sun: add package

sun is a nice little application for making small notes. The timezone
patch makes sure the time is reported in the local timezone, see
https://github.com/golang/go/issues/20455.

packages/sun/build.sh

@@ -0,0 +1,24 @@
+TERMUX_PKG_HOMEPAGE=https://stand-up-notes.org
+TERMUX_PKG_DESCRIPTION="A very simple note taking cli app"
+TERMUX_PKG_LICENSE="BSD 2-Clause"
+TERMUX_PKG_MAINTAINER="@termux"
+TERMUX_PKG_VERSION=1.0.0
+TERMUX_PKG_SRCURL=https://github.com/basbossink/sun/archive/refs/tags/v${TERMUX_PKG_VERSION}.tar.gz
+TERMUX_PKG_SHA256=f0c90b8796caa66662dd82790449ca844708e20b39f7e81ef7f1cbce211d1412
+TERMUX_PKG_AUTO_UPDATE=true
+
+termux_step_make() {
+	termux_setup_golang
+
+	export GOPATH=$TERMUX_PKG_BUILDDIR
+	mkdir -p "${TERMUX_PKG_BUILDDIR}"/src/github.com/basbossink/
+	ln -sf "$TERMUX_PKG_SRCDIR" "$GOPATH"/src/github.com/basbossink/sun
+
+	cd "$GOPATH"/src/github.com/basbossink/sun
+	go build -ldflags "-s -w -X main.Version=${TERMUX_PKG_VERSION}" .
+}
+
+termux_step_make_install() {
+	install -Dm700 -t $TERMUX_PREFIX/bin \
+		${TERMUX_PKG_BUILDDIR}/src/github.com/basbossink/sun/sun
+}

packages/sun/timezone.patch

@@ -0,0 +1,39 @@
+diff --git a/main.go b/main.go
+index 150776f..42e7ccc 100644
+--- a/main.go
++++ b/main.go
+@@ -11,6 +11,7 @@ import (
+ 	"io/ioutil"
+ 	"log"
+ 	"os"
++	"os/exec"
+ 	"path/filepath"
+ 	"sort"
+ 	"strings"
+@@ -47,6 +48,18 @@ type entryReader struct {
+ 	toProcess []byte
+ }
+ 
++func setTimezone() {
++	out, err := exec.Command("getprop", "persist.sys.timezone").Output()
++	if err != nil {
++		return
++	}
++	loc, err := time.LoadLocation(strings.TrimSpace(string(out)))
++	if err != nil {
++		return
++	}
++	time.Local = loc
++}
++
+ func NewReader(r io.Reader) (*entryReader, error) {
+ 	buf, err := ioutil.ReadAll(r)
+ 	if err != nil {
+@@ -301,6 +311,7 @@ func main() {
+ 	if err != nil {
+ 		log.Fatal(err)
+ 	}
++	setTimezone()
+ 	if len(os.Args) > 1 {
+ 		writeNewEntry(dataDir, os.Args[1:])
+ 	} else {