- Use Bash tests (i.e. [[ ]] instead of [ ])
- Use consistent newlines for if/while
- Drop unnecessary ; line terminators

Signed-off-by: Sam James <s...@gentoo.org>
---
 eclass/linux-info.eclass | 142 ++++++++++++++++++---------------------
 1 file changed, 66 insertions(+), 76 deletions(-)

diff --git a/eclass/linux-info.eclass b/eclass/linux-info.eclass
index 3e64cb9457a9..308286e515c5 100644
--- a/eclass/linux-info.eclass
+++ b/eclass/linux-info.eclass
@@ -140,13 +140,12 @@ KERNEL_DIR="${KERNEL_DIR:-${ROOT%/}/usr/src/linux}"
 # A read-only variable. It's a string containing the kernel object directory, 
will be KV_DIR unless
 # KBUILD_OUTPUT is used. This should be used for referencing .config.
 
-
 # @ECLASS_VARIABLE: SKIP_KERNEL_CHECK
 # @USER_VARIABLE
 # @DEFAULT_UNSET
 # @DESCRIPTION:
-# Do not check for kernel sources or a running kernel version 
-# Main use-case is for chroots
+# Do not check for kernel sources or a running kernel version.
+# Main use-case is for chroots.
 # This is a user flag and should under _no circumstances_ be set in the ebuild.
 : ${SKIP_KERNEL_CHECK:=""}
 
@@ -156,8 +155,7 @@ inherit toolchain-funcs
 
 EXPORT_FUNCTIONS pkg_setup
 
-# Bug fixes
-# fix to bug #75034
+# bug #75034
 case ${ARCH} in
        ppc)    BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
        ppc64)  BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
@@ -175,7 +173,7 @@ set_arch_to_pkgmgr() { export ARCH=$(tc-arch); }
 
 # @FUNCTION: qout
 # @DESCRIPTION:
-# qout <einfo | ewarn | eerror>  is a quiet call when EBUILD_PHASE should not 
have visible output.
+# qout <einfo | ewarn | eerror> is a quiet call when EBUILD_PHASE should not 
have visible output.
 qout() {
        local outputmsg type
        type=${1}
@@ -186,7 +184,7 @@ qout() {
                clean)   unset outputmsg;;
                preinst) unset outputmsg;;
        esac
-       [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
+       [[ -n "${outputmsg}" ]] && ${type} "${outputmsg}"
 }
 
 # @FUNCTION: qeinfo
@@ -196,14 +194,12 @@ qeinfo() { qout einfo "${@}" ; }
 
 # @FUNCTION: qewarn
 # @DESCRIPTION:
-# qewarn is a quiet ewarn call when EBUILD_PHASE
-# should not have visible output.
+# qewarn is a quiet ewarn call when EBUILD_PHASE should not have visible 
output.
 qewarn() { qout ewarn "${@}" ; }
 
 # @FUNCTION: qeerror
 # @DESCRIPTION:
-# qeerror is a quiet error call when EBUILD_PHASE
-# should not have visible output.
+# qeerror is a quiet error call when EBUILD_PHASE should not have visible 
output.
 qeerror() { qout eerror "${@}" ; }
 
 # File Functions
@@ -213,18 +209,17 @@ qeerror() { qout eerror "${@}" ; }
 # @USAGE: <variable> <configfile>
 # @RETURN: the value of the variable
 # @DESCRIPTION:
-# It detects the value of the variable defined in the file configfile. This is
-# done by including the configfile, and printing the variable with Make.
+# It detects the value of the variable defined in the file 'configfile'. This 
is
+# done by including the 'configfile', and printing the variable with Make.
 # It WILL break if your makefile has missing dependencies!
 getfilevar() {
        local ERROR basefname basedname myARCH="${ARCH}"
        ERROR=0
 
-       [ -z "${1}" ] && ERROR=1
-       [ ! -f "${2}" ] && ERROR=1
+       [[ -z "${1}" ]] && ERROR=1
+       [[ ! -f "${2}" ]] && ERROR=1
 
-       if [ "${ERROR}" = 1 ]
-       then
+       if [[ "${ERROR}" = 1 ]]; then
                echo -e "\n"
                eerror "getfilevar requires 2 variables, with the second a 
valid file."
                eerror "   getfilevar <VARIABLE> <CONFIGFILE>"
@@ -250,7 +245,7 @@ getfilevar() {
 # @USAGE: <variable> <configfile>
 # @RETURN: the value of the variable
 # @DESCRIPTION:
-# It detects the value of the variable defined in the file configfile.
+# It detects the value of the variable defined in the file 'configfile'.
 # This is done with sed matching an expression only. If the variable is 
defined,
 # you will run into problems. See getfilevar for those cases.
 getfilevar_noexec() {
@@ -258,12 +253,11 @@ getfilevar_noexec() {
        ERROR=0
        mycat='cat'
 
