awesome: refactor LUA_PATH env var and don't expose it at runtime #60329
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This commit partly reinstates changes from 5465d6f that had been somehow reverted in 17d3eb2. Also, a comment has been added in the hope that future changes won't do the same. Additionally, refactor the LUA_PATH env var to ensure that the internal lgi lua files can't be required explicitly and to avoid possible name clashes (this fixes issue #60232). Finally, rather than using prepending `?.lua` append `;;` to LUA_PATH. Quoting @psychon: > This is interpreted by Lua as "add the default search path here" (which does > indeed contain ?.lua, but also contains more). Testing done: - Build with `nix-build -I /path/to/repo -A awesome` - Start an X session with xterm only - Start xephyr, e.g. `Xephyr :1 -name xephyr -screen 512x384 -ac -br -noreset &` - Run awesome like `DISPLAY=:1.0 ./result/bin/awesome`. Additionally, add `--search` options to expose lua modules that have a name clash with lgi's internal ones (see #60232 for more details) and `require` them in `rc.lua` to prove that they are loaded correctly
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LGTM, thanks! |
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Thanks @dtzWill. Is there anything I can do to port this to the 19.03 branch? |
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Cc: @dtzWill
This commit partly reinstates changes from 5465d6f that had been somehow
reverted in 17d3eb2. Also, a comment has been added in the hope that future
changes won't do the same.
Additionally, refactor the LUA_PATH env var to ensure that the internal lgi lua
files can't be required explicitly and to avoid possible name clashes (this
fixes issue #60232).
Finally, rather than using prepending
?.luaappend;;to LUA_PATH. Quoting@psychon:
Testing done:
nix-build -I /path/to/repo -A awesomeXephyr :1 -name xephyr -screen 512x384 -ac -br -noreset &DISPLAY=:1.0 ./result/bin/awesome. Additionally, add--searchoptions to expose lua modules that have a name clash with lgi'sinternal ones (see NixOS 19.03: Awesome Window Manager exposes lgi incorrectly in its LUA_PATH (regression) #60232 for more details) and
requirethem inrc.luatoprove that they are loaded correctly
Motivation for this change
Things done
sandboxinnix.confon non-NixOS)nix-shell -p nix-review --run "nix-review wip"./result/bin/)nix path-info -Sbefore and after)