67 lines
2.3 KiB
Markdown
67 lines
2.3 KiB
Markdown
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date = "2021-08-18"
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tags = ["github"]
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title = "squoosh-cliとgh-actionsで画像表示を高速化してみる"
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slug = "github"
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+++
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squoosh-cliは、google製の画像圧縮ツールらしい。
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```sh
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$ npm i -g @squoosh/cli
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$ squoosh-cli --webp '{"quality":75,"target_size":0,"target_PSNR":0,"method":0,"sns_strength":50,"filter_strength":60,"filter_sharpness":0,"filter_type":1,"partitions":0,"segments":4,"pass":1,"show_compressed":0,"preprocessing":0,"autofilter":0,"partition_limit":0,"alpha_compression":1,"alpha_filtering":1,"alpha_quality":100,"lossless":0,"exact":0,"image_hint":0,"emulate_jpeg_size":0,"thread_level":0,"low_memory":0,"near_lossless":100,"use_delta_palette":0,"use_sharp_yuv":0}' -d out-dir img.jpg
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```
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size的にはjpgのほうがいいのですが、webpじゃないとpng透過が保存されないので、webpを使います。
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resizeは300x400だとスマホで見たとき粗くなってしまうため、600x800にしました。
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git-diffにcommit-hashを指定し、更新ファイルがあれば、squooshを実行します。gh-actionsはpush:pathsからトリガーできます。
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パラメータ、特に`quality`は適時、調整してください。
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```yml:.github/workflows/push-webp.yml
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on:
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push:
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paths:
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- 'static/img/*.png'
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jobs:
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comment:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v1
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- name: install squoosh
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env:
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WORKFLOW_FILE_PATH: ${{ github.workflow }}
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GITHUB_REPOSITORY: ${{ github.repository }}
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run: |
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npm i -g @squoosh/cli
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- name: convert webp
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run: |
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s=`git diff-tree --no-commit-id --name-only -r $GITHUB_SHA|grep "static/img/"|grep "\.png"`
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echo $s
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if [ -z "$s" ];then
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exit
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fi
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for i in $s
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do
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squoosh-cli --webp '{"quality":100}' -d ./static/img/min --resize '{width:600,height:800}' $i
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done
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git config --local user.email "action@github.com"
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git config --local user.name "GitHub Action"
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if [ -z "`git status -s`" ];then
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exit
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fi
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git add ./static/img/min
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git commit -m "push webp"
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- name: Push changes
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uses: ad-m/github-push-action@master
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with:
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github_token: ${{ secrets.GITHUB_TOKEN }}
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branch: src
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```
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