[jira](FLINK-31177) To introduce a formatter for Markdown files

2023-02-22 Thread Zhongpu Chen
As I mentioned in FLINK-31177 (
https://issues.apache.org/jira/browse/FLINK-31177):

Currently, markdown files in *docs* are maintained and updated by many
contributors, and different people have varying code style taste. By the
way, as the syntax of markdown is not really strict, the styles tend to be
inconsistent.

To name a few,

   - Some prefer `*` to make a list item, while others may prefer `-`.
   - It is common to  leave many unnecessary blank lines and spaces.
   - To make a divider, the number of `-` can be varying.

To this end, I think it would be nicer to encourage or demand contributors
to format their markdown files before making a pull request.  Personally, I
think Prettier (https://prettier.io/) is a good candidate.
What do you think?

-- 
Zhongpu Chen


[discussion] To introduce a formatter for Markdown files

2023-02-22 Thread Zhongpu Chen
As I mentioned in FLINK-31177 (
https://issues.apache.org/jira/browse/FLINK-31177):

Currently, markdown files in *docs* are maintained and updated by many
contributors, and different people have varying code style taste. By the
way, as the syntax of markdown is not really strict, the styles tend to be
inconsistent.

To name a few,

   - Some prefer `*` to make a list item, while others may prefer `-`.
   - It is common to  leave many unnecessary blank lines and spaces.
   - To make a divider, the number of `-` can be varying.

To this end, I think it would be nicer to encourage or demand contributors
to format their markdown files before making a pull request.  Personally, I
think Prettier (https://prettier.io/) is a good candidate.
What do you think?

-- 
Zhongpu Chen


RE: Re: [discussion] To introduce a formatter for Markdown files

2023-02-22 Thread Zhongpu Chen
> I was wondering how we could let every contributor follow the same mk
rule.

As long as contributors install Prettier with the same version, markdown
files can be auto-formatted in the same way without extra working via the
`prettier --write **/*.md` command, and this can also be set as a part of
pre-commit hook. To check whether markdown files satisfy formatting
requirements, we can use `prettier --check **/*.md` where exit code 0 means
it does follow the styles.

> Is there any way to integrate the format check into our CI pipeline?

Yes, it is possible. I have tested using GitHub Actions, and I think Azure
pipelines also support this feature.

```yml
jobs:
  Check-MD-Format-Actions:
runs-on: ubuntu-latest
steps:
  - name: Check out repo code
uses: actions/checkout@v3
  - name: Prettify code
uses: creyD/prettier_action@v4.2
with:
  prettier_options: --check **/*.md
```

> Another thing is that some docs are written with Hugo syntax. Would they
work together with no conflict?

Well, it will never cause any conflict. Since Hugo syntax is a superset of
regular markdown syntax, and Prettier is compatible with CommonMark (
https://commonmark.org/) and GitHub Flavored Markdown.

On 2023/02/22 10:22:46 Jing Ge wrote:
> Hi Zhongpu,
>
> Thanks for starting this discussion. I was wondering how we could let
every
> contributor follow the same mk rule. I am not familiar with Prettier.
Would
> you like to help me understand some basic questions? Thanks.
>
> Is there any way to integrate the format check into our CI pipeline?
> Otherwise, it will be hard to control it. Another thing is that some docs
> are written with Hugo syntax [1]. Would they work together with no
conflict?
>
>
> Best regards,
> Jing
>
> [1] https://gohugo.io/
>
> On Wed, Feb 22, 2023 at 9:50 AM Zhongpu Chen  wrote:
>
> > As I mentioned in FLINK-31177 (
> > https://issues.apache.org/jira/browse/FLINK-31177):
> >
> > Currently, markdown files in *docs* are maintained and updated by many
> > contributors, and different people have varying code style taste. By the
> > way, as the syntax of markdown is not really strict, the styles tend to
be
> > inconsistent.
> >
> > To name a few,
> >
> >- Some prefer `*` to make a list item, while others may prefer `-`.
> >- It is common to  leave many unnecessary blank lines and spaces.
> >- To make a divider, the number of `-` can be varying.
> >
> > To this end, I think it would be nicer to encourage or demand
contributors
> > to format their markdown files before making a pull request.
Personally, I
> > think Prettier (https://prettier.io/) is a good candidate.
> > What do you think?
> >
> > --
> > Zhongpu Chen
> >
>


RE: Re: [discussion] To introduce a formatter for Markdown files

2023-02-22 Thread Zhongpu Chen
Hi Jing,

Sorry for the last reply in a messed up formatting, as I am not quite
familiar with the mail list usage.

