diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/rlx_prv_assembler.erl | 644 |
1 files changed, 25 insertions, 619 deletions
diff --git a/src/rlx_prv_assembler.erl b/src/rlx_prv_assembler.erl index 33be3e0..255e0da 100644 --- a/src/rlx_prv_assembler.erl +++ b/src/rlx_prv_assembler.erl @@ -646,637 +646,43 @@ ensure_not_exist(RelConfPath) -> end. erl_script(ErtsVsn) -> - [<<"#!/bin/sh -set -e - -SCRIPT_DIR=`dirname $0` -ROOTDIR=`cd $SCRIPT_DIR/../../ && pwd` -BINDIR=$ROOTDIR/erts-">>, ErtsVsn, <<"/bin -EMU=beam -PROGNAME=`echo $0 | sed 's/.*\\///'` -export EMU -export ROOTDIR -export BINDIR -export PROGNAME -exec \"$BINDIR/erlexec\" ${1+\"$@\"} -">>]. - + render(erl_script, [{erts_vsn, ErtsVsn}]). + bin_file_contents(RelName, RelVsn, ErtsVsn, ErlOpts) -> - [<<"#!/bin/sh - -set -e - -SCRIPT_DIR=`dirname $0` -RELEASE_ROOT_DIR=`cd $SCRIPT_DIR/.. && pwd` -REL_NAME=">>, RelName, <<" -REL_VSN=">>, RelVsn, <<" -ERTS_VSN=">>, ErtsVsn, <<" -REL_DIR=$RELEASE_ROOT_DIR/releases/$REL_VSN -ERL_OPTS=">>, ErlOpts, <<" - -find_erts_dir() { - local erts_dir=$RELEASE_ROOT_DIR/erts-$ERTS_VSN - if [ -d \"$erts_dir\" ]; then - ERTS_DIR=$erts_dir; - ROOTDIR=$RELEASE_ROOT_DIR - else - local erl=`which erl` - local erl_root=`$erl -noshell -eval \"io:format(\\\"~s\\\", [code:root_dir()]).\" -s init stop` - ERTS_DIR=$erl_root/erts-$ERTS_VSN - ROOTDIR=$erl_root - fi - -} - -find_sys_config() { - local possible_sys=$REL_DIR/sys.config - if [ -f \"$possible_sys\" ]; then - SYS_CONFIG=\"-config $possible_sys\" - fi -} - -find_erts_dir -find_sys_config -export ROOTDIR=$RELEASE_ROOT_DIR -export BINDIR=$ERTS_DIR/bin -export EMU=beam -export PROGNAME=erl -export LD_LIBRARY_PATH=$ERTS_DIR/lib:$LD_LIBRARY_PATH - -cd $ROOTDIR - -$BINDIR/erlexec $ERL_OPTS $SYS_CONFIG -boot $REL_DIR/$REL_NAME $@">>]. + render(bin, [{rel_name, RelName}, {rel_vsn, RelVsn}, {erts_vsn, ErtsVsn}, + {erl_opts, ErlOpts}]). extended_bin_file_contents(RelName, RelVsn, ErtsVsn, ErlOpts) -> - [<<"#!/bin/sh - -set -e - -SCRIPT_DIR=`dirname $0` -RELEASE_ROOT_DIR=`cd $SCRIPT_DIR/.. && pwd` -REL_NAME=">>, RelName, <<" -REL_VSN=">>, RelVsn, <<" -ERTS_VSN=">>, ErtsVsn, <<" -REL_DIR=$RELEASE_ROOT_DIR/releases/$REL_VSN -ERL_OPTS=">>, ErlOpts, <<" -PIPE_DIR=/tmp/erl_pipes/">>, RelName, <<"/ - -find_erts_dir() { - local erts_dir=$RELEASE_ROOT_DIR/erts-$ERTS_VSN - if [ -d \"$erts_dir\" ]; then - ERTS_DIR=$erts_dir; - ROOTDIR=$RELEASE_ROOT_DIR - else - local erl=`which erl` - local erl_root=`$erl -noshell -eval \"io:format(\\\"~s\\\", [code:root_dir()]).\" -s init stop` - ERTS_DIR=$erl_root/erts-$ERTS_VSN - ROOTDIR=$erl_root - fi - -} - -find_sys_config() { - local possible_sys=$REL_DIR/sys.config - if [ -f \"$possible_sys\" ]; then - SYS_CONFIG=\"-config $possible_sys\" - fi -} - -# Use $CWD/vm.args if exists, otherwise releases/APP_VSN/vm.args, or else etc/vm.args -if [ -e \"$RELEASE_ROOT_DIR/vm.args\" ]; then - VMARGS_PATH=$RELEASE_ROOT_DIR/vm.args - USE_DIR=$RELEASE_ROOT_DIR -else - USE_DIR=$REL_DIR - if [ -e \"$REL_DIR/vm.args\" ]; then - VMARGS_PATH=\"$REL_DIR/vm.args\" - else - VMARGS_PATH=\"$REL_DIR/vm.args\" - fi -fi - -RUNNER_LOG_DIR=$RELEASE_ROOT_DIR/log -# Make sure log directory exists -mkdir -p $RUNNER_LOG_DIR - -# Use releases/VSN/sys.config if it exists otherwise use etc/app.config -if [ -e \"$USE_DIR/sys.config\" ]; then - CONFIG_PATH=\"$USE_DIR/sys.config\" -else - if [ -e \"$REL_DIR/sys.config\" ]; then - CONFIG_PATH=\"$REL_DIR/sys.config\" - else - CONFIG_PATH=\"$REL_DIR/app.config\" - fi -fi - -# Extract the target node name from node.args -NAME_ARG=`egrep '^-s?name' $VMARGS_PATH` -if [ -z \"$NAME_ARG\" ]; then - echo \"vm.args needs to have either -name or -sname parameter.\" - exit 1 -fi - -# Extract the name type and name from the NAME_ARG for REMSH -REMSH_TYPE=`echo $NAME_ARG | awk '{print $1}'` -REMSH_NAME=`echo $NAME_ARG | awk '{print $2}'` - -# Note the `date +%s`, used to allow multiple remsh to the same node transparently -REMSH_NAME_ARG=\"$REMSH_TYPE remsh`date +%s`@`echo $REMSH_NAME | awk -F@ '{print $2}'`\" -REMSH_REMSH_ARG=\"-remsh $REMSH_NAME -boot start_clean\" - -# Extract the target cookie -COOKIE_ARG=`grep '^-setcookie' $VMARGS_PATH` -if [ -z \"$COOKIE_ARG\" ]; then - echo \"vm.args needs to have a -setcookie parameter.\" - exit 1 -fi - -find_erts_dir -find_sys_config -export ROOTDIR=$RELEASE_ROOT_DIR -export BINDIR=$ERTS_DIR/bin -export EMU=beam -export PROGNAME=erl -export LD_LIBRARY_PATH=$ERTS_DIR/lib:$LD_LIBRARY_PATH - -cd $ROOTDIR - -# Setup remote shell command to control node -REMSH=\"$BINDIR/erl $REMSH_NAME_ARG $REMSH_REMSH_ARG $COOKIE_ARG\" - -# Setup command to control the node -NODETOOL=\"$BINDIR/escript $ROOTDIR/bin/nodetool $NAME_ARG $COOKIE_ARG\" - -# Check the first argument for instructions -case \"$1\" in - start|start_boot) - - # Make sure there is not already a node running - #RES=`$NODETOOL ping` - #if [ \"$RES\" = \"pong\" ]; then - # echo \"Node is already running!\" - # exit 1 - #fi - case \"$1\" in - start) - shift - START_OPTION=\"console\" - HEART_OPTION=\"start\" - ;; - start_boot) - shift - START_OPTION=\"console_boot\" - HEART_OPTION=\"start_boot\" - ;; - esac - RUN_PARAM=$(printf \"'%s' \" \"$@\") - HEART_COMMAND=\"$SCRIPT_DIR/bin/$REL_NAME $HEART_OPTION $RUN_PARAM\" - export HEART_COMMAND - mkdir -p $PIPE_DIR - $BINDIR/run_erl -daemon $PIPE_DIR $RUNNER_LOG_DIR \"exec $RELEASE_ROOT_DIR/bin/$REL_NAME $START_OPTION $RUN_PARAM\" 2>&1 - ;; - - stop) - # Wait for the node to completely stop... - case `uname -s` in - Linux|Darwin|FreeBSD|DragonFly|NetBSD|OpenBSD) - # PID COMMAND - PID=`ps ax -o pid= -o command=| - grep \"$SCRIPT_DIR/.*/[b]eam\"|awk '{print $1}'` - ;; - SunOS) - # PID COMMAND - PID=`ps -ef -o pid= -o args=| - grep \"$SCRIPT_DIR/.*/[b]eam\"|awk '{print $1}'` - ;; - CYGWIN*) - # UID PID PPID TTY STIME COMMAND - PID=`ps -efW|grep \"$SCRIPT_DIR/.*/[b]eam\"|awk '{print $2}'` - ;; - esac - $NODETOOL stop - ES=$? - if [ \"$ES\" -ne 0 ]; then - exit $ES - fi - while `kill -0 $PID 2>/dev/null`; - do - sleep 1 - done - ;; - - restart) - ## Restart the VM without exiting the process - $NODETOOL restart - ES=$? - if [ \"$ES\" -ne 0 ]; then - exit $ES - fi - ;; - - reboot) - ## Restart the VM completely (uses heart to restart it) - $NODETOOL reboot - ES=$? - if [ \"$ES\" -ne 0 ]; then - exit $ES - fi - ;; - - ping) - ## See if the VM is alive - $NODETOOL ping - ES=$? - if [ \"$ES\" -ne 0 ]; then - exit $ES - fi - ;; - - attach) - # Make sure a node IS running - RES=`$NODETOOL ping` - ES=$? - if [ \"$ES\" -ne 0 ]; then - echo \"Node is not running!