Nearly there!!

config/vis/build.lua

@@ -1,129 +1,68 @@
--- ~/.config/vis/build.lua
+-- Runs ./build.sh from vis's cwd (project root), logs the output for the
--- Runs the nearest build.sh, shows the output, and can jump to the first
+-- error picker (pickers.errors), and returns to vis on Enter/Esc.
--- Odin error. Loaded from visrc.lua.
-
 local M = {}
 
--- args: list of flags passed through to build.sh, e.g. { 'run' }
+-- last build's output; pickers.errors() reads it
+M.log = '/tmp/vis-build.log'
+
+-- single-quote a string for the shell
+local function q(s) return "'" .. s:gsub("'", "'\\''") .. "'" end
+
+-- write a raw escape sequence straight to the terminal
+local function tty(s)
+	local t = io.open('/dev/tty', 'w')
+	if t then t:write(s) t:close() end
+end
+
+local function exists(path)
+	local f = io.open(path, 'r')
+	if f then f:close() end
+	return f ~= nil
+end
+
+-- args: flags passed through to build.sh, e.g. { 'run' }
 function M.run(args)
-	-- find the nearest build.sh, searching upward from vis's working dir
+	if not exists('build.sh') then
-	local p = io.popen('pwd')
+		vis:info('No build.sh in current directory')
-	local dir = p and p:read('*l')
-	if p then p:close() end
-	while dir and dir ~= '' do
-		local f = io.open(dir .. '/build.sh', 'r')
-		if f then
-			f:close()
-			break
-		end
-		dir = dir:match('^(.*)/[^/]*$')
-	end
-	if not dir or dir == '' then
-		vis:info('No build.sh found in this directory or any parent')
 		return
 	end
 
-	-- save the current buffer so the build sees your latest changes
+	-- save so the build sees your latest changes
-	local win = vis.win
+	local file = vis.win and vis.win.file
-	if win and win.file and win.file.modified and win.file.path then
+	if file and file.modified and file.path then vis:command('w') end
-		vis:command('w')
-	end
 
-	-- shell-quote each flag and the directory
+	local parts = {}
-	local quoted = {}
+	for _, a in ipairs(args or {}) do parts[#parts + 1] = q(a) end
-	for _, a in ipairs(args) do
+	local argstr = table.concat(parts, ' ')
-		table.insert(quoted, "'" .. a:gsub("'", "'\\''") .. "'")
-	end
-	local argstr = table.concat(quoted, ' ')
-	local qdir = "'" .. dir:gsub("'", "'\\''") .. "'"
-	local display = ('./build.sh ' .. table.concat(args, ' ')):gsub('%s+$', '')
-	local qdisplay = "'" .. display:gsub("'", "'\\''") .. "'"
-
-	local out_file = os.tmpname()
-	local status_file = os.tmpname()
-	local answer_file = os.tmpname()
 
 	local script = table.concat({
-		'saved=$(stty -g)',
+		'saved=$(stty -g); stty sane',
-		'stty sane',
+		-- script runs the build on a pty (colors stay on) and logs it to M.log
-		'cd ' .. qdir .. ' || exit 1',
+		'script -qefc ' .. q('bash ./build.sh ' .. argstr) .. ' ' .. q(M.log),
-		'printf "\\n\\033[1m$ %s\\033[0m  (in %s)\\n\\n" ' .. qdisplay .. ' ' .. qdir,
+		'st=$?',
-		'{ if [ -x ./build.sh ]; then ./build.sh ' .. argstr
+		[[printf '\n[exit %s]  enter/esc: back to vis ' "$st"]],
-			.. '; else bash ./build.sh ' .. argstr .. '; fi; echo $? > \''
+		[[while IFS= read -rsn1 k; do [ -z "$k" ] || [ "$k" = $'\e' ] && break; done]],
-			.. status_file .. "'; } 2>&1 | tee '" .. out_file .. "'",
-		"st=$(cat '" .. status_file .. "')",
-		'if [ "$st" = 0 ]; then',
-		'  printf "\\n\\033[32m[build ok]\\033[0m  enter: back to vis "',
-		'else',
-		'  printf "\\n\\033[31m[build failed: exit %s]\\033[0m  '
-			.. 'enter: back to vis  |  e + enter: jump to first error " "$st"',
-		'fi',
-		'read -r ans',
-		"printf '%s' \"$ans\" > '" .. answer_file .. "'",
 		'stty "$saved"',
 	}, '\n')
 
