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# Maintainer: Callum Parsey <callum@neoninteger.au>
# Contributor: [object Object] <objekt-Objekt@proton.me>
pkgname=libquotient-encryption
pkgver=0.7.2
pkgrel=2
pkgdesc="A Qt library to write cross-platform clients for Matrix (with experimental encryption support)"
arch=("x86_64" "aarch64")
url="https://github.com/quotient-im/libQuotient"
license=("LGPL2.1")
depends=("gcc-libs" "glibc" "libolm" "openssl" "qt5-base" "qt5-multimedia" "qtkeychain-qt5")
makedepends=("cmake")
provides=("libQuotientE2EE.so=${pkgver%.*}-64")
source=("https://github.com/quotient-im/libQuotient/archive/${pkgver}/${pkgname}-${pkgver}.tar.gz"
"namespace.patch")
sha256sums=("62ff42c8fe321e582ce8943417c1d815ab3f373a26fa0d99a5926e713f6a9382"
"cfb01b1855ac31fdfa614b3802b0cfc9890b92b7a4dade71f5f94f775773a94e")
prepare() {
# This patch makes the following changes to CMakeLists.txt:
# - Adds a new variable called `${LIBRARY_NAME}` which is currently set
# to `QuotientE2EE`, which will replace `${PROJECT_NAME}` in all cases
# where the name needs to be changed
# - Replaces the name of the library target with `${LIBRARY_NAME}` so that
# the generated shared objects are called `libQuotientE2EE.so*`
# - All references to `${PROJECT_NAME}` which really refer to the library
# target instead of the CMake project as a whole have been changed
# - Changed the output names of the `pkg-config` script and the output
# CMake files (i.e. `QuotientE2EEConfig.cmake`,
# `QuotientE2EETargets.cmake` and so on)
# - Changed the install directories for the config files and headers to use
# `QuotientE2EE` instead of `Quotient`
# - Disable generating files for integration with the Android Native
# Development Kit, as these files have generic names which will conflict
# with the official Arch `libquotient` package
# Also, the template files for the `pkg-config` script (`Quotient.pc.in`)
# and CMake script (`QuotientConfig.cmake.in`) have been adjusted to use
# `${LIBRARY_NAME}` where necessary instead of hard-coding `Quotient`.
patch -Np0 -d . -i namespace.patch
}
build() {
cmake -B build -S "libQuotient-${pkgver}" \
-DCMAKE_INSTALL_PREFIX=/usr \
-DCMAKE_BUILD_TYPE=None \
-DBUILD_SHARED_LIBS=1 \
-DBUILD_TESTING=OFF \
-DQuotient_ENABLE_E2EE=ON
cmake --build build
}
package() {
DESTDIR="${pkgdir}" cmake --install build
install -Dm644 "libQuotient-${pkgver}/README.md" "${pkgdir}/usr/share/doc/${pkgname}/README.md"
# The header files expect to be installed in a system directory called
# `Quotient` as evidenced by their nested include statements. Since we
# install the headers to `/usr/include/QuotientE2EE` to prevent conflicts
# with software that use the official non-encryption package, we need to
# adjust the include statements in the headers to make sure that the right
# ones are used. We can't do this in the `prepare()` step because the build
# system stores the headers alongside the source code in a directory called
# `Quotient` and we therefore cannot change the include statements without
# also moving the entire source tree. So we have to let the library compile
# with unmodified headers, and then change them after CMake has installed
# them to the right place.
#
# Reference:
# - `s/<expression>/<replacement>/g` means to replace all instances of text
# which match the provided basic regular expression with the provided
# replacement text
# - The content of the expression between `\(` and `\)` represents a
# sub-expression. The `\1` in the replacement means to include the text
# which matched the first sub-expression verbatim.
# - `[[:blank:]]*` matches an arbitrary amount of white-space (space or
# horizontal tab characters)
# - Places where a forward slash needs to be part of the expression or
# replacement text are escaped with a backslash, i.e. `\/`
# - So the expression reads: match all instances of text which are of the
# form `# include <Quotient/`, with everything but the final forward
# slash contained in a sub-expression, and with an arbitrary amount of
# white-space allowed
# - And the replacement text will be whatever text matched the first
# sub-expression (i.e. `# include <Quotient` but with the right amount
# of white-space) followed by `E2EE/`.
find "${pkgdir}/usr/include/QuotientE2EE" -name '*.h' -exec sed -i \
's/\(#[[:blank:]]*include[[:blank:]]*<Quotient\)\//\1E2EE\//g' '{}' \;
}
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