62961c8541
* feat(reload): add SSE live-reload server module
Problem: HTML output from pandoc has no live-reload; the browser must
be refreshed manually after each compile.
Solution: add lua/preview/reload.lua — a minimal SSE-only TCP server.
start() binds 127.0.0.1:5554 and keeps EventSource connections alive;
broadcast() pushes a reload event to all clients; inject() appends an
EventSource script before </body> (or at EOF) on every compile so
pandoc overwrites do not lose the tag.
* refactor(presets): add reload field, remove synctex field
Problem: the synctex field only handled PDF forward search and left
HTML live-preview and typst watch mode unsupported.
Solution: add reload = function(ctx) returning { 'typst', 'watch',
ctx.file } to typst (long-running watch mode), reload = true to
markdown and github (SSE push after each pandoc compile), and remove
synctex = true from latex (the -synctex=1 arg in latex.args remains
for .synctex.gz generation).
* refactor(init): replace synctex field and validation with reload
Problem: ProviderConfig still declared synctex and validated it, but
the field is being dropped in favour of the general-purpose reload.
Solution: replace the synctex annotation and vim.validate call with the
reload field, accepting boolean | string[] | function.
* feat(compiler): support long-running watch processes and SSE reload
Problem: compile() only supports one-shot invocations, requiring a
BufWritePost autocmd for watch mode and leaving HTML without live-
reload.
Solution: resolve_reload_cmd() maps provider.reload (function or table)
to a command; when present, compile() spawns it as a long-running
process instead of building a one-shot cmd from provider.cmd + args.
toggle() detects long-running providers and toggles the process
directly instead of registering a BufWritePost autocmd. When
reload = true and output is .html, the SSE server is invoked after
each successful compile. status() reports is_reload processes as
watching, not compiling. stop_all() also stops the SSE server.
* fix(compiler): format is_longrunning and annotate is_reload field
Problem: stylua required is_longrunning to be on one line; lua-ls
warned about undefined field is_reload on preview.Process.
Solution: inline the boolean expression and add is_reload? to the
preview.Process annotation.
* refactor: rename compile/toggle commands to build/watch
Problem: `compile` and `toggle` are accurate but unintuitive — `compile`
sounds academic and `toggle` says nothing about what it toggles.
Solution: rename the public API and `:Preview` subcommands to `build`
(one-shot) and `watch` (live preview). Internal compiler functions are
unchanged. No aliases for old names — clean break.
65 lines
1.4 KiB
Lua
65 lines
1.4 KiB
Lua
local M = {}
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local handlers = {
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build = function()
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require('preview').build()
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end,
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stop = function()
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require('preview').stop()
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end,
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clean = function()
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require('preview').clean()
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end,
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watch = function()
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require('preview').watch()
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end,
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open = function()
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require('preview').open()
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end,
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status = function()
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local s = require('preview').status()
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local parts = {}
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if s.compiling then
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table.insert(parts, 'compiling with "' .. s.provider .. '"')
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else
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table.insert(parts, 'idle')
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end
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if s.watching then
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table.insert(parts, 'watching')
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end
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vim.notify('[preview.nvim]: ' .. table.concat(parts, ', '), vim.log.levels.INFO)
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end,
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}
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---@param args string
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local function dispatch(args)
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local subcmd = args ~= '' and args or 'build'
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local handler = handlers[subcmd]
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if handler then
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handler()
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else
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vim.notify('[preview.nvim]: unknown subcommand: ' .. subcmd, vim.log.levels.ERROR)
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end
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end
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---@param lead string
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---@return string[]
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local function complete(lead)
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return vim.tbl_filter(function(s)
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return s:find(lead, 1, true) == 1
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end, vim.tbl_keys(handlers))
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end
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function M.setup()
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vim.api.nvim_create_user_command('Preview', function(opts)
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dispatch(opts.args)
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end, {
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nargs = '?',
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complete = function(lead)
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return complete(lead)
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end,
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desc = 'Build, stop, clean, watch, open, or check status of document preview',
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})
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end
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return M
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