-       [ -z "${1}" ] && ERROR=1
-       [ ! -f "${2}" ] && ERROR=1
-       [ "${2%.gz}" != "${2}" ] && mycat='zcat'
+       [[ -z "${1}" ]] && ERROR=1
+       [[ ! -f "${2}" ]] && ERROR=1
+       [[ "${2%.gz}" != "${2}" ]] && mycat='zcat'
 
-       if [ "${ERROR}" = 1 ]
-       then
+       if [[ "${ERROR}" = 1 ]]; then
                echo -e "\n"
                eerror "getfilevar_noexec requires 2 variables, with the second 
a valid file."
                eerror "   getfilevar_noexec <VARIABLE> <CONFIGFILE>"
@@ -293,7 +287,8 @@ _LINUX_CONFIG_EXISTS_DONE=
 # Helper funciton which returns an error before the function argument is run 
if no config exists
 linux_config_qa_check() {
        local f="$1"
-       if [ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]; then
+
+       if [[ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]]; then
                ewarn "QA: You called $f before any linux_config_exists!"
                ewarn "QA: The return value of $f will NOT guaranteed later!"
        fi
@@ -351,7 +346,6 @@ linux_config_path() {
 # This function verifies that the current kernel is configured (it checks 
against the existence of .config)
 # otherwise it dies.
 require_configured_kernel() {
-
        [[ -n ${SKIP_KERNEL_CHECK} ]] && return
 
        if ! use kernel_linux; then
@@ -365,6 +359,7 @@ require_configured_kernel() {
                qeerror "it points to the necessary object directory so that it 
might find .config."
                die "Kernel not configured; no .config found in ${KV_OUT_DIR}"
        fi
+
        get_version || die "Unable to determine configured kernel version"
 }
 
@@ -445,7 +440,7 @@ kernel_is() {
                die "${FUNCNAME}() called on non-Linux system, please fix the 
ebuild"
        fi
 
-       # if we haven't determined the version yet, we need to.
+       # If we haven't determined the version yet, we need to.
        linux-info_get_any_version
 
        # Now we can continue
@@ -459,7 +454,7 @@ kernel_is() {
          eq) operator="-eq"; shift;;
           *) operator="-eq";;
        esac
-       [[ $# -gt 3 ]] && die "Error in kernel-2_kernel_is(): too many 
parameters"
+       [[ $# -gt 3 ]] && die "Error in ${ECLASS}_${FUNCNAME}(): too many 
parameters"
 
        ver_test \
                "${KV_MAJOR:-0}.${KV_MINOR:-0}.${KV_PATCH:-0}" \
@@ -488,7 +483,7 @@ get_makefile_extract_function() {
 
 # @ECLASS_VARIABLE: get_version_warning_done
 # @INTERNAL
-# @DESCRIPTION: 
+# @DESCRIPTION:
 # Internal variable, so we know to only print the warning once.
 get_version_warning_done=
 
@@ -511,26 +506,25 @@ get_version() {
 
        [[ -n ${SKIP_KERNEL_CHECK} ]] && return
 
-       # no need to execute this twice assuming KV_FULL is populated.
-       # we can force by unsetting KV_FULL
-       [ -n "${KV_FULL}" ] && return 0
+       # No need to execute this twice assuming KV_FULL is populated.
+       # We can force by unsetting KV_FULL.
+       [[ -n "${KV_FULL}" ]] && return 0
 
-       # if we dont know KV_FULL, then we need too.
-       # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
+       # If we don't know KV_FULL, then we need to.
+       # Make sure KV_DIR isn't set since we need to work it out via 
KERNEL_DIR.
        unset KV_DIR
 
        # KV_DIR will contain the full path to the sources directory we should 
use
-       [ -z "${get_version_warning_done}" ] && \
+       [[ -z "${get_version_warning_done}" ]] && \
        qeinfo "Determining the location of the kernel source code"
-       [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
+       [[ -d "${KERNEL_DIR}" ]] && KV_DIR="${KERNEL_DIR}"
 
-       if [ -z "${KV_DIR}" ]
-       then
-               if [ -z "${get_version_warning_done}" ]; then
+       if [[ -z "${KV_DIR}" ]]; then
+               if [[ -z "${get_version_warning_done}" ]]; then
                        get_version_warning_done=1
                        qewarn "Unable to find kernel sources at ${KERNEL_DIR}"
                        #qeinfo "This package requires Linux sources."
-                       if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
+                       if [[ "${KERNEL_DIR}" == "/usr/src/linux" ]] ; then
                                qeinfo "Please make sure that ${KERNEL_DIR} 
points at your running kernel, "
                                qeinfo "(or the kernel you wish to build 
against)."
                                qeinfo "Alternatively, set the KERNEL_DIR 
environment variable to the kernel sources location"
@@ -542,22 +536,21 @@ get_version() {
        fi
 