\" - exit $ES - fi - - shift - exec $BINDIR/to_erl $PIPE_DIR - ;; - - remote_console) - # Make sure a node IS running - RES=`$NODETOOL ping` - ES=$? - if [ \"$ES\" -ne 0 ]; then - echo \"Node is not running!\" - exit $ES - fi - - shift - exec $REMSH - ;; - - upgrade|downgrade|install) - if [ -z \"$2\" ]; then - echo \"Missing package argument\" - echo \"Usage: $REL_NAME $1 {package base name}\" - echo \"NOTE {package base name} MUST NOT include the .tar.gz suffix\" - exit 1 - fi - - # Make sure a node IS running - RES=`$NODETOOL ping` - ES=$? - if [ \"$ES\" -ne 0 ]; then - echo \"Node is not running!\" - exit $ES - fi - - node_name=`echo $NAME_ARG | awk '{print $2}'` - erlang_cookie=`echo $COOKIE_ARG | awk '{print $2}'` - - exec $BINDIR/escript $ROOTDIR/bin/install_upgrade.escript $REL_NAME $node_name $erlang_cookie $2 - ;; - - console|console_clean|console_boot) - # .boot file typically just $REL_NAME (ie, the app name) - # however, for debugging, sometimes start_clean.boot is useful. - # For e.g. 'setup', one may even want to name another boot script. - case \"$1\" in - console) [ -f $REL_DIR/$REL_NAME.boot ] && BOOTFILE=$REL_DIR/$REL_NAME || BOOTFILE=$REL_DIR/start ;; - console_clean) BOOTFILE=$ROOTDIR/bin/start_clean ;; - console_boot) - shift - BOOTFILE=\"$1\" - shift - ;; - esac - # Setup beam-required vars - EMU=beam - PROGNAME=`echo $0 | sed 's/.*\\///'` - CMD=\"$BINDIR/erlexec -boot $BOOTFILE -env ERL_LIBS $REL_DIR/lib -config $CONFIG_PATH -args_file $VMARGS_PATH\" - export EMU - export PROGNAME - - # Dump environment info for logging purposes - echo \"Exec: $CMD\" -- ${1+\"$@\"} - echo \"Root: $ROOTDIR\" - - # Log the startup - logger -t \"$REL_NAME[$$]\" \"Starting up\" - - # Start the VM - exec $CMD -- ${1+\"$@\"} - ;; - - foreground) - # start up the release in the foreground for use by runit - # or other supervision services - - [ -f $REL_DIR/$REL_NAME.boot ] && BOOTFILE=$REL_NAME || BOOTFILE=start - FOREGROUNDOPTIONS=\"-noinput +Bd\" - - # Setup beam-required vars - EMU=beam - PROGNAME=`echo $0 | sed 's/.*\\///'` - CMD=\"$BINDIR/erlexec $FOREGROUNDOPTIONS -boot $REL_DIR/$BOOTFILE -mode embedded -config $CONFIG_PATH -args_file $VMARGS_PATH\" - export EMU - export PROGNAME - - # Dump environment info for logging purposes - echo \"Exec: $CMD\" -- ${1+\"$@\"} - echo \"Root: $ROOTDIR\" - - # Start the VM - exec $CMD -- ${1+\"$@\"} - ;; - *) - echo \"Usage: $REL_NAME {start|start_boot <file>|foreground|stop|restart|reboot|ping|console|console_clean|console_boot <file>|attach|remote_console|upgrade}\" - exit 1 - ;; -esac - -exit 0">>]. + render(extended_bin, [{rel_name, RelName}, {rel_vsn, RelVsn}, + {erts_vsn, ErtsVsn}, {erl_opts, ErlOpts}]). install_upgrade_escript_contents() -> - [<<"#!