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// Base class for npm commands
const usageUtil = require('./utils/usage.js')
const ConfigDefinitions = require('./utils/config/definitions.js')
const getWorkspaces = require('./workspaces/get-workspaces.js')
class BaseCommand {
constructor (npm) {
this.wrapWidth = 80
this.npm = npm
}
get name () {
return this.constructor.name
}
get description () {
return this.constructor.description
}
get usage () {
let usage = `npm ${this.constructor.name}\n\n`
if (this.constructor.description) {
usage = `${usage}${this.constructor.description}\n\n`
}
usage = `${usage}Usage:\n`
if (!this.constructor.usage) {
usage = `${usage}npm ${this.constructor.name}`
} else {
usage = `${usage}${this.constructor.usage
.map(u => `npm ${this.constructor.name} ${u}`)
.join('\n')}`
}
if (this.constructor.params) {
usage = `${usage}\n\nOptions:\n${this.wrappedParams}`
}
// Mostly this just appends aliases, this could be more clear
usage = usageUtil(this.constructor.name, usage)
usage = `${usage}\n\nRun "npm help ${this.constructor.name}" for more info`
return usage
}
get wrappedParams () {
let results = ''
let line = ''
for (const param of this.constructor.params) {
const usage = `[${ConfigDefinitions[param].usage}]`
if (line.length && line.length + usage.length > this.wrapWidth) {
results = [results, line].filter(Boolean).join('\n')
line = ''
}
line = [line, usage].filter(Boolean).join(' ')
}
results = [results, line].filter(Boolean).join('\n')
return results
}
usageError (prefix = '') {
if (prefix) {
prefix += '\n\n'
}
return Object.assign(new Error(`\nUsage: ${prefix}${this.usage}`), {
code: 'EUSAGE',
})
}
async execWorkspaces (args, filters) {
throw Object.assign(new Error('This command does not support workspaces.'), {
code: 'ENOWORKSPACES',
})
}
async setWorkspaces (filters) {
if (this.isArboristCmd) {
this.includeWorkspaceRoot = false
}
const ws = await getWorkspaces(filters, {
path: this.npm.localPrefix,
includeWorkspaceRoot: this.includeWorkspaceRoot,
})
this.workspaces = ws
this.workspaceNames = [...ws.keys()]
this.workspacePaths = [...ws.values()]
}
}
module.exports = BaseCommand
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