Add PKGBUILD for packaging for archlinux, add gitignore

.gitignore

@@ -0,0 +1,3 @@
+/pkg
+/src
+/proxyenv*.pkg.tar.*

PKGBUILD

@@ -0,0 +1,27 @@
+pkgname='proxyenv-git'
+pkgver=0
+pkgrel=1
+arch=('any')
+url="https://git.leafee98.com/leafee98/proxyenv"
+pkgdesc="A cross-platform, GPU-accelerated terminal emulator"
+license=('MIT')
+depends=('bash')
+
+source=(
+    "proxyenv"
+    "proxyenv.conf"
+)
+
+sha256sums=(
+    'SKIP'
+    'SKIP'
+)
+
+pkgver() {
+    git describe --tags --long  | cut -c 2- | sed -e 's/-/./g'
+}
+
+package() {
+    install -Dm 755 "${srcdir}/proxyenv" "${pkgdir}/usr/bin/proxyenv"
+    install -Dm 644 "${srcdir}/proxyenv.conf" "${pkgdir}/etc/proxyenv.conf"
+}