/usr/bin/env escript -%%! -noshell -noinput -%% -*- mode: erlang;erlang-indent-level: 4;indent-tabs-mode: nil -*- -%% ex: ft=erlang ts=4 sw=4 et - --define(TIMEOUT, 60000). --define(INFO(Fmt,Args), io:format(Fmt,Args)). - -%% Upgrades, to a new tar.gz release -main([RelName, NodeName, Cookie, VersionArg]) -> - TargetNode = start_distribution(NodeName, Cookie), - WhichReleases = which_releases(TargetNode), - Version = parse_version(VersionArg), - case proplists:get_value(Version, WhichReleases) of - undefined -> - %% not installed, so unpack tarball: - ?INFO(\"Release ~s not found, attempting to unpack releases/~s/~s.tar.gz~n\",[Version,Version,RelName]), - ReleasePackage = Version ++ \"/\" ++ RelName, - case rpc:call(TargetNode, release_handler, unpack_release, - [ReleasePackage], ?TIMEOUT) of - {ok, Vsn} -> - ?INFO(\"Unpacked successfully: ~p~n\", [Vsn]), - install_and_permafy(TargetNode, RelName, Vsn); - {error, UnpackReason} -> - print_existing_versions(TargetNode), - ?INFO(\"Unpack failed: ~p~n\",[UnpackReason]), - erlang:halt(2) - end; - old -> - %% no need to unpack, has been installed previously - ?INFO(\"Release ~s is marked old, switching to it.~n\",[Version]), - install_and_permafy(TargetNode, RelName, Version); - unpacked -> - ?INFO(\"Release ~s is already unpacked, now installing.~n\",[Version]), - install_and_permafy(TargetNode, RelName, Version); - current -> %% installed and in-use, just needs to be permanent - ?INFO(\"Release ~s is already installed and current. Making permanent.~n\",[Version]), - permafy(TargetNode, RelName, Version); - permanent -> - ?INFO(\"Release ~s is already installed, and set permanent.~n\",[Version]) - end; -main(_) -> - erlang:halt(1). - -parse_version(V) when is_list(V) -> - hd(string:tokens(V,\"/\")). - -install_and_permafy(TargetNode, RelName, Vsn) -> - case rpc:call(TargetNode, release_handler, check_install_release, [Vsn], ?TIMEOUT) of - {ok, _OtherVsn, _Desc} -> - ok; - {error, Reason} -> - ?INFO(\"ERROR: release_handler:check_install_release failed: ~p~n\",[Reason]), - erlang:halt(3) - end, - case rpc:call(TargetNode, release_handler, install_release, [Vsn], ?TIMEOUT) of - {ok, _, _} -> - ?INFO(\"Installed Release: ~s~n\", [Vsn]), - permafy(TargetNode, RelName, Vsn), - ok; - {error, {no_such_release, Vsn}} -> - VerList = - iolist_to_binary( - [io_lib:format(\"* ~s\t~s~n\",[V,S]) || {V,S} <- which_releases(TargetNode)]), - ?INFO(\"Installed versions:~n~s\", [VerList]), - ?INFO(\"ERROR: Unable to revert to '~s' - not installed.~n\", [Vsn]), - erlang:halt(2) - end. - -permafy(TargetNode, RelName, Vsn) -> - ok = rpc:call(TargetNode, release_handler, make_permanent, [Vsn], ?TIMEOUT), - file:copy(filename:join([\"bin\", RelName++\"-\"++Vsn]), - filename:join([\"bin\", RelName])), - ?INFO(\"Made release permanent: ~p~n\", [Vsn]), - ok. - -which_releases(TargetNode) -> - R = rpc:call(TargetNode, release_handler, which_releases, [], ?TIMEOUT), - [ {V, S} || {_,V,_, S} <- R ]. - -print_existing_versions(TargetNode) -> - VerList = iolist_to_binary([ - io_lib:format(\"* ~s\t~s~n\",[V,S]) - || {V,S} <- which_releases(TargetNode) ]), - ?INFO(\"Installed versions:~n~s\", [VerList]). - -start_distribution(NodeName, Cookie) -> - MyNode = make_script_node(NodeName), - {ok, _Pid} = net_kernel:start([MyNode, longnames]), - erlang:set_cookie(node(), list_to_atom(Cookie)), - TargetNode = list_to_atom(NodeName), - case {net_kernel:connect_node(TargetNode), - net_adm:ping(TargetNode)} of - {true, pong} -> - ok; - {_, pang} -> - io:format(\"Node ~p not responding to pings.