp_if_false
|
| 159 |
elif test $pp_if_true -gt 0; then
|
| 160 |
pp_decr pp_if_true
|
| 161 |
else
|
| 162 |
pp_die "unmatched %endif"
|
| 163 |
fi;;
|
| 164 |
*) pp_die "frontend_if: unknown cmd $ifcmd";;
|
| 165 |
esac
|
| 166 |
}
|
| 167 |
|
| 168 |
|
| 169 |
#@ pp_frontend()
|
| 170 |
# Processes a polypkg script on stdin. The output is
|
| 171 |
# a collection of output files named %*
|
| 172 |
# This function recognises section tags (eg %preun, %set, etc)
|
| 173 |
# and directs subsequent lines to the right output file.
|
| 174 |
# This function also
|
| 175 |
# - process [platform]/[!platform] tags on lines (eg [AIX])
|
| 176 |
# - removes comment lines
|
| 177 |
# - detects %set, %post, %preun etc sections
|
| 178 |
# - handles %if/%else/%endif logic
|
| 179 |
pp_frontend () {
|
| 180 |
typeset section newsection sed_word sed_ws line cpt svc
|
| 181 |
typeset section_enabled newsection_enabled s sed sed_candidate
|
| 182 |
|
| 183 |
section='%_initial'
|
| 184 |
newsection='%_initial'
|
| 185 |
section_enabled=:
|
| 186 |
newsection_enabled=:
|
| 187 |
sed_word="[a-zA-Z_][a-zA-Z_0-9]*"
|
| 188 |
sed_ws="[ ]"
|
| 189 |
|
| 190 |
#-- not all seds are created equal
|
| 191 |
sed=
|
| 192 |
for sed_candidate in ${PP_SED:-sed} /usr/xpg4/bin/sed; do
|
| 193 |
if echo 'foo' | $sed_candidate -ne '/^\(x\)*foo/p' | grep foo > /dev/null
|
| 194 |
then
|
| 195 |
sed="$sed_candidate"
|
| 196 |
break
|
| 197 |
fi
|
| 198 |
done
|
| 199 |
test -z "$sed" &&
|
| 200 |
pp_die "sed is broken on this system"
|
| 201 |
|
| 202 |
pp_lineno=0
|
| 203 |
|
| 204 |
#-- Note: this sed script should perform similar to pp_eval_qualifier()
|
| 205 |
$sed -e "/^#/s/.*//" \
|
| 206 |
-e "/^\\[!\\($sed_word,\\)*$pp_platform\\(,$sed_word\\)*\\]/s/.*//" \
|
| 207 |
-e "s/^\\[\\($sed_word,\\)*$pp_platform\\(,$sed_word\\)*\\]$sed_ws*//" \
|
| 208 |
-e "s/^\\[!\\($sed_word,\\)*$sed_word\\]$sed_ws*//" \
|
| 209 |
-e "/^\\[\\($sed_word,\\)*$sed_word\\]/s/.*//" \
|
| 210 |
-e "s/^%$sed_ws*/%/" \
|
| 211 |
-e "s/^$sed_ws/%\\\\&/" \
|
| 212 |
> $pp_wrkdir/frontend.tmp
|
| 213 |
|
| 214 |
#-- add an ignore section at the end to force section completion
|
| 215 |
echo '%ignore' >> $pp_wrkdir/frontend.tmp
|
| 216 |
echo >> $pp_wrkdir/frontend.tmp
|
| 217 |
|
| 218 |
exec 0<$pp_wrkdir/frontend.tmp
|
| 219 |
: > $pp_wrkdir/tmp
|
| 220 |
: > $pp_wrkdir/%fixup
|
| 221 |
while read -r line; do
|
| 222 |
#-- Convert leading double-% to single-%, or switch sections
|
| 223 |
pp_incr pp_lineno
|
| 224 |
|
| 225 |
pp_debug "line $pp_lineno: $line"
|
| 226 |
set -f
|
| 227 |
set -- $line
|
| 228 |
set +f
|
| 229 |
#pp_debug "line $pp_lineno: $*"
|
| 230 |
|
| 231 |
case "$line" in %*)
|
| 232 |
case "$1" in
|
| 233 |
%if|%else|%endif)
|
| 234 |
pp_debug "processing if directive $1"
|
| 235 |
pp_frontend_if "$@"
|
| 236 |
continue;;
|
| 237 |
esac
|
| 238 |
