From 9c20c227f2ee78a29f3dbb14023726e229494664 Mon Sep 17 00:00:00 2001
From: Boris Nagaev <bnagaev@gmail.com>
Date: Sun, 24 Sep 2017 18:22:36 +0200
Subject: build-pkg, Debian: set Installed-Size field

See https://github.com/mxe/mxe/issues/1886#issuecomment-325927828
---
 tools/build-pkg.lua | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/tools/build-pkg.lua b/tools/build-pkg.lua
index 6b4058e..77b4161 100755
--- a/tools/build-pkg.lua
+++ b/tools/build-pkg.lua
@@ -196,6 +196,13 @@ local function fileExists(name)
     end
 end
 
+local function fileSize(name)
+    local f = io.open(name, "r")
+    local size = f:seek("end")
+    io.close(f)
+    return size
+end
+
 local function isSymlink(name)
     return shell(("ls -l %q"):format(name)):sub(1, 1) == "l"
 end
@@ -727,6 +734,7 @@ Version: %s
 Section: devel
 Priority: optional
 Architecture: %s%s
+Installed-Size: %d
 Maintainer: Boris Nagaev <bnagaev@gmail.com>
 Homepage: http://mxe.cc
 Description: %s
@@ -755,12 +763,20 @@ local function debianControl(options)
         version,
         options.arch,
         deb_deps_str,
+        math.ceil(options.size_bytes / 1024),
         options.description1,
         options.description2
     )
 end
 
 local function makePackage(name, files, deps, ver, d1, d2, dst, recommends)
+    -- calculate size_bytes
+    local size_bytes = 0
+    for _, f in ipairs(files) do
+        local size = math.ceil(fileSize(f) / 4096) * 4096
+        size_bytes = size_bytes + size
+    end
+    -- dirname
     dst = dst or '.'
     local dirname = ('%s/%s_%s'):format(dst, name,
         protectVersion(ver))
@@ -785,6 +801,7 @@ local function makePackage(name, files, deps, ver, d1, d2, dst, recommends)
         arch = ARCH,
         deps = deps,
         recommends = recommends,
+        size_bytes = size_bytes,
         description1 = d1,
         description2 = d2,
     }
-- 
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