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37 lines
1.7 KiB
Markdown
37 lines
1.7 KiB
Markdown
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### tools/gritsettings README
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This directory contains several files that apply global to the Chrome resource
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generation system (which uses GRIT - see tools/grit).
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**resource_ids**: This file is used to assign starting resource ids for
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resources and strings used by Chromium. This is done to ensure that resource ids
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are unique across all the grd files. If you are adding a new grd file, please
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add a new entry to this file.
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**translation_expectations.pyl**: Specifies which grd files should be translated
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and into which languages they should be translated. Used by the internal
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translation process.
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**startup_resources_[platform].txt**: These files provide a pre-determined
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resource id ordering that will be used by GRIT when assigning resources ids. The
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goal is to have the resource loaded during Chrome startup be ordered first in
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the .pak files, so that fewer page faults are suffered during Chrome start up.
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To update or generate one of these files, follow these instructions:
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1. Build a Chrome official release build and launch it with command line:
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`--print-resource-ids` and save the output to a file (e.g. res.txt).
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2. Generate the startup_resources_[platform].txt via the following command
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(you can redirect its output to the new file location):
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`
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tools/grit/grit/format/gen_predetermined_ids.py res_ids.txt out/gn
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`
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In the above command, res_ids.txt is the file produced in step 1 and out/gn
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is you Chrome build directory where you compiled Chrome. The output of the
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command can be added as a new startup_resource_[platform]
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3. If this is a new file, modify `tools/grit/grit_rule.gni` to set its path
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via `grit_predetermined_resource_ids_file` for the given platform.
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