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ghost-version.js
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ghost-version.js
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var debug = require('ghost-ignition').debug('ghost-version'),
exec = require('child_process').exec,
config = require('ghost-ignition').config(),
fetchGhostVersion,
middleware,
ghostVersion,
ttl;
fetchGhostVersion = function fetchGhostVersion() {
debug('Ghost version not set or ttl expired');
exec('npm show ghost version', function (err, stdout, stderr) {
if (err) {
debug('fetchGhostVersion err', err);
}
if (stderr) {
debug('fetchGhostVersion stderr', stderr);
}
if (stdout) {
debug('fetchGhostVersion stdout', stdout);
ghostVersion = stdout;
ttl = new Date(Date.now() + config.get('ghostVersionTTL')).valueOf();
}
});
};
middleware = function middleware(req, res, next) {
if (!ghostVersion || ttl && ttl < Date.now()) {
fetchGhostVersion();
}
debug('res.locals.ghostVersion: ' + ghostVersion);
res.locals.ghostVersion = ghostVersion;
next();
};
fetchGhostVersion();
module.exports = middleware;