Cargo-lipo v3 compat

[eoger]

cargo-lipo was re-implemented in TimNN/cargo-lipo#25, this PR makes our build process compatible with this new version.

Major changes:

• We now build the rust library in debug or release mode following the XCode's project mode.
• We also only build the rust lipoed library for the architectures XCode is building for, instead of building every architecture.
• There's no need to run env -i anymore to sanitize the PATH before running cargo lipo in XCode run script phase.

[thomcc]

Why are we changing these paths to debug?

[eoger]

Why are we changing these paths to debug?

The two first changed paths don't really matter as we will grab the lib in the right folder thanks to LIBRARY_SEARCH_PATHS.

The LIBRARY_SEARCH_PATHS change is missing some context: if you open the current version of project.pbxproj, you will see that we currently have the following search paths defined:
if debug LIBRARY_SEARCH_PATHS = [release]
if release LIBRARY_SEARCH_PATHS = [release]

[thomcc]

Okay, so long as these debug paths are only used for debug builds and not release builds.

Do we need to do this for logins too?

[eoger]

Do we need to do this for logins too?

Nope as we can't use cargo lipo because of rust-lang/rust#55235 ☹️ (can't pass SQLCIPHER_LIB_DIR=/target/universal/...), so I'm doing a manual lipo:

application-services/components/logins/ios/Logins.xcodeproj/project.pbxproj

Line 194 in 13f8fa8

shellScript = "cd \"$SRCROOT\"/../ffi\n# We can't use cargo lipo because we can't link to universal libraries :(\n# https://github.com/rust-lang/rust/issues/55235\nLIBS_ARCHS=(\"i386\" \"x86_64\" \"armv7\" \"arm64\")\nIOS_TRIPLES=(\"i386-apple-ios\" \"x86_64-apple-ios\" \"armv7-apple-ios\" \"aarch64-apple-ios\")\nfor i in \"${!LIBS_ARCHS[@]}\"; do\n LIB_ARCH=${LIBS_ARCHS[$i]}\n env -i PATH=$PATH \\\n OPENSSL_STATIC=1 \\\n OPENSSL_DIR=\"$SRCROOT\"/../../../libs/ios/$LIB_ARCH/openssl \\\n SQLCIPHER_LIB_DIR=\"$SRCROOT\"/../../../libs/ios/$LIB_ARCH/sqlcipher/lib \\\n SQLCIPHER_INCLUDE_DIR=\"$SRCROOT\"/../../../libs/ios/$LIB_ARCH/sqlcipher/include \\\n \"$HOME\"/.cargo/bin/cargo build --lib --release --target ${IOS_TRIPLES[$i]}\ndone\nmkdir -p \"$SRCROOT\"/../../../target/universal/release\nlipo -create -output \"$SRCROOT\"/../../../target/universal/release/liblogins_ffi.a \\\n\"$SRCROOT\"/../../../target/i386-apple-ios/release/liblogins_ffi.a \\\n\"$SRCROOT\"/../../../target/x86_64-apple-ios/release/liblogins_ffi.a \\\n\"$SRCROOT\"/../../../target/armv7-apple-ios/release/liblogins_ffi.a \\\n\"$SRCROOT\"/../../../target/aarch64-apple-ios/release/liblogins_ffi.a \\\n";