Initial commit.

.gitignore

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+email
+.idea

.travis.yml

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+language: go
+go:
+- '1.6'
+script:
+- make all
+deploy:
+  provider: releases
+  file: email
+  on:
+    tags: true
+    branch: master
+    repo: wrouesnel/emailcli
+  api_key:
+    secure: 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

LICENSE.md

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+The MIT License (MIT)
+
+Copyright (c) 2016 Will Rouesnel
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Makefile

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+
+GO_SRC := $(shell find -type f -name "*.go")
+
+all: vet test email
+
+# Simple go build
+email: $(GO_SRC)
+	CGO_ENABLED=0 GOOS=linux go build -a -ldflags "-extldflags '-static' -X main.Version=$(shell git describe --long --dirty)" -o email .
+
+vet:
+	go vet .
+
+test:
+	go test -v .
+
+.PHONY: test vet

README.md

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+# Emailcli
+
+Because surprisingly, everything else out there just barely fails to
+be useful to me.
+
+This utility does exactly one thing: wrap a Golang email library in a
+command line interface.
+
+## Install
+
+    go get github.com/wrouesnel/emailcli
+
+## Usage
+
+```
+email --username [email protected] --password somepassword \
+    --host smtp.gmail.com --port 587 \
+    --subject "Test mail" \
+    --body "Test Body" [email protected]
+```
+
+For security, it also supports reading settings from environment
+variables:
+```
+export EMAIL_PASSWORD=somepassword
+email --username [email protected] \
+    --host smtp.gmail.com --port 587 \
+    --subject "Test mail" \
+    --body "Test Body" [email protected]
+```
+
+All command line variables can be used as environment variables by
+appending EMAIL_ to the parameter name and capitalizing.

main.go

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+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/jordan-wright/email"
+	"gopkg.in/alecthomas/kingpin.v2"
+	"net"
+	"net/smtp"
+	"io/ioutil"
+)
+
+var (
+	username = kingpin.Flag("username", "Username to authenticate to the SMTP server with").Envar("EMAIL_USERNAME").String()
+	password = kingpin.Flag("password", "Password to authenticate to the SMTP server with").Envar("EMAIL_PASSWORD").String()
+
+	//usetls = kingpin.Flag("use-tls", "Use TLS to authenticate").Envar("EMAIL_USETLS").Bool()
+	host =kingpin.Flag("host", "Hostname").Envar("EMAIL_HOST").String()
+	port = kingpin.Flag("port", "Port number").Envar("EMAIL_PORT").Default("25").Uint16()
+
+	attachments = kingpin.Flag("attach", "Files to attach to the email.").Envar("EMAIL_ATTACH").ExistingFiles()
+
+	subject = kingpin.Flag("subject", "Subject line of email.").Envar("EMAIL_SUBJECT").String()
+	body = kingpin.Flag("body", "Body of email. Read from stdin if blank.").Envar("EMAIL_BODY").String()
+
+	from = kingpin.Flag("from", "From address for email").Envar("EMAIL_FROM").String()
+	to = kingpin.Arg("to", "Email recipients").Strings()
+
+	timeout = kingpin.Flag("timeout", "Timeout for mail sending").Envar("EMAIL_TIMEOUT").Duration()
+	poolsize = kingpin.Flag("concurrent-sends", "Max concurrent email send jobs").Envar("EMAIL_CONCURRENT_SENDS").Default("1").Int()
+)
+
+func main() {
+	kingpin.Parse()
+
+	if *timeout == 0 {
+		*timeout = -1
+	}
+
+	var bodytxt []byte
+	if *body == "" {
+		var err error
+		bodytxt, err = ioutil.ReadAll(os.Stdin)
+		if err != nil {
+			println(err)
+			os.Exit(1)
+		}
+	} else {
+		bodytxt = []byte(*body)
+	}
+
+	err:= func() error {
+		sendPool := email.NewPool(
+			net.JoinHostPort(*host, fmt.Sprintf("%v", *port)),
+			*poolsize,
+			smtp.PlainAuth("", *username, *password, *host),
+		)
+		defer sendPool.Close()
+
+		for _, recipient := range *to {
+			m := email.NewEmail()
+			m.From = *from
+			m.To = []string{recipient}
+			m.Subject = *subject
+			m.Text = bodytxt
+
+			for _, filename := range *attachments {
+				_, err := m.AttachFile(filename)
+				if err != nil {
+					println(err)
+					return err
+				}
+			}
+
+			if err := sendPool.Send(m, *timeout); err != nil {
+				println("Error sending mail:", recipient, err.Error())
+			}
+		}
+		return nil
+	}()
+
+	if err != nil {
+		os.Exit(1)
+	}
+	os.Exit(0)
+}