From 45e82ed1d37980c16a79fa6e808188c0461a6005 Mon Sep 17 00:00:00 2001
From: logrusx <jorodrbr@yahoo.com>
Date: Wed, 28 Jan 2026 15:01:48 +0200
Subject: [PATCH] Add curl downloader

On some Mac systems the user cannot install wget, but curl is available OTB.
---
 lua/pkgm/downloaders/curl.lua    | 63 ++++++++++++++++++++++++++++++++
 lua/pkgm/downloaders/factory.lua |  7 ++++
 2 files changed, 70 insertions(+)
 create mode 100644 lua/pkgm/downloaders/curl.lua

diff --git a/lua/pkgm/downloaders/curl.lua b/lua/pkgm/downloaders/curl.lua
new file mode 100644
index 0000000..2009ab8
--- /dev/null
+++ b/lua/pkgm/downloaders/curl.lua
@@ -0,0 +1,63 @@
+local path = require('java-core.utils.path')
+local class = require('java-core.utils.class')
+local log = require('java-core.utils.log2')
+
+---@class java-core.Curl
+---@field url string
+---@field dest string
+---@field retry_count number
+---@field timeout number
+local Curl = class()
+
+---@class java-core.CurlOpts
+---@field url string URL to download
+---@field dest? string Destination path (optional, uses temp if not provided)
+---@field retry_count? number Retry count (optional, defaults to 5)
+---@field timeout? number Timeout in seconds (optional, defaults to 30)
+
+---@param opts java-core.CurlOpts
+function Curl:_init(opts)
+	self.url = opts.url
+
+	if not opts.dest then
+		local filename = vim.fs.basename(opts.url)
+		local tmp_dir = vim.fn.tempname()
+		vim.fn.mkdir(tmp_dir, 'p')
+		self.dest = path.join(tmp_dir, filename)
+		log.debug('Using temp destination:', self.dest)
+	else
+		self.dest = opts.dest
+		log.debug('Using provided destination:', self.dest)
+	end
+
+	self.retry_count = opts.retry_count or 5
+	self.timeout = opts.timeout or 30
+end
+
+---Download file using curl
+---@return string|nil # Path to downloaded file, or nil on failure
+---@return string|nil # Error message if failed
+function Curl:download()
+	log.debug('curl downloading:', self.url, 'to', self.dest)
+	local cmd = string.format(
+		'curl --retry %d --connect-timeout %d -o %s %s',
+		self.retry_count,
+		self.timeout,
+		vim.fn.shellescape(self.dest),
+		vim.fn.shellescape(self.url)
+	)
+	log.debug('curl command:', cmd)
+
+	local result = vim.fn.system(cmd)
+	local exit_code = vim.v.shell_error
+
+	if exit_code ~= 0 then
+		log.error('curl failed:', exit_code, result)
+		return nil, string.format('curl failed (exit %d): %s', exit_code, result)
+	end
+
+	log.debug('curl download completed:', self.dest)
+	return self.dest, nil
+end
+
+return Curl
diff --git a/lua/pkgm/downloaders/factory.lua b/lua/pkgm/downloaders/factory.lua
index f041fe6..a0163c4 100644
--- a/lua/pkgm/downloaders/factory.lua
+++ b/lua/pkgm/downloaders/factory.lua
@@ -1,4 +1,5 @@
 local system = require('java-core.utils.system')
+local Curl = require('pkgm.downloaders.curl')
 local Wget = require('pkgm.downloaders.wget')
 local PowerShell = require('pkgm.downloaders.powershell')
 local log = require('java-core.utils.log2')
@@ -27,6 +28,12 @@ function M.get_downloader(opts)
 		return Wget(opts)
 	end
 
+	-- Check for curl on all platforms
+	if vim.fn.executable('curl') == 1 then
+		log.debug('Using curl downloader')
+		return Curl(opts)
+	end
+
 	-- On Windows, fallback to PowerShell if available
 	if os == 'win' and (vim.fn.executable('pwsh') == 1 or vim.fn.executable('powershell') == 1) then
 		log.debug('Using PowerShell downloader (fallback)')