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Merge pull request #1019 from lamarrr/conda-support
Add Conda Support
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| // Copyright (c) Microsoft Corporation and others. Licensed under the MIT license. | ||
| // SPDX-License-Identifier: MIT | ||
|
|
||
| const asyncMiddleware = require('../middleware/asyncMiddleware') | ||
| const router = require('express').Router() | ||
| const requestPromise = require('request-promise-native') | ||
| const { uniq } = require('lodash') | ||
| const { Cache } = require('memory-cache') | ||
| const condaChannels = { | ||
| 'anaconda-main': 'https://repo.anaconda.com/pkgs/main', | ||
| 'anaconda-r': 'https://repo.anaconda.com/pkgs/r', | ||
| 'conda-forge': 'https://conda.anaconda.org/conda-forge' | ||
| } | ||
| const condaCache = new Cache() | ||
|
|
||
| async function fetchCondaChannelData(channel) { | ||
| const key = `${channel}-channelData` | ||
| let channelData = condaCache.get(key) | ||
| if (!channelData) { | ||
| const url = `${condaChannels[channel]}/channeldata.json` | ||
| channelData = await requestPromise({ url, method: 'GET', json: true }) | ||
| condaCache.put(key, channelData, 8 * 60 * 60 * 1000) // 8 hours | ||
| } | ||
| return channelData | ||
| } | ||
|
|
||
| async function fetchCondaRepoData(channel, subdir) { | ||
| const key = `${channel}-${subdir}-repoData` | ||
| let repoData = condaCache.get(key) | ||
| if (!repoData) { | ||
| const url = `${condaChannels[channel]}/${subdir}/repodata.json` | ||
| repoData = await requestPromise({ url, method: 'GET', json: true }) | ||
| condaCache.put(key, repoData, 8 * 60 * 60 * 1000) // 8 hours | ||
| } | ||
| return repoData | ||
| } | ||
|
|
||
| router.get( | ||
| '/:channel/:subdir/:name/revisions', | ||
| asyncMiddleware(async (request, response) => { | ||
| let { channel, subdir, name } = request.params | ||
| channel = encodeURIComponent(channel) | ||
| subdir = encodeURIComponent(subdir) | ||
| name = encodeURIComponent(channel) | ||
| if (!condaChannels[channel]) { | ||
| return response.status(404).send(`Unrecognized Conda channel ${channel}`) | ||
| } | ||
| let channelData = await fetchCondaChannelData(channel) | ||
| if (!channelData.packages[name]) { | ||
| return response.status(404).send(`Package ${name} not found in Conda channel ${channel}`) | ||
| } | ||
| if (subdir !== '-' && !channelData.subdirs.find(x => x == subdir)) { | ||
| return response.status(404).send(`Subdir ${subdir} is non-existent in Conda channel ${channel}`) | ||
| } | ||
| let revisions = [] | ||
| let subdirs = subdir === '-' ? channelData.packages[name].subdirs : [subdir] | ||
| for (let subdir of subdirs) { | ||
| const repoData = await fetchCondaRepoData(channel, subdir) | ||
| if (repoData['packages']) { | ||
| Object.entries(repoData['packages']) | ||
| .forEach(([, packageData]) => { | ||
| if (packageData.name === name) { | ||
| revisions.push(`${subdir}:${packageData.version}-${packageData.build}`) | ||
| } | ||
| }) | ||
| } | ||
| if (repoData['packages.conda']) { | ||
| Object.entries(repoData['packages.conda']) | ||
| .forEach(([, packageData]) => { | ||
| if (packageData.name === name) { | ||
| revisions.push(`${subdir}:${packageData.version}-${packageData.build}`) | ||
| } | ||
| }) | ||
| } | ||
| } | ||
| return response.status(200).send(uniq(revisions)) | ||
| }) | ||
| ) | ||
|
|
||
| router.get( | ||
| '/:channel/:name', | ||
| asyncMiddleware(async (request, response) => { | ||
| let { channel, name } = request.params | ||
| channel = encodeURIComponent(channel) | ||
| name = encodeURIComponent(name) | ||
| if (!condaChannels[channel]) { | ||
| return response.status(404).send([]) | ||
| } | ||
| let channelData = await fetchCondaChannelData(channel) | ||
| let matches = Object.entries(channelData.packages).filter(([packageName,]) => packageName.includes(name)).map( | ||
| ([packageName,]) => { return { id: packageName } } | ||
| ) | ||
| return response.status(200).send(matches) | ||
| }) | ||
| ) | ||
|
|
||
| function setup() { | ||
| return router | ||
| } | ||
|
|
||
| module.exports = setup |
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