1 # Copyright 1999-2018 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
4 # @ECLASS: eutils.eclass
6 # base-system@gentoo.org
7 # @BLURB: many extra (but common) functions that are used in ebuilds
9 # The eutils eclass contains a suite of functions that complement
10 # the ones that ebuild.sh already contain. The idea is that the functions
11 # are not required in all ebuilds but enough utilize them to have a common
12 # home rather than having multiple ebuilds implementing the same thing.
14 # Due to the nature of this eclass, some functions may have maintainers
15 # different from the overall eclass!
17 if [[ -z ${_EUTILS_ECLASS} ]]; then
20 # implicitly inherited (now split) eclasses
23 inherit desktop epatch estack ltprune multilib preserve-libs toolchain-funcs
30 # Proxy to ewarn for package managers that don't provide eqawarn and use the PM
31 # implementation if available. Reuses PORTAGE_ELOG_CLASSES as set by the dev
33 if ! declare -F eqawarn >/dev/null ; then
35 has qa ${PORTAGE_ELOG_CLASSES} && ewarn "$@"
40 # @FUNCTION: ecvs_clean
41 # @USAGE: [list of dirs]
43 # Remove CVS directories recursiveley. Useful when a source tarball contains
44 # internal CVS directories. Defaults to $PWD.
46 [[ $# -eq 0 ]] && set -- .
47 find "$@" -type d -name 'CVS' -prune -print0 | xargs -0 rm -rf
48 find "$@" -type f -name '.cvs*' -print0 | xargs -0 rm -rf
51 # @FUNCTION: esvn_clean
52 # @USAGE: [list of dirs]
54 # Remove .svn directories recursiveley. Useful when a source tarball contains
55 # internal Subversion directories. Defaults to $PWD.
57 [[ $# -eq 0 ]] && set -- .
58 find "$@" -type d -name '.svn' -prune -print0 | xargs -0 rm -rf
61 # @FUNCTION: egit_clean
62 # @USAGE: [list of dirs]
64 # Remove .git* directories/files recursiveley. Useful when a source tarball
65 # contains internal Git directories. Defaults to $PWD.
67 [[ $# -eq 0 ]] && set -- .
68 find "$@" -type d -name '.git*' -prune -print0 | xargs -0 rm -rf
74 # Cheap replacement for when debianutils (and thus mktemp)
75 # does not exist on the users system.
78 [[ $1 == -d ]] && exe="mkdir" && shift
81 if [[ -z ${topdir} ]] ; then
87 if ! type -P mktemp > /dev/null ; then
88 # system lacks `mktemp` so we have to fake it
90 while [[ -e ${tmp} ]] ; do
91 tmp=${topdir}/tmp.${RANDOM}.${RANDOM}.${RANDOM}
93 ${exe} "${tmp}" || ${exe} -p "${tmp}"
96 # the args here will give slightly wierd names on BSD,
97 # but should produce a usable file on all userlands
98 if [[ ${exe} == "touch" ]] ; then
99 TMPDIR="${topdir}" mktemp -t tmp.XXXXXXXXXX
101 TMPDIR="${topdir}" mktemp -dt tmp.XXXXXXXXXX
106 # @FUNCTION: edos2unix
107 # @USAGE: <file> [more files ...]
109 # A handy replacement for dos2unix, recode, fixdos, etc... This allows you
110 # to remove all of these text utilities from DEPEND variables because this
111 # is a script based solution. Just give it a list of files to convert and
112 # they will all be changed from the DOS CRLF format to the UNIX LF format.
