Composer completions

composer.lua

@@ -0,0 +1,69 @@
+---
+ -- Composer completions
+---
+
+-- preamble: common routines
+local JSON = require("JSON")
+
+-- silence JSON parsing errors
+function JSON:assert () end  -- luacheck: no unused args
+
+local color = require("color")
+local parser = clink.arg.new_parser
+
+---
+ -- Queries composer for available tasks
+ --
+ -- @return {table} - Table of available tasks, either available for current project or global ones
+---
+local function get_tasks()
+
+    local localTasks = {
+    }
+
+    local proc = io.popen("composer list --raw 2>nul")
+    if not proc then return {} end
+
+    for line in proc:lines() do
+        local value = string.match(line, "^(%S+)")
+        table.insert(localTasks, value)
+    end
+
+    proc:close()
+
+    return localTasks
+
+end
+
+local local_tasks_parser = parser(
+    {
+        get_tasks
+    }
+):loop(0)
+
+-- Register parsers
+-- Note: Order is important
+clink.arg.register_parser("composer", local_tasks_parser)
+
+-- Prompt
+local function composer_prompt_filter()
+    local package_file = io.open('composer.json')
+    if package_file ~= nil then
+
+        local package_data = package_file:read('*a')
+        package_file:close()
+
+        local package = JSON:decode(package_data)
+        -- Bail out if composer.json is malformed
+        if not package then return false end
+
+        local package_name = package.name or "<no name>"
+        local package_version = package.version and ":"..package.version or ""
+        local package_string = color.color_text("("..package_name..package_version..") ", color.YELLOW)
+
+        clink.prompt.value = clink.prompt.value .. package_string
+    end
+    return false
+end
+
+clink.prompt.register_filter(composer_prompt_filter, 40)