Another stream

scratch/file_finder.lua

@@ -0,0 +1,84 @@
+local telescope = require('telescope')
+
+-- Goals:
+-- 1. You pick a directory
+-- 2. We `git ls-files` in that directory ONCE and ONLY ONCE to get the results.
+-- 3. You can fuzzy find those results w/ fzf
+-- 4. Select one and go to file.
+
+
+--[[
+ls_files_job.start()
+fzf_job.stdin = ls_files_job.stdout
+
+  self.stdin = vim.loop.new_pipe(false)
+  -> self.stdin = finder.stdout
+
+
+  -- Finder:
+  intermediary_pipe = self.stdout
+
+  -- repeat send this pipe when we want to get new filtering
+  self.stdin = intermediary_pipe
+
+
+  -- Filter + Sort
+  ok, we could do scoring + cutoff and have that always be the case.
+
+  OR
+
+  filter takes a function, signature (prompt: str, line: str): number
+
+  => echo $line | fzf --filter "prompt"
+      return stdout != ""
+
+  => lua_fuzzy_finder(prompt, line) return true if good enough
+
+  TODO: Rename everything to be more clear like the name below.
+  IFilterSorterAbstractFactoryGeneratorv1ProtoBeta
+
+--]]
+
+local string_distance = require('telescope.algos.string_distance')
+
+local file_finder = telescope.finders.new {
+  fn_command = function(self, prompt)
+    -- todo figure out how to cache this later
+    if false then
+      if self[prompt] == nil then
+        self[prompt] = nil
+      end
+
+      return self[prompt]
+    else
+      return 'git ls-files'
+    end
+  end,
+}
+
+local file_sorter = telescope.sorters.new {
+  scoring_function = function(self, prompt, line)
+    if prompt == '' then return 0 end
+    if not line then return -1 end
+
+    local dist = string_distance(prompt, line)
+    -- if dist > (0.75 * #line) and #prompt > 3 then
+    --   return -1
+    -- end
+
+    return dist
+  end
+}
+
+local file_previewer = telescope.previewers.vim_buffer
+
+local file_picker = telescope.pickers.new {
+  previewer = file_previewer
+}
+
+file_picker:find {
+  prompt = 'Find File',
+  finder = file_finder,
+  sorter = file_sorter,
+}
+

scratch/simple_rg.lua

@@ -5,37 +5,19 @@ local telescope = require('telescope')
 -- When updating the table, we should call filter on those items
 -- and then only display ones that pass the filter
 local rg_finder = telescope.finders.new {
-  fn_command = function(prompt)
+  fn_command = function(self, prompt)
     return string.format('rg --vimgrep %s', prompt)
   end,
 
   responsive = false
 }
 
-
 local p = telescope.pickers.new {
-  previewer = telescope.previewers.new(function(preview_win, preview_bufnr, results_bufnr, row)
-    assert(preview_bufnr)
-
-    local line = vim.api.nvim_buf_get_lines(results_bufnr, row, row + 1, false)[1]
-    local file_name = vim.split(line, ":")[1]
-
-    -- print(file_name)
-    -- vim.fn.termopen(
-    --   string.format("bat --color=always --style=grid %s"),
-    -- vim.fn.fnamemodify(file_name, ":p")
-    local bufnr = vim.fn.bufadd(file_name)
-    vim.fn.bufload(bufnr)
-
-    -- TODO: We should probably call something like this because we're not always getting highlight and all that stuff.
-    -- api.nvim_command('doautocmd filetypedetect BufRead ' .. vim.fn.fnameescape(filename))
-    vim.api.nvim_win_set_buf(preview_win, bufnr)
-    vim.api.nvim_win_set_option(preview_win, 'wrap', false)
-    vim.api.nvim_win_set_option(preview_win, 'winhl', 'Normal:Normal')
-    vim.api.nvim_win_set_option(preview_win, 'winblend', 20)
-    vim.api.nvim_win_set_option(preview_win, 'signcolumn', 'no')
-    vim.api.nvim_win_set_option(preview_win, 'foldlevel', 100)
-  end)
+  previewer = telescope.previewers.vim_buffer
+}
+p:find {
+  prompt = 'grep',
+  finder = rg_finder
 }
-p:find(rg_finder)
+
 

scratch/slow_proc.sh

@@ -4,3 +4,7 @@ sleep 1
 echo "cool"
 sleep 1
 echo "world"
+sleep 1
+echo "x"
+sleep 1
+echo "y"

scratch/string_distance_stuff.lua

@@ -0,0 +1,7 @@
+
+local string_distance = require('telescope.algos.string_distance')
+
+print(string_distance("hello", "help"))
+print(string_distance("hello", "hello"))
+print(string_distance("hello", "asdf"))
+