\n\", [TargetNode]), - erlang:halt(1) - end, - {ok, Cwd} = file:get_cwd(), - ok = rpc:call(TargetNode, file, set_cwd, [Cwd], ?TIMEOUT), - TargetNode. - -make_script_node(Node) -> - [Name, Host] = string:tokens(Node, \"@\"), - list_to_atom(lists:concat([Name, \"_upgrader_\", os:getpid(), \"@\", Host])). -">>]. + read_file("install_upgrade_escript"). nodetool_contents() -> - [<<"%% -*- mode: erlang;erlang-indent-level: 4;indent-tabs-mode: nil -*- -%% ex: ft=erlang ts=4 sw=4 et -%% ------------------------------------------------------------------- -%% -%% nodetool: Helper Script for interacting with live nodes -%% -%% ------------------------------------------------------------------- - -main(Args) -> - ok = start_epmd(), - %% Extract the args - {RestArgs, TargetNode} = process_args(Args, [], undefined), - - %% See if the node is currently running -- if it's not, we'll bail - case {net_kernel:hidden_connect_node(TargetNode), net_adm:ping(TargetNode)} of - {true, pong} -> - ok; - {_, pang} -> - io:format(\"Node ~p not responding to pings.\n\", [TargetNode]), - halt(1) - end, - - case RestArgs of - [\"ping\"] -> - %% If we got this far, the node already responsed to a ping, so just dump - %% a \"pong\" - io:format(\"pong\n\"); - [\"stop\"] -> - io:format(\"~p\n\", [rpc:call(TargetNode, init, stop, [], 60000)]); - [\"restart\"] -> - io:format(\"~p\n\", [rpc:call(TargetNode, init, restart, [], 60000)]); - [\"reboot\"] -> - io:format(\"~p\n\", [rpc:call(TargetNode, init, reboot, [], 60000)]); - [\"rpc\", Module, Function | RpcArgs] -> - case rpc:call(TargetNode, list_to_atom(Module), list_to_atom(Function), - [RpcArgs], 60000) of - ok -> - ok; - {badrpc, Reason} -> - io:format(\"RPC to ~p failed: ~p\n\", [TargetNode, Reason]), - halt(1); - _ -> - halt(1) - end; - [\"rpcterms\", Module, Function, ArgsAsString] -> - case rpc:call(TargetNode, list_to_atom(Module), list_to_atom(Function), - consult(ArgsAsString), 60000) of - {badrpc, Reason} -> - io:format(\"RPC to ~p failed: ~p\n\", [TargetNode, Reason]), - halt(1); - Other -> - io:format(\"~p\n\", [Other]) - end; - Other -> - io:format(\"Other: ~p\n\", [Other]), - io:format(\"Usage: nodetool {ping|stop|restart|reboot}\n\") - end, - net_kernel:stop(). - -process_args([], Acc, TargetNode) -> - {lists:reverse(Acc), TargetNode}; -process_args([\"-setcookie\", Cookie | Rest], Acc, TargetNode) -> - erlang:set_cookie(node(), list_to_atom(Cookie)), - process_args(Rest, Acc, TargetNode); -process_args([\"-name\", TargetName | Rest], Acc, _) -> - ThisNode = append_node_suffix(TargetName, \"_maint_\"), - {ok, _} = net_kernel:start([ThisNode, longnames]), - process_args(Rest, Acc, nodename(TargetName)); -process_args([\"-sname\", TargetName | Rest], Acc, _) -> - ThisNode = append_node_suffix(TargetName, \"_maint_\"), - {ok, _} = net_kernel:start([ThisNode, shortnames]), - process_args(Rest, Acc, nodename(TargetName)); -process_args([Arg | Rest], Acc, Opts) -> - process_args(Rest, [Arg | Acc], Opts). - - -start_epmd() -> - [] = os:cmd(epmd_path() ++ \" -daemon\"), - ok. - -epmd_path() -> - ErtsBinDir = filename:dirname(escript:script_name()), - Name = \"epmd\", - case os:find_executable(Name, ErtsBinDir) of - false -> - case os:find_executable(Name) of - false -> - io:format(\"Could not find epmd.