mirror of
https://github.com/vitorpamplona/amethyst.git
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Claude
e68e0130c7
The .deb post-processing scripts each unpacked the whole package with dpkg-deb -R and rebuilt it with -Zxz, recompressing the ~340 MB payload to change a few control lines. The release desktop leg paid that three times on x64 and four on arm64, before the one step that really edits the payload (StartupWMClass). scripts/deb-control.sh swaps just control.tar inside the ar archive and copies data.tar through. relax-deb-libicu.sh, add-deb-libegl-dep.sh and add-deb-gstreamer-deps.sh use it; add-deb-libegl-dep.sh finds the arm64 skiko with a file listing instead of unpacking. On the 1.18.0 x64 .deb the release chain goes from 156 s to 51 s, the output matches the old chain (control, maintainer scripts, payload modes/owners/sizes), and apt, gdebi and a real dpkg install accept it. Also fixed: - relax-deb-libicu.sh and add-deb-libegl-dep.sh printed "skip" and exited 0 on a missing file, so an unmatched glob shipped an unpatched .deb. They now fail, like add-deb-gstreamer-deps.sh already did. - smoke-test-desktop.yml says it tests the .deb release ships but never added the GStreamer deps; it does now. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01GtLex2qj7QL6sJX3BCswqh
56 lines
2.3 KiB
Bash
56 lines
2.3 KiB
Bash
#!/usr/bin/env bash
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# Shared by the scripts that rewrite a jpackage-built .deb's control file
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# (relax-deb-libicu.sh, add-deb-libegl-dep.sh, add-deb-gstreamer-deps.sh).
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# Source it; don't run it.
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#
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# A .deb is an ar archive of debian-binary, control.tar.* and data.tar.*. Those
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# scripts only change the control file, so this swaps the control member and
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# copies the data member through untouched. Unpacking and rebuilding the whole
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# package with dpkg-deb instead recompresses the ~340 MB payload every time,
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# about a minute of xz per script per .deb.
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#
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# deb_edit_control <deb> <edit-fn>
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# Runs `<edit-fn> <path-to-control>` on a copy of the control file. If the
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# file changed, writes it back into <deb>; otherwise leaves <deb> untouched.
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# Sets DEB_CONTROL_CHANGED to 1 or 0 to say which. Call it as a plain command:
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# bash ignores `set -e` inside a function called from `if` or `||`, so a
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# failure in here would go unnoticed there.
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deb_edit_control() {
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local deb="$1" edit="$2"
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local work deb_abs members=()
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mapfile -t members < <(ar t "$deb")
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if [[ ${#members[@]} -ne 3 || ${members[0]} != debian-binary ||
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${members[1]} != control.tar* || ${members[2]} != data.tar* ]]; then
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echo "error: unexpected .deb members in $deb: ${members[*]}" >&2
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exit 1
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fi
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deb_abs="$(cd "$(dirname "$deb")" && pwd)/$(basename "$deb")"
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work="$(mktemp -d)"
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(cd "$work" && ar x "$deb_abs")
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mkdir "$work/control"
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tar -xf "$work/${members[1]}" -C "$work/control"
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cp "$work/control/control" "$work/control.orig"
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"$edit" "$work/control/control"
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if cmp -s "$work/control/control" "$work/control.orig"; then
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DEB_CONTROL_CHANGED=0
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rm -rf "$work"
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return 0
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fi
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# Same member format dpkg-deb writes: root-owned, xz (readable by every dpkg
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# that ships in a supported Debian or Ubuntu), members in the order dpkg requires.
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rm -f "$work/${members[1]}"
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tar --format=gnu --owner=0 --group=0 --numeric-owner --sort=name -C "$work/control" -cf - . |
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xz -c > "$work/control.tar.xz"
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# Built beside it and moved over it, so an interrupted run leaves the original intact.
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(cd "$work" && ar rcD out.deb debian-binary control.tar.xz "${members[2]}")
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mv -f "$work/out.deb" "$deb"
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rm -rf "$work"
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DEB_CONTROL_CHANGED=1
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}
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