56 lines
1.4 KiB
Bash
Executable File
56 lines
1.4 KiB
Bash
Executable File
#!/bin/sh -e
|
|
# Helper to bypass AC_ERLANG_CHECK_LIB
|
|
#
|
|
# Ejabberd releases do not download specific versions of its erlang
|
|
# dependencies. Instead, it clones the master branch of a git
|
|
# repository and asks erl to provide the library version. However,
|
|
# the target erl program cannot be called from the host. So, this
|
|
# script aims at finding the library version installed on the target,
|
|
# without calling erlang.
|
|
|
|
usage() {
|
|
cat <<EOF
|
|
Usage:
|
|
$0 library
|
|
Look for Erlang's library in TARGET_DIR/usr/lib/erlang/lib.
|
|
|
|
If the library is found, it returns the path to the latest version,
|
|
relative to TARGET_DIR. Otherwise, it returns "not found".
|
|
|
|
If there are several versions, it returns an error because it does not
|
|
know which one Erlang uses.
|
|
|
|
EOF
|
|
}
|
|
|
|
die () {
|
|
echo "$@" >&2
|
|
exit 1
|
|
}
|
|
|
|
if [ $# -ne 1 ]; then
|
|
usage
|
|
exit 0
|
|
else
|
|
library="$1"
|
|
fi
|
|
|
|
target_dir="${TARGET_DIR:-output/target}"
|
|
|
|
[ -d "$target_dir" ] || die "TARGET_DIR is not a directory. Please \
|
|
specify the TARGET_DIR environment variable."
|
|
|
|
case "$(ls -1d -- "$target_dir/usr/lib/erlang/lib/$library-"* | wc -l)" in
|
|
0)
|
|
echo "not found"
|
|
;;
|
|
1)
|
|
echo "$target_dir/usr/lib/erlang/lib/$library-"* \
|
|
| sed -e "s,^$target_dir,,"
|
|
;;
|
|
*)
|
|
die "Several versions of $library have been found. Please \
|
|
remove the unused ones."
|
|
;;
|
|
esac
|