guard against non-configured tmpl dirs, get bufname right

BACKLOG.md

@@ -5,6 +5,8 @@
 - [ ] tag search - search in general: just don't make it turing-complete 😁
 - [ ] calendar plugin: make weeks clickable!
     - [ ] show markers / color indicators for weeks with notes - in calendar.vim fork
+- [ ] option to toggle generated link format: [[title]] vs [[sub/dir/title]]
+- [ ] option to create notes in same subfolder as current note if there is one, see #38
 - [ ] maybe a virtual line in the 1st line that shows number of backlinks and maybe other interesting stuff
     - or put it as an extmark at the end of the first line, meh.
 - [ ] some cool buffer showing backlinks (and stuff?) [see also this comment](https://github.com/renerocksai/telekasten.nvim/discussions/23#discussioncomment-1754511)
@@ -19,6 +21,8 @@
 - [ ] yt video
 
 ## Dones
+- [x] ==backlinks are broken: they contain the home dir==
+    - but only if vim was started in the user's home dir, of which `home` was a subdir : used "%" instead of "%:p"
 - [x] better support for #tags [see also this comment](https://github.com/renerocksai/telekasten.nvim/discussions/23#discussioncomment-1754511)
     - at least we have a tag picker now
 - [x] follow external URLs

lua/telekasten.lua

@@ -270,12 +270,18 @@ local function path_to_linkname(p)
     local ln
 
     local special_dir = false
-    if num_path_elems(p:gsub(M.Cfg.dailies .. "/", "")) == 1 then
+    if
+        M.Cfg.dailies
+        and num_path_elems(p:gsub(M.Cfg.dailies .. "/", "")) == 1
+    then
         ln = p:gsub(M.Cfg.dailies .. "/", "")
         special_dir = true
     end
 
-    if num_path_elems(p:gsub(M.Cfg.weeklies .. "/", "")) == 1 then
+    if
+        M.Cfg.weeklies
+        and num_path_elems(p:gsub(M.Cfg.weeklies .. "/", "")) == 1
+    then
         ln = p:gsub(M.Cfg.weeklies .. "/", "")
         special_dir = true
     end
@@ -684,11 +690,11 @@ local function resolve_link(title)
     local filename = title .. M.Cfg.extension
     filename = filename:gsub("^%./", "") -- strip potential leading ./
 
-    if file_exists(M.Cfg.weeklies .. "/" .. filename) then
+    if M.Cfg.weeklies and file_exists(M.Cfg.weeklies .. "/" .. filename) then
         filename = M.Cfg.weeklies .. "/" .. filename
         fexists = true
     end
-    if file_exists(M.Cfg.dailies .. "/" .. filename) then
+    if M.Cfg.dailies and file_exists(M.Cfg.dailies .. "/" .. filename) then
         filename = M.Cfg.dailies .. "/" .. filename
         fexists = true
     end
@@ -1070,7 +1076,7 @@ end
 -- Create and yank a [[link]] from the current note.
 --
 local function YankLink()
-    local title = "[[" .. path_to_linkname(vim.fn.expand("%")) .. "]]"
+    local title = "[[" .. path_to_linkname(vim.fn.expand("%:p")) .. "]]"
     vim.fn.setreg('"', title)
     print("yanked " .. title)
 end
@@ -1256,7 +1262,7 @@ local function ShowBacklinks(opts)
     opts.close_after_yanking = opts.close_after_yanking
         or M.Cfg.close_after_yanking
 
-    local title = path_to_linkname(vim.fn.expand("%"))
+    local title = path_to_linkname(vim.fn.expand("%:p"))
     -- or vim.api.nvim_buf_get_name(0)
     builtin.live_grep({
         results_title = "Backlinks to " .. title,