pulsar/script/generate-sources-gypi
Adam Roben 83ee2d23b3 Use gyp's rules functionality to compile .coffee/.cson files
Instead of finding and compiling all .coffee/.cson files in
script/copy-files-to-bundle, we now tell gyp how to do this for us. It
works like this:

1. Rakefile invokes the new script/generate-sources-gypi script to
   generate sources.gypi. This file lists all the .coffee/.cson files in
   the src, static, and vendor directories, as well as a new
   compiled_sources_dir variable that specifies where the compiled
   versions of the files should be placed.
2. atom.gyp includes sources.gypi.
3. atom.gyp has a new target, generated_sources, which contains all the
   .coffee/.cson files, and uses two rules to tell gyp how to compile
   them. The rules invoke the new script/compile-coffee and
   script/compile-cson files once for each file.
4. gyp generates one Makefile for each rule to actually perform the
   compilation.
5. script/copy-files-to-bundle now takes the compiled_sources_dir
   variable as an argument, and copies files both from there and from
   the repository into the Resources directory.

By putting the compilation into a different target, we can do it in
parallel with compiling/linking our binaries. And gyp automatically runs
make using -j$(sysctl -n hw.ncpu), so compilation of .coffee/.cson files
happens in parallel, too.

These changes reduce clean build time on my MacBook Pro from 55 seconds
to 46 seconds.
2013-03-04 11:32:06 -05:00

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Executable File

#!/bin/sh
set -e
cd "$(dirname $0)/.."
DIRS="src static vendor"
find_files() {
find ${DIRS} -type file -name ${1}
}
file_list() {
while read file; do
echo " '${file}',"
done
}
cat > sources.gypi <<EOF
{
'variables': {
'compiled_sources_dir': '<(INTERMEDIATE_DIR)/atom-resources',
'compiled_sources_dir_xcode': '\${INTERMEDIATE_DIR}/atom-resources',
'coffee_sources': [
$(find_files '*.coffee' | file_list)
],
'cson_sources': [
$(find_files '*.cson' | file_list)
],
},
}
EOF