comparison: openpkg/rc.func
openpkg/rc.func
- changeset 214
- 4d116d09a000
- child 427
- 71503088f51b
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| 1 ## | |
| 2 ## @l_prefix@/etc/rc.func -- Run-Command Helper Functions | |
| 3 ## Copyright (c) 2000-2007 OpenPKG Foundation e.V. <http://openpkg.net/> | |
| 4 ## Copyright (c) 2000-2007 Ralf S. Engelschall <http://engelschall.com/> | |
| 5 ## | |
| 6 ## Permission to use, copy, modify, and distribute this software for | |
| 7 ## any purpose with or without fee is hereby granted, provided that | |
| 8 ## the above copyright notice and this permission notice appear in all | |
| 9 ## copies. | |
| 10 ## | |
| 11 ## THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED | |
| 12 ## WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| 13 ## MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
| 14 ## IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR | |
| 15 ## CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 16 ## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 17 ## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | |
| 18 ## USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
| 19 ## ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
| 20 ## OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |
| 21 ## OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 22 ## SUCH DAMAGE. | |
| 23 ## | |
| 24 | |
| 25 ## | |
| 26 ## NOTICE: This script is a collection of reusable shell functions | |
| 27 ## running under GNU Bash during the execution of OpenPKG run-command | |
| 28 ## sections. | |
| 29 ## | |
| 30 | |
| 31 # | |
| 32 # rcMsg (display message) | |
| 33 # | |
| 34 # Usage: rcMsg [-e] [-w] <message> | |
| 35 # Example: rcMsg -e "invalid command line" | |
| 36 # Description: display a regular/warning/error message. | |
| 37 # | |
| 38 rcMsg () { | |
| 39 local prefix="rc:" | |
| 40 while [ $# -gt 0 ]; do | |
| 41 case $1 in | |
| 42 -e ) prefix="${prefix}ERROR:"; shift ;; | |
| 43 -w ) prefix="${prefix}WARNING:"; shift ;; | |
| 44 * ) break ;; | |
| 45 esac | |
| 46 done | |
| 47 echo "${prefix} $*" | |
| 48 return 0 | |
| 49 } | |
| 50 | |
| 51 # | |
| 52 # rcPath (manipulate colon-separated PATH-style variable) | |
| 53 # | |
| 54 # Usage: rcPath [-a] [-r] [-p] [-e] <var> <dir> [<dir> ...] | |
| 55 # Example: rcPath -a -e PATH /bin /sbin /usr/bin /usr/sbin /usr/ccs/bin | |
| 56 # Description: removes (-r) or adds (-a) by appending or prepending | |
| 57 # (-p) one or more directories <dir> (optionally have | |
| 58 # to be existing if -e is given) to a colon-separated | |
| 59 # PATH-style variable <var>. In case a directory already | |
| 60 # exists, it is first removed. | |
| 61 # | |
| 62 rcPath () { | |
| 63 local mode="" | |
| 64 local prepend=0 | |
| 65 local exists=0 | |
| 66 while [ $# -gt 0 ]; do | |
| 67 case $1 in | |
| 68 -a ) mode="add"; shift ;; | |
| 69 -r ) mode="remove"; shift ;; | |
| 70 -p ) prepend=1; shift ;; | |
| 71 -e ) exists=1; shift ;; | |
| 72 * ) break ;; | |
| 73 esac | |
| 74 done | |
| 75 local var="$1" | |
| 76 shift | |
| 77 if [ ".${mode}" = .add ]; then | |
| 78 local edit_del="" | |
| 79 local edit_add="" | |
| 80 local dir | |
| 81 for dir in "$@"; do | |
| 82 if [ ".${exists}" = .1 ] && [ ! -d "${dir}" ]; then | |
| 83 continue | |
| 84 fi | |
| 85 edit_del="${edit_del} -e 's;^${dir}\$;;' -e 's;^${dir}:;;'" | |
| 86 edit_del="${edit_del} -e 's;:${dir}:;:;' -e 's;:${dir}\$;;'" | |
| 87 if [ ".${prepend}" = .0 ]; then | |
| 88 edit_add="${edit_add} -e 's;\$;:${dir};'" | |
| 89 else | |
| 90 edit_add="-e 's;^;${dir}:;' ${edit_add}" | |
| 91 fi | |
| 92 done | |
| 93 if [ ".${edit_del}${edit_add}" != . ]; then | |
