No description
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.
|
||
|---|---|---|
| .github/workflows | ||
| doc | ||
| lua/preview | ||
| plugin | ||
| spec | ||
| .busted | ||
| .editorconfig | ||
| .gitignore | ||
| .luarc.json | ||
| .prettierrc | ||
| flake.lock | ||
| flake.nix | ||
| LICENSE | ||
| preview.nvim-scm-1.rockspec | ||
| README.md | ||
| selene.toml | ||
| stylua.toml | ||
| vim.yaml | ||
preview.nvim
Async document compilation for Neovim
An extensible framework for compiling documents (LaTeX, Typst, Markdown, etc.) asynchronously with error diagnostics.
Features
- Async compilation via
vim.system() - Built-in presets for Typst, LaTeX, Markdown, and GitHub-flavored Markdown
- Compiler errors as native
vim.diagnostic - User events for extensibility (
PreviewCompileStarted,PreviewCompileSuccess,PreviewCompileFailed)
Requirements
- Neovim 0.11+
Installation
Install with your package manager of choice or via luarocks:
luarocks install preview.nvim
Documentation
:help preview.nvim
FAQ
Q: How do I define a custom provider?
require('preview').setup({
typst = {
cmd = { 'typst', 'compile' },
args = function(ctx)
return { ctx.file }
end,
output = function(ctx)
return ctx.file:gsub('%.typ$', '.pdf')
end,
},
})
Q: How do I override a preset?
require('preview').setup({
typst = { env = { TYPST_FONT_PATHS = '/usr/share/fonts' } },
})
Q: How do I automatically open the output file?
Set open = true on your provider (all built-in presets have this enabled) to
open the output with vim.ui.open() after the first successful compilation. For
a specific application, pass a command table:
require('preview').setup({
typst = { open = { 'sioyek', '--new-instance' } },
})