2021-11-30 19:22:51 +00:00
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local vim = require("vim")
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local g = vim.g
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local fn = vim.fn
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local cmd = vim.cmd
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-- Implement manual NERDTreeToggle, but use NERDTreeFind for openning.
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-- This makes NERDTree open with the current file pre-selected
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2021-12-05 21:33:23 +00:00
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Keymap("n", "<C-n>", "g:NERDTree.IsOpen() ? ':NERDTreeClose<CR>' : @% == '' ? ':NERDTree<CR>' : ':NERDTreeFind<CR>'", {expr=true})
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2021-11-30 19:22:51 +00:00
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g.NERDTreeShowHidden = 1
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g.NERDTreeMinimalUI = 1
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g.NERDTreeShowLineNumbers = 0
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g.NERDTreeWinSize = 25
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g.NERDTreeDirArrowExpandable = '►'
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g.NERDTreeDirArrowCollapsible = '▼'
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-- Disable devicons for nerdtree in TTY
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if not os.getenv("DISPLAY") then
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g.webdevicons_enable_nerdtree = 0
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else
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g.DevIconsEnableFoldersOpenClose = 1
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end
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-- If a directory is specified, start NERDTree
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cmd[[
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autocmd StdinReadPre * let s:std_in=1
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autocmd VimEnter * if argc() == 1 && isdirectory(argv()[0]) && !exists('s:std_in') |
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\ execute 'NERDTree' argv()[0] | wincmd p | enew | execute 'cd '.argv()[0] |
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\ endif
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]]
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-- Exit Vim if NERDTree is the only window left.
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cmd[[
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autocmd BufEnter * if tabpagenr('$') == 1 && winnr('$') == 1 && exists('b:NERDTree') && b:NERDTree.isTabTree() |
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\ quit | endif
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]]
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-- If another buffer tries to replace NerdTree, put it in another window, and bring back NerdTree.
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cmd[[
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autocmd BufEnter * if bufname('#') =~ 'NERD_tree_\d\+' && bufname('%') !~ 'NERD_tree_\d\+' && winnr('$') > 1 |
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\ let buf=bufnr() | buffer# | execute "normal! \<C-W>w" | execute 'buffer'.buf | endif
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]]
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-- Use $NERDTREE_BOOKMARKS environment variable for the location of .NERDTreeBookmarks file
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local bookmark_loc = os.getenv("NERDTREE_BOOKMARKS")
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if bookmark_loc then
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-- Check if file exists (lua doesn't have a built-in function for this)
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local file_exists = os.rename(bookmark_loc, bookmark_loc) and true or false
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if not file_exists then
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-- While this is possible with os.execute in lua, we would need to do some hacky
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-- things to capture output from os.execute and it's simpler to just use vimscript
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local dir = fn.system("dirname $NERDTREE_BOOKMARKS")
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fn.system({"mkdir", "-p", dir})
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fn.system("touch $NERDTREE_BOOKMARKS")
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end
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g.NERDTreeBookmarksFile = bookmark_loc
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end
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