128 lines
6.8 KiB
EmacsLisp
128 lines
6.8 KiB
EmacsLisp
;;; systemd-company.el --- company backend for systemd unit directives
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;; Copyright (C) 2015 Mark Oteiza <mvoteiza@udel.edu>
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;; Author: Mark Oteiza <mvoteiza@udel.edu>
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;; This program is free software; you can redistribute it and/or
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;; modify it under the terms of the GNU General Public License
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;; as published by the Free Software Foundation; either version 3
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;; of the License, or (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Code:
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(declare-function company-mode "company")
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(declare-function company-begin-backend "company")
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(declare-function company-grab-symbol "company")
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(defconst systemd-company-directives
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;; TODO: keep a script of sorts for generating this list. systemd
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;; source has a python script in tools/ for parsing the
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;; documentation xml for the unit directives.
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;;
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;; forcer on freenode threw together a curl monstrosity for achieving
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;; the same:
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;; curl -s http://www.freedesktop.org/software/systemd/man/systemd.directives.html | tr -d '\n' | sed 's/>/>\n/g' | sed -ne '/Unit directives/,/Options on the kernel/p' | sed -ne 's/.*<dt id="\([^-][^"]*\)=">.*/\1/p'
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'("Accept" "AccuracySec" "After" "Alias" "AllowIsolate" "Also"
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"AppArmorProfile" "AssertACPower" "AssertArchitecture"
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"AssertCapability" "AssertDirectoryNotEmpty" "AssertFileIsExecutable"
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"AssertFileNotEmpty" "AssertFirstBoot" "AssertHost"
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"AssertKernelCommandLine" "AssertNeedsUpdate" "AssertPathExists"
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"AssertPathExistsGlob" "AssertPathIsDirectory" "AssertPathIsMountPoint"
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"AssertPathIsReadWrite" "AssertPathIsSymbolicLink" "AssertSecurity"
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"AssertVirtualization" "Backlog" "Before" "BindIPv6Only" "BindToDevice"
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"BindsTo" "BlockIOAccounting" "BlockIODeviceWeight" "BlockIOReadBandwidth"
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"BlockIOWeight" "BlockIOWriteBandwidth" "Broadcast" "BusName"
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"BusPolicy" "CPUAccounting" "CPUAffinity" "CPUQuota"
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"CPUSchedulingPolicy" "CPUSchedulingPriority" "CPUSchedulingResetOnFork"
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"CPUShares" "Capabilities" "CapabilityBoundingSet" "ConditionACPower"
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"ConditionArchitecture" "ConditionCapability"
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"ConditionDirectoryNotEmpty" "ConditionFileIsExecutable"
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"ConditionFileNotEmpty" "ConditionFirstBoot" "ConditionHost"
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"ConditionKernelCommandLine" "ConditionNeedsUpdate"
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"ConditionPathExists" "ConditionPathExistsGlob"
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"ConditionPathIsDirectory" "ConditionPathIsMountPoint"
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"ConditionPathIsReadWrite" "ConditionPathIsSymbolicLink"
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"ConditionSecurity" "ConditionVirtualization" "Conflicts"
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"DefaultDependencies" "DefaultInstance" "DeferAcceptSec" "Delegate"
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"Description" "DeviceAllow" "DevicePolicy" "DirectoryMode"
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"DirectoryNotEmpty" "Documentation" "Environment" "EnvironmentFile"
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"ExecReload" "ExecStart" "ExecStartPost" "ExecStartPre" "ExecStop"
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"ExecStopPost" "ExecStopPre" "FailureAction" "FileDescriptorStoreMax"
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"FreeBind" "Group" "GuessMainPID" "IOSchedulingClass"
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"IOSchedulingPriority" "IPTOS" "IPTTL" "IgnoreOnIsolate"
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"IgnoreOnSnapshot" "IgnoreSIGPIPE" "InaccessibleDirectories"
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"JobTimeoutAction" "JobTimeoutRebootArgument"
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"JobTimeoutSec" "JoinsNamespaceOf" "KeepAlive" "KeepAliveIntervalSec"
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"KeepAliveProbes" "KeepAliveTimeSec" "KillMode" "KillSignal"
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"LimitAS" "LimitCORE" "LimitCPU" "LimitDATA" "LimitFSIZE" "LimitLOCKS"
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"LimitMEMLOCK" "LimitMSGQUEUE" "LimitNICE" "LimitNOFILE" "LimitNPROC"
