diff options
Diffstat (limited to 'functions')
| -rw-r--r-- | functions | 91 |
1 files changed, 59 insertions, 32 deletions
@@ -2,21 +2,18 @@ msg () { [ "${QUIET}" = "n" ] && echo $@; } err () { echo "ERROR: $@" >&2; } die () { echo "FATAL: $@" >&2; cleanup; exit 1; } -get_dirname () -{ +get_dirname() { # strip any trailing slash first... local dir="${1%/}" # then get the directory portion echo "${dir%/*}" } -get_basename () -{ +get_basename() { echo "${1##*/}" } -get_module_name () -{ +get_module_name() { #cleanup - remove .ko, replace - with _ local modname="${1%.gz}" modname=$(get_basename "${modname%.ko}") @@ -24,12 +21,11 @@ get_module_name () echo "$modname" } -## -# usage : in_array( $needle, $haystack ) -# return : 0 - found -# 1 - not found -## in_array() { + # Search for an element in an array. + # $1: needle + # ${@:2}: haystack + local needle=$1; shift [[ -z $1 ]] && return 1 # Not Found local item @@ -40,11 +36,16 @@ in_array() { } kmodinfo() { + # A wrapper around modinfo, which is aware of our $BASEDIR and + # $KERNELVERSION + # $@: args to modinfo + modinfo -b "$BASEDIR" -k "$KERNELVERSION" "$@" 2>/dev/null } -auto_modules () -{ +auto_modules() { + # Perform auto detection of modules via sysfs. + IFS=$'\n' read -rd '' -a mods < \ <(find /sys/devices -name modalias -exec sort -zu {} + | xargs -0 modprobe -aRS "$KERNELVERSION" | @@ -54,8 +55,10 @@ auto_modules () (( ${#mods[*]} )) } -all_modules () -{ +all_modules() { + # Add modules to the initcpio, filtered by grep. + # $@: filter arguments to grep + local -i count=0 while read -r -d '' mod; do (( ++count )) @@ -67,8 +70,11 @@ all_modules () (( count )) } -checked_modules () -{ +checked_modules() { + # Add modules to the initcpio, filtered by the list of autodetected + # modules. + # $@: arguments to all_modules + if [[ -s "$MODULE_FILE" ]]; then grep -xFf "$MODULE_FILE" <(all_modules "$@") return 1 @@ -77,8 +83,11 @@ checked_modules () fi } -add_full_dir () -{ +add_full_dir() { + # Add a directory and all its contents, recursively, to the initcpio image. + # No parsing is performed and the contents of the directory is added as is. + # $1: path to directory + if [[ -n $1 && -d $1 ]]; then for f in "$1"/*; do if [[ -d "$f" ]]; then @@ -90,16 +99,21 @@ add_full_dir () fi } -add_dir () -{ +add_dir() { + # Add a directory to the initcpio image. + # $1: absolute path of directory on image + if [[ ! -e "$TMPDIR/root/$1" ]]; then msg " adding dir ${1}" command install -dm755 "$TMPDIR/root/$1" fi } -add_symlink () -{ +add_symlink() { + # Add a symlink to the initcpio image. + # $1: pathname of symlink on image + # $2: absolute path to target of symlink + local fil dest dir if [[ -h $1 ]]; then fil="${1##$BASEDIR}" @@ -114,8 +128,12 @@ add_symlink () #fail quietly } -add_file() -{ +add_file() { + # Add a plain file to the initcpio image. No parsing is performed and only + # the singular file is added. + # $1: path to file + # $2: destination on initcpio (optional, defaults to same as source) + local file dest file=$1 @@ -139,9 +157,11 @@ add_file() } declare -a ADDED_MODULES -#modules are handled specially in order to enable autodetection -add_module () -{ +add_module() { + # Add a kernel module to the initcpio image. Dependencies will be + # discovered and added. + # $1: module name + local module path fw dep deps module=${1%.ko*} @@ -182,8 +202,12 @@ add_module () esac } -add_binary () -{ +add_binary() { + # add a binary file to the initcpio image. library dependencies will + # be discovered and added. + # $1: path to binary + # $2: destination on initcpio (optional, defaults to same as source) + local bin dest lib bin=$(type -P "$1") @@ -214,8 +238,11 @@ add_binary () esac } -parse_hook () -{ +parse_hook() { + # parse key global variables set by install hooks. This function is called + # prior to the start of hook processing, and after each hook's build + # function is run. + local mod bin fil for mod in ${MODULES}; do if [ -n "${mod}" ]; then |