cmd/lima: drop dependency on GNU coreutils

Signed-off-by: Akihiro Suda <[email protected]>

Author: AkihiroSuda

README.md

@@ -75,7 +75,6 @@ For the usage of containerd and nerdctl (contaiNERD ctl), visit https://github.c
 
 ## Getting started
 ### Requirements (Intel Mac)
-- coreutils (for `realpath` command) (`brew install coreutils`)
 - QEMU (`brew install qemu`)
 
 - Run the following commands to enable `--accel=hvf`:
@@ -105,7 +104,6 @@ Note: **Only** on macOS versions **before** 10.15.7 you might need to add this e
 
 ### Requirements (ARM Mac)
 
-- coreutils (for `realpath` command) (`brew install coreutils`)
 - QEMU with `--accel=hvf` support, see https://gist.github.com/citruz/9896cd6fb63288ac95f81716756cb9aa
 
 > **NOTE**

cmd/lima

@@ -1,10 +1,5 @@
 #!/bin/sh
 set -eu
 : "${LIMA_INSTANCE:=default}"
-LIMA="$(realpath "$0")"
-LIMA_BINDIR="$(dirname "$LIMA")"
-LIMACTL="${LIMA_BINDIR}/limactl"
-if [ -d "$LIMACTL" ]; then
-  LIMACTL="limactl"
-fi
+: "${LIMACTL:=limactl}"
 exec "$LIMACTL" shell "$LIMA_INSTANCE" "$@"