Add sh language support

lua/coverage/config.lua

@@ -153,6 +153,9 @@ local defaults = {
         php = {
             coverage_file = "coverage/cobertura.xml",
             path_mappings = {},
+        },
+        sh = {
+            coverage_file = "coverage/lcov.info",
         }
     },
     lcov_file = nil,

lua/coverage/languages/sh.lua

@@ -0,0 +1,27 @@
+local M = {}
+
+local Path = require("plenary.path")
+local common = require("coverage.languages.common")
+local config = require("coverage.config")
+local util = require("coverage.util")
+
+--- Returns a list of signs to be placed.
+M.sign_list = common.sign_list
+
+--- Returns a summary report.
+M.summary = common.summary
+
+--- Loads a coverage report.
+-- @param callback called with the results of the coverage report
+M.load = function(callback)
+	local sh_config = config.opts.lang.sh
+	local p = Path:new(util.get_coverage_file(sh_config.coverage_file))
+	if not p:exists() then
+		vim.notify("No coverage file exists.", vim.log.levels.INFO)
+		return
+	end
+
+	callback(util.lcov_to_table(p))
+end
+
+return M