add ccls (#299)

3 files changed, 60 insertions, 11 deletions

diff --git a/lua/nvim-lsp-installer/installers/context.lua b/lua/nvim-lsp-installer/installers/context.lua
index bdb993a5..e80485a4 100644
--- a/lua/nvim-lsp-installer/installers/context.lua
+++ b/lua/nvim-lsp-installer/installers/context.lua
@@ -3,6 +3,8 @@ local log = require "nvim-lsp-installer.log"
 local process = require "nvim-lsp-installer.process"
 local installers = require "nvim-lsp-installer.installers"
 local platform = require "nvim-lsp-installer.platform"
+local fs = require "nvim-lsp-installer.fs"
+local path = require "nvim-lsp-installer.path"
 
 local M = {}
 
@@ -96,7 +98,12 @@ function M.use_github_release_file(repo, file)
         M.use_github_release(repo),
         function(server, callback, context)
             local function get_download_url(version)
-                local target_file = type(file) == "function" and file(version) or file
+                local target_file
+                if type(file) == "function" then
+                    target_file = file(version)
+                else
+                    target_file = file
+                end
                 if not target_file then
                     log.fmt_error(
                         "Unable to find which release file to download. server_name=%s, repo=%s",
@@ -160,4 +167,22 @@ function M.set(fn)
     end
 end
 
+---@param rel_path string @The relative path from the current installation working directory.
+function M.set_working_dir(rel_path)
+    ---@type ServerInstallerFunction
+    return vim.schedule_wrap(function(server, callback, context)
+        log.fmt_debug("Changing installation working directory for %s", server.name)
+        local new_dir = path.concat { context.install_dir, rel_path }
+        if not fs.dir_exists(new_dir) then
+            local ok = pcall(fs.mkdirp, new_dir)
+            if not ok then
+                context.stdio_sink.stderr(("Failed to create directory %s.\n"):format(new_dir))
+                return callback(false)
+            end
+        end
+        context.install_dir = new_dir
+        callback(true)
+    end)
+end
+
 return M
diff --git a/lua/nvim-lsp-installer/installers/init.lua b/lua/nvim-lsp-installer/installers/init.lua
index fdf3b0f4..a04eeafb 100644
--- a/lua/nvim-lsp-installer/installers/init.lua
+++ b/lua/nvim-lsp-installer/installers/init.lua
@@ -1,9 +1,21 @@
 local platform = require "nvim-lsp-installer.platform"
 local log = require "nvim-lsp-installer.log"
 local Data = require "nvim-lsp-installer.data"
+local fs = require "nvim-lsp-installer.fs"
+local path = require "nvim-lsp-installer.path"
 
 local M = {}
 
+---@param installer ServerInstallerFunction[]|ServerInstallerFunction
+---@return ServerInstallerFunction
+local function normalize_installer(installer)
+    if type(installer) == "table" then
+        return M.pipe(installer)
+    else
+        return installer
+    end
+end
+
 ---@alias ServerInstallCallback fun(success: boolean)
 
 ---@class ServerInstallContext
@@ -120,11 +132,7 @@ function M.on(platform_table)
     return function(server, callback, context)
         local installer = get_by_platform(platform_table)
         if installer then
-            if type(installer) == "function" then
-                installer(server, callback, context)
-            else
-                M.pipe(installer)(server, callback, context)
-            end
+            normalize_installer(installer)(server, callback, context)
         else
             callback(true)
         end
@@ -139,11 +147,7 @@ function M.when(platform_table)
     return function(server, callback, context)
         local installer = get_by_platform(platform_table)
         if installer then
-            if type(installer) == "function" then
-                installer(server, callback, context)
-            else
-                M.pipe(installer)(server, callback, context)
-            end
+            normalize_installer(installer)(server, callback, context)
         else
             context.stdio_sink.stderr(
                 ("Current operating system is not yet supported for server %q.\n"):format(server.name)
@@ -153,4 +157,13 @@ function M.when(platform_table)
     end
 end
 
+---@param installer ServerInstallerFunction|ServerInstallerFunction[] @The installer to execute in a new installer context.
+function M.branch_context(installer)
+    ---@type ServerInstallerFunction
+    return function(server, callback, context)
+        local new_context = vim.deepcopy(context)
+        normalize_installer(installer)(server, callback, new_context)
+    end
+end
+
 return M
diff --git a/lua/nvim-lsp-installer/installers/std.lua b/lua/nvim-lsp-installer/installers/std.lua
index 4a95e9c8..f123b3ae 100644
--- a/lua/nvim-lsp-installer/installers/std.lua
+++ b/lua/nvim-lsp-installer/installers/std.lua
@@ -248,6 +248,17 @@ function M.git_clone(repo_url)
     end
 end
 
+function M.git_submodule_update()
+    ---@type ServerInstallerFunction
+    return function(_, callback, context)
+        process.spawn("git", {
+            args = { "submodule", "update", "--init", "--recursive" },
+            cwd = context.install_dir,
+            stdio_sink = context.stdio_sink,
+        }, callback)
+    end
+end
+
 ---@param opts {args: string[]}
 function M.gradlew(opts)
     ---@type ServerInstallerFunction