| 1 | through2 = require 'through2'
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| 2 | mixin = require './mixin'
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| 3 |
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| 4 |
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| 5 | toBulk = -> through2.obj (doc, enc, callback) ->
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| 6 | this.push alias:doc
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| 7 | callback()
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| 8 |
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| 9 |
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| 10 | jsonStream = -> through2.obj (chunk, enc, callback) ->
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| 11 | this.push(JSON.stringify(chunk) + "\n")
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| 12 | callback()
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| 13 |
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| 14 |
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| 15 | module.exports = (client, _opts) ->
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| 16 |
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| 17 | opts = mixin _opts
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| 18 |
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| 19 | instream = toBulk()
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| 20 | sink = instream.write.bind instream
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| 21 |
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| 22 | exec = ->
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| 23 | client.indices.getAlias(opts).then (v) ->
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| 24 | index for index, {aliases} of v
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| 25 | .then (indices) ->
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| 26 | Promise.all indices.map (index) -> client.indices.getAlias {index}
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| 27 | .then (vs) ->
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| 28 | col = {}
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| 29 | vs.map (v) -> for i, {aliases} of v
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| 30 | for n of aliases
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| 31 | (col[n] = (col[n] ? [])).push i
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| 32 | {_name, _index:(if i.length == 1 then i[0] else i)} for _name, i of col
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| 33 |
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| 34 | exec().then (docs) ->
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| 35 | docs.forEach sink
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| 36 | .catch (err) ->
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| 37 | stream.emit 'error', err
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| 38 |
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| 39 | stream = instream.pipe jsonStream()
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