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Make "tinc add" idempotent.

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When calling "tinc add" multiple times with the same variable and value,
make sure only one unique line is added to the configuration file.
This commit is contained in:
Guus Sliepen 2015-02-09 15:23:59 +01:00
parent 0b310bf406
commit 4b2ddded2c
3 changed files with 8 additions and 1 deletions
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doc/tinc.texi
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@ -2293,6 +2293,7 @@ To set a variable for a specific host, use the notation @var{host}.@var{variable
@cindex add
@item add @var{variable} @var{value}
As above, but without removing any previously existing configuration variables.
If the variable already exists with the given value, nothing happens.
@cindex del
@item del @var{variable} [@var{value}]