jkawamoto/loci

//
// commands.go
//
// Copyright (c) 2016-2017 Junpei Kawamoto
//
// This software is released under the MIT License.
//
// http://opensource.org/licenses/mit-license.php
//

package main

import (
    "fmt"
    "os"
    "runtime"

    "github.com/urfave/cli"
)

// max returns the bigger value of the given two integers.
func max(a, b int) int {
    if a > b {
        return a
    }
    return b
}

// GlobalFlags defines global flags.
var GlobalFlags = []cli.Flag{
    cli.StringFlag{
        Name: "name, n",
        Usage: "base `NAME` of containers running tests. " +
            "If not given, containers will be deleted.",
    },
    cli.StringFlag{
        Name:  "select, s",
        Usage: "select specific runtime `VERSION` where tests running on.",
    },
    cli.StringFlag{
        Name:  "tag, t",
        Usage: "specify a `TAG` name of the docker image to be build.",
    },
    cli.IntFlag{
        Name:  "max-processors, p",
        Usage: "max processors used to run tests.",
        Value: max(runtime.NumCPU()-2, 1),
    },
    cli.BoolFlag{
        Name:  "log, l",
        Usage: "store logging information to files.",
    },
    cli.StringFlag{
        Name:  "base, b",
        Usage: "use image `TAG` as the base image.",
        Value: "ubuntu:trusty",
    },
    cli.StringFlag{
        Name:   "apt-proxy",
        Usage:  "`URL` for a proxy server of apt repository.",
        EnvVar: "APT_PROXY",
    },
    cli.StringFlag{
        Name:   "pypi-proxy",
        Usage:  "`URL` for a proxy server of pypi repository.",
        EnvVar: "PYPI_PROXY",
    },
    cli.StringFlag{
        Name:   "http-proxy",
        Usage:  "`URL` for a http proxy server.",
        EnvVar: "HTTP_PROXY",
    },
    cli.StringFlag{
        Name:   "https-proxy",
        Usage:  "`URL` for a https proxy server.",
        EnvVar: "HTTPS_PROXY",
    },
    cli.StringFlag{
        Name:   "no-proxy",
        Usage:  "Comma separated URL `LIST` for which proxies won't be used.",
        EnvVar: "NO_PROXY",
    },
    cli.BoolFlag{
        Name:  "no-build-cache",
        Usage: "Do not use cache when building the image.",
    },
    cli.BoolFlag{
        Name:  "no-color",
        Usage: "Omit to print color codes.",
    },
}

// Commands defines sub-commands.
var Commands = []cli.Command{}

// CommandNotFound prints an error message when a given command is not supported.
func CommandNotFound(c *cli.Context, command string) {
    fmt.Fprintf(
        os.Stderr, "%s: '%s' is not a %s command. See '%s --help'.",
        c.App.Name, command, c.App.Name, c.App.Name)
    os.Exit(2)
}