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docs: Add note on a better M-x compile for chrome.

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We usually want to run the compile from the top directory, so here's a snippet
to allow you to do it. Probably needs some customization on the targets etc but
it's a start.

BUG=None
TEST=eval in emacs and M-x chromium-compile

Change-Id: I144db9f9e67a69643672b89f9719d1e4bd216830
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2954680
Reviewed-by: Benoit L <lizeb@chromium.org>
Commit-Queue: Junichi Uekawa <uekawa@chromium.org>
Cr-Commit-Position: refs/heads/master@{#892445}
This commit is contained in:
Junichi Uekawa
2021-06-15 05:54:42 +00:00
committed by Chromium LUCI CQ
parent 149c7c4fb5
commit 75d91cadfa
1 changed files with 13 additions and 3 deletions

16
docs/emacs.md

@ -286,7 +286,17 @@ for details.
See [ErcIrc](erc_irc.md).
## TODO
## Compilation with M-x compile
* Figure out how to make `M-x compile` default to
`cd /path/to/chrome/root; make -r chrome`.
It's usually useful to first find the top directory with locate-dominating-file,
and run `M-x compile`
```lisp
(defun chromium-compile ()
"Run compile for chromium."
(interactive)
(let ((chrome-dir (locate-dominating-file "." "chrome/BUILD.gn")))
(when chrome-dir
(let* ((default-directory chrome-dir))
(compile "ninja -C out/Debug chrome chrome_sandbox ")))))
```