@@ -6,11 +6,15 @@ var gulp = require('gulp'); // because this is a gulp task. duh.
66var HTMLtemplate = require ( 'html-template' ) ; // substack's html template implementation
77var md = require ( 'markdown-it' ) ( { html : true } ) ; // to convert markdown to html
88var source = require ( 'vinyl-source-stream' ) ; // used to convert substack's readStream to vinylStream
9- var replaceStream = require ( 'replacestream' ) ; // used to add an element to the html: making sure each page has it's own class if needed in css
109var moment = require ( 'moment-timezone' ) ;
1110var exec = require ( 'child_process' ) . exec
1211var utils = require ( '../util/template-utils.js' ) ;
1312var path = require ( 'path' ) ;
13+ var crypto = require ( "crypto" ) ;
14+ var gulpif = require ( 'gulp-if' ) ;
15+ var handlebars = require ( 'gulp-compile-handlebars' ) ;
16+ var buffer = require ( 'vinyl-buffer' ) ;
17+ var rename = require ( 'gulp-rename' ) ;
1418
1519gulp . task ( 'templates' , function ( ) {
1620 var separator = '<SEPARATOR>' ;
@@ -40,30 +44,59 @@ gulp.task('templates', function() {
4044 var html = md . render ( markdown ) ; // convert md string to html string
4145 var thisFileJSON = _ . cloneDeep ( templateJSON ) ; // clone in the template JSON object
4246 var pageTitle = thisFileJSON [ 'browser-title' ] ;
43- thisFileJSON = _ . omit ( thisFileJSON , 'browser-title' ) ;
44- var finalJSON = { } ;
45- _ . forEach ( thisFileJSON , function ( value , key ) {
46- finalJSON [ '[i18n-' + key + ']' ] = value ;
47- } )
48- finalJSON [ '[i18n-content]' ] = html ; // Attach md2html string to the interpolation object
49- var htmlObj = HTMLtemplate ( ) ; // finally using that holder for the template stream
50- i18nObj = htmlObj . template ( 'i18n' , {
51- include : false
52- } ) ; // same
5347 var filepath = __dirname . split ( 'gulp/tasks' ) [ 0 ] + 'source/templates/main.html' ; // get the main template file location. There can be multiple, this is just a proof of concept
5448 var destinationDirectory = path . dirname ( 'public/' + file . filepathArray . join ( '/' ) ) ;
55- var fileStream = fs . createReadStream ( filepath ) // pulling this code from substack's example on html-template
56- . pipe ( replaceStream ( '<title i18n-title>io.js - JavaScript I/O</title>' , '<title i18n-title>' + pageTitle + '</title>' ) )
57- . pipe ( replaceStream ( 'markdown-page=""' , 'markdown-page="' + file . filename + '"' ) ) // add css-triggerable attribute to body
58- . pipe ( replaceStream ( '[page-stylesheet]' , file . filename ) ) // require in specific stylesheet
59- . pipe ( replaceStream ( 'Build Time:' , 'Build Time: ' + buildTime ) )
60- . pipe ( replaceStream ( 'Commit Sha:' , 'Commit Sha: ' + commitSha ) )
61- . pipe ( replaceStream ( 'Commit Msg:' , 'Commit Msg: ' + commitMsg ) )
62- . pipe ( htmlObj )
63- . pipe ( source ( file . filename + '.html' ) ) // converting the readStream to a vinyl stream so gulp can write it back to the disk
64- . pipe ( gulp . dest ( destinationDirectory ) ) ; // dump it in the appropriate language subfolder
65- i18nObj . write ( finalJSON ) ; // write the interpolation JSON to the template
66- i18nObj . end ( ) ; // saving? this is taken from substack too.
49+ var hashes = [ ] ;
50+ var isChangedFile = function ( vinylFile ) {
51+ if ( vinylFile . isNull ( ) ) {
52+ return ;
53+ }
54+ if ( hashes [ vinylFile . path ] != null ) {
55+ console . log ( 'skipped' , vinylFile . path , hashes [ vinylFile . path ] ) ;
56+ return hashes [ vinylFile . path ] ;
57+ }
58+
59+ var currentContent = fs . readFileSync ( path . join ( destinationDirectory , file . filename + '.html' ) , { encoding : 'utf8' } ) ;
60+ var currentHash = currentContent . match ( / H a s h s u m : \s ( \b ( [ a - f 0 - 9 ] { 40 } ) \b ) / ) ;
61+ if ( currentHash && currentHash . length > 2 ) {
62+ currentHash = currentHash [ 1 ]
63+ } else {
64+ currentHash = null
65+ }
66+
67+ var contents = String ( vinylFile . contents ) ;
68+ var newHash = crypto
69+ . createHash ( "sha1" )
70+ . update ( vinylFile . contents , "binary" )
71+ . digest ( "hex" ) ;
72+
73+ var isChanged = ( currentHash !== newHash ) ;
74+
75+ console . log ( 'is changed' , vinylFile . path , currentHash , newHash )
76+
77+ if ( isChanged ) {
78+ contents = contents . replace ( / H a s h s u m : (?: \s + \b ( [ a - f 0 - 9 ] { 40 } ) \b ) ? / , `Hashsum: ${ newHash } )
79+ contents = contents . replace ( 'Build Time:' , `Build Time: ${ buildTime } )
80+ contents = contents . replace ( 'Commit Sha:' , `Commit Sha: ${ commitSha } )
81+ contents = contents . replace ( 'Commit Msg:' , `Commit Msg: ${ commitMsg } )
82+ vinylFile . contents = new Buffer ( contents ) ;
83+ }
84+ hashes [ vinylFile . path ] = isChanged ;
85+ return isChanged ;
86+ } ;
87+ var fileStream = gulp . src ( filepath ) // pulling this code from substack's example on html-template
88+ . pipe ( rename ( file . filename + '.html' ) ) // converting the readStream to a vinyl stream so gulp can write it back to the disk
89+ . pipe ( buffer ( ) )
90+ . pipe ( handlebars ( {
91+ i18n : thisFileJSON ,
92+ content : html ,
93+ lang : lang ,
94+ build : {
95+ markdownPage : file . filename ,
96+ pageStylesheet : file . filename
97+ }
98+ } ) )
99+ . pipe ( gulpif ( isChangedFile , gulp . dest ( destinationDirectory ) ) ) ; // dump it in the appropriate language subfolder
67100 } ) ;
68101 } ) ;
69102 } ) ;
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