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"LimitRSS" "LimitRTPRIO" "LimitRTTIME" "LimitSIGPENDING" "LimitSTACK"
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"ListenDatagram" "ListenFIFO" "ListenMessageQueue" "ListenNetlink"
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"ListenSequentialPacket" "ListenSpecial" "ListenStream" "MakeDirectory"
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"Mark" "MaxConnections" "MemoryAccounting" "MemoryLimit"
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"MessageQueueMaxMessages" "MessageQueueMessageSize" "MountFlags"
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"Nice" "NoDelay" "NoNewPrivileges" "NonBlocking" "NotifyAccess"
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"OOMScoreAdjust" "OnActiveSec" "OnBootSec" "OnCalendar" "OnFailure"
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"OnFailureJobMode" "OnStartupSec" "OnUnitActiveSec" "OnUnitInactiveSec"
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"Options" "PAMName" "PIDFile" "PartOf" "PassCredentials" "PassSecurity"
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"PathChanged" "PathExists" "PathExistsGlob" "PathModified"
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"PermissionsStartOnly" "Persistent" "Personality" "PipeSize" "Priority"
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"PrivateDevices" "PrivateNetwork" "PrivateTmp" "PropagatesReloadTo"
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"ProtectHome" "ProtectSystem" "ReadOnlyDirectories" "ReadWriteDirectories"
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"RebootArgument" "ReceiveBuffer" "RefuseManualStart" "RefuseManualStop"
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"ReloadPropagatedFrom" "RemainAfterExit" "RemoveOnStop" "RequiredBy"
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"Requires" "RequiresMountsFor" "RequiresOverridable" "Requisite"
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"RequisiteOverridable" "Restart" "RestartForceExitStatus"
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"RestartPreventExitStatus" "RestartSec" "RestrictAddressFamilies"
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"ReusePort" "RootDirectory" "RootDirectoryStartOnly" "RuntimeDirectory"
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"RuntimeDirectoryMode" "SELinuxContext" "SELinuxContextFromNet"
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"SecureBits" "SendBuffer" "SendSIGHUP" "SendSIGKILL" "Service" "Slice"
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"SloppyOptions" "SmackLabel" "SmackLabelIPIn" "SmackLabelIPOut"
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"SmackProcessLabel" "SocketGroup" "SocketMode" "SocketUser" "Sockets"
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"SourcePath" "StandardError" "StandardInput" "StandardOutput"
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"StartLimitAction" "StartLimitBurst" "StartLimitInterval"
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"StartupBlockIOWeight" "StartupCPUShares" "StopWhenUnneeded"
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"SuccessExitStatus" "SupplementaryGroups" "Symlinks" "SyslogFacility"
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"SyslogIdentifier" "SyslogLevel" "SyslogLevelPrefix"
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"SystemCallArchitectures" "SystemCallErrorNumber" "SystemCallFilter"
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"TCPCongestion" "TTYPath" "TTYReset" "TTYVHangup" "TTYVTDisallocate"
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"TimeoutSec" "TimeoutStartSec" "TimeoutStopSec" "TimerSlackNSec"
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"Transparent" "Type" "UMask" "Unit" "User" "UtmpIdentifier"
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"WakeSystem" "WantedBy" "Wants" "WatchdogSec" "What" "Where"
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"WorkingDirectory")
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"Configuration directives for systemd 218.")
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(defun systemd-company--setup (enable)
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(when (fboundp 'systemd-company--setup-company)
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(systemd-company--setup-company enable)))
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(with-eval-after-load "company"
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(defun systemd-company-backend (command &optional arg &rest ignored)
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(interactive (list 'interactive))
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(cl-case command
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(interactive (company-begin-backend 'systemd-company-backend))
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(prefix (and (eq major-mode 'systemd-mode)
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(company-grab-symbol)))
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(candidates
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(cl-remove-if-not (lambda (c) (string-prefix-p arg c))
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systemd-company-directives))))
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(defun systemd-company--setup-company (enable)
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(when enable
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(add-to-list (make-local-variable 'company-backends) 'systemd-company-backend))
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(company-mode (if enable 1 -1))))
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(provide 'systemd-company)
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;;; systemd-company.el ends here
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