test 0 -ne $pp_if_false && continue # ignore lines %if'd out
|
| 239 |
|
| 240 |
case "$1" in
|
| 241 |
%set|%fixup|%ignore)
|
| 242 |
pp_debug "processing new section $1"
|
| 243 |
newsection="$1"; shift
|
| 244 |
newsection_enabled=:
|
| 245 |
if pp_is_qualifier "$1"; then
|
| 246 |
pp_eval_qualifier "$1" || newsection_enabled=false
|
| 247 |
shift
|
| 248 |
fi
|
| 249 |
test $# -eq 0 || pp_warn "ignoring extra arguments: $line"
|
| 250 |
continue;;
|
| 251 |
%post|%preun|%files|%depend|%check)
|
| 252 |
pp_debug "processing new component section $*"
|
| 253 |
s="$1"; shift
|
| 254 |
if test $# -eq 0 || pp_is_qualifier "$1"; then
|
| 255 |
cpt=run
|
| 256 |
else
|
| 257 |
cpt="$1"
|
| 258 |
shift
|
| 259 |
fi
|
| 260 |
newsection="$s.$cpt"
|
| 261 |
newsection_enabled=:
|
| 262 |
if test $# -gt 0 && pp_is_qualifier "$1"; then
|
| 263 |
pp_eval_qualifier "$1" || newsection_enabled=false
|
| 264 |
shift
|
| 265 |
fi
|
| 266 |
test $# -eq 0 ||
|
| 267 |
pp_warn "ignoring extra arguments: $line"
|
| 268 |
case "$cpt" in
|
| 269 |
run|dbg|doc|dev)
|
| 270 |
$newsection_enabled && pp_add_component "$cpt";;
|
| 271 |
x-*) :;; # useful for discarding stuff
|
| 272 |
*) pp_error "unknown component: $1 $cpt";;
|
| 273 |
esac
|
| 274 |
continue;;
|
| 275 |
%pp)
|
| 276 |
newsection="%ignore"; shift
|
| 277 |
if test $# -gt 0; then
|
| 278 |
pp_set_api_version "$1"
|
| 279 |
shift
|
| 280 |
else
|
| 281 |
pp_error "%pp: missing version"
|
| 282 |
fi
|
| 283 |
test $# -gt 0 &&
|
| 284 |
pp_error "%pp: too many arguments"
|
| 285 |
continue;;
|
| 286 |
%service)
|
| 287 |
pp_debug "processing new service section $1 $2"
|
| 288 |
s="$1"; shift
|
| 289 |
if test $# -eq 0 || pp_is_qualifier "$1"; then
|
| 290 |
pp_error "$s: service name required"
|
| 291 |
svc=unknown
|
| 292 |
else
|
| 293 |
svc="$1"; shift
|
| 294 |
fi
|
| 295 |
|
| 296 |
newsection="$s.$svc"
|
| 297 |
newsection_enabled=:
|
| 298 |
if test $# -gt 0 && pp_is_qualifier "$1"; then
|
| 299 |
pp_eval_qualifier "$1" || newsection_enabled=false
|
| 300 |
shift
|
| 301 |
fi
|
| 302 |
test $# -eq 0 ||
|
| 303 |
pp_warn "ignoring extra arguments: $line"
|
| 304 |
$newsection_enabled && pp_add_service "$svc"
|
| 305 |
continue;;
|
| 306 |
%\\*)
|
| 307 |
pp_debug "removing leading %\\"
|
| 308 |
line="${line#??}"
|
| 309 |
pp_debug " result is <$line>"
|
| 310 |
set -f
|
| 311 |
set -- $line
|
| 312 |
set +f
|
| 313 |
;;
|
| 314 |
%%*)
|
| 315 |
pp_debug "removing leading %"
|
| 316 |
line="${line#%}"
|
| 317 |
set -f
|
| 318 |
set -- $line
|
| 319 |
set +f
|
| 320 |
;;
|
| 321 |
%*)
|
| 322 |
pp_error "unknown section $1"
|
| 323 |
newsection='%ignore'
|
| 324 |
newsection_enabled=:
|
| 325 |
continue;;
|
| 326 |
esac;;
|
| 327 |
esac
|
| 328 |
|
| 329 |
test 0 != $pp_if_false && continue # ignore lines %if'd out
|
| 330 |
|
| 331 |