-	-- leave the alternate screen so the build output lands in your normal
+	-- leave the alt screen and clear it, so each run starts fresh and the
-	-- terminal scrollback, run it, then come back to vis
+	-- output lands in normal scrollback; run; come back to vis
-	local tty = io.open('/dev/tty', 'w')
+	tty('\27[?1049l\27[H\27[2J')
-	if tty then tty:write('\27[?1049l') tty:close() end
+	os.execute('bash -c ' .. q(script) .. ' </dev/tty >/dev/tty 2>&1')
-
+	tty('\27[?1049h')
-	os.execute('{\n' .. script .. '\n} </dev/tty >/dev/tty 2>&1')
-
-	tty = io.open('/dev/tty', 'w')
-	if tty then tty:write('\27[?1049h') tty:close() end
 	vis:redraw()
-
-	-- read back exit status and the key you answered with
-	local f = io.open(status_file, 'r')
-	local status = f and f:read('*l')
-	if f then f:close() end
-	f = io.open(answer_file, 'r')
-	local answer = f and f:read('*l')
-	if f then f:close() end
-
-	-- first Odin error: `file.odin(12:5)` (default) or `file.odin:12:5` (unix)
-	local path, line, col
-	f = io.open(out_file, 'r')
-	if f then
-		for l in f:lines() do
-			path, line, col = l:match('^%s*(.-%.odin)%((%d+):(%d+)%)')
-			if not path then
-				path, line, col = l:match('^%s*(.-%.odin):(%d+):(%d+)')
-			end
-			if path then break end
-		end
-		f:close()
-	end
-	if path and path:sub(1, 1) ~= '/' then path = dir .. '/' .. path end
-
-	os.remove(out_file)
-	os.remove(status_file)
-	os.remove(answer_file)
-
-	if status == '0' then
-		vis:info('build ok: ' .. display)
-		return
-	end
-	if not path then
-		vis:info('build failed: exit ' .. (status or '?'))
-		return
-	end
-	if answer ~= 'e' then
-		vis:info(string.format('build failed: first error at %s:%s', path, line))
-		return
-	end
-
-	-- jump to the error: open the file unless it's already the current one
-	local current = vis.win and vis.win.file and vis.win.file.path
-	if current ~= path then
-		if vis.win.file.modified then
-			vis:info('Buffer has unsaved changes — :w first (or use :e! manually)')
-			return
-		end
-		vis:command(string.format("e '%s'", path))
-	end
-	vis.win.selection:to(tonumber(line), tonumber(col))
 end
 
-return M
+-- ---------------------------------------------------------------------------
+-- events
+-- ---------------------------------------------------------------------------
+
+-- re-index tags in the background after saving an .odin file
+-- (build.sh -t re-scans src and merges it with the cached stdlib tags)
+vis.events.subscribe(vis.events.FILE_SAVE_POST, function(file, path) -- luacheck: no unused args
+	if path and path:match('%.odin$') and exists('build.sh') then
+		os.execute('bash ./build.sh -t </dev/null >/dev/null 2>&1 &')
+	end
+end)
+
+return M

config/vis/pickers.lua

@@ -1,12 +1,30 @@
---pickers: fuzzy file finder, live ripgrep, yazi file manager, gitu.
+-- pickers: fuzzy file finder, live ripgrep, build errors, yazi file manager, gitu.
 local M = {}
 
 -- height of the drop-down fzf panel at the top ('100%' = full screen)
 M.height = '100%'
 
 -- ---------------------------------------------------------------------------
--- helper funcs
+-- shared constants
 -- ---------------------------------------------------------------------------
+local BAT = 'bat --theme=custom_zen --color=always --style=numbers'
+local PREVIEW_FILE = BAT .. ' --line-range=:500 {}'            -- {} = path
+local PREVIEW_AT = BAT .. ' --highlight-line {2} {1}'          -- {1}=path {2}=line
+
+local KEYS_NAV = 'ctrl-n:down,ctrl-p:up'
+local KEYS_PREVIEW = 'ctrl-/:toggle-preview,shift-up:preview-up,shift-down:preview-down'
+
+-- an Odin error line (-error-pos-style:unix): path.odin:line:col: message
+local ERROR_PATTERN = '^(.-%.odin):(%d+):(%d+):'
+
+-- ---------------------------------------------------------------------------
+-- helpers
+-- ---------------------------------------------------------------------------
+
+-- single-quote a string for the shell
+local function q(s)
+    return "'" .. s:gsub("'", "'\\''") .. "'"
+end
 
