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CI: Check file checksum and lowestRecPPEM on sample patched font

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[why]
We 'manually' patch the font file after `fontforge` created it. This can
go wrong, for example we fail to create a correct new checksum.
Or we fail to patch the correct font property.

[how]
Also build `showttf` from the `fontforge` package and use it to extract
some font properties:
* Check the example patched font file checksum
* Compare the `lowestRecPPEM` of source to patched font file

[note]
`fontforge` set `lowestRecPPEM` always to 8 in generated fonts.
Hack has a value of 6.

Signed-off-by: Fini Jastrow <ulf.fini.jastrow@desy.de>
This commit is contained in:
Fini Jastrow 2022-03-11 12:04:22 +01:00 committed by Fini
parent 40138bee9f
commit 189bc8673f
1 changed files with 18 additions and 0 deletions
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18
.github/workflows/font-patcher.yml vendored
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@ -47,6 +47,16 @@ jobs:
sudo ninja sudo ninja
sudo ninja install sudo ninja install
- name: Compile showttf
run: |
cd "$GITHUB_WORKSPACE/fontforge-${{matrix.FontForgeRelease.version}}/contrib/fonttools"
mkdir build
cd build
cmake -Wno-dev -GNinja ..
ninja showttf
echo "SHOWTTF=$(realpath showttf)" >> $GITHUB_ENV
cd ../../..
- name: Setup additional dependencies - name: Setup additional dependencies
run: | run: |
pip install fonttools --quiet pip install fonttools --quiet
@ -83,6 +93,14 @@ jobs:
echo "FONT_FAMILY was ${{ env.FONT_FAMILY }}" echo "FONT_FAMILY was ${{ env.FONT_FAMILY }}"
[[ "${{ env.FONT_FAMILY }}" == "Hack Nerd Font" ]] && echo "Font Family matches expected" || exit 1 [[ "${{ env.FONT_FAMILY }}" == "Hack Nerd Font" ]] && echo "Font Family matches expected" || exit 1
- name: Spot check font properties
run: |
${{ env.SHOWTTF }} -c "$GITHUB_WORKSPACE/temp/Hack Regular Nerd Font Complete.ttf" | grep 'File Checksum.*diff=0\s*$' && echo "TTF checksum ok" || exit 1
ORIG_MINPPEM=$(${{ env.SHOWTTF }} -c "src/unpatched-fonts/Hack/Regular/Hack-Regular.ttf" | grep 'lowestppem=' )
PATCH_MINPPEM=$(${{ env.SHOWTTF }} -c "$GITHUB_WORKSPACE/temp/Hack Regular Nerd Font Complete.ttf" | grep 'lowestppem=' )
echo "${ORIG_MINPPEM} == ${PATCH_MINPPEM}"
[[ ${ORIG_MINPPEM} == ${PATCH_MINPPEM} ]] && echo "lowestRecPPEM matches" || exit 1
- name: Patcher monospaced - name: Patcher monospaced
run: | run: |
mkdir -p $GITHUB_WORKSPACE/temp/ mkdir -p $GITHUB_WORKSPACE/temp/