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Cherry-pick #7713 to 6.4: Simplify fields.yml generator #7777

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merged 2 commits into from
Sep 25, 2018

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kvch
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@kvch kvch commented Jul 27, 2018

Cherry-pick of PR #7713 to 6.4 branch. Original message:

This PR simplifies the process of generating a new fields.yml file for a Beat.

  • libbeat/fields.yml is not a dependency anymore
  • only fields.yml is written to disk

Changes in the asset files are due to different number of newlines in generated fields.yml files.

Interface changes of generator tools

Both dev-tools/cmd/asset/asset.go and libbeat/scripts/cmd/global_fields/main.go is changed. The first one has two new flags: -in, and -out. By default it reads from stdin and writes to stdout. Using the flags it's possible to read and write from other files. The second one has one new flag -out which specifies the output file. If it's not set, the output is written to stdout.

This makes it possible to generate asset files for Metricbeat without writing libbeat/fields.yml to disk. It will be useful in the future when more Beats have modular assets.

Closes #7671

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Failures in tests are fixed by #8425

kvch and others added 2 commits September 25, 2018 12:51
This PR simplifies the process of generating a new `fields.yml` file for a Beat.
* `libbeat/fields.yml` is not a dependency anymore
* only `fields.yml` is written to disk

Changes in the asset files are due to different number of newlines in generated `fields.yml` files.

### Interface changes of generator tools
Both `dev-tools/cmd/asset/asset.go` and `libbeat/scripts/cmd/global_fields/main.go` is changed. The first one has two new flags: `-in`, and `-out`. By default it reads from stdin and writes to stdout. Using the flags it's possible to read and write from other files. The second one has one new flag `-out` which specifies the output file. If it's not set, the output is written to stdout.

This makes it possible to generate asset files for Metricbeat without writing `libbeat/fields.yml` to disk. It will be useful in the future when more Beats have modular assets.

Closes elastic#7671
(cherry picked from commit 5797005)
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kvch commented Sep 25, 2018

Rebased to include all fixes.

@kvch kvch merged commit 357d046 into elastic:6.4 Sep 25, 2018
leweafan pushed a commit to leweafan/beats that referenced this pull request Apr 28, 2023
…ic#7777)

* Simplify fields.yml generator (elastic#7713)

This PR simplifies the process of generating a new `fields.yml` file for a Beat.
* `libbeat/fields.yml` is not a dependency anymore
* only `fields.yml` is written to disk

Changes in the asset files are due to different number of newlines in generated `fields.yml` files.

### Interface changes of generator tools
Both `dev-tools/cmd/asset/asset.go` and `libbeat/scripts/cmd/global_fields/main.go` is changed. The first one has two new flags: `-in`, and `-out`. By default it reads from stdin and writes to stdout. Using the flags it's possible to read and write from other files. The second one has one new flag `-out` which specifies the output file. If it's not set, the output is written to stdout.

This makes it possible to generate asset files for Metricbeat without writing `libbeat/fields.yml` to disk. It will be useful in the future when more Beats have modular assets.

Closes elastic#7671
(cherry picked from commit ec2e022)

* update fields of Packetbeat
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