From a4f74fc80a67e27f9eac75a5e4f314c290e3704c Mon Sep 17 00:00:00 2001
From: qwjyh <urataw421@gmail.com>
Date: Fri, 6 Oct 2023 17:56:04 +0900
Subject: [PATCH] new: nvim: add julials sysimage gen scripts for faster
 startup

---
 dotfiles/neovim/add_dependencies.jl | 15 +++++++++++
 dotfiles/neovim/init.lua            | 40 ++++++++++++++++++++++++++++-
 dotfiles/neovim/setup_julials.sh    |  2 ++
 dotfiles/neovim/update_julials.sh   |  7 +++++
 4 files changed, 63 insertions(+), 1 deletion(-)
 create mode 100644 dotfiles/neovim/add_dependencies.jl
 create mode 100755 dotfiles/neovim/setup_julials.sh
 create mode 100755 dotfiles/neovim/update_julials.sh

diff --git a/dotfiles/neovim/add_dependencies.jl b/dotfiles/neovim/add_dependencies.jl
new file mode 100644
index 0000000..14b9fd4
--- /dev/null
+++ b/dotfiles/neovim/add_dependencies.jl
@@ -0,0 +1,15 @@
+# Add dependencies to Language Server project
+# TODO: automatically list up necessary packages
+using Pkg
+
+# add LanguageServer.jl
+Pkg.add("LanguageServer")
+
+# add dependencies of LanguageServer.jl
+pkg_ls = Pkg.project().dependencies["LanguageServer"]
+pkg_ls_deps = Pkg.dependencies()[pkg_ls].dependencies |> keys
+foreach(Pkg.add, pkg_ls_deps)
+
+# add extra dependencies
+foreach(Pkg.add, ["Logging", "Sockets", "DataStructures"]) # these packages are manually collected
+
diff --git a/dotfiles/neovim/init.lua b/dotfiles/neovim/init.lua
index 22e44e5..949b4a5 100644
--- a/dotfiles/neovim/init.lua
+++ b/dotfiles/neovim/init.lua
@@ -464,6 +464,45 @@ lspconfig.lua_ls.setup {
 lspconfig.julials.setup {
     on_attach = on_attach,
     capabilities = capabilities,
+    cmd = { "julia", "--startup-file=no", "--history-file=no", "-J",
+        os.getenv("HOME") .. "/.julia/environments/nvim-lspconfig/sys-ls.so",
+        -- use below 2 lines to collect script to be included in sysimage
+        '--trace-compile',
+        os.getenv("HOME") .. "/.julia/environments/nvim-lspconfig/tracecompile.jl",
+        "-e",
+        [[
+            # Load LanguageServer.jl: attempt to load from ~/.julia/environments/nvim-lspconfig
+            # with the regular load path as a fallback
+            ls_install_path = joinpath(
+                get(DEPOT_PATH, 1, joinpath(homedir(), ".julia")),
+                "environments", "nvim-lspconfig"
+            )
+            pushfirst!(LOAD_PATH, ls_install_path)
+            using LanguageServer
+            popfirst!(LOAD_PATH)
+            depot_path = get(ENV, "JULIA_DEPOT_PATH", "")
+            project_path = let
+                dirname(something(
+                    ## 1. Finds an explicitly set project (JULIA_PROJECT)
+                    Base.load_path_expand((
+                        p = get(ENV, "JULIA_PROJECT", nothing);
+                        p === nothing ? nothing : isempty(p) ? nothing : p
+                    )),
+                    ## 2. Look for a Project.toml file in the current working directory,
+                    ##    or parent directories, with $HOME as an upper boundary
+                    Base.current_project(),
+                    ## 3. First entry in the load path
+                    get(Base.load_path(), 1, nothing),
+                    ## 4. Fallback to default global environment,
+                    ##    this is more or less unreachable
+                    Base.load_path_expand("@v#.#"),
+                ))
+            end
+            @info "Running language server" VERSION pwd() project_path depot_path
+            server = LanguageServer.LanguageServerInstance(stdin, stdout, project_path, depot_path)
+            server.runlinter = true
+            run(server)
+        ]] }
 }
 -- SATySFi
 lspconfig.satysfi_ls.setup {
@@ -575,4 +614,3 @@ cmp.setup.cmdline(':', {
         }
     })
 })
-
diff --git a/dotfiles/neovim/setup_julials.sh b/dotfiles/neovim/setup_julials.sh
new file mode 100755
index 0000000..f1aa150
--- /dev/null
+++ b/dotfiles/neovim/setup_julials.sh
@@ -0,0 +1,2 @@
+#!/usr/bin/bash -x
+julia --project=~/.julia/environments/nvim-lspconfig ./add_dependencies.jl
diff --git a/dotfiles/neovim/update_julials.sh b/dotfiles/neovim/update_julials.sh
new file mode 100755
index 0000000..8dd5a78
--- /dev/null
+++ b/dotfiles/neovim/update_julials.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/bash -x
+cd ~/.julia/environments/nvim-lspconfig/ || return 1
+julia --project=. -e 'using Pkg; Pkg.update()'
+cat precompile_exec_head.jl tracecompile.jl > precompile_exec.jl
+julia --project=. -e 'using PackageCompiler; create_sysimage(["LanguageServer"], sysimage_path="sys-ls.so", precompile_execution_file=["precompile_exec.jl"])'
+julia --project=. -J sys-ls.so -e 'using Pkg; Pkg.precompile()'
+