182 lines
4.3 KiB
Bash
182 lines
4.3 KiB
Bash
#!/bin/bash
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set -e
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shopt -s nullglob
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# Shows the usage of this command to the user
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showUsage()
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{
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cat <<EOF
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Usage: $0 [OPTION] PATH
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This command starts all sysvinit scripts in the provided Nix profile and
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optionally deactivates all obsolete sysvinit scripts in the previous Nix
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profile generation.
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If the provided path is a file then it is considered a Nix expression that
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produces a Nix profile. If the provided path is a directory, then it is
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considered a pre-built Nix profile.
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Options:
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-p, --profile=NAME Name of the Nix profile that stores the sysvinit scripts
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(defaults to: processes)
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-o, --old-profile=PATH
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Path to the previously deployed Nix profile (by default,
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it gets auto detected)
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--runlevel=LEVEL Specifies which runlevel to activate (defaults to the
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runlevel of the system)
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--state-dir Changes the directory in which the state of the
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processes are stored
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--runtime-dir Changes the directory in which the PID files are stored
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--log-dir Changes the directory in which the log files are stored
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--tmp-dir Changes the directory in which temp files are stored
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--force-disable-user-change
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Forces to not create users, groups or change user
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permissions
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--show-trace Shows a trace of the output
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-h, --help Shows the usage of this command
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Environment:
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NIX_STATE_DIR Overrides the location of the Nix state directory
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NIXPROC_STATE_DIR Changes the directory in which the state of the
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processes is stored
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NIXPROC_RUNTIME_DIR Changes the directory in which the PID files are stored
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NIXPROC_LOG_DIR Changes the directory in which log files are stored
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NIXPROC_TMP_DIR Changes the directory in which temp files are stored
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NIXPROC_FORCE_DISABLE_USER_CHANGE
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Forces to not create users, groups or change user
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permissions
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EOF
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}
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# Parse valid argument options
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PARAMS=`@getopt@ -n $0 -o p:o:h -l profile:,old-profile:,state-dir:,runtime-dir:,log-dir:,tmp-dir:,force-disable-user-change,runlevel:,show-trace,help -- "$@"`
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if [ $? != 0 ]
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then
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showUsage
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exit 1
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fi
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# Evaluate valid options
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eval set -- "$PARAMS"
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while [ "$1" != "--" ]
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do
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case "$1" in
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-p|--profile)
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profile="$2"
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;;
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-o|--old-profile)
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oldProfilePath="$2"
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;;
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--state-dir)
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stateDirArg="--state-dir $2"
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;;
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--runtime-dir)
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runtimeDirArg="--runtime-dir $2"
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;;
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--log-dir)
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logDirArg="--log-dir $2"
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;;
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--tmp-dir)
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tmpDirArg="--tmp-dir $2"
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;;
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--force-disable-user-change)
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forceDisableUserChangeArg="--force-disable-user-change"
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;;
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--runlevel)
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runlevel="$2"
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;;
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--show-trace)
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showTraceArg="--show-trace"
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;;
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-h|--help)
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showUsage
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exit 0
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;;
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esac
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shift
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done
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shift
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path="$1"
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# Validate the given options
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source @commonchecks@
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checkNixStateDir
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checkProfile
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composeOldProfilePath
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source @sysvinitchecks@
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checkRunlevel
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# Build the environment with sysvinit scripts
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buildProfile sysvinit
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rcnew="$profilePath/etc/rc.d/rc${runlevel}.d"
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rcold="$oldProfilePath/etc/rc.d/rc${runlevel}.d"
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# Determine paths of old scripts
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oldscripts=()
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if [ -d "$rcold" ]
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then
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echo "Using previous Nix profile: $rcold" >&2
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for i in $(ls $rcold/S* | sort -r)
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do
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currentPath=$(readlink -f $i)
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oldscripts+=($currentPath)
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done
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fi
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# Determine paths of new scripts
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newscripts=()
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for i in $(ls $rcnew/S*)
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do
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currentPath=$(readlink -f $i)
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newscripts+=($currentPath)
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done
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# Create new groups and users
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createNewGroups
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createNewUsers
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# Stop obsolete scripts
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for i in ${oldscripts[@]}
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do
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if ! containsElement "$i" "${newscripts[@]}"
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then
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$i stop
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fi
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done
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# Start new scripts
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for i in ${newscripts[@]}
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do
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if ! containsElement "$i" "${oldscripts[@]}"
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then
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$i start
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fi
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done
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# Delete obsolete users and groups
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deleteObsoleteUsers
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deleteObsoleteGroups
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# Set new profile
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setNixProfile
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