async findPrefix()

in vscode/qodana/src/core/sarif/index.ts [19:48]

• 30 lines of code
• 8 McCabe index (conditional complexity)

    async findPrefix(sarifFilePath: string): Promise<string | undefined> {
        let locations = await this.getLocations(sarifFilePath);
        let commonPrefixes = new Map<string, number>();
        for (let location of locations) {
            let prefix = await this.findFileByPathEnd(location);
            if (prefix) {
                let count = commonPrefixes.get(prefix);
                if (count) {
                    commonPrefixes.set(prefix, count + 1);
                } else {
                    commonPrefixes.set(prefix, 1);
                }
            }
        }
        if (commonPrefixes.size === 0) {
            return undefined;
        }
        let maxCount = 0;
        let maxPrefix = '';
        for (let [prefix, count] of commonPrefixes) {
            if (count > maxCount) {
                maxCount = count;
                maxPrefix = prefix;
            }
        }
        if (maxCount >= commonPrefixes.size / 2) {
            return maxPrefix;
        }
        return undefined;
    }