bootstrap: Update package list

Updated package list for March 2022.
Contains some small fixes for missing packages like transmission khal
and nsxiv that I have started using more heavily and removed some
redundancies, especially around the big X switch some time back.

Generally, no huge changes.

Fixes #1.

nvim/.config/nvim/lua/personal/openpdf.lua

@@ -0,0 +1,63 @@
+-- will open the pdf file for whatever file i am currently viewing.
+-- POC only and only useful in a ALMP context for now.
+local fn = vim.fn
+
+local function isDirectory(ftype)
+    if ftype == 'directory' then return true end
+    return false
+end
+
+local function isFile(ftype)
+    if ftype == 'file' then return true end
+    return false
+end
+
+local function cleanPath(path)
+    if path:match("^~") then path = os.getenv("HOME") .. path:sub(2) end
+    return path
+end
+-- Returns a set of all files at the target directory, as well
+-- as subdirectories if the recursive argument is set to true.
+-- Set has the form { "full/path/name.md" = "name.md" }
+local function get_all_files(path, recursive)
+    local f = {}
+    path = cleanPath(path)
+
+    local handle = vim.loop.fs_scandir(path)
+    while handle do
+        local name, ftype = vim.loop.fs_scandir_next(handle)
+        if not name then break end
+
+        if isDirectory(ftype) and recursive then
+            local subdir = get_all_files(path .. "/" .. name, true)
+            for k, v in pairs(subdir) do f[tostring(k)] = v end
+        end
+
+        if isFile(ftype) then f[tostring(path .. "/" .. name)] = name end
+    end
+
+    return f
+end
+
+local function get_basename()
+    local name = fn.expand("%:t")
+    return string.gsub(name, ".md", "")
+end
+
+local function find_pdf(dir, bibkey)
+    local pdfs = get_all_files(dir)
+    for k, v in pairs(pdfs) do if v:find(bibkey, 0, true) then return k end end
+end
+
+local function open_pdf(name) fn.jobstart("zathura '" .. name .. "'") end
+
+local function openCurrentPdf()
+    local fname = get_basename()
+    local pdf_path = find_pdf(
+                         "/home/marty/projects/jobs/almp/output/Literature",
+                         fname)
+    print(pdf_path)
+    open_pdf(pdf_path)
+end
+
+return {open = openCurrentPdf}