feat(npm): add `install_args` setting (#1581)

Co-authored-by: William Boman <william@redwill.se>

3 files changed, 16 insertions, 1 deletions

diff --git a/lua/mason-core/installer/compiler/compilers/npm.lua b/lua/mason-core/installer/compiler/compilers/npm.lua
index e8489fe8..cdf6a279 100644
--- a/lua/mason-core/installer/compiler/compilers/npm.lua
+++ b/lua/mason-core/installer/compiler/compilers/npm.lua
@@ -1,6 +1,7 @@
 local Result = require "mason-core.result"
 local _ = require "mason-core.functional"
 local providers = require "mason-core.providers"
+local settings = require "mason.settings"
 
 ---@param purl Purl
 local function purl_to_npm(purl)
@@ -24,6 +25,9 @@ function M.parse(source, purl)
         package = purl_to_npm(purl),
         version = purl.version,
         extra_packages = source.extra_packages,
+        npm = {
+            extra_args = settings.current.npm.install_args,
+        },
     }
 
     return Result.success(parsed_source)
@@ -39,6 +43,7 @@ function M.install(ctx, source)
         try(npm.init())
         try(npm.install(source.package, source.version, {
             extra_packages = source.extra_packages,
+            install_extra_args = source.npm.extra_args,
         }))
     end)
 end
diff --git a/lua/mason-core/installer/managers/npm.lua b/lua/mason-core/installer/managers/npm.lua
index d31fe768..93af3a85 100644
--- a/lua/mason-core/installer/managers/npm.lua
+++ b/lua/mason-core/installer/managers/npm.lua
@@ -57,7 +57,7 @@ end
 ---@async
 ---@param pkg string
 ---@param version string
----@param opts? { extra_packages?: string[] }
+---@param opts? { extra_packages?: string[], install_extra_args?: string[] }
 function M.install(pkg, version, opts)
     opts = opts or {}
     log.fmt_debug("npm: install %s %s %s", pkg, version, opts)
@@ -67,6 +67,7 @@ function M.install(pkg, version, opts)
         "install",
         ("%s@%s"):format(pkg, version),
         opts.extra_packages or vim.NIL,
+        opts.install_extra_args or vim.NIL,
     }
 end
 
diff --git a/lua/mason/settings.lua b/lua/mason/settings.lua
index ebff1e0b..e70d90a4 100644
--- a/lua/mason/settings.lua
+++ b/lua/mason/settings.lua
@@ -68,6 +68,15 @@ local DEFAULT_SETTINGS = {
         install_args = {},
     },
 
+    npm = {
+        ---@since 2.3.0
+        -- These args will be added to `npm install` calls. Note that setting extra args might impact intended behavior
+        -- and is not recommended.
+        --
+        -- Example: { "--registry", "https://registry.npmjs.org/" }
+        install_args = {},
+    },
+
     ui = {
         ---@since 1.0.0
         -- Whether to automatically check for new versions when opening the :Mason window.