YCM config for rust-analyzer with automatic features detection

.ycm_extra_conf.py

from os import path

noDefaultFeatures = False
features = []

BASE = path.dirname(__file__)
try:
    check_file = open(path.join(BASE, "check"), "r").read()
    for line in check_file.splitlines():
        line = line.strip()

        if line.startswith("#"):
            continue

        if "--no-default-features" in line:
            noDefaultFeatures = True

        parts = line.split(" ")
        idx = None
        for (i, part) in enumerate(parts):
            if part == "--features":
                idx = i
                break

        if idx is not None and idx + 1 < len(parts):
            features = parts[idx + 1].split(",")
except:
    pass

print(noDefaultFeatures)
print(features)

def Settings( **kwargs ):
    if kwargs[ 'language' ] == 'rust':
        settings = { 'ls': { 'checkOnSave' : { 'enable': False } } }
        settings['ls']['cargo'] = { 'noDefaultFeatures': noDefaultFeatures, 'features': features }
        return settings

check

#!/usr/bin/bash
set -Eeuxo pipefail

# cargo check --no-default-features --features sinks-loki,loki-integration-tests --tests
# cargo check --no-default-features --features sinks-elasticsearch,es-integration-tests --tests
# cargo check --no-default-features --features sources-docker_logs,docker-logs-integration-tests --tests
cargo check --no-default-features --features sinks-gcp --tests
# cargo check --tests