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gluon-core: sysconfig: avoid unnecessary writes

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Do not write files when the content is unchanged.

Avoids a few unnecessary filesystem writes when resetting ifname
sysconfigs on each upgrade.
This commit is contained in:
Matthias Schiffer 2021-12-28 20:41:29 +01:00
parent c2a5f57c40
commit 05c29512ec
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GPG Key ID: 16EF3F64CB201D9C
1 changed files with 4 additions and 0 deletions
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package/gluon-core/luasrc/usr/lib/lua/gluon/sysconfig.lua
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@ -11,6 +11,10 @@ local function get(_, name)
end end
local function set(_, name, val) local function set(_, name, val)
if val == get(nil, name) then
return
end
if val then if val then
local f = io.open(sysconfigdir .. name, 'w+') local f = io.open(sysconfigdir .. name, 'w+')
f:write(val, '\n') f:write(val, '\n')