1+ import chalk from 'chalk' ;
2+ import urllib from 'urllib' ;
3+ import assert from 'assert' ;
4+ import semver from 'semver' ;
5+ import { NpmCheckUpdateConfig , UpgradeInfo } from './types' ;
6+ import debug from 'debug' ;
7+ const helperDebug = debug ( 'npmcheckupdate#helper' ) ;
8+
9+ export async function checkUpdate ( option : Pick < NpmCheckUpdateConfig , 'unpkgUrl' | 'upgradePolicy' > & {
10+ pkgName : string ;
11+ pkgVersion : string ;
12+ pkgBaseDir : string ;
13+ } ) {
14+ const { unpkgUrl, upgradePolicy, pkgVersion, pkgName, pkgBaseDir } = option ;
15+
16+ let distTag : string | undefined ;
17+ let remoteVersionPatterns : string ;
18+ const [ major , minor ] = pkgVersion . split ( '.' ) ;
19+ if ( upgradePolicy === 'major' ) {
20+ remoteVersionPatterns = '*' ;
21+ } else if ( upgradePolicy === 'minor' ) {
22+ remoteVersionPatterns = `${ major } ;
23+ } else if ( upgradePolicy === 'patch' ) {
24+ remoteVersionPatterns = `${ major } ${ minor } ;
25+ } else {
26+ distTag = upgradePolicy ;
27+ remoteVersionPatterns = upgradePolicy ;
28+ }
29+
30+ // request unpkg to get version info
31+ let remoteVersion : string ;
32+ const unpkgHost = unpkgUrl . endsWith ( '/' ) ? unpkgUrl : `${ unpkgUrl } ;
33+ const remoteUrl = `${ unpkgHost } ${ pkgName } ${ remoteVersionPatterns } ;
34+ try {
35+ const { data } = await urllib . request ( remoteUrl , {
36+ dataType : 'json' ,
37+ } ) ;
38+
39+ assert ( data . version , 'Invalid package.json, not found version info' ) ;
40+ remoteVersion = data . version ;
41+ } catch ( e ) {
42+ helperDebug ( `Request ${ remoteUrl } + e . message ) ;
43+ return undefined ;
44+ }
45+
46+ // check whether need to update
47+ const result = semver . compare ( remoteVersion , pkgVersion ) ;
48+ if ( result > 0 ) {
49+ return {
50+ distTag,
51+ upgradePolicy,
52+ pkgName,
53+ pkgVersion,
54+ pkgBaseDir,
55+ targetVersion : remoteVersion ,
56+ } ;
57+ }
58+
59+ return undefined ;
60+ }
61+
62+ export function displayUpgradeInfo ( upgradeInfo : UpgradeInfo ) {
63+ // update contents
64+ const contents = [
65+ `Update available ${ chalk . gray ( upgradeInfo . pkgVersion ) } ${ chalk . greenBright ( upgradeInfo . targetVersion ) } ,
66+ `Run ${ chalk . blueBright ( `npm i -g ${ upgradeInfo . pkgName } ${ upgradeInfo . distTag || upgradeInfo . targetVersion } ) } ,
67+ ] ;
68+
69+ const removeColor = c => c . replace ( / \x1B \[ \d + m / g, '' ) ;
70+ const maxLen = contents . map ( removeColor )
71+ . sort ( ( a , b ) => a . length - b . length )
72+ . pop ( ) . length ;
73+
74+ // show content
75+ const distanceLen = 2 ;
76+ const displayContents : string [ ] = [ ] ;
77+ const contentLen = maxLen + distanceLen * 2 ;
78+ displayContents . push ( '┌' + '─' . repeat ( contentLen ) + '┐' ) ;
79+ displayContents . push ( '│' + ' ' . repeat ( contentLen ) + '│' ) ;
80+ displayContents . push ( '│' + ' ' . repeat ( contentLen ) + '│' ) ;
81+
82+ contents . forEach ( c => {
83+ const realContentLen = removeColor ( c ) . length ;
84+ const leftSpace = ' ' . repeat ( distanceLen + ( maxLen - realContentLen ) / 2 ) ;
85+ const rightSpace = ' ' . repeat ( contentLen - leftSpace . length - realContentLen ) ;
86+ displayContents . push ( '│' + leftSpace + c + rightSpace + '│' ) ;
87+ } ) ;
88+
89+ displayContents . push ( '│' + ' ' . repeat ( contentLen ) + '│' ) ;
90+ displayContents . push ( '│' + ' ' . repeat ( contentLen ) + '│' ) ;
91+ displayContents . push ( '└' + '─' . repeat ( contentLen ) + '┘' ) ;
92+ console . info ( `\n\n${ displayContents . map ( c => ` ${ c } ) . join ( '\n' ) } ) ;
93+ }
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