First, as long as contributors install Prettier with the same version,
markdown files can be auto-formatted in the same way without extra working
via the `prettier --write **/*.md` command, and this can also be set as a
part of pre-commit hook. To check whether markdown files satisfy formatting
requirements, we can use `prettier --check **/*.md` where exit code 0 means
it does follow the styles.

Secondly, the format check can be integrated with the CI pipeline easily.
Here is an example using GitHub Actions, and I think the setting in Azure
pipelines is similar.

```yml
jobs:
  Check-MD-Format-Actions:
runs-on: ubuntu-latest
steps:
  - name: Check out repo code
uses: actions/checkout@v3
  - name: Use Node.js
uses: actions/setup-node@v3
with:
  node-version: "12.x"
  - name: Install pretty
run: npm i -g prettier
  - name: Prettify code
run: prettier --check **/*.md
```

At last, it will never cause any conflict. Prettier is compatible with
CommonMark (https://commonmark.org/) and GitHub Flavored Markdown.


On 2023/02/22 10:22:46 Jing Ge wrote:
> Hi Zhongpu,
>
> Thanks for starting this discussion. I was wondering how we could let
every
> contributor follow the same mk rule. I am not familiar with Prettier.
Would
> you like to help me understand some basic questions? Thanks.
>
> Is there any way to integrate the format check into our CI pipeline?
> Otherwise, it will be hard to control it. Another thing is that some docs
> are written with Hugo syntax [1]. Would they work together with no
conflict?
>
>
> Best regards,
> Jing
>
> [1] https://gohugo.io/
>
> On Wed, Feb 22, 2023 at 9:50 AM Zhongpu Chen  wrote:
>
> > As I mentioned in FLINK-31177 (
> > https://issues.apache.org/jira/browse/FLINK-31177):
> >
> > Currently, markdown files in *docs* are maintained and updated by many
> > contributors, and different people have varying code style taste. By the
> > way, as the syntax of markdown is not really strict, the styles tend to
be
> > inconsistent.
> >
> > To name a few,
> >
> >- Some prefer `*` to make a list item, while others may prefer `-`.
> >- It is common to  leave many unnecessary blank lines and spaces.
> >- To make a divider, the number of `-` can be varying.
> >
> > To this end, I think it would be nicer to encourage or demand
contributors
> > to format their markdown files before making a pull request.
Personally, I
> > think Prettier (https://prettier.io/) is a good candidate.
> > What do you think?
> >
> > --
> > Zhongpu Chen
> >
>


RE: Re: Re: [discussion] To introduce a formatter for Markdown files

2023-02-22 Thread Zhongpu Chen

Hi Jing,

Prettier is a versatile formatting tools with very limited options for 
markdown files. If we need to specify the rules, I think other tools, 
such as markdownlint [1], can be a better choice. As for markdownlint, 
we can specify many kinds of rules. Here is an example for `unordered 
list` whose style ID is MD004 [2].


```json

{ "default": true, "MD004": { "style": "asterisk" } }

```

Then markdown files only accept '*' for making a list item.

The specific formatting tools may be left as a vote later.

[1] https://github.com/DavidAnson/markdownlint

[2] https://github.com/DavidAnson/markdownlint/blob/main/doc/Rules.md


On 2023/02/22 21:22:02 Jing Ge wrote:
> Hi Zhongpu,
>
> Thanks for the clarification. Prettier looks fine for formatting mk 
files.

