epm play: add fvm (Flutter Version Management)

pack.d/fvm.sh

+#!/bin/sh
+
+TAR="$1"
+RETURNTARNAME="$2"
+VERSION="$3"
+URL="$4"
+
+. $(dirname $0)/common.sh
+
+[ -n "$VERSION" ] || VERSION="$(echo "$URL" | grep -oE '[0-9]+\.[0-9]+\.[0-9]+(-[0-9A-Za-z.]+)?' | head -n1)"
+[ -n "$VERSION" ] || fatal "Can't get package version"
+
+PKGNAME=$PRODUCT-$VERSION
+
+erc unpack "$TAR" || fatal
+cd $PRODUCT || fatal
+
+install -D -m755 $PRODUCT usr/bin/$PRODUCT || fatal
+
+erc pack $PKGNAME.tar usr/bin || fatal
+
+cat <<EOF >$PKGNAME.tar.eepm.yaml
+name: $PRODUCT
+group: Development/Tools
+license: MIT
+url: https://fvm.app/
+summary: Flutter Version Management
+description: A simple CLI to manage Flutter SDK versions.
+EOF
+
+return_tar $PKGNAME.tar

play.d/fvm.sh

+#!/bin/sh
+
+PKGNAME=fvm
+SUPPORTEDARCHES="x86_64 aarch64"
+VERSION="$2"
+DESCRIPTION="Flutter Version Management: A simple CLI to manage Flutter SDK versions"
+URL="https://fvm.app/"
+
+. $(dirname $0)/common.sh
+
+arch="$(epm print info -a)"
+case "$arch" in
+    x86_64)
+        arch="x64" ;;
+    aarch64)
+        arch="arm64" ;;
+esac
+
+PKGURL="$(get_github_url https://github.com/leoafarias/fvm "fvm-${VERSION}-linux-${arch}.tar.gz")"
+
+install_pack_pkgurl