pp_debug "section=$section (enabled=$section_enabled) newsection=$newsection (enabled=$newsection_enabled)"
|
| 332 |
|
| 333 |
#-- finish processing a previous section
|
| 334 |
if test x"$newsection" != x""; then
|
| 335 |
$section_enabled && case "$section" in
|
| 336 |
%ignore|%_initial)
|
| 337 |
pp_debug "leaving ignored section $section"
|
| 338 |
: ignore # guaranteed to be the last section
|
| 339 |
;;
|
| 340 |
%set)
|
| 341 |
pp_debug "leaving $section: sourcing $pp_wrkdir/tmp"
|
| 342 |
$pp_opt_debug && cat $pp_wrkdir/tmp >&2
|
| 343 |
. $pp_wrkdir/tmp
|
| 344 |
: > $pp_wrkdir/tmp
|
| 345 |
;;
|
| 346 |
%preun.*|%post.*|%depend.*|%check.*|%service.*|%fixup)
|
| 347 |
pp_debug "leaving $section: substituting $pp_wrkdir/tmp"
|
| 348 |
# cat $pp_wrkdir/tmp >&2 # debugging
|
| 349 |
$pp_opt_debug && pp_substitute < $pp_wrkdir/tmp >&2
|
| 350 |
pp_substitute < $pp_wrkdir/tmp > $pp_wrkdir/tmp.sh
|
| 351 |
. $pp_wrkdir/tmp.sh >> $pp_wrkdir/$section ||
|
| 352 |
pp_error "shell error in $section"
|
| 353 |
rm -f $pp_wrkdir/tmp.sh
|
| 354 |
: > $pp_wrkdir/tmp
|
| 355 |
;;
|
| 356 |
esac
|
| 357 |
section="$newsection"
|
| 358 |
section_enabled="$newsection_enabled"
|
| 359 |
newsection=
|
| 360 |
fi
|
| 361 |
|
| 362 |
#-- ignore section content that is disabled
|
| 363 |
$section_enabled || continue
|
| 364 |
|
| 365 |
#-- process some lines in-place
|
| 366 |
case "$section" in
|
| 367 |
%_initial)
|
| 368 |
case "$line" in "") continue;; esac # ignore non-section blanks
|
| 369 |
pp_die "Ignoring text before % section introducer";;
|
| 370 |
%set|%preun.*|%post.*|%check.*|%service.*|%fixup)
|
| 371 |
pp_debug "appending line to \$pp_wrkdir/tmp"
|
| 372 |
echo "$line" >> $pp_wrkdir/tmp
|
| 373 |
;;
|
| 374 |
%files.*)
|
| 375 |
test $# -eq 0 && continue;
|
| 376 |
pp_files_expand "$@" >> $pp_wrkdir/$section
|
| 377 |
;;
|
| 378 |
%depend.*)
|
| 379 |
pp_debug "Adding explicit dependency $@ to $cpt"
|
| 380 |
echo "$@" >> $pp_wrkdir/%depend.$cpt
|
| 381 |
;;
|
| 382 |
esac
|
| 383 |
done
|
| 384 |
exec <&-
|
| 385 |
|
| 386 |
if test $pp_if_true != 0 -o $pp_if_false != 0; then
|
| 387 |
pp_die "missing %endif at end of file"
|
| 388 |
fi
|
| 389 |
|
| 390 |
pp_lineno=
|
| 391 |
|
| 392 |
pp_debug " name = $name"
|
| 393 |
pp_debug " version = $version"
|
| 394 |
pp_debug " summary = $summary"
|
| 395 |
pp_debug " description = $description"
|
| 396 |
pp_debug " copyright = $copyright"
|
| 397 |
pp_debug ""
|
| 398 |
pp_debug "\$pp_components: $pp_components"
|
| 399 |
pp_debug "\$pp_services: $pp_services"
|
| 400 |
}
|
| 401 |
|
| 402 |
#@ pp_set_api_version($v): change pp's behaviour to match the desired version
|
| 403 |
pp_set_api_version() {
|
| 404 |
case "$1" in
|
| 405 |
1.0) : ;;
|
| 406 |
*) pp_error "This version of polypackage is too old";;
|
| 407 |
esac
|
| 408 |
}
|
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