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| 1 | +'use strict' |
| 2 | +const { statSync, readdirSync } = require('node:fs') |
| 3 | +const { basename, join, resolve, extname } = require('node:path') |
| 4 | +const { Database } = require('arangojs') |
| 5 | +const { aql } = require('arangojs/aql') |
| 6 | +const { Nugget } = require('../lib/nugget') |
| 7 | +const log = require('loglevel') |
| 8 | + |
| 9 | +log.setLevel('WARN') |
| 10 | + |
| 11 | +const PRIMARY = 'primary' |
| 12 | +const PASSAGE = 'passage' |
| 13 | +const EDGES = 'edges' |
| 14 | +const SEAM = 'seam' |
| 15 | +const NUGGET = 'nugget' |
| 16 | + |
| 17 | +const uuidRe = /^[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}$/ |
| 18 | + |
| 19 | +const passageLookup = {} |
| 20 | + |
| 21 | +exports.command = 'deposit <directory> [options]' |
| 22 | + |
| 23 | +exports.describe = 'Deposit content from the filesystem into a mine' |
| 24 | + |
| 25 | +exports.builder = (yargs) => { |
| 26 | + return yargs |
| 27 | + .positional('directory', { |
| 28 | + describe: 'Directory containing a rakosh mine layout', |
| 29 | + string: true, |
| 30 | + normalize: true, |
| 31 | + coerce: d => { |
| 32 | + try { |
| 33 | + if (!statSync(d).isDirectory()) throw new Error() |
| 34 | + } catch { |
| 35 | + throw new Error(`${d} is not a directory`) |
| 36 | + } |
| 37 | + return d |
| 38 | + } |
| 39 | + }) |
| 40 | + .option('replace', { |
| 41 | + alias: 'r', |
| 42 | + describe: 'Replace the existing mine if it exists', |
| 43 | + type: 'boolean', |
| 44 | + default: false |
| 45 | + }) |
| 46 | +} |
| 47 | + |
| 48 | +exports.handler = async function (argv) { |
| 49 | + try { |
| 50 | + if (argv.verbose) log.setLevel('INFO') |
| 51 | + |
| 52 | + log.info(`creating mine deposit from directory ${argv.directory}`) |
| 53 | + |
| 54 | + const dbName = basename(argv.directory) |
| 55 | + log.info(`mine is ${dbName}`) |
| 56 | + |
| 57 | + const systemDb = new Database() |
| 58 | + const databaseNames = await systemDb.listDatabases() |
| 59 | + |
| 60 | + if (databaseNames.includes(dbName)) { |
| 61 | + if (argv.replace) { |
| 62 | + log.info(`removing mine ${dbName}`) |
| 63 | + systemDb.dropDatabase(dbName) |
| 64 | + } else { |
| 65 | + log.error(`ERROR: mine ${dbName} already exists`) |
| 66 | + process.exit(1) |
| 67 | + } |
| 68 | + } |
| 69 | + |
| 70 | + log.info(`creating mine ${dbName}`) |
| 71 | + const db = await systemDb.createDatabase(dbName) |
| 72 | + |
| 73 | + await createGraph(db, argv.directory) |
| 74 | + } catch (err) { |
| 75 | + log.error(`ERROR: ${err}`) |
| 76 | + process.exit(1) |
| 77 | + } |
| 78 | +} |
| 79 | + |
| 80 | +async function createGraph (db, directory) { |
| 81 | + log.info('creating primary graph') |
| 82 | + const graph = db.graph(PRIMARY) |
| 83 | + await graph.create([ |
| 84 | + { |
| 85 | + collection: EDGES, |
| 86 | + from: [PASSAGE, SEAM, NUGGET], |
| 87 | + to: [PASSAGE, SEAM, NUGGET] |
| 88 | + } |
| 89 | + ]) |
| 90 | + |
| 91 | + const adit = await graph.vertexCollection(PASSAGE).save({ _key: 'adit' }) |
| 92 | + await deposit(graph, adit, directory) |
| 93 | + await createLinks(graph, directory) |
| 94 | + await createSeams(db, graph) |
| 95 | +} |
| 96 | + |
| 97 | +async function deposit (graph, parentVertex, path) { |
| 98 | + const dirContents = readdirSync(path, { withFileTypes: true }) |
| 99 | + const mdFiles = dirContents.filter(e => e.isFile() && extname(e.name) === '.md') |
| 100 | + const dirs = dirContents.filter(e => e.isDirectory()) |
| 101 | + const passageNuggets = {} |
| 102 | + |
| 103 | + // process markdown files |
| 104 | + for (const mdFile of mdFiles) { |
| 105 | + const base = basename(mdFile.name, '.md') |
| 106 | + |
| 107 | + // only look at files named <UUID>.md |
| 108 | + if (uuidRe.test(base)) { |
