[pazos]

Thanks for the info, chaley

Originally Posted by chaley

Is there something specific you are looking for?

Yeah. I tried to figure out why the code I was writting didn't work on my BQ cervantes 4. I thought than other devices could have the same issues.

Basically is a function to search calibre metadata from n calibre libraries. Works with connect to folder, our own backed in wireless client and most of calibre device drivers, but fails on my BQ.

In the end I wrote a helper function to workaround the limitation. now looks this way:

local function getAllMetadata(t)
    local books = {}
    for path, enabled in pairs(t) do
        if enabled and CalibreMetadata:init(path, true) then
            local books_path
            local ok_lpath, subdir = hasValidLpath(CalibreMetadata.drive.device_name)
            if not ok_lpath then
                books_path = path .. "/" .. subdir
            else
                books_path = path
            end
            for _, book in ipairs(CalibreMetadata.books) do
                local slim_book = {}
                slim_book.title = book.title
                slim_book.lpath = book.lpath
                slim_book.authors = book.authors
                slim_book.series = book.series
                slim_book.tags = book.tags
                slim_book.size = book.size
                slim_book.rootpath = books_path
                table.insert(books, #books + 1, slim_book)
            end
            CalibreMetadata:clean()
        end
    end
    return books
end

the helper function hasValidLpath is just a workaround for BQ devices:

-- some calibre drivers don't report a valid lpath
local function hasValidLpath(name)
    if type(name) ~= "string" then return true end
    local function deviceIs(kind)
        return string.match(string.upper(name), string.upper(kind))
    end
    if deviceIs("bq") then
        return false, "Books"
    else
        -- deviceIs "Kobo"/"Amazon"/"Folder"/"KOReader"
        return true
    end
end

The reason why I need the workaround is: when using BQ Cervantes device driver "metadata.calibre" is put on the root of the USB share. Books are placed on "Books/" but the lpath of books doesn't join "Books" to the name of the file.

If I disable the device driver and connect to the root dir with connect to folder then calibre is able to fix the issue and now books have the expected lpath.

I searched https://github.com/kovidgoyal/calibr...EBOOK_DIR_MAIN and I'm now pretty sure it's the fault on that specific driver and not something that need s special care on every device I'm trying to support.