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mathjs/gulpfile.js at algebraic_differentiation · JavaScriptIOT/mathjs · GitHub
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gulpfile.js
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133 lines (110 loc) · 3.46 KB
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gulpfile.js
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var
fs
=
require
(
'fs'
)
,
gulp
=
require
(
'gulp'
)
,
gutil
=
require
(
'gulp-util'
)
,
webpack
=
require
(
'webpack'
)
,
uglify
=
require
(
'uglify-js'
)
,
docgenerator
=
require
(
'./tools/docgenerator'
)
;
var
ENTRY
=
'./index.js'
,
HEADER
=
'./lib/header.js'
,
VERSION
=
'./lib/version.js'
,
FILE
=
'math.js'
,
FILE_MIN
=
'math.min.js'
,
FILE_MAP
=
'math.map'
,
DIST
=
'./dist'
,
REF_SRC
=
'./lib/'
,
REF_DEST
=
'./docs/reference/functions/'
,
REF_ROOT
=
'./docs/reference/'
,
MATH_JS
=
DIST
+
'/'
+
FILE
;
// generate banner with today's date and correct version
function
createBanner
(
)
{
var
today
=
gutil
.
date
(
new
Date
(
)
,
'yyyy-mm-dd'
)
;
// today, formatted as yyyy-mm-dd
var
version
=
require
(
'./package.json'
)
.
version
;
return
String
(
fs
.
readFileSync
(
HEADER
)
)
.
replace
(
'@@date'
,
today
)
.
replace
(
'@@version'
,
version
)
;
}
// generate a js file containing the version number
function
updateVersionFile
(
)
{
var
version
=
require
(
'./package.json'
)
.
version
;
// generate file with version number
fs
.
writeFileSync
(
VERSION
,
'module.exports = \''
+
version
+
'\';\n'
+
'// Note: This file is automatically generated when building math.js.\n'
+
'// Changes made in this file will be overwritten.\n'
)
;
}
var
bannerPlugin
=
new
webpack
.
BannerPlugin
(
createBanner
(
)
,
{
entryOnly
:
true
,
raw
:
true
}
)
;
var
webpackConfig
=
{
entry
:
ENTRY
,
output
:
{
library
:
'math'
,
libraryTarget
:
'umd'
,
path
:
DIST
,
filename
:
FILE
}
,
externals
:
[
'crypto'
// is referenced by decimal.js
]
,
plugins
:
[
bannerPlugin
]
,
cache
:
true
}
;
var
uglifyConfig
=
{
outSourceMap
:
FILE_MAP
,
output
:
{
comments
:
/
@
l
i
c
e
n
s
e
/
}
}
;
// create a single instance of the compiler to allow caching
var
compiler
=
webpack
(
webpackConfig
)
;
gulp
.
task
(
'bundle'
,
[
'validate'
]
,
function
(
cb
)
{
// update the banner contents (has a date in it which should stay up to date)
bannerPlugin
.
banner
=
createBanner
(
)
;
updateVersionFile
(
)
;
compiler
.
run
(
function
(
err
,
stats
)
{
if
(
err
)
{
gutil
.
log
(
err
)
;
}
gutil
.
log
(
'bundled '
+
MATH_JS
)
;
cb
(
)
;
}
)
;
}
)
;
gulp
.
task
(
'minify'
,
[
'bundle'
]
,
function
(
)
{
var
oldCwd
=
process
.
cwd
(
)
;
process
.
chdir
(
DIST
)
;
try
{
var
result
=
uglify
.
minify
(
[
FILE
]
,
uglifyConfig
)
;
fs
.
writeFileSync
(
FILE_MIN
,
result
.
code
)
;
fs
.
writeFileSync
(
FILE_MAP
,
result
.
map
)
;
gutil
.
log
(
'Minified '
+
FILE_MIN
)
;
gutil
.
log
(
'Mapped '
+
FILE_MAP
)
;
}
catch
(
e
)
{
throw
e
;
}
finally
{
process
.
chdir
(
oldCwd
)
;
}
}
)
;
// test whether the docs for the expression parser are complete
gulp
.
task
(
'validate'
,
function
(
cb
)
{
var
child_process
=
require
(
'child_process'
)
;
// this is run in a separate process as the modules need to be reloaded
// with every validation (and required modules stay in cache).
child_process
.
execFile
(
'node'
,
[
'./tools/validate'
]
,
function
(
err
,
stdout
,
stderr
)
{
if
(
err
instanceof
Error
)
{
throw
err
;
}
process
.
stdout
.
write
(
stdout
)
;
process
.
stderr
.
write
(
stderr
)
;
cb
(
)
;
}
)
;
}
)
;
gulp
.
task
(
'docs'
,
function
(
)
{
docgenerator
.
iteratePath
(
REF_SRC
,
REF_DEST
,
REF_ROOT
)
;
}
)
;
// The watch task (to automatically rebuild when the source code changes)
// Does only generate math.js, not the minified math.min.js
gulp
.
task
(
'watch'
,
[
'bundle'
]
,
function
(
)
{
gulp
.
watch
(
[
'index.js'
,
'lib/**/*.js'
]
,
[
'bundle'
]
)
;
}
)
;
// The default task (called when you run `gulp`)
gulp
.
task
(
'default'
,
[
'bundle'
,
'minify'
]
)
;
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