| 94 eval "${var}=\`echo \"\$${var}\" | sed ${edit_del} ${edit_add}\`" | |
| 95 fi | |
| 96 return 0 | |
| 97 elif [ ".${mode}" = .remove ]; then | |
| 98 local edit="" | |
| 99 local dir | |
| 100 for dir in "$@"; do | |
| 101 edit="${edit} -e 's;^${dir}\$;;' -e 's;^${dir}:;;'" | |
| 102 edit="${edit} -e 's;:${dir}:;:;' -e 's;:${dir}\$;;'" | |
| 103 done | |
| 104 eval "${var}=\`echo \"\$${var}\" | sed ${edit}\`" | |
| 105 return 0 | |
| 106 else | |
| 107 rcMsg -e "rcPath: neither add (-a) nor remove (-r) operation specified" | |
| 108 return 1 | |
| 109 fi | |
| 110 } | |
| 111 | |
| 112 # | |
| 113 # rcTmp (temporary file handling) | |
| 114 # | |
| 115 # Usage: rcTmp [-i] [-f [-n <name>]] [-k] | |
| 116 # Example: rcTmp -i; tmpfile=`rcTmp -f -n tmp`; ...; rcTmp -k | |
| 117 # Description: ??? | |
| 118 # | |
| 119 rcTmp () { | |
| 120 local mode="" | |
| 121 local name="" | |
| 122 while [ $# -gt 0 ]; do | |
| 123 case $1 in | |
| 124 -i ) mode="init"; shift ;; | |
| 125 -f ) mode="file"; shift ;; | |
| 126 -k ) mode="kill"; shift ;; | |
| 127 -n ) name="$2"; shift; shift ;; | |
| 128 * ) break ;; | |
| 129 esac | |
| 130 done | |
| 131 if [ ".${mode}" = .init ]; then | |
| 132 if [ ".${RC_TMPDIR}" = . ]; then | |
| 133 local i=0 | |
| 134 while [ ${i} -lt 10 ]; do | |
| 135 RC_TMPDIR="@l_prefix@/RPM/TMP/rc-`date '+%Y%m%d%H%M%S'`-$$" | |
| 136 (umask 022; mkdir ${RC_TMPDIR} >/dev/null 2>&1) && break | |
| 137 i=$((${i} + 1)) | |
| 138 sleep 1 | |
| 139 done | |
| 140 if [ ${i} -eq 10 ]; then | |
| 141 rcMsg -e "rcTmp: unable to establish secure temporary directory" 1>&2 | |
| 142 return 1 | |
| 143 fi | |
| 144 declare -r RC_TMPDIR | |
| 145 fi | |
| 146 return 0 | |
| 147 elif [ ".${mode}" = .file ]; then | |
| 148 echo "${RC_TMPDIR}/${name:-tmp}" | |
| 149 return 0 | |
| 150 elif [ ".${mode}" = .kill ]; then | |
| 151 if [ ".${RC_TMPDIR}" = . ]; then | |
| 152 rcMsg -e "rcTmp: no secure temporary directory known" | |
| 153 return 1 | |
| 154 else | |
| 155 rm -rf ${RC_TMPDIR} | |
| 156 return 0 | |
| 157 fi | |
| 158 else | |
| 159 rcMsg -e "rcTmp: neither init (-i), file (-f) nor kill (-k) operation specified" | |
| 160 return 1 | |
| 161 fi | |
| 162 } | |
| 163 | |
| 164 # | |
| 165 # rcService (check for service status enable/active/usable) | |
| 166 # | |
| 167 # Usage: rcService <pkg> <service> <val> | |
| 168 # Example: if rcService openssh enable yes; then ... | |
| 169 # Description: check <service> of package <pkg> against value <val>. | |
| 170 # <service> has to be one of "enable", "active" or "usable". | |
| 171 # <val> has to be either "no", "yes", or "unknown". | |
| 172 # | |
| 173 rcService () { | |
| 174 local pkg="`echo ${1} | sed -e 's;-;_;g'`" | |
| 175 local var="${pkg}_${2}" | |
| 176 local chk="${3}" | |
| 177 eval "local val=\$${var}" | |
| 178 if [ ".${val}" = . ]; then | |
| 179 eval `@l_prefix@/bin/openpkg rc 2>/dev/null --silent ${1} status || true` | |
| 180 eval "local val=\$${var}" | |
| 181 fi | |
| 182 if [ ".${val}" = ".${chk}" ]; then | |
| 183 return 0 | |
| 184 else | |
| 185 return 1 | |
| 186 fi | |
| 187 } | |
| 188 | |
| 189 # | |
| 190 # rcVarIsYes (check variable for positive value) | |
| 191 # | |
| 192 # Usage: rcVarIsYes <var> | |
| 193 # Example: if rcVarIsYes foo; then ... | |
| 194 # Description: check whether a variable <var> contains a positive | |
| 195 # value, i.e., the values "yes", "true", "on" or "1" in | |
| 196 # arbitrary lower or upper case. | |
| 197 # | |
| 198 rcVarIsYes () { | |
| 199 local var="${1}" | |
| 200 eval "local val=\"\$${var}\"" | |
| 201 case "${val}" in | |
| 202 [Yy][Ee][Ss] | [Tt][Rr][Uu][Ee] | [Oo][Nn] | 1 ) | |
| 203 return 0 | |
| 204 ;; | |
| 205 * ) | |
| 206 return 1 | |
| 207 ;; | |
| 208 esac | |
| 209 } | |
| 210 |
