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Identify app.js source map using a special comment

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If we're going to minify third party code, the size heuristic may not hold
anymore.

(imported from commit 78ada1fee1446e78b3b1ad299ee3e975d1cd9002)
This commit is contained in:
Keegan McAllister
2013-04-05 17:52:13 -04:00
committed by Zev Benjamin
parent 5aafdc7cf9
commit 371d0dbaa0
2 changed files with 9 additions and 6 deletions
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10
zephyr/lib/minify.py
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@@ -12,13 +12,11 @@ class ClosureSourceMapCompressor(SubProcessCompressor):
# easily get either the input file names or the output file
# name. So we just pick a unique arbitrary name. This is
# okay because we can figure out from the source map file
# contents which JavaScript files it corresponds to.
# contents which JavaScript files it corresponds to. But we
# use a special comment to identify app.js, so that automatic
# source mapping works.
# As a hack to make things easier, assume that any large input
# corresponds to app.js. This is like 60 times bigger than
# any other input file, at present.
if len(js) > 100000:
if 'MINIFY-FILE-ID: zephyr.js' in js:
source_map_name = 'app.js.map'
else:
source_map_name = sha1(js).hexdigest() + '.map'