 -- write a raw escape sequence straight to the terminal
 local function tty_write(seq)
@@ -23,6 +41,17 @@ local function restore_screen()
     vis:redraw()
 end
 
+-- fzf command line: common flags + a list of extra options
+local function fzf(prompt, opts)
+    return 'fzf --height=' .. M.height .. ' --layout=reverse --border'
+        .. ' --prompt ' .. q(prompt) .. ' ' .. table.concat(opts, ' ')
+end
+
+-- "--flag 'value'"
+local function opt(flag, value)
+    return flag .. ' ' .. q(value)
+end
+
 -- run an fzf pipeline; returns its output lines and exit code
 local function run_fzf(cmd)
     -- --height mode draws from the cursor down, so start at the top-left
@@ -66,18 +95,14 @@ end
 --   ctrl-n/p   move down/up
 -- ---------------------------------------------------------------------------
 function M.files()
-    local preview = 'bat --theme=custom_zen --color=always --style=numbers --line-range=:500 {}'
+    local cmd = 'fd --type f --hidden --exclude .git | ' .. fzf('files> ', {
-
+        '--print-query --expect=alt-enter,ctrl-v', -- output: query, key, choice
-    local cmd = 'fd --type f --hidden --exclude .git | fzf'
+        opt('--header', 'enter: open · alt-enter: new file · ctrl-v: vsplit'),
-        .. ' --height=' .. M.height .. ' --layout=reverse --border'
+        opt('--preview', PREVIEW_FILE),
-        .. " --prompt 'files> '"
+        opt('--preview-window', 'down:75%:border-top'),
-        .. ' --print-query --expect=alt-enter,ctrl-v' -- output: query, key, choice
+        opt('--bind', KEYS_NAV),
-        .. " --header 'enter: open · alt-enter: new file · ctrl-v: vsplit'"
+        opt('--bind', KEYS_PREVIEW),
-        .. " --preview '" .. preview .. "'"
+    })
-        .. " --preview-window 'down:75%:border-top'"
-        .. " --bind 'ctrl-n:down,ctrl-p:up'"
-        .. " --bind 'ctrl-/:toggle-preview'"
-        .. " --bind 'shift-up:preview-up,shift-down:preview-down'"
 
     local out, code = run_fzf(cmd)
     if not out or code == 130 then return end -- failed, or Esc / Ctrl-C
@@ -100,28 +125,29 @@ end
 
 -- ---------------------------------------------------------------------------
 -- grep: live ripgrep search across the project, jump to the match
+--   M.grep()            start empty, results appear as you type
+--   M.grep_selection()  visual mode: start with the selected text
 -- ---------------------------------------------------------------------------
-function M.grep()
+local function grep_with(query)
-    -- {1} = path, {2} = line number (fields split on ':')
-    local preview = 'bat --theme=custom_zen --color=always --style=numbers --highlight-line {2} {1}'
-
     -- don't run rg on an empty query (it would match every line)
     local reload = '[ -n {q} ] && rg --column --line-number --no-heading'
         .. ' --color=always --smart-case --hidden --glob "!.git" -- {q} || true'
 
-    -- empty stdin: results only appear once you start typing
+    local opts = {
-    local cmd = ': | fzf'
+        '--ansi --disabled', -- let rg do the matching, not fzf
-        .. ' --height=' .. M.height .. ' --layout=reverse --border'
+        '--delimiter :',     -- fields: path:line:col:text
-        .. " --prompt 'rg> '"
+        opt('--bind', 'change:reload:' .. reload),
-        .. ' --ansi --disabled' -- let rg do the matching, not fzf
+        opt('--preview', PREVIEW_AT),
-        .. ' --delimiter :'
+        opt('--preview-window', 'down:90%:border-top:+{2}/2'),
-        .. " --bind 'change:reload:" .. reload .. "'"
+        opt('--bind', KEYS_PREVIEW),
-        .. " --preview '" .. preview .. "'"
+    }
-        .. " --preview-window 'down:90%:border-top:+{2}/2'"
+    if query then
-        .. " --bind 'ctrl-/:toggle-preview'"
+        table.insert(opts, opt('--query', query))
-        .. " --bind 'shift-up:preview-up,shift-down:preview-down'"
+        table.insert(opts, opt('--bind', 'start:reload:' .. reload))
+    end
 
