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author | Robin H. Johnson <robbat2@gentoo.org> | 2015-08-08 13:49:04 -0700 |
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committer | Robin H. Johnson <robbat2@gentoo.org> | 2015-08-08 17:38:18 -0700 |
commit | 56bd759df1d0c750a065b8c845e93d5dfa6b549d (patch) | |
tree | 3f91093cdb475e565ae857f1c5a7fd339e2d781e /eclass/portability.eclass | |
download | gentoo-56bd759df1d0c750a065b8c845e93d5dfa6b549d.tar.gz gentoo-56bd759df1d0c750a065b8c845e93d5dfa6b549d.tar.bz2 gentoo-56bd759df1d0c750a065b8c845e93d5dfa6b549d.zip |
proj/gentoo: Initial commit
This commit represents a new era for Gentoo:
Storing the gentoo-x86 tree in Git, as converted from CVS.
This commit is the start of the NEW history.
Any historical data is intended to be grafted onto this point.
Creation process:
1. Take final CVS checkout snapshot
2. Remove ALL ChangeLog* files
3. Transform all Manifests to thin
4. Remove empty Manifests
5. Convert all stale $Header$/$Id$ CVS keywords to non-expanded Git $Id$
5.1. Do not touch files with -kb/-ko keyword flags.
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
X-Thanks: Alec Warner <antarus@gentoo.org> - did the GSoC 2006 migration tests
X-Thanks: Robin H. Johnson <robbat2@gentoo.org> - infra guy, herding this project
X-Thanks: Nguyen Thai Ngoc Duy <pclouds@gentoo.org> - Former Gentoo developer, wrote Git features for the migration
X-Thanks: Brian Harring <ferringb@gentoo.org> - wrote much python to improve cvs2svn
X-Thanks: Rich Freeman <rich0@gentoo.org> - validation scripts
X-Thanks: Patrick Lauer <patrick@gentoo.org> - Gentoo dev, running new 2014 work in migration
X-Thanks: Michał Górny <mgorny@gentoo.org> - scripts, QA, nagging
X-Thanks: All of other Gentoo developers - many ideas and lots of paint on the bikeshed
Diffstat (limited to 'eclass/portability.eclass')
-rw-r--r-- | eclass/portability.eclass | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/eclass/portability.eclass b/eclass/portability.eclass new file mode 100644 index 000000000000..2e4e01d51432 --- /dev/null +++ b/eclass/portability.eclass @@ -0,0 +1,156 @@ +# Copyright 1999-2014 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 +# $Id$ + +# @ECLASS: portability.eclass +# @MAINTAINER: +# base-system@gentoo.org +# @AUTHOR: +# Diego Pettenò <flameeyes@gentoo.org> +# @BLURB: This eclass is created to avoid using non-portable GNUisms inside ebuilds + +if [[ -z ${_PORTABILITY_ECLASS} ]]; then +_PORTABILITY_ECLASS=1 + +# @FUNCTION: treecopy +# @USAGE: <orig1> [orig2 orig3 ....] <dest> +# @RETURN: +# @DESCRIPTION: +# mimic cp --parents copy, but working on BSD userland as well +treecopy() { + local dest=${!#} + local files_count=$# + + while (( $# > 1 )); do + local dirstruct=$(dirname "$1") + mkdir -p "${dest}/${dirstruct}" || die + cp -pPR "$1" "${dest}/${dirstruct}" || die + + shift + done +} + +# @FUNCTION: seq +# @USAGE: [min] <max> [step] +# @RETURN: sequence from min to max regardless of seq command being present on system +# @DESCRIPTION: +# compatibility function that mimes seq command if not available +seq() { + # First try `seq` + local p=$(type -P seq) + if [[ -n ${p} ]] ; then + "${p}" "$@" || die + return $? + fi + + local min max step + case $# in + 1) min=1 max=$1 step=1 ;; + 2) min=$1 max=$2 step=1 ;; + 3) min=$1 max=$3 step=$2 ;; + *) die "seq called with wrong number of arguments" ;; + esac + + # Then try `jot` + p=$(type -P jot) + if [[ -n ${p} ]] ; then + local reps + # BSD userland + if [[ ${step} != 0 ]] ; then + reps=$(( (max - min) / step + 1 )) + else + reps=0 + fi + + jot $reps $min $max $step || die + return $? + fi + + # Screw it, do the output ourselves + while :; do + [[ $max < $min && $step > 0 ]] && break + [[ $min < $max && $step < 0 ]] && break + echo $min + : $(( min += step )) + done + return 0 +} + +# @FUNCTION: dlopen_lib +# @USAGE: +# @RETURN: linker flag if needed +# @DESCRIPTION: +# Gets the linker flag to link to dlopen() function +dlopen_lib() { + # - Solaris needs nothing + # - Darwin needs nothing + # - *BSD needs nothing + # - Linux needs -ldl (glibc and uclibc) + # - Interix needs -ldl + case "${CHOST}" in + *-linux-gnu*|*-linux-uclibc|*-interix*) + echo "-ldl" + ;; + esac +} + +# @FUNCTION: get_bmake +# @USAGE: +# @RETURN: system version of make +# @DESCRIPTION: +# Gets the name of the BSD-ish make command (pmake from NetBSD) +# +# This will return make (provided by system packages) for BSD userlands, +# or bsdmake for Darwin userlands and pmake for the rest of userlands, +# both of which are provided by sys-devel/pmake package. +# +# Note: the bsdmake for Darwin userland is with compatibility with MacOSX +# default name. +get_bmake() { + if [[ ${USERLAND} == *BSD ]]; then + echo make + elif [[ ${USERLAND} == "Darwin" ]]; then + echo bsdmake + else + echo pmake + fi +} + +# @FUNCTION: get_mounts +# @USAGE: +# @RETURN: table of mounts in form "point node fs opts" +# @MAINTAINER: +# @DESCRIPTION: +# Portable method of getting mount names and points. +# Returns as "point node fs options" +# Remember to convert 040 back to a space. +get_mounts() { + local point= node= fs= opts= foo= + + # Linux has /proc/mounts which should always exist + if [[ $(uname -s) == "Linux" ]] ; then + while read node point fs opts foo ; do + echo "${point} ${node} ${fs} ${opts}" + done < /proc/mounts + return + fi + + # OK, pray we have a -p option that outputs mounts in fstab format + # using tabs as the seperator. + # Then pray that there are no tabs in the either. + # Currently only FreeBSD supports this and the other BSDs will + # have to be patched. + # Athough the BSD's may support /proc, they do NOT put \040 in place + # of the spaces and we should not force a /proc either. + local IFS=$'\t' + LC_ALL=C mount -p | while read node point fs foo ; do + opts=${fs#* } + fs=${fs%% *} + echo "${point// /\040} ${node// /\040} ${fs%% *} ${opts// /\040}" + done +} + +_dead_portability_user_funcs() { die "if you really need this, please file a bug for base-system@gentoo.org"; } +is-login-disabled() { _dead_portability_user_funcs; } + +fi |