next/dist/esm/server/lib/incremental-cache/utils.js

The React Framework

export const getDerivedTags = (tags)=>{
    const derivedTags = [
        "/"
    ];
    for (const tag of tags || []){
        if (tag.startsWith("/")) {
            const pathnameParts = tag.split("/");
            // we automatically add the current path segments as tags
            // for revalidatePath handling
            for(let i = 1; i < pathnameParts.length + 1; i++){
                const curPathname = pathnameParts.slice(0, i).join("/");
                if (curPathname) {
                    derivedTags.push(curPathname);
                    if (!derivedTags.includes(curPathname)) {
                        derivedTags.push(curPathname);
                    }
                }
            }
        } else if (!derivedTags.includes(tag)) {
            derivedTags.push(tag);
        }
    }
    return derivedTags;
};

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