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58 lines
2.2 KiB
58 lines
2.2 KiB
13 years ago
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module.exports = remotePackages
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var registry = require("../npm-registry-client/index.js")
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, containsSingleMatch = require("./contains-single-match.js")
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, getCompletions = require("./get-completions.js")
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/*
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Looks up remote packages for CLI tab-completion.
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NOTE: If doVersion is true, versions in the form <name>@<version>
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will be completed.
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If doTag is true, tags in the form <name>@<tag> will be
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completed.
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If recurring in true, sequences of multiple packages can be
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completed. i.e. for schemes such as:
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npm <command> <name>[@<version> [<name>[@<version>] ...]
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*/
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function remotePackages (args, index, doVersion, doTag
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, recurring, cb) {
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if (recurring || index < 3) {
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var name = (args.length + 1 === index) ? args[args.length - 1] : ""
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if (name === undefined) name = ""
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if (name.indexOf("/") !== -1) return cb(null, [])
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// use up-to 1 hour stale cache. not super urgent.
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registry.get("/", null, 3600, function (er, d) {
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if (er) return cb(er)
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var remoteList = Object.keys(d)
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, found = remoteList.indexOf(name)
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, unique = found && containsSingleMatch(name, remoteList)
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, simpleMatches = getCompletions(name, remoteList)
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, uniqueMatch = unique && simpleMatches[0]
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, addTag = doTag && (unique || found || name.indexOf("@") !== -1)
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, addVer = doVersion && (unique || found || name.indexOf("@") !== -1)
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, list = []
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, pieces = (uniqueMatch || name).split("@")
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, pkgname = pieces[0]
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, extras = []
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if (unique && !addTag && !addVer) return cb(null, [uniqueMatch])
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if (d[pkgname] && (addTag || addVer)) {
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if (d[pkgname].versions && addVer) {
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extras = extras.concat(Object.keys(d[pkgname].versions))
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}
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if (d[pkgname]["dist-tags"] && addTag) {
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extras = extras.concat(Object.keys(d[pkgname]["dist-tags"]))
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}
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list = getCompletions(name, list.concat(extras.map(function (e) {
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return pkgname + "@" + e
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})))
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}
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if (!unique) list = list.concat(getCompletions(name, remoteList))
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return cb(null, list)
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})
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}
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}
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