-    local out = run_fzf(cmd)
+    -- empty stdin: results only appear once there is a query
+    local out = run_fzf(': | ' .. fzf('rg> ', opts))
     local choice = out and out[1]
     if not choice or choice == '' then return end
 
@@ -132,6 +158,84 @@ function M.grep()
     vis.win.selection:to(tonumber(line), tonumber(col))
 end
 
+function M.grep()
+    grep_with(nil)
+end
+
+function M.grep_selection()
+    local win = vis.win
+    local text
+    if win and win.file and win.selection.range then
+        text = win.file:content(win.selection.range)
+    end
+
+    -- leave visual mode before fzf takes over the screen
+    vis.mode = vis.modes.NORMAL
+
+    -- first line of the selection only; nothing usable -> plain grep
+    text = text and text:match('^[^\n]*')
+    if not text or text:match('^%s*$') then
+        grep_with(nil)
+    else
+        grep_with(text)
+    end
+end
+
+-- ---------------------------------------------------------------------------
+-- errors: browse the errors from the last build (the log build.lua writes)
+--   enter  jump to the error
+-- ---------------------------------------------------------------------------
+function M.errors()
+    local f = io.open(require('build').log, 'r')
+    if not f then
+        vis:info('No build log yet — run a build first')
+        return
+    end
+
+    -- keep only the path.odin:line:col: lines; the log comes from a pty, so
+    -- strip colour escapes and carriage returns first
+    local errors = {}
+    for line in f:lines() do
+        local clean = line:gsub('\27%[[%d;?]*%a', ''):gsub('\r', '')
+        if clean:match(ERROR_PATTERN) then table.insert(errors, clean) end
+    end
+    f:close()
+
+    if #errors == 0 then
+        vis:info('No errors in the last build')
+        return
+    end
+
+    local tmp = os.tmpname()
+    f = io.open(tmp, 'w')
+    if not f then
+        vis:info('errors: cannot write temp file')
+        return
+    end
+    f:write(table.concat(errors, '\n'), '\n')
+    f:close()
+
+    local cmd = fzf('errors> ', {
+        '--no-sort', -- keep build order: the first error is the one to fix first
+        '--delimiter :',
+        opt('--preview', PREVIEW_AT),
+        opt('--preview-window', 'down:75%:border-top:+{2}/2'),
+        opt('--bind', KEYS_NAV),
+        opt('--bind', KEYS_PREVIEW),
+    }) .. ' < ' .. q(tmp)
+
+    local out = run_fzf(cmd)
+    os.remove(tmp)
+
+    local choice = out and out[1]
+    if not choice or choice == '' then return end
+
+    local path, line, col = choice:match(ERROR_PATTERN)
+    if not path or not open_path(path) then return end
+
+    vis.win.selection:to(tonumber(line), tonumber(col))
+end
+
 -- ---------------------------------------------------------------------------
 -- fm: browse/create/rename/delete in yazi, then open the file you pick
 -- ---------------------------------------------------------------------------
@@ -153,6 +257,7 @@ end
 -- git: run gitu, then hand the screen back to vis
 -- ---------------------------------------------------------------------------
 function M.git()
+    tty_write('\27[?1049l')
     os.execute('gitu </dev/tty >/dev/tty 2>&1')
     restore_screen()
 
@@ -164,16 +269,17 @@ function M.git()
     end
 end
 
+-- ---------------------------------------------------------------------------
+-- events
 -- ---------------------------------------------------------------------------
 -- create missing parent directories on save, so a new file like
 -- src/util/new.odin can be written even if src/util/ doesn't exist yet
--- ---------------------------------------------------------------------------
 vis.events.subscribe(vis.events.FILE_SAVE_PRE, function(file, path) -- luacheck: no unused args
     local dir = path and path:match('^(.*)/[^/]+$')
     if dir and dir ~= '' then
-        os.execute("mkdir -p '" .. (dir:gsub("'", "'\\''")) .. "'")
+        os.execute('mkdir -p ' .. q(dir))
     end
     return true
 end)
 
-return M
+return M

config/vis/visrc.lua

@@ -1,19 +1,8 @@
 require('vis')
-
-local pickers = require('pickers')
-local build = require('build')
-
 require('plugins/vis-ctags')
 