114 [[ $# -eq 0 ]] && return 0
115 sed -i 's/\r$//' -- "$@" || die
118 # @FUNCTION: strip-linguas
119 # @USAGE: [<allow LINGUAS>|<-i|-u> <directories of .po files>]
121 # Make sure that LINGUAS only contains languages that
122 # a package can support. The first form allows you to
123 # specify a list of LINGUAS. The -i builds a list of po
124 # files found in all the directories and uses the
125 # intersection of the lists. The -u builds a list of po
126 # files found in all the directories and uses the union
130 if [[ $1 == "-i" ]] || [[ $1 == "-u" ]] ; then
132 ls=$(find "$1" -name '*.po' -exec basename {} .po ';'); shift
135 if [[ ${op} == "-u" ]] ; then
140 for f in $(find "$d" -name '*.po' -exec basename {} .po ';') ; do
141 if [[ ${op} == "-i" ]] ; then
142 has ${f} ${ls} && newls="${newls} ${f}"
144 has ${f} ${ls} || newls="${newls} ${f}"
155 for f in ${LINGUAS} ; do
156 if has ${f} ${ls} ; then
157 newls="${newls} ${f}"
163 && einfo "Sorry, but ${PN} does not support the LINGUAS:" ${nols}
164 export LINGUAS=${newls:1}
167 # @FUNCTION: make_wrapper
168 # @USAGE: <wrapper> <target> [chdir] [libpaths] [installpath]
170 # Create a shell wrapper script named wrapper in installpath
171 # (defaults to the bindir) to execute target (default of wrapper) by
172 # first optionally setting LD_LIBRARY_PATH to the colon-delimited
173 # libpaths followed by optionally changing directory to chdir.
175 local wrapper=$1 bin=$2 chdir=$3 libdir=$4 path=$5
176 local tmpwrapper=$(emktemp)
177 has "${EAPI:-0}" 0 1 2 && local EPREFIX=""
181 [[ -n ${chdir} ]] && printf 'cd "%s"\n' "${EPREFIX}${chdir}"
182 if [[ -n ${libdir} ]] ; then
184 if [[ ${CHOST} == *-darwin* ]] ; then
185 var=DYLD_LIBRARY_PATH
190 if [ "\${${var}+set}" = "set" ] ; then
191 export ${var}="\${${var}}:${EPREFIX}${libdir}"
193 export ${var}="${EPREFIX}${libdir}"
197 # We don't want to quote ${bin} so that people can pass complex
198 # things as ${bin} ... "./someprog --args"
199 printf 'exec %s "$@"\n' "${bin/#\//${EPREFIX}/}"
201 chmod go+rx "${tmpwrapper}"
203 if [[ -n ${path} ]] ; then
206 newexe "${tmpwrapper}" "${wrapper}"
209 newbin "${tmpwrapper}" "${wrapper}" || die
213 # @FUNCTION: path_exists
214 # @USAGE: [-a|-o] <paths>
216 # Check if the specified paths exist. Works for all types of paths
217 # (files/dirs/etc...). The -a and -o flags control the requirements
218 # of the paths. They correspond to "and" and "or" logic. So the -a
219 # flag means all the paths must exist while the -o flag means at least
220 # one of the paths must exist. The default behavior is "and". If no
221 # paths are specified, then the return value is "false".
224 [[ ${opt} == -[ao] ]] && shift || opt="-a"
226 # no paths -> return false
227 # same behavior as: [[ -e "" ]]
228 [[ $# -eq 0 ]] && return 1
237 -a) return $(( r != 0 )) ;;
238 -o) return $(( r == $# )) ;;
242 # @FUNCTION: use_if_iuse
245 # Return true if the given flag is in USE and IUSE.
247 # Note that this function should not be used in the global scope.
249 in_iuse $1 || return 1
253 # @FUNCTION: optfeature
254 # @USAGE: <short description> <package atom to match> [other atoms]
256 # Print out a message suggesting an optional package (or packages)
257 # not currently installed which provides the described functionality.
259 # The following snippet would suggest app-misc/foo for optional foo support,
260 # app-misc/bar or app-misc/baz[bar] for optional bar support
261 # and either both app-misc/a and app-misc/b or app-misc/c for alphabet support.
263 # optfeature "foo support" app-misc/foo
264 # optfeature "bar support" app-misc/bar app-misc/baz[bar]
265 # optfeature "alphabet support" "app-misc/a app-misc/b" app-misc/c
268 debug-print-function ${FUNCNAME} "$@"
275 if has_version "${j}"; then
282 if [[ ${flag} -eq 1 ]]; then
286 if [[ ${flag} -eq 0 ]]; then
292 msg="${msg:0: -4} for ${desc}"
304 # Sleep for the specified number of seconds (default of 5 seconds). Useful when
305 # printing a message the user should probably be reading and often used in
306 # conjunction with the ebeep function. If the EPAUSE_IGNORE env var is set,
307 # don't wait at all. Defined in EAPIs 0 1 and 2.
