Bulk Auto-Update Templates in a Specified Folder (Reapply Template After Frontmatter instead of Append)

[LynetteCullens]

Run this code using RunJS

const folderPath = "Glossary/Variables";
const templatePath = "Templates/_Glossary Entry.md";

// Function to read the content of a template
async function getTemplateContent(templatePath) {
    const templateFile = app.vault.getAbstractFileByPath(templatePath);
    if (templateFile) {
        return await app.vault.read(templateFile);
    } else {
        new Notice(`Template not found at ${templatePath}`);
        return "";
    }
}

// Function to apply the template to the specified file
async function applyTemplateToFile(file, templateContent) {
    const fileContent = await app.vault.read(file);

    // Get the cache of the file
    const cache = app.metadataCache.getFileCache(file);

    // Determine where the content starts (after frontmatter if it exists)
    const contentStart = !cache.frontmatter 
        ? 0 
        : cache.frontmatterPosition.end.line + 1;

    // Split the content into before YAML and after YAML parts
    const beforeYaml = fileContent.split("\n").slice(0, contentStart).join("\n");

    // Combine the frontmatter, template content, and discard the original content after frontmatter
    const newContent = beforeYaml + "\n" + templateContent;
    await app.vault.modify(file, newContent);

    // Execute the Templater command on the file
    await app.workspace.openLinkText(file.path, "", false); // Open in the same pane
    app.commands.executeCommandById("templater-obsidian:replace-in-file-templater");
}

// Main function to execute on save
async function onFileSave() {
    const items = app.vault.getMarkdownFiles().filter(x => x.path.startsWith(folderPath));

    const templateContent = await getTemplateContent(templatePath);

    for (const file of items) {
        const folderName = file.parent.name; // Get the name of the folder
        const fileNameWithoutExtension = file.basename; // Get the name of the file without extension
        
        // Skip the file if its name is the same as its folder's name
        if (folderName === fileNameWithoutExtension) {
            new Notice(`Skipping file ${file.path} as it has the same name as its folder.`);
            continue;
        }

        await applyTemplateToFile(file, templateContent);
    }

    new Notice(`Template applied successfully to all eligible files in the '${folderPath}' folder.`);
}

// Run the main function
onFileSave().catch(error => new Notice(`Error: ${error.message}`));

Replace values for your template and folder path in the code