1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
const fs = require('fs')
const util = require('util')
const readdir = util.promisify(fs.readdir)
const { resolve } = require('path')
const Arborist = require('@npmcli/arborist')
const npa = require('npm-package-arg')
const rpj = require('read-package-json-fast')
const semver = require('semver')
const reifyFinish = require('./utils/reify-finish.js')
const BaseCommand = require('./base-command.js')
class Link extends BaseCommand {
/* istanbul ignore next - see test/lib/load-all-commands.js */
static get description () {
return 'Symlink a package folder'
}
/* istanbul ignore next - see test/lib/load-all-commands.js */
static get name () {
return 'link'
}
/* istanbul ignore next - see test/lib/load-all-commands.js */
static get usage () {
return [
'(in package dir)',
'[<@scope>/]<pkg>[@<version>]',
]
}
async completion (opts) {
const dir = this.npm.globalDir
const files = await readdir(dir)
return files.filter(f => !/^[._-]/.test(f))
}
exec (args, cb) {
this.link(args).then(() => cb()).catch(cb)
}
async link (args) {
if (this.npm.config.get('global')) {
throw Object.assign(
new Error(
'link should never be --global.\n' +
'Please re-run this command with --local'
),
{ code: 'ELINKGLOBAL' }
)
}
// link with no args: symlink the folder to the global location
// link with package arg: symlink the global to the local
args = args.filter(a => resolve(a) !== this.npm.prefix)
return args.length
? this.linkInstall(args)
: this.linkPkg()
}
async linkInstall (args) {
// load current packages from the global space,
// and then add symlinks installs locally
const globalTop = resolve(this.npm.globalDir, '..')
const globalOpts = {
...this.npm.flatOptions,
path: globalTop,
global: true,
prune: false,
}
const globalArb = new Arborist(globalOpts)
// get only current top-level packages from the global space
const globals = await globalArb.loadActual({
filter: (node, kid) =>
!node.isRoot || args.some(a => npa(a).name === kid),
})
// any extra arg that is missing from the current
// global space should be reified there first
const missing = this.missingArgsFromTree(globals, args)
if (missing.length) {
await globalArb.reify({
...globalOpts,
add: missing,
})
}
// get a list of module names that should be linked in the local prefix
const names = []
for (const a of args) {
const arg = npa(a)
names.push(
arg.type === 'directory'
? (await rpj(resolve(arg.fetchSpec, 'package.json'))).name
: arg.name
)
}
// npm link should not save=true by default unless you're
// using any of --save-dev or other types
const save =
Boolean(
this.npm.config.find('save') !== 'default' ||
this.npm.config.get('save-optional') ||
this.npm.config.get('save-peer') ||
this.npm.config.get('save-dev') ||
this.npm.config.get('save-prod')
)
// create a new arborist instance for the local prefix and
// reify all the pending names as symlinks there
const localArb = new Arborist({
...this.npm.flatOptions,
path: this.npm.prefix,
save,
})
await localArb.reify({
...this.npm.flatOptions,
path: this.npm.prefix,
add: names.map(l => `file:${resolve(globalTop, 'node_modules', l)}`),
save,
})
await reifyFinish(this.npm, localArb)
}
async linkPkg () {
const globalTop = resolve(this.npm.globalDir, '..')
const arb = new Arborist({
...this.npm.flatOptions,
path: globalTop,
global: true,
})
await arb.reify({ add: [`file:${this.npm.prefix}`] })
await reifyFinish(this.npm, arb)
}
// Returns a list of items that can't be fulfilled by
// things found in the current arborist inventory
missingArgsFromTree (tree, args) {
if (tree.isLink)
return this.missingArgsFromTree(tree.target, args)
const foundNodes = []
const missing = args.filter(a => {
const arg = npa(a)
const nodes = tree.children.values()
const argFound = [...nodes].every(node => {
// TODO: write tests for unmatching version specs, this is hard to test
// atm but should be simple once we have a mocked registry again
if (arg.name !== node.name /* istanbul ignore next */ || (
arg.version &&
!semver.satisfies(node.version, arg.version)
)) {
foundNodes.push(node)
return true
}
})
return argFound
})
// remote nodes from the loaded tree in order
// to avoid dropping them later when reifying
for (const node of foundNodes)
node.parent = null
return missing
}
}
module.exports = Link
|