> Is there any way to validate rules like e.g. only using '*' for listing
> items in the CI pipeline?
>
> Best regards,
> Jing
>
> On Wed, Feb 22, 2023 at 2:28 PM Zhongpu Chen  wrote:
>
> > Hi Jing,
> >
> > Sorry for the last reply in a messed up formatting, as I am not quite
> > familiar with the mail list usage.
> >
> > First, as long as contributors install Prettier with the same version,
> > markdown files can be auto-formatted in the same way without extra 
working
> > via the `prettier --write **/*.md` command, and this can also be 
set as a
> > part of pre-commit hook. To check whether markdown files satisfy 
formatting
> > requirements, we can use `prettier --check **/*.md` where exit code 
0 means

> > it does follow the styles.
> >
> > Secondly, the format check can be integrated with the CI pipeline 
easily.
> > Here is an example using GitHub Actions, and I think the setting in 
Azure

> > pipelines is similar.
> >
> > ```yml
> > jobs:
> > Check-MD-Format-Actions:
> > runs-on: ubuntu-latest
> > steps:
> > - name: Check out repo code
> > uses: actions/checkout@v3
> > - name: Use Node.js
> > uses: actions/setup-node@v3
> > with:
> > node-version: "12.x"
> > - name: Install pretty
> > run: npm i -g prettier
> > - name: Prettify code
> > run: prettier --check **/*.md
> > ```
> >
> > At last, it will never cause any conflict. Prettier is compatible with
> > CommonMark (https://commonmark.org/) and GitHub Flavored Markdown.
> >
> >
> > On 2023/02/22 10:22:46 Jing Ge wrote:
> > > Hi Zhongpu,
> > >
> > > Thanks for starting this discussion. I was wondering how we could let
> > every
> > > contributor follow the same mk rule. I am not familiar with Prettier.
> > Would
> > > you like to help me understand some basic questions? Thanks.
> > >
> > > Is there any way to integrate the format check into our CI pipeline?
> > > Otherwise, it will be hard to control it. Another thing is that 
some docs

> > > are written with Hugo syntax [1]. Would they work together with no
> > conflict?
> > >
> > >
> > > Best regards,
> > > Jing
> > >
> > > [1] https://gohugo.io/
> > >
> > > On Wed, Feb 22, 2023 at 9:50 AM Zhongpu Chen  wrote:
> > >
> > > > As I mentioned in FLINK-31177 (
> > > > https://issues.apache.org/jira/browse/FLINK-31177):
> > > >
> > > > Currently, markdown files in *docs* are maintained and updated 
by many
> > > > contributors, and different people have varying code style 
taste. By

> > the
> > > > way, as the syntax of markdown is not really strict, the styles 
tend to

> > be
> > > > inconsistent.
> > > >
> > > > To name a few,
> > > >
> > > > - Some prefer `*` to make a list item, while others may prefer `-`.
> > > > - It is common to leave many unnecessary blank lines and spaces.
> > > > - To make a divider, the number of `-` can be varying.
> > > >
> > > > To this end, I think it would be nicer to encourage or demand
> > contributors
> > > > to format their markdown files before making a pull request.
> > Personally, I
> > > > think Prettier (https://prettier.io/) is a good candidate.
> > > > What do you think?
> > > >
> > > > --
> > > > Zhongpu Chen
> > > >
> > >
> >
>


[DISCUSS] Why does the Doc say "Flink requires at least Java 11 to build"?

2023-03-01 Thread Zhongpu Chen
I reported the same question at StackOverflow [1]. As I tested in my
computer, Java 8 is enough to build Flink from source.

[1] https://stackoverflow.com/questions/75601233/

-- 
Zhongpu Chen


RE: [DISCUSS] Why does the Doc say "Flink requires at least Java 11 to build"?

2023-03-01 Thread Zhongpu Chen
Joachim Sauer[1] gave a good answer to my question.

[1] https://stackoverflow.com/a/75604355/3741571

On 2023/03/01 13:21:33 Zhongpu Chen wrote:
> I reported the same question at StackOverflow [1]. As I tested in my
> computer, Java 8 is enough to build Flink from source.
>
> [1] https://stackoverflow.com/questions/75601233/
>
> --
> Zhongpu Chen
>