Forum OpenACS Improvement Proposals (TIPs): TIP #145 Allowing symlinks for APM package scanning
Here is a straightforward patch which honours the fact that there are target platforms which do not allow for symlinking.
I personally use this to test my package developments in different OpenACS installations/setups (e.g., HEAD, a specific branch) without cloning the package sources into the "packages" directory (e.g. via a SCM tool) of each and every installation. This is especially useful if the packages under development are not monitored by the same SCM as acs-core is (i.e., CVS) ... so that the SCM tools do not interfere.
For deployments, this might be interesting to share a set of package directories between OpenACS instances.
a) A revised patch which supports link values (e.g., ../) relative to the "packages" dir. We could also limit the support to symbolic links also (where supported, by passing the "-symbolic" flag to [file link]).
b) This could also become an optional feature, activated by an APM package parameter, e.g.: "AllowSymlinks" or the like.
Does this also add the capability for scanning the installation/www directory tree for changed xql files within an installation for reloading without a reboot?
No, it does not, I am afraid. To be honest, I have hardly used xql-based query management in my development projects, my experience with it equals to zero. So, I cannot really comment on your request ...
Anyway, I can't vote, but symlinks seems useful.