Commit 149f2cf
doc: add two tips for speeding the dev builds
Add two important tips for novice Node.js contributors
PR-URL: #36452
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>1 parent ad75c78 commit 149f2cf
1 file changed
Lines changed: 24 additions & 0 deletions
| Original file line number | Diff line number | Diff line change | |
|---|---|---|---|
@@ -30,6 +30,7 @@ file a new issue. | |||
| 30 | 30 | * [Building the documentation](#building-the-documentation) | |
| 31 | 31 | * [Building a debug build](#building-a-debug-build) | |
| 32 | 32 | * [Building an ASAN build](#building-an-asan-build) | |
| 33 | + * [Speeding up frequent rebuilds when developing](#speeding-up-frequent-rebuilds-when-developing) | ||
| 33 | 34 | * [Troubleshooting Unix and macOS builds](#troubleshooting-unix-and-macos-builds) | |
| 34 | 35 | * [Windows](#windows) | |
| 35 | 36 | * [Prerequisites](#prerequisites) | |
@@ -527,6 +528,29 @@ $ ./configure --debug --enable-asan && make -j4 | |||
| 527 | 528 | $ make test-only | |
| 528 | 529 | ``` | |
| 529 | 530 | ||
| 531 | + #### Speeding up frequent rebuilds when developing | ||
| 532 | + | ||
| 533 | + If you plan to frequently rebuild Node.js, especially if using several branches, | ||
| 534 | + installing `ccache` can help to greatly reduce build times. Set up with: | ||
| 535 | + ```console | ||
| 536 | + $ sudo apt install ccache # for Debian/Ubuntu, included in most Linux distros | ||
| 537 | + $ ccache -o cache_dir=<tmp_dir> | ||
| 538 | + $ ccache -o max_size=5.0G | ||
| 539 | + $ export CC="ccache gcc" # add to your .profile | ||
| 540 | + $ export CXX="ccache g++" # add to your .profile | ||
| 541 | + ``` | ||
| 542 | + This will allow for near-instantaneous rebuilds even when switching branches. | ||
| 543 | + | ||
| 544 | + When modifying only the JS layer in `lib`, it is possible to externally load it | ||
| 545 | + without modifying the executable: | ||
| 546 | + ```console | ||
| 547 | + $ ./configure --node-builtin-modules-path $(pwd) | ||
| 548 | + ``` | ||
| 549 | + The resulting binary won't include any JS files and will try to load them from | ||
| 550 | + the specified directory. The JS debugger of Visual Studio Code supports this | ||
| 551 | + configuration since the November 2020 version and allows for setting | ||
| 552 | + breakpoints. | ||
| 553 | + | ||
| 530 | 554 | #### Troubleshooting Unix and macOS builds | |
| 531 | 555 | ||
| 532 | 556 | Stale builds can sometimes result in `file not found` errors while building. | |
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