| 109 | + const nugget = new Nugget(resolve(join(path, mdFile.name))) |
| 110 | + let collection = NUGGET |
| 111 | + |
| 112 | + // a seam is a special flavour of nugget and goes in the SEAM collection |
| 113 | + if ('type' in nugget && nugget.type === 'seam') { |
| 114 | + log.info(`creating seam ${base}`) |
| 115 | + collection = SEAM |
| 116 | + } |
| 117 | + |
| 118 | + if ('passage' in nugget) { |
| 119 | + log.info(`saving passage ${base}`) |
| 120 | + passageNuggets[nugget.passage] = nugget |
| 121 | + } else { |
| 122 | + log.info(`creating nugget ${base}`) |
| 123 | + const vertex = await graph.vertexCollection(collection).save(nugget.document) |
| 124 | + await graph.edgeCollection(EDGES).save({ _from: parentVertex._id, _to: vertex._id }) |
| 125 | + } |
| 126 | + } |
| 127 | + } |
| 128 | + |
| 129 | + for (const dir of dirs) { |
| 130 | + const doc = (dir.name in passageNuggets) |
| 131 | + ? passageNuggets[dir.name].document |
| 132 | + : { label: dir.name } |
| 133 | + |
| 134 | + // create a package vertex and recurse down the directory tree |
| 135 | + log.info(`creating passage ${dir.name} ${doc.label}`) |
| 136 | + const passageVertex = await graph.vertexCollection(PASSAGE).save(doc) |
| 137 | + const dirPath = join(path, dir.name) |
| 138 | + |
| 139 | + passageLookup[resolve(dirPath)] = passageVertex._id |
| 140 | + await graph.edgeCollection(EDGES).save({ _from: parentVertex._id, _to: passageVertex._id }) |
| 141 | + |
| 142 | + await deposit(graph, passageVertex, dirPath) |
| 143 | + } |
| 144 | +} |
| 145 | + |
| 146 | +async function createLinks (graph, directory) { |
| 147 | + const dirContents = readdirSync(directory, { withFileTypes: true }) |
| 148 | + for (const dirent of dirContents) { |
| 149 | + if (dirent.isDirectory()) { |
| 150 | + createLinks(graph, resolve(join(directory, dirent.name))) |
| 151 | + } else if (dirent.isSymbolicLink() && extname(dirent.name) === '.md') { |
| 152 | + const base = basename(dirent.name, '.md') |
| 153 | + |
| 154 | + if (!passageLookup[directory]) { |
| 155 | + log.error(`ERROR: cannot find passage vertex for ${base} with path ${directory}`) |
| 156 | + continue |
| 157 | + } |
| 158 | + |
| 159 | + log.info(`creating link from ${passageLookup[directory]} to ${base}`) |
| 160 | + try { |
| 161 | + await graph.edgeCollection(EDGES).save({ |
| 162 | + _from: passageLookup[directory], |
| 163 | + _to: `nugget/${base}` |
| 164 | + }) |
| 165 | + } catch (err) { |
| 166 | + log.error(`ERROR: code ${err.code} linking ${passageLookup[directory]} to ${dirent.name}`) |
| 167 | + } |
| 168 | + } |
| 169 | + } |
| 170 | +} |
| 171 | + |
| 172 | +async function createSeams (db, graph) { |
| 173 | + try { |
| 174 | + const collection = db.collection(SEAM) |
| 175 | + const cursor = await db.query(aql` |
| 176 | + FOR doc IN ${collection} |
| 177 | + RETURN doc |
| 178 | + `) |
| 179 | + |
| 180 | + for await (const seam of cursor) { |
| 181 | + if (!('nuggets' in seam)) { |
| 182 | + log.warn(`WARNING: seam ${seam._id} has no nuggets`) |
| 183 | + continue |
| 184 | + } |
| 185 | + |
| 186 | + let from = seam._id |
| 187 | + |
| 188 | + for (const nugget of seam.nuggets) { |
| 189 | + const nuggetId = `nugget/${nugget}` |
| 190 | + |
| 191 | + log.info(`creating link from ${from} to ${nuggetId}`) |
| 192 | + try { |
| 193 | + await graph.edgeCollection(EDGES).save({ |
| 194 | + _from: from, |
| 195 | + _to: nuggetId |
| 196 | + }) |
| 197 | + } catch (err) { |
| 198 | + log.error(`ERROR: code ${err.code} linking ${from} to ${nuggetId}`) |
| 199 | + } |
| 200 | + |
| 201 | + from = nuggetId |
| 202 | + } |
| 203 | + } |
| 204 | + } catch (err) { |
| 205 | + log.error(`ERROR: exception during seam creation: ${err}`) |
| 206 | + } |
| 207 | +} |
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