47 lines
2.3 KiB
Bash
47 lines
2.3 KiB
Bash
 
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#!/bin/sh
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# cmake/macos/fixup-libobs-rpath.sh <plugin-binary>
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#
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# The from-source libobs build this project's macOS bootstrap runs
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# (cmake/common/buildspec_common.cmake) records its own install name (its
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# LC_ID_DYLIB) as a relative path -- "libobs/libobs.framework/Versions/A/libobs"
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# -- rather than an @rpath reference. That is a property of that from-source
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# OBS build itself, not something this project's own link step controls: the
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# LC_LOAD_DYLIB entry our plugin binary gets for a dependency is copied
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# straight from that dependency's own LC_ID_DYLIB by the linker. A relative
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# path is not resolvable at runtime from inside an OBS.app plugin bundle --
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# see the "macOS packaging gap" this script fixes, documented in README.md.
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#
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# Rewrite that one dependency entry to @rpath/libobs.framework/Versions/A/libobs.
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# stplugin_macos_finalize_bundle() (cmake/macos/helpers.cmake) gives the
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# plugin binary an LC_RPATH of @executable_path/../Frameworks, which resolves
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# @rpath against the *host* OBS.app's own Contents/Frameworks/libobs.framework
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# at runtime (@executable_path is always relative to the process's main
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# executable -- OBS.app/Contents/MacOS/obs -- not to this dlopen'd bundle, no
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# matter how deeply the .plugin is nested under
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# ~/Library/Application Support/obs-studio/plugins/<name>/bin/).
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#
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# The LiveKit runtime dylibs this same helper copies into the bundle's own
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# Contents/Frameworks are NOT touched here: client-sdk-cpp's own release
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# build already records their install names as @rpath references (confirmed
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# by otool -L on prior CI runs -- see README's "Where the macOS bootstrap
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# actually got to"), so the @loader_path/../Frameworks half of the same
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# LC_RPATH already resolves them with no rewrite needed.
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set -eu
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binary="$1"
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if [ ! -f "$binary" ]; then
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echo "fixup-libobs-rpath: no such file: $binary" >&2
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exit 1
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fi
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old_ref=$(otool -L "$binary" \
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| awk '/libobs\.framework\/Versions\/A\/libobs/ && $1 !~ /^@rpath/ {print $1; exit}')
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if [ -n "${old_ref:-}" ]; then
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echo "fixup-libobs-rpath: rewriting '$old_ref' -> '@rpath/libobs.framework/Versions/A/libobs' in $binary"
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install_name_tool -change "$old_ref" "@rpath/libobs.framework/Versions/A/libobs" "$binary"
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else
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echo "fixup-libobs-rpath: libobs dependency in $binary is already @rpath-relative (or was not found via otool -L); nothing to rewrite"
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fi
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