var promisify = require("promisify-node");

var path = require("path");

var fs = require("fs");

var checkPrepared = require("./checkPrepared");

var prepareForBuild = require("./prepareForBuild");

var exec = promisify(function(command, opts, callback) {

return require("child_process").exec(command, opts, callback);

});

var local = path.join.bind(path.join, __dirname);

if (fs.existsSync(local("../.didntcomefromthenpmregistry"))) {

return checkAndBuild();

}

if (process.env.BUILD_DEBUG) {

console.info("[nodegit] Doing a debug build, no fetching allowed.");

return checkAndBuild();

}

if (process.env.BUILD_ONLY) {

console.info("[nodegit] BUILD_ONLY is set to true, no fetching allowed.");

return checkAndBuild();

}

console.info("[nodegit] Fetching binary from S3.");

return exec("node-pre-gyp install")

.then(

function() {

console.info("[nodegit] Completed installation successfully.");

},

function() {

console.info("[nodegit] Failed to install prebuilt binary, " +

"building manually.");

return checkAndBuild();

}

);

function checkAndBuild() {

console.info("[nodegit] Making sure dependencies are available and native " +

"code is generated");

return prepareForBuild().then(

function() {

process.exit(0);

},

function() {

process.exit(1);

}

);

}