        # See if the kernel dir is actually an output dir. #454294
-       if [ -z "${KBUILD_OUTPUT}" -a -L "${KERNEL_DIR}/source" ]; then
+       if [[ -z "${KBUILD_OUTPUT}" && -L "${KERNEL_DIR}/source" ]]; then
                KBUILD_OUTPUT=${KERNEL_DIR}
                KERNEL_DIR=$(readlink -f "${KERNEL_DIR}/source")
                KV_DIR=${KERNEL_DIR}
        fi
 
-       if [ -z "${get_version_warning_done}" ]; then
+       if [[ -z "${get_version_warning_done}" ]]; then
                qeinfo "Found kernel source directory:"
                qeinfo "    ${KV_DIR}"
        fi
 
        kernel_get_makefile
 
-       if [[ ! -s ${KERNEL_MAKEFILE} ]]
-       then
-               if [ -z "${get_version_warning_done}" ]; then
+       if [[ ! -s ${KERNEL_MAKEFILE} ]]; then
+               if [[ -z "${get_version_warning_done}" ]]; then
                        get_version_warning_done=1
                        qeerror "Could not find a Makefile in the kernel source 
directory."
                        qeerror "Please ensure that ${KERNEL_DIR} points to a 
complete set of Linux sources"
@@ -567,8 +560,9 @@ get_version() {
 
        # OK so now we know our sources directory, but they might be using
        # KBUILD_OUTPUT, and we need this for .config and localversions-*
-       # so we better find it eh?
-       # do we pass KBUILD_OUTPUT on the CLI?
+       # so we better find it, eh?
+       #
+       # Do we pass KBUILD_OUTPUT on the CLI?
        local OUTPUT_DIR=${KBUILD_OUTPUT}
 
        if [[ -z ${OUTPUT_DIR} ]]; then
@@ -579,17 +573,16 @@ get_version() {
                OUTPUT_DIR=$(${mkfunc} KBUILD_OUTPUT "${KERNEL_MAKEFILE}")
        fi
 
-       # And contrary to existing functions I feel we shouldn't trust the
+       # And contrary to existing functions, I feel we shouldn't trust the
        # directory name to find version information as this seems insane.
-       # So we parse ${KERNEL_MAKEFILE}.  
+       # So we parse ${KERNEL_MAKEFILE}.
        KV_MAJOR=$(getfilevar VERSION "${KERNEL_MAKEFILE}")
        KV_MINOR=$(getfilevar PATCHLEVEL "${KERNEL_MAKEFILE}")
        KV_PATCH=$(getfilevar SUBLEVEL "${KERNEL_MAKEFILE}")
        KV_EXTRA=$(getfilevar EXTRAVERSION "${KERNEL_MAKEFILE}")
 
-       if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
-       then
-               if [ -z "${get_version_warning_done}" ]; then
+       if [[ -z "${KV_MAJOR}" || -z "${KV_MINOR}" || -z "${KV_PATCH}" ]; then
+               if [[ -z "${get_version_warning_done}" ]]; then
                        get_version_warning_done=1
                        qeerror "Could not detect kernel version."
                        qeerror "Please ensure that ${KERNEL_DIR} points to a 
complete set of Linux sources."
@@ -597,9 +590,8 @@ get_version() {
                return 1
        fi
 
-       [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
-       if [ -n "${KV_OUT_DIR}" ];
-       then
+       [[ -d "${OUTPUT_DIR}" ]] && KV_OUT_DIR="${OUTPUT_DIR}"
+       if [[ -n "${KV_OUT_DIR}" ]]; then
                qeinfo "Found kernel object directory:"
                qeinfo "    ${KV_OUT_DIR}"
        fi
@@ -609,9 +601,9 @@ get_version() {
        # Grab the kernel release from the output directory.
        # TODO: we MUST detect kernel.release being out of date, and 'return 1' 
from
        # this function.
-       if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
+       if [[ -s "${KV_OUT_DIR}"/include/config/kernel.release ]]; then
                KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
-       elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
+       elif [[ -s "${KV_OUT_DIR}"/.kernelrelease ]]; then
                KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
        else
                KV_LOCAL=
@@ -624,13 +616,13 @@ get_version() {
        # Clear out KV_LOCAL in that case.
        # TODO: this does not detect a change in the localversion part between
        # kernel.release and the value that would be generated.
-       if [ "$KV_LOCAL" = "$tmplocal" ]; then
+       if [[ "${KV_LOCAL}" = "${tmplocal}" ]]; then
                KV_LOCAL=
        else
-               KV_LOCAL=$tmplocal
+               KV_LOCAL=${tmplocal}
        fi
 
