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#!/bin/sh
set -e
SCRIPT=$(readlink $0 || true)
if [ -z $SCRIPT ]; then
SCRIPT=$0
fi;
SCRIPT_DIR="$(cd `dirname "$SCRIPT"` && pwd -P)"
RELEASE_ROOT_DIR="$(cd "$SCRIPT_DIR/.." && pwd -P)"
REL_NAME="{{ rel_name }}"
REL_VSN="{{ rel_vsn }}"
ERTS_VSN="{{ erts_vsn }}"
REL_DIR="$RELEASE_ROOT_DIR/releases/$REL_VSN"
ERL_OPTS="{{ erl_opts }}"
find_erts_dir() {
__erts_dir="$RELEASE_ROOT_DIR/erts-$ERTS_VSN"
if [ -d "$__erts_dir" ]; then
ERTS_DIR="$__erts_dir";
ROOTDIR="$RELEASE_ROOT_DIR"
else
__erl="$(which erl)"
code="io:format(\"~s\", [code:root_dir()]), halt()."
__erl_root="$("$__erl" -boot no_dot_erlang -noshell -eval "$code")"
ERTS_DIR="$__erl_root/erts-$ERTS_VSN"
ROOTDIR="$__erl_root"
fi
}
find_sys_config() {
__possible_sys="$REL_DIR/sys.config"
if [ -f "$__possible_sys" ]; then
SYS_CONFIG="$__possible_sys"
else
if [ -L "$__possible_sys".orig ]; then
mv "$__possible_sys".orig "$__possible_sys"
SYS_CONFIG="$__possible_sys"
fi
fi
}
find_vm_args() {
__possible_vm_args="$REL_DIR/vm.args"
if [ -f "$__possible_vm_args" ]; then
VM_ARGS="$__possible_vm_args"
else
if [ -L "$__possible_vm_args".orig ]; then
mv "$__possible_vm_args".orig "$__possible_vm_args"
VM_ARGS="$__possible_vm_args"
fi
fi
}
find_erts_dir
find_sys_config
find_vm_args
export ROOTDIR="$RELEASE_ROOT_DIR"
export BINDIR="$ERTS_DIR/bin"
export EMU="beam"
export PROGNAME="erl"
export LD_LIBRARY_PATH="$ERTS_DIR/lib:$LD_LIBRARY_PATH"
ERTS_LIB_DIR="$ERTS_DIR/../lib"
[ -f "$REL_DIR/$REL_NAME.boot" ] && BOOTFILE="$REL_NAME" || BOOTFILE=start
cd "$ROOTDIR"
# Save extra arguments
ARGS="$@"
# Build arguments for erlexec
set -- "$ERL_OPTS"
[ "$SYS_CONFIG" ] && set -- "$@" -config "$SYS_CONFIG"
[ "$VM_ARGS" ] && set -- "$@" -args_file "$VM_ARGS"
set -- "$@" -boot_var ERTS_LIB_DIR "$ERTS_LIB_DIR" -boot "$REL_DIR/$BOOTFILE" "$ARGS"
# Boot the release
$BINDIR/erlexec $@
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