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docs: remove sccache info from build instructions (#23297)

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Jeremy Apthorp 2020-04-28 09:17:50 -07:00 committed by GitHub
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docs/development/build-instructions-gn.md
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@ -24,13 +24,12 @@ try to download a Google-internal version that only Googlers have access to).
[depot-tools]: http://commondatastorage.googleapis.com/chrome-infra-docs/flat/depot_tools/docs/html/depot_tools_tutorial.html#_setting_up
## Cached builds (optional step)
### Setting up the git cache
### GIT\_CACHE\_PATH
If you plan on building Electron more than once, adding a git cache will
speed up subsequent calls to `gclient`. To do this, set a `GIT_CACHE_PATH`
environment variable:
If you plan on checking out Electron more than once (for example, to have
multiple parallel directories checked out to different branches), using the git
cache will speed up subsequent calls to `gclient`. To do this, set a
`GIT_CACHE_PATH` environment variable:
```sh
$ export GIT_CACHE_PATH="${HOME}/.git_cache"
@ -38,22 +37,10 @@ $ mkdir -p "${GIT_CACHE_PATH}"
# This will use about 16G.
```
### sccache
Thousands of files must be compiled to build Chromium and Electron.
You can avoid much of the wait by reusing Electron CI's build output via
[sccache](https://github.com/mozilla/sccache). This requires some
optional steps (listed below) and these two environment variables:
```sh
export SCCACHE_BUCKET="electronjs-sccache-ci"
export SCCACHE_TWO_TIER=true
```
## Getting the code
```sh
$ mkdir electron-gn && cd electron-gn
$ mkdir electron && cd electron
$ gclient config --name "src/electron" --unmanaged https://github.com/electron/electron
$ gclient sync --with_branch_heads --with_tags
# This will take a while, go get a coffee.