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16 changes: 10 additions & 6 deletions deps/ngtcp2/README.md
Original file line number Diff line number Diff line change
Expand Up @@ -9,22 +9,26 @@ The sources are pulled from:
* nghttp3: https://github.com/ngtcp2/nghttp3

In both the `ngtcp2` and `nghttp3` git repos, the active development occurs
in the default branch (currently named `master` in each).
in the default branch (currently named `main` in each). Tagged versions do not
always point to the default branch.

We only use a subset of the sources for each.

## Updating

The `nghttp3` library depends on `ngtcp2`. Both should always be updated
together. From `ngtcp2` we only want the contents of the `lib` and `crypto`
directories; from `nghttp3` we only want the contents of the `lib`.
directories; from `nghttp3` we only want the contents of the `lib` directory.

After updating either dependency, check if any source files or include
directories have been added or removed and update `ngtcp2.gyp` accordingly.

### Updating ngtcp2

To update ngtcp2:
To update ngtcp2, replace `v0.8.1` with the desired git tag:

```sh
$ git clone https://github.com/ngtcp2/ngtcp2
$ git clone --depth=1 --branch=v0.8.1 https://github.com/ngtcp2/ngtcp2
$ cd ngtcp2
$ autoreconf -i
$ ./configure --prefix=$PWD/build --enable-lib-only
Expand All @@ -34,10 +38,10 @@ $ cp -R crypto/* ../node/deps/ngtcp2/ngtcp2/crypto/

### Updating nghttp3

To update ngtcp2:
To update nghttp3, replace `v0.7.0` with the desired git tag:

```sh
$ git clone https://github.com/ngtcp2/nghttp3
$ git clone --depth=1 --branch=v0.7.0 https://github.com/ngtcp2/nghttp3
$ cd nghttp3
$ autoreconf -i
$ ./configure --prefix=$PWD/build --enable-lib-only
Expand Down