309 [[ -z ${EPAUSE_IGNORE} ]] && sleep ${1:-5}
313 # @USAGE: [number of beeps]
315 # Issue the specified number of beeps (default of 5 beeps). Useful when
316 # printing a message the user should probably be reading and often used in
317 # conjunction with the epause function. If the EBEEP_IGNORE env var is set,
318 # don't beep at all. Defined in EAPIs 0 1 and 2.
321 if [[ -z ${EBEEP_IGNORE} ]] ; then
322 for ((n=1 ; n <= ${1:-5} ; n++)) ; do
324 sleep 0.1 &>/dev/null ; sleep 0,1 &>/dev/null
335 ewarn "QA Notice: ebeep is not defined in EAPI=${EAPI}, please file a bug at https://bugs.gentoo.org"
339 ewarn "QA Notice: epause is not defined in EAPI=${EAPI}, please file a bug at https://bugs.gentoo.org"
349 # @USAGE: <USE flag> [true output] [false output] [true suffix] [false suffix]
351 # Proxy to declare usex for package managers or EAPIs that do not provide it
352 # and use the package manager implementation when available (i.e. EAPI >= 5).
353 # If USE flag is set, echo [true output][true suffix] (defaults to "yes"),
354 # otherwise echo [false output][false suffix] (defaults to "no").
355 usex() { use "$1" && echo "${2-yes}$4" || echo "${3-no}$5" ; } #382963
363 # @FUNCTION: einstalldocs
365 # Install documentation using DOCS and HTML_DOCS, in EAPIs that do not
366 # provide this function. When available (i.e., in EAPI 6 or later),
367 # the package manager implementation should be used instead.
369 # If DOCS is declared and non-empty, all files listed in it are
370 # installed. The files must exist, otherwise the function will fail.
371 # In EAPI 4 and 5, DOCS may specify directories as well; in earlier
372 # EAPIs using directories is unsupported.
374 # If DOCS is not declared, the files matching patterns given
375 # in the default EAPI implementation of src_install will be installed.
376 # If this is undesired, DOCS can be set to empty value to prevent any
377 # documentation from being installed.
379 # If HTML_DOCS is declared and non-empty, all files and/or directories
380 # listed in it are installed as HTML docs (using dohtml).
382 # Both DOCS and HTML_DOCS can either be an array or a whitespace-
383 # separated list. Whenever directories are allowed, '<directory>/.' may
384 # be specified in order to install all files within the directory
385 # without creating a sub-directory in docdir.
387 # Passing additional options to dodoc and dohtml is not supported.
388 # If you needed such a thing, you need to call those helpers explicitly.
390 debug-print-function ${FUNCNAME} "${@}"
393 has ${EAPI} 0 1 2 3 && dodoc_opts=
395 if ! declare -p DOCS &>/dev/null ; then
397 for d in README* ChangeLog AUTHORS NEWS TODO CHANGES \
398 THANKS BUGS FAQ CREDITS CHANGELOG ; do
399 if [[ -s ${d} ]] ; then
403 elif [[ $(declare -p DOCS) == "declare -a"* ]] ; then
404 if [[ ${DOCS[@]} ]] ; then
405 dodoc ${dodoc_opts} "${DOCS[@]}" || die
408 if [[ ${DOCS} ]] ; then
409 dodoc ${dodoc_opts} ${DOCS} || die
413 if [[ $(declare -p HTML_DOCS 2>/dev/null) == "declare -a"* ]] ; then
414 if [[ ${HTML_DOCS[@]} ]] ; then
415 dohtml -r "${HTML_DOCS[@]}" || die
418 if [[ ${HTML_DOCS} ]] ; then
419 dohtml -r ${HTML_DOCS} || die
429 # Determines whether the given flag is in IUSE. Strips IUSE default
430 # prefixes as necessary. In EAPIs where it is available (i.e., EAPI 6
431 # or later), the package manager implementation should be used instead.
433 # Note that this function must not be used in the global scope.
435 debug-print-function ${FUNCNAME} "${@}"
436 [[ ${#} -eq 1 ]] || die "Invalid args to ${FUNCNAME}()"
439 local liuse=( ${IUSE} )
441 has "${flag}" "${liuse[@]#[+-]}"