Move examples to a separate repo to minimize dependencies

[harrisonhjones]

Overview

As brought up in #16 this PR removes our examples (@jordic to move them to a new repo) to minimize the deps pulled into this project.

Testing

Pushed this change to my fork. Checked that the build succeeds in some cases: https://travis-ci.org/github/harrisonhjones/goics/builds/765948947 (build failures for 1.9 and 1.8 addressed in #17 )

[jordic]

There's no need to an extra repo, just move them inside a examples folder. It's enough!

[harrisonhjones]

Does that remove their deps from go.mod? If so I did not know that.

[harrisonhjones]

Hey @jordic, checking in on this. Any thoughts?

[pivaldi]

Hi,

Making a fresh install of this library, this load these unwanted libraries :

>  go mod graph | grep  goics
pi/essai github.com/jordic/goics@v0.0.0-20210404174824-5a0337b716a0
github.com/jordic/goics@v0.0.0-20210404174824-5a0337b716a0 github.com/go-sql-driver/mysql@v1.5.0
github.com/jordic/goics@v0.0.0-20210404174824-5a0337b716a0 github.com/gorilla/mux@v1.8.0
github.com/jordic/goics@v0.0.0-20210404174824-5a0337b716a0 github.com/jmoiron/sqlx@v1.3.1

I don't understand the need of mysql, gorilla and sqlx in the example, there is no need of these libs to provide a comprehensive example :

package main

import (
	"log"
	"net/http"
	"time"

	"github.com/jordic/goics"
)

const serverHost = "localhost:9000"

type Reserva struct {
	UID         string // Should be uuid.UUID from "github.com/google/uuid"
	DateStart   time.Time
	DataEnd     time.Time
	Location    string
	Summary     string
	Description string
}

// A collection of rous
type ReservasCollection []*Reserva

func main() {
	http.Handle("/", http.HandlerFunc(LimpiezaHandler))

	log.Print("Server started at http://" + serverHost)
	log.Fatal(http.ListenAndServe(serverHost, nil))
}

func LimpiezaHandler(w http.ResponseWriter, r *http.Request) {
	log.Print("Calendar request")
	// Setup headers for the calendar
	w.Header().Set("Content-type", "text/calendar")
	w.Header().Set("charset", "utf-8")
	w.Header().Set("Content-Disposition", "inline")
	w.Header().Set("filename", "calendar.ics")
	// Get the Collection models
	collection := GetReservas()
	// Encode it.
	goics.NewICalEncode(w).Encode(collection)
}

func GetReservas() ReservasCollection {
	now := time.Now()
	desc := `Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Proin urna felis, porta in convallis cursus, eleifend ac orci…`

	return ReservasCollection{
		{
			UID:         "d4c8a472-2c06-4c95-929e-885e3db7ee51",
			DateStart:   now,
			DataEnd:     now.Add(time.Hour),
			Location:    "Here",
			Summary:     "This is the summary",
			Description: desc,
		},
		{
			UID:         "28aa46c7-f7d0-4727-bf5c-4e54b7a72bce",
			DateStart:   now.Add(26 * time.Hour),
			DataEnd:     now.Add(27 * time.Hour),
			Location:    "There",
			Summary:     "This is an other summary",
			Description: desc + " Bis…",
		},
	}
}

// We implement ICalEmiter interface that will return a goics.Componenter.
func (rc ReservasCollection) EmitICal() goics.Componenter {
	c := goics.NewComponent()
	c.SetType("VCALENDAR")
	c.AddProperty("CALSCAL", "GREGORIAN")
	c.AddProperty("PRODID;X-RICAL-TZSOURCE=TZINFO", "-//tmpo.io")

	for _, ev := range rc {
		s := goics.NewComponent()
		s.SetType("VEVENT")
		k, v := goics.FormatDateField("DTSTART", ev.DateStart)
		s.AddProperty(k, v)
		k, v = goics.FormatDateField("DTEND", ev.DataEnd)
		s.AddProperty(k, v)
		s.AddProperty("UID", ev.UID)
		s.AddProperty("DESCRIPTION", ev.Description)
		s.AddProperty("SUMMARY", ev.Summary)
		s.AddProperty("LOCATION", ev.Location)

		c.AddComponent(s)
	}

	return c
}