~n\"), - halt(1); - GlobalEpmd -> - GlobalEpmd - end; - Epmd -> - Epmd - end. - - -nodename(Name) -> - case string:tokens(Name, \"@\") of - [_Node, _Host] -> - list_to_atom(Name); - [Node] -> - [_, Host] = string:tokens(atom_to_list(node()), \"@\"), - list_to_atom(lists:concat([Node, \"@\", Host])) - end. - -append_node_suffix(Name, Suffix) -> - case string:tokens(Name, \"@\") of - [Node, Host] -> - list_to_atom(lists:concat([Node, Suffix, os:getpid(), \"@\", Host])); - [Node] -> - list_to_atom(lists:concat([Node, Suffix, os:getpid()])) - end. - -%% -%% Given a string or binary, parse it into a list of terms, ala file:consult/0 -%% -consult(Str) when is_list(Str) -> - consult([], Str, []); -consult(Bin) when is_binary(Bin)-> - consult([], binary_to_list(Bin), []). - -consult(Cont, Str, Acc) -> - case erl_scan:tokens(Cont, Str, 0) of - {done, Result, Remaining} -> - case Result of - {ok, Tokens, _} -> - {ok, Term} = erl_parse:parse_term(Tokens), - consult([], Remaining, [Term | Acc]); - {eof, _Other} -> - lists:reverse(Acc); - {error, Info, _} -> - {error, Info} - end; - {more, Cont1} -> - consult(Cont1, eof, Acc) - end.">>]. + read_file("nodetool"). sys_config_file() -> - [<<"%% Thanks to Ulf Wiger at Ericcson for these comments: -%% -%% This file is identified via the erl command line option -config File. -%% Note that File should have no extension, e.g. -%% erl -config .../sys (if this file is called sys.config) -%% -%% In this file, you can redefine application environment variables. -%% This way, you don't have to modify the .app files of e.g. OTP applications. -[].">>]. + read_file("sys_config"). vm_args_file(RelName) -> - [<<"## Name of the node --name ">>, RelName, <<"@127.0.0.1 - -## Cookie for distributed erlang --setcookie ">>, RelName, <<" + render(vm_args, [{rel_name, RelName}]). -## Heartbeat management; auto-restarts VM if it dies or becomes unresponsive -## (Disabled by default..use with caution!) -##-heart +render(TemplateName, Data) -> + TemplatePath = template_path(TemplateName), + {ok, Rendered} = case erlydtl:compile(TemplatePath, TemplateName) of + ok -> TemplateName:render(Data); + {ok, Template} -> Template:render(Data) + end, + Rendered. -## Enable kernel poll and a few async threads -##+K true -##+A 5 +template_path(TemplateName) -> + BaseName = string:join([erlang:atom_to_list(TemplateName), ".dtl"]), + filename:join([code:priv_dir(relx), "templates", BaseName]). -## Increase number of concurrent ports/sockets -##-env ERL_MAX_PORTS 4096 +read_file(FileName) -> + {ok, Contents} = file:read_file(file_path(FileName)), + Contents. -## Tweak GC to run more often -##-env ERL_FULLSWEEP_AFTER 10">>]. +file_path(FileName) -> + filename:join([code:priv_dir(relx), "files", FileName]). |