Create compile_commands.json for MacVim

compiledb_macvim.sh

#!/bin/bash
set -e

work_dir=$(mktemp -d)

trap "rm -fr '${work_dir}'" EXIT

if [[ $1 = - ]]; then
    build_log=${work_dir}/build.log
    tee "${build_log}"
elif [[ -f $1 ]]; then
    build_log=$1
fi

if ! [[ -f "$build_log" ]]; then
    echo "Usage: $0 build_log" >&2
    exit 1
fi

build_c_log=${work_dir}/build.c.log
build_m_log=${work_dir}/build.m.log

sed '/^xcodebuild/,$d' "${build_log}" > "${build_c_log}"
sed -n '/^xcodebuild/,$p' "${build_log}" > "${build_m_log}"

compile_commands_c_json=${work_dir}/compile_commands.c.json
compile_commands_m_json=${work_dir}/compile_commands.m.json

compiledb -f -o "${compile_commands_c_json}" < "${build_c_log}"
xcpretty -r json-compilation-database -o "${compile_commands_m_json}" < "${build_m_log}"

python3 > compile_commands.json <<EOT
import copy
import json
import os
with open('${compile_commands_c_json}') as fp:
    r1 = json.load(fp)
    for item in r1:
        if item['file'] == 'gui.c':
            obj = copy.copy(item)
            obj['arguments'] = [arg.replace('gui.o', 'gui_macvim.o').replace('gui.c', 'gui_macvim.m') for arg in obj['arguments']]
            obj['file'] = 'gui_macvim.m'
            r1 += [obj]
        elif item['file'] == 'os_mac_conv.c':
            obj = copy.copy(item)
            obj['arguments'] = [arg.replace('mac_conv.o', 'macos.o').replace('mac_conv.c', 'macosx.m') for arg in obj['arguments']]
            obj['file'] = 'os_macosx.m'
            r1 += [obj]
with open('${compile_commands_m_json}') as fp:
    r2 = []
    r = json.load(fp)
    for item in r:
        obj = {
            'directory': os.path.dirname(item['file']),
            'arguments': item['command'].split(),
            'file': os.path.basename(item['file'])
        }
        if obj['directory'].endswith('/src/MacVim'):
            r2 += [obj]
print(json.dumps(r1 + r2, indent=1))
EOT