OCLint Xcode 9.3.1 故障

Question

I have the following Run Script, available at http://oclint-docs.readthedocs.io/en/stable/guide/xcode.html

source ~/.bash_profile
cd ${SRCROOT}
xcodebuild clean
xcodebuild | xcpretty -r json-compilation-database --output compile_commands.json
oclint-json-compilation-database -- -report-type xcode

But, when I execute it, I receive the following error. (1 failure) oclint: Not enough positional command line arguments specified

oclint version is OCLint version 0.13 and Xcode 9.3.1

Answer 1

I have found a way to generate a JSON compilation database from an Xcode project without relying on external tools. Tested with Xcode 13.4.1 on macOS 12 Monterey and Apple Silicon M1 Pro .

Inside your Xcode Build Settings, or when invoking xcodebuild you can set the following compiler flag:
OTHER_CFLAGS = $(inherited) -gen-cdb-fragment-path $(PROJECT_DIR)/CompilationDatabase

This instructs clang to emit a fragment of the compilation database for each compilation. These fragments can easily be combined into the final compilation database by using the following command:
sed -e '1s/^/[\'$'\n''/' -e '$s/,$/\'$'\n'']/' *.json > compile_commands.json

Of course it's a good idea to validate fragments, but that cannot be done without external tools.

For full details regarding compiler flags, validation of fragments, and references, check out the gist:
Generate a JSON Compilation Database from an Xcode project