--- ---------------------------------------------------------------------------
+local build   = require('build')
--- Syntax highlighting:  ~/.config/vis/lexers/odin.lua
+local pickers = require('pickers')
--- ---------------------------------------------------------------------------
-if vis.ftdetect then
-    -- vis 0.9 and earlier
-    if vis.ftdetect.filetypes then
-        vis.ftdetect.filetypes.odin = { ext = { '%.odin$' } }
-    end
-end
 
 -- ---------------------------------------------------------------------------
 -- Global options, key mappings and commands
@@ -21,17 +10,26 @@ end
 vis.events.subscribe(vis.events.INIT, function()
     vis:command('set escdelay 1')
     vis:command('set autoindent off')
+    vis:command('set ignorecase on')
     vis:command('set theme custom_zen')
 
+    -- jump list
+    vis:map(vis.modes.NORMAL, "<M-j>", "g>")
+    vis:map(vis.modes.NORMAL, "<M-k>", "g<")
+
     -- pickers
     vis:map(vis.modes.NORMAL, '<C-p>', pickers.files, 'Fuzzy find / create a file')
     vis:map(vis.modes.NORMAL, '<C-f>', pickers.grep, 'Live grep the project with ripgrep')
+    vis:map(vis.modes.VISUAL, '<C-f>', pickers.grep_selection, 'Live grep for the selected text')
     vis:map(vis.modes.NORMAL, '<C-e>', pickers.fm, 'terminal file manager')
+    vis:map(vis.modes.NORMAL, '<M-e>', pickers.errors, 'Browse errors from the last build')
+
     -- picker commands
     vis:command_register('files', function() pickers.files() return true end, 'Fuzzy find / create a file')
     vis:command_register('grep', function() pickers.grep() return true end, 'Live grep the project with ripgrep')
     vis:command_register('fm', function() pickers.fm() return true end, 'Pick a file with a terminal file manager')
-	vis:command_register('git', function() pickers.git() return true end, 'Open gitu')
+    vis:command_register('git', function() pickers.git() return true end, 'Open gitu')
+    vis:command_register('errors', function() pickers.errors() return true end, 'Browse errors from the last build')
 
     -- build.sh setup
     vis:map(vis.modes.NORMAL, '<C-b>', function() build.run({}) end, 'Run ./build.sh')
@@ -40,7 +38,7 @@ vis.events.subscribe(vis.events.INIT, function()
         for i = 1, #argv do table.insert(args, argv[i]) end
         build.run(args)
         return true
-    end, 'Run ./build.sh with optional flags, e.g. :build run')
+    end, 'Run ./build.sh with optional flags, e.g :build run')
 
     -- system clipboard
     local function clip_copy()
@@ -53,15 +51,12 @@ vis.events.subscribe(vis.events.INIT, function()
         vis:feedkeys('<Escape>') -- clear any selection left on the pasted text
     end
 
-    vis:map(vis.modes.VISUAL, '<C-y>', clip_copy, 'Copy selection to system clipboard')
+    vis:map(vis.modes.VISUAL, '<C-c>', clip_copy, 'Copy selection to system clipboard')
     vis:map(vis.modes.VISUAL, '<C-v>', clip_paste, 'Paste system clipboard at cursor')
     vis:map(vis.modes.NORMAL, '<C-v>', clip_paste, 'Paste system clipboard at cursor')
 
-
+    -- ctag navigation
-    -- ctags: 'gd' to jump to tag definition under cursor
+    vis:map(vis.modes.NORMAL, 'gd', '<C-]>', 'Go to definition (ctags picker)')
-    -- vis-ctags binds <C-]> (jump) and <C-t> (back) itself;
-    vis:map(vis.modes.NORMAL, 'gd', '<C-]>')
-
 end)
 
 -- ---------------------------------------------------------------------------
@@ -73,3 +68,13 @@ vis.events.subscribe(vis.events.WIN_OPEN, function(win)
     vis:command('set number on')
 end)
 
+-- ---------------------------------------------------------------------------
+-- Syntax highlighting:  ~/.config/vis/lexers/odin.lua
+-- ---------------------------------------------------------------------------
+if vis.ftdetect then
+    -- vis 0.9 and earlier
+    if vis.ftdetect.filetypes then
+        vis.ftdetect.filetypes.odin = { ext = { '%.odin$' } }
+    end
+end
+