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doc: update backporting guide

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* also update STYLE_GUIDE comment about Em dashes

PR-URL: https://github.com/nodejs/node/pull/13749
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
This commit is contained in:
Refael Ackermann 2017-06-17 16:09:54 -04:00
parent b61f0a6741
commit e3ea0fc97b
2 changed files with 48 additions and 52 deletions
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6
doc/STYLE_GUIDE.md
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@ -40,8 +40,8 @@
* When documenting APIs, note the version the API was introduced in at
the end of the section. If an API has been deprecated, also note the first
version that the API appeared deprecated in.
* When using dashes, use emdashes ("—", Option+Shift+"-" on macOS) surrounded by
spaces, per the New York Times usage.
* When using dashes, use [Em dashes][] ("—" or `Option+Shift+"-"` on macOS)
surrounded by spaces, as per [The New York Times Manual of Style and Usage][].
* Including assets:
* If you wish to add an illustration or full program, add it to the
appropriate sub-directory in the `assets/` dir.
@ -68,3 +68,5 @@
[plugin]: http://editorconfig.org/#download
[Oxford comma]: https://en.wikipedia.org/wiki/Serial_comma
[Em dashes]: https://en.wikipedia.org/wiki/Dash#Em_dash
[The New York Times Manual of Style and Usage]: https://en.wikipedia.org/wiki/The_New_York_Times_Manual_of_Style_and_Usage

94
doc/guides/backporting-to-release-lines.md
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@ -6,58 +6,49 @@ Each release line has a staging branch that the releaser will use as a scratch
pad while preparing a release. The branch name is formatted as follows:
`vN.x-staging` where `N` is the major release number.
### Active staging branches
| Release Line | Staging Branch |
| ------------ | -------------- |
| `v7.x` | `v7.x-staging` |
| `v6.x` | `v6.x-staging` |
| `v4.x` | `v4.x-staging` |
*Note*: For the active staging branches see the [LTS Schedule][].
## What needs to be backported?
If a cherry-pick from master does not land cleanly on a staging branch, the
releaser will mark the pull request with a particular label for that release
line, specifying to our tooling that this pull request should not be included.
The releaser will then add a comment that a backport is needed.
line (e.g. `backport-requested-vN.x`), specifying to our tooling that this
pull request should not be included. The releaser will then add a comment
requesting that a backport pull request be made.
## What can be backported?
The "Current" release line is much more lenient than the LTS release lines in
what can be landed. Our LTS release lines (v4.x and v6.x as of March 2017)
require that commits mature in a Current release for at least 2 weeks before
they can be landed on staging. If the commit can not be cherry-picked from
master a manual backport will need to be submitted. Please see the [LTS Plan][]
for more information. After that time, if the commit can be cherry-picked
cleanly from master, then nothing needs to be done. If not, a backport pull
request will need to be submitted.
what can be landed. Our LTS release lines (see the [LTS Plan][])
require that commits mature in the Current release for at least 2 weeks before
they can be landed in an LTS staging branch. Only after "maturation" will those
commits be cherry-picked or backported.
## How to submit a backport pull request
For these steps, let's assume that a backport is needed for the v7.x release
line. All commands will use the v7.x-staging branch as the target branch.
In order to submit a backport pull request to another branch, simply replace
that with the staging branch for the targeted release line.
For the following steps, let's assume that a backport is needed for the v6.x
release line. All commands will use the `v6.x-staging` branch as the target
branch. In order to submit a backport pull request to another branch, simply
replace that with the staging branch for the targeted release line.
* Checkout the staging branch for the targeted release line
* Make sure that the local staging branch is up to date with the remote
* Create a new branch off of the staging branch
1. Checkout the staging branch for the targeted release line
2. Make sure that the local staging branch is up to date with the remote
3. Create a new branch off of the staging branch
```shell
# Assuming your fork of Node.js is checked out in $NODE_DIR,
# the origin remote points to your fork, and the upstream remote points
# to git://github.com/nodejs/node
cd $NODE_DIR
# Fails if you already have a v7.x-staging
git branch v7.x-staging upstream/v7.x-staging
git checkout v7.x-staging
git reset --hard upstream/v7.x-staging
# We want to backport pr #10157
git checkout -b backport-10157-to-v7.x
# If v6.x-staging is checked out `pull` should be used instead of `fetch`
git fetch upstream v6.x-staging:v6.x-staging -f
# Assume we want to backport PR #10157
git checkout -b backport-10157-to-v6.x v6.x-staging
```
* After creating the branch, apply the changes to the branch. The cherry-pick
will likely fail due to conflicts. In that case, you will see something this:
4. After creating the branch, apply the changes to the branch. The cherry-pick
will likely fail due to conflicts. In that case, you will see something
like this:
```shell
# Say the $SHA is 773cdc31ef
@ -68,25 +59,28 @@ hint: with 'git add <paths>' or 'git rm <paths>'
hint: and commit the result with 'git commit'
```
* Make the required changes to remove the conflicts, add the files to the index
using `git add`, and then commit the changes. That can be done with
`git cherry-pick --continue`.
* Leave the commit message as is. If you think it should be modified, comment
in the Pull Request.
* Make sure `make -j4 test` passes
* Push the changes to your fork and open a pull request.
* Be sure to target the `v7.x-staging` branch in the pull request.
5. Make the required changes to remove the conflicts, add the files to the index
using `git add`, and then commit the changes. That can be done with
`git cherry-pick --continue`.
6. Leave the commit message as is. If you think it should be modified, comment
in the Pull Request.
7. Make sure `make -j4 test` passes.
8. Push the changes to your fork
9. Open a pull request:
1. Be sure to target the `v6.x-staging` branch in the pull request.
2. Include the backport target in the pull request title in the following
format — `[v6.x backport] <commit title>`.
Example: `[v6.x backport] process: improve performance of nextTick`
3. Check the checkbox labelled "Allow edits from maintainers".
4. In the description add a reference to the original PR
5. Run a [`node-test-pull-request`][] CI job (with `REBASE_ONTO` set to the
default `<pr base branch>`)
10. If during the review process conflicts arise, use the following to rebase:
`git pull --rebase upstream v6.x-staging`
### Helpful Hints
* Please include the backport target in the pull request title in the following
format: `(v7.x backport) <commit title>`
* Ex. `(v4.x backport) process: improve performance of nextTick`
* Please check the checkbox labelled "Allow edits from maintainers".
This is the easiest way to to avoid constant rebases.
In the event the backport pull request is different than the original,
the backport pull request should be reviewed the same way a new pull request
is reviewed.
After the PR lands replace the `backport-requested-v6.x` label on the original
PR with `backported-to-v6.x`.
[LTS Schedule]: https://github.com/nodejs/LTS/#lts-schedule1
[LTS Plan]: https://github.com/nodejs/LTS#lts-plan
[`node-test-pull-request`]: https://ci.nodejs.org/job/node-test-pull-request/build