-       # and in newer versions we can also pull LOCALVERSION if it is set.
+       # and in newer versions, we can also pull LOCALVERSION if it is set.
        # but before we do this, we need to find if we use a different object 
directory.
        # This *WILL* break if the user is using localversions, but we assume 
it was
        # caught before this if they are.
@@ -718,7 +710,7 @@ check_kernel_built() {
                die "${FUNCNAME}() called on non-Linux system, please fix the 
ebuild"
        fi
 
-       # if we haven't determined the version yet, we need to
+       # If we haven't determined the version yet, we need to
 
        [[ -n ${SKIP_KERNEL_CHECK} ]] && return
 
@@ -731,8 +723,7 @@ check_kernel_built() {
                versionh_path="include/linux/version.h"
        fi
 
-       if [ ! -f "${KV_OUT_DIR}/${versionh_path}" ]
-       then
+       if [[ ! -f "${KV_OUT_DIR}/${versionh_path}" ]]; then
                eerror "These sources have not yet been prepared."
                eerror "We cannot build against an unprepared tree."
                eerror "To resolve this, please type the following:"
@@ -754,7 +745,7 @@ check_modules_supported() {
                die "${FUNCNAME}() called on non-Linux system, please fix the 
ebuild"
        fi
 
-       # if we haven't determined the version yet, we need too.
+       # If we haven't determined the version yet, we need to.
        require_configured_kernel
 
        if ! linux_chkconfig_builtin "MODULES"; then
@@ -774,12 +765,12 @@ check_extra_config() {
 
        local config negate die error reworkmodulenames
        local soft_errors_count=0 hard_errors_count=0 config_required=0
-       # store the value of the QA check, because otherwise we won't catch 
usages
+       # Store the value of the QA check, because otherwise we won't catch 
usages
        # after if check_extra_config is called AND other direct calls are done
        # later.
        local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
 
-       # if we haven't determined the version yet, we need to
+       # If we haven't determined the version yet, we need to.
        linux-info_get_any_version
 
        # Determine if we really need a .config. The only time when we don't 
need
@@ -820,9 +811,8 @@ check_extra_config() {
 
        ebegin "Checking for suitable kernel configuration options"
 
-       for config in ${CONFIG_CHECK}
-       do
-               # if we specify any fatal, ensure we honor them
+       for config in ${CONFIG_CHECK}; do
+               # If we specify any fatal, ensure we honor them
                die=1
                error=0
                negate=0
@@ -919,7 +909,7 @@ check_zlibinflate() {
                die "${FUNCNAME}() called on non-Linux system, please fix the 
ebuild"
        fi
 
-       # if we haven't determined the version yet, we need to
+       # If we haven't determined the version yet, we need to.
        require_configured_kernel
 
        # although I restructured this code - I really really really dont 
support it!
@@ -951,15 +941,15 @@ check_zlibinflate() {
 
        LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | 
cut -d : -f 1)"
        LINENO_START="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | grep -n 
'if \[' | tail -n 1 | cut -d : -f 1)"
-       (( LINENO_AMOUNT = $LINENO_END - $LINENO_START ))
-       (( LINENO_END = $LINENO_END - 1 ))
+       (( LINENO_AMOUNT = ${LINENO_END} - ${LINENO_START} ))
+       (( LINENO_END = ${LINENO_END} - 1 ))
        SYMBOLS="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | tail -n 
$LINENO_AMOUNT | sed -e 's/^.*\(CONFIG_[^\" ]*\).*/\1/g;')"
 
        # okay, now we have a list of symbols
        # we need to check each one in turn, to see whether it is set or not
-       for x in $SYMBOLS ; do
-               if [ "${!x}" = "y" ]; then
-                       # we have a winner!
+       for x in ${SYMBOLS} ; do
+               if [[ "${!x}" = "y" ]]; then
+                       # We have a winner!
                        einfo "${x} ensures zlib is linked into your kernel - 
excellent"
                        return 0
                fi
@@ -974,7 +964,7 @@ check_zlibinflate() {
        eerror "Please ensure that you enable at least one of these options:"
        eerror
 
-       for x in $SYMBOLS ; do
+       for x in ${SYMBOLS} ; do
                eerror "  * $x"
        done
 
@@ -997,7 +987,7 @@ linux-info_pkg_setup() {
 
        linux-info_get_any_version
 
-       [[ -n "${CONFIG_CHECK}" && -z ${CHECKCONFIG_DONOTHING} ]] && 
check_extra_config;
+       [[ -n "${CONFIG_CHECK}" && -z ${CHECKCONFIG_DONOTHING} ]] && 
check_extra_config
 }
 
 # @FUNCTION: kernel_get_makefile
-- 
2.39.0


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