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Fabio LussiandClaude Opus 5.5
27d934e726
hdiutil makehybrid -hfs put a com.apple.FinderInfo on every file in the image, so the signed app inside the DMG (and any ditto copy of it) failed codesign --verify --deep --strict. Build the image with hdiutil create -srcfolder (retried, since create can hit "Resource busy" on CI), clear build-time xattrs before signing, and verify the app inside the finished DMG and a ditto copy of it with --strict. Ported from storytold/pdfcraft#823 and storytold/lightcraft#959. Fixes #176 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
45 lines
2.7 KiB
Markdown
45 lines
2.7 KiB
Markdown
# macOS DMG window
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What Finder shows when the DMG opens: a 660 × 400 pt background with the app icon and the
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`Applications` link side by side. `package.sh` copies these files into the image; nothing here is
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generated at build time, so the DMG builds with a plain `hdiutil create -srcfolder` (no Finder
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scripting on CI, nothing extra installed in the signing job).
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| File | What |
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|---|---|
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| `background.svg` | Source of the background: the app icon (`assets/app-icon/icon.svg`, linked, not copied) cropped as a cover on the SoundCraft colour field (`#14a9c4`), Ink and Paper. Its text (Inter, JetBrains Mono) is outlined, so rendering it needs no fonts. No paper grain: noise doesn't compress, and this keeps `background.tiff` small. |
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| `background.tiff` | The background at 1x (660 × 400 px, 72 dpi) and 2x (1320 × 800 px, 144 dpi) in one HiDPI TIFF (16-colour palette, Deflate, sRGB). Goes to `.background/background.tiff`. |
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| `dmg-layout.DS_Store` | Finder's view settings for the volume: window size, icon size 128, SoundCraft.app at (326, 205), `Applications` at (574, 205), and the background. Goes to `.DS_Store` in the image; named so it isn't mistaken for (or ignored like) a Finder-generated `.DS_Store`. |
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| `generate.py` | Writes `background.tiff` and `dmg-layout.DS_Store` from the SVG and the layout above. |
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## The volume name has no version
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The mounted volume is called `SoundCraft`, not `SoundCraft <version>`. The layout points at the background
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through an alias that includes the volume name, and Finder resolves it by that name: with a
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versioned name the window keeps its size and icon positions but shows no background (tested).
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The DMG file name (`soundcraft-<version>-macos-<arch>.dmg`) still carries the version.
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## Rules
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- **Finder draws the icon labels in black in light and dark mode** when a window has a background,
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so the area under both icons stays light (Paper).
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- **Nothing goes inside the icon boxes:** artwork keeps 10 pt clear of each 128 pt icon box and of
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the label strip under it.
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## Regenerate
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Edit `background.svg` (or the layout constants in `generate.py`), then run, on any OS:
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```sh
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pip install 'pillow>=12' ds_store==1.3.3 mac_alias==2.2.3
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python3 packaging/macos/dmg/generate.py # needs resvg on PATH
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```
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Both outputs are byte-for-byte reproducible and carry nothing from the machine that ran it: the
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SVG renders without any fonts, and `dmg-layout.DS_Store` is written from scratch, its background
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alias holding only the volume name and `/.background/background.tiff`. If you add text to the SVG,
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outline it (`usvg` from resvg converts text to paths). The window is 660 × 432 with Finder's 32 pt
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title bar; the content area is 660 × 400.
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This follows VectorCraft's `packaging/macos/dmg/` (storytold/vectorcraft#493).
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