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Initial commit for repoExists #776

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Initial commit for repoExists #776

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a09764f
Initial commit for repoExists
aphelionz Feb 24, 2017
af7aeaa
Lint fixes
aphelionz Feb 24, 2017
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2 changes: 2 additions & 0 deletions src/core/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@ const debug = require('debug')
const defaultRepo = require('./default-repo')

const components = require('./components')
const utils = require('./utils')

class IPFS {
constructor (configOpts) {
Expand Down Expand Up @@ -62,6 +63,7 @@ class IPFS {
this.bitswap = components.bitswap(this)
this.ping = components.ping(this)
this.pubsub = components.pubsub(this)
this.repoExists = utils.repoExists(this)
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Instead of adding a new utility function, we could just assign this.repoExists to repoInstance.exists and all should work. Would be less duplicated code + tests.

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@aphelionz aphelionz Mar 7, 2017 •
edited
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I'll give that a shot. The test should still run against this.repoExists though, right?

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Yeah, I would say we should still test it, to be sure. Better safe than sorry


if (configOpts.EXPERIMENTAL.pubsub) {
this.log('EXPERIMENTAL pubsub is enabled')
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12 changes: 12 additions & 0 deletions src/core/utils.js
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Expand Up @@ -14,4 +14,16 @@ exports.ifRepoExists = (repo, cb) => {
})
}

exports.repoExists = (self) => {
return (cb) => {
self._repo.exists((err, exists) => {
if (err) {
return cb(err)
}

cb(err, exists)
})
}
}
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Let's converge repoExists and ifRepoExists and make the converged function async (with callbacks and a promisify wrapper), the reason why it needs to be async is because the repo might be over a wire (like a S3 bucket).

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Hi @aphelionz , how is the development of this feature?

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@diasdavid Gonna push some more commit(s) today.

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Let me know if you need any help :)


exports.OFFLINE_ERROR = new Error('This command must be run in online mode. Try running \'ipfs daemon\' first.')
20 changes: 20 additions & 0 deletions test/core/init.spec.js
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Expand Up @@ -83,4 +83,24 @@ describe('init', () => {
})
})
})

it('checks if existing repo exists', (done) => {
ipfs.init({ bits: 1024, emptyRepo: true }, (err) => {
expect(err).to.not.exist

ipfs.repoExists((err, exists) => {
expect(err).to.not.exist
expect(exists).to.be.true
done()
})
})
})

it('checks if nonexistant repo exists', (done) => {
ipfs.repoExists((err, exists) => {
expect(err).to.not.exist
expect(exists).to.be.false
done()
})
})
})