fix install

packages/m/msys2-base/xmake.lua

@@ -20,18 +20,17 @@ package("msys2-base")
         package:addenv("PATH", "usr/bin")
 
         -- starting MSYS2 for the first time
-        local uname = path.join(package:installdir("usr/bin"), "uname.exe")
-        os.vrunv(uname, {"-a"})
+        local bash = path.join(package:installdir("usr/bin"), "bash.exe")
+        os.vrunv(bash, {"-leo", "pipefail", "-c", "uname -a"})
 
         -- updating packages
-        local pacman = path.join(package:installdir("usr/bin"), "pacman.exe")
-        try { function () os.vrunv(pacman, {"-Syuu", "--overwrite", "*"}) end}
+        try { function () os.vrunv(bash, {"-leo", "pipefail", "-c", "pacman --noconfirm -Syuu --overwrite *"}) end}
 
         -- killing remaining tasks
         os.vrunv("taskkill", {"/F", "/FI", "MODULES eq msys-2.0.dll"})
 
         -- final system upgrade
-        os.vrunv(pacman, {"-Syuu", "--overwrite", "*"})
+        os.vrunv(bash, {"-leo", "pipefail", "-c", "pacman --noconfirm -Syuu --overwrite *"})
     end)
 
     on_test(function (package)

packages/m/msys2/xmake.lua

@@ -12,12 +12,12 @@ package("msys2")
         local msystem = package:config("msystem")
         if msystem then
             package:addenv("MSYSTEM", msystem)
-            local pacman = path.join(msys2_base:installdir("usr/bin"), "pacman.exe")
+            local bash = path.join(msys2_base:installdir("usr/bin"), "bash.exe")
             if msystem == "MINGW64" then
-                os.vrunv(pacman, {"--noconfirm", "-S", "--needed", "--overwrite", "*", "mingw-w64-x86_64-toolchain"})
+                os.vrunv(bash, {"-leo", "pipefail", "-c", "pacman --noconfirm -S --needed --overwrite * mingw-w64-x86_64-toolchain"})
                 package:addenv("PATH", msys2_base:installdir("mingw64/bin"))
             elseif msystem == "MINGW32" then
-                os.vrunv(pacman, {"--noconfirm", "-S", "--needed", "--overwrite", "*", "mingw-w64-i686-toolchain"})
+                os.vrunv(bash, {"-leo", "pipefail", "-c", "pacman --noconfirm -S --needed --overwrite * mingw-w64-i686-toolchain"})
                 package:addenv("PATH", msys2_base:installdir("mingw32/bin"))
             end
         end