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./bin/py/query_config (currently accessible via ./bin/query_config in the
git repo, and not available if roverlay is installed) is a script for
(a) accessing roverlay's config in shell-usable format:
eval $(query_config OVERLAY_DIR OVERLAY_NAME)
(b) replacing variables in file templates (@@VARNAME@@):
query_config --config-file ~user/roverlay/R-overlay.conf \
--from-file <template file> -O <outfile>
This can be used to create config file templates without having to worry
about the actual file paths / server address / etc., for example (nginx,
server{} block):
server {
listen @@NGINX_SERVER_ADDR@@;
server_name @@NGINX_SERVER_NAME@@;
...
# package mirror dir
root @@OVERLAY_DISTDIR_ROOT@;
...
}
(NGINX_SERVER_ADDR and NGINX_SERVER_NAME would have to be given with
the -v/--variable switch when calling query_config).
The exit code indicates whether all variables could be replaced or not.
TODO:
* make config option aliases available for (b) (e.g. DISTDIR)
* doc
* script name
* config templates
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André Erdmann
GitWeb