n2n-git diff

diff --git a/.SRCINFO b/.SRCINFO
index fa89f7b..70dc21b 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,23 +1,25 @@
 pkgbase = n2n-git
-   pkgdesc = Peer-to-Peer VPN.
-   pkgver = 2.5.1.r198
+   pkgdesc = A Peer-to-peer VPN software which makes it easy to create virtual networks bypassing intermediate firewalls
+   pkgver = 3.1.1.r220.gf791531
    pkgrel = 1
    url = https://github.com/ntop/n2n
-   install = n2n.install
    arch = i686
    arch = x86_64
    arch = armv7h
    arch = aarch64
    license = GPL3
    makedepends = git
+   makedepends = libpcap
+   depends = libcap
    depends = openssl
-   depends = net-tools
+   depends = miniupnpc
+   depends = zstd
+   optdepends = libpcap: for n2n-decode
    provides = n2n
    conflicts = n2n
+   backup = etc/n2n/edge.conf
+   backup = etc/n2n/supernode.conf
    source = git+https://github.com/ntop/n2n.git
-   source = n2n.install
    md5sums = SKIP
-   md5sums = 4f4c2659da00c0a7c6f5ceb42fc82a71

 pkgname = n2n-git
-
diff --git a/PKGBUILD b/PKGBUILD
index cc4982b..e944f64 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -1,55 +1,53 @@
 # Maintainer: Emanuele Faranda <black.silver@hotmail.it>
 # Contributor: maz-1 <ohmygod19993 at gmail dot com>
+# Arch Maintainer: Felix Yan <felixonmars@archlinux.org>
+
 pkgname=n2n-git
 _pkgname=n2n
-pkgver=2.5.1.r198
+pkgver=3.1.1.r220.gf791531
 pkgrel=1
-pkgdesc="Peer-to-Peer VPN."
+pkgdesc="A Peer-to-peer VPN software which makes it easy to create virtual networks bypassing intermediate firewalls"
 arch=(i686 x86_64 armv7h aarch64)
 url="https://github.com/ntop/n2n"
 license=('GPL3')
-depends=('openssl' 'net-tools')
-makedepends=('git')
+depends=('libcap' 'openssl' 'miniupnpc' 'zstd')
+optdepends=('libpcap: for n2n-decode')
+makedepends=('git' 'libpcap')
 provides=(n2n)
 conflicts=(n2n)
-install="n2n.install"
-source=('git+https://github.com/ntop/n2n.git' 'n2n.install')
-md5sums=('SKIP' '4f4c2659da00c0a7c6f5ceb42fc82a71')
+backup=('etc/n2n/edge.conf'
+        'etc/n2n/supernode.conf')
+source=('git+https://github.com/ntop/n2n.git')
+md5sums=('SKIP')

 pkgver() {
-  cd "$srcdir/$_pkgname"
+  cd "${_pkgname}"
+  git describe --long --abbrev=7 | sed 's/\([^-]*-g\)/r/;s/-/./g'
+}

-  local n2n_major=`grep -F "N2N_MAJOR=" autogen.sh | sed -rs 's/^[^=]*="([^"]+)"$//'`
-  local n2n_minor=`grep -F "N2N_MINOR=" autogen.sh | sed -rs 's/^[^=]*="([^"]+)"$//'`
-  local n2n_patch=`grep -F "N2N_PATCH=" autogen.sh | sed -rs 's/^[^=]*="([^"]+)"$//'`
-  local rel="$n2n_major.$n2n_minor.$n2n_patch"
-  local rev=`git rev-list --count HEAD`
-  printf "%s.r%s" "$rel" "$rev"
+prepare() {
+  cd "${_pkgname}"
+  sed -i 's|/sbin|/bin|' Makefile
+  sed -i 's|/usr/sbin|/usr/bin|' packages/etc/systemd/system/*.service.in
+
+  # We need a better way to make the conf file owned by the user created in sysusers.d...
+  sed -i '/User=n2n/d;/Group=n2n/d' packages/etc/systemd/system/supernode.service.in
 }

 build() {
-  cd "$srcdir/$_pkgname"
+  cd "${_pkgname}"
   ./autogen.sh
-  ./configure --prefix=/usr
-
+  ./configure --with-zstd --with-openssl --enable-miniupnp --enable-pcap --enable-cap --enable-pthread
   make
-
-  # Prepare the service files
-  cd packages/debian
-  ./configure
 }

 package() {
-  cd "$srcdir/$_pkgname"
-  install -dm700 "$pkgdir/etc/n2n"
-  install -dm755 "$pkgdir/usr/lib/systemd/system"
-
-  install -Dm600 "packages/etc/n2n/edge.conf.sample" "$pkgdir/etc/n2n/edge.conf"
-  install -Dm600 "packages/etc/n2n/supernode.conf.sample" "$pkgdir/etc/n2n/supernode.conf"
-  install -Dm644 "packages/etc/systemd/system/edge.service" "$pkgdir/usr/lib/systemd/system/edge.service"
-  install -Dm644 "packages/etc/systemd/system/edge@.service" "$pkgdir/usr/lib/systemd/system/edge@.service"
-  install -Dm644 "packages/etc/systemd/system/supernode.service" "$pkgdir/usr/lib/systemd/system/supernode.service"
-
-  make DESTDIR="$pkgdir" install
-  mv "$pkgdir/usr/sbin" "$pkgdir/usr/bin"
+  cd "${_pkgname}"
+  DESTDIR="$pkgdir" SBINDIR="$pkgdir"/usr/bin make install
+
+  install -Dm600 packages/etc/n2n/edge.conf.sample "$pkgdir"/etc/n2n/edge.conf
+  install -Dm600 packages/etc/n2n/supernode.conf.sample "$pkgdir"/etc/n2n/supernode.conf
+  install -Dm644 packages/etc/systemd/system/edge.service.in "$pkgdir"/usr/lib/systemd/system/edge.service
+  install -Dm644 packages/etc/systemd/system/edge@.service.in "$pkgdir"/usr/lib/systemd/system/edge@.service
+  install -Dm644 packages/etc/systemd/system/supernode.service.in "$pkgdir"/usr/lib/systemd/system/supernode.service
 }
diff --git a/n2n.install b/n2n.install
deleted file mode 100644
index 4575f81..0000000
--- a/n2n.install
+++ /dev/null
@@ -1,9 +0,0 @@
-post_install() {
-  post_upgrade
-}
-
-post_upgrade() {
-  # the n2n user will be used by the supernode and edge services
-  getent group n2n >/dev/null || groupadd -r n2n
-  getent passwd n2n >/dev/null || useradd -M -N -d / -g n2n -r -s /sbin/nologin n2n
-}