Bump minimal LGI version to 0.8.0 (#1350)

Turns out that menubar already uses features that were only added in
that version.

Fixes: https://github.com/awesomeWM/awesome/issues/1348
Signed-off-by: Uli Schlachter <psychon@znc.in>

.travis.yml

@@ -16,7 +16,7 @@ env:
     # Note: luarocks does not work with Lua 5.0.
     - LUA=5.1 LUANAME=lua5.1 BUILD_IN_DIR=/tmp/awesome-build
     # Lua 5.2 with older lgi and screen size not divisible by 2.
-    - LUA=5.2 LUANAME=lua5.2 LGIVER=0.7.1 TESTS_SCREEN_SIZE=1921x1079
+    - LUA=5.2 LUANAME=lua5.2 LGIVER=0.8.0 TESTS_SCREEN_SIZE=1921x1079
     # Lua 5.3 isn't available in Ubuntu Trusty, so some magic below installs it.
     - LUA=5.3 LUANAME=lua5.3 LUALIBRARY=/usr/lib/liblua.so DO_COVERAGE=codecov
   global:

build-utils/lgi-check.sh

@@ -27,9 +27,9 @@ lua -e 'require("lgi")' || die
 # Check the version number.
 # Keep this in sync with lib/gears/surface.lua.in and .travis.yml (LGIVER)!
 lua -e '_, _, major_minor, patch = string.find(require("lgi.version"), "^(%d%.%d)%.(%d)");
-	if tonumber(major_minor) < 0.7 or (tonumber(major_minor) == 0.7 and tonumber(patch) < 1) then
+	if tonumber(major_minor) < 0.8 or (tonumber(major_minor) == 0.8 and tonumber(patch) < 0) then
 		error(string.format("lgi is too old, need at least version %s, got %s.",
-		                    "0.7.1", require("lgi.version"))) end' || die
+		                    "0.8.0", require("lgi.version"))) end' || die
 
 # Check for the needed gi files
 lua -e 'l = require("lgi") assert(l.cairo, l.Pango, l.PangoCairo, l.GLib, l.Gio)' || die

docs/01-readme.md

@@ -37,7 +37,7 @@ environment):
 
 - [CMake >= 3.0.0](https://cmake.org)
 - [Lua >= 5.1.0](https://www.lua.org) or [LuaJIT](http://luajit.org)
-- [LGI >= 0.7.1](https://github.com/pavouk/lgi)
+- [LGI >= 0.8.0](https://github.com/pavouk/lgi)
 - [xproto >= 7.0.15](https://www.x.org/archive//individual/proto/)
 - [libxcb >= 1.6](https://xcb.freedesktop.org/) with support for the RandR, XTest, Xinerama, SHAPE and
   XKB extensions

lib/gears/surface.lua

@@ -14,8 +14,8 @@ local hierarchy = require("wibox.hierarchy")
 
 -- Keep this in sync with build-utils/lgi-check.sh!
 local ver_major, ver_minor, ver_patch = string.match(require('lgi.version'), '(%d)%.(%d)%.(%d)')
-if tonumber(ver_major) <= 0 and (tonumber(ver_minor) < 7 or (tonumber(ver_minor) == 7 and tonumber(ver_patch) < 1)) then
-    error("lgi too old, need at least version 0.7.1")
+if tonumber(ver_major) <= 0 and (tonumber(ver_minor) < 8 or (tonumber(ver_minor) == 8 and tonumber(ver_patch) < 0)) then
+    error("lgi too old, need at least version 0.8.0")
 end
 
 local surface = { mt = {} }