clamav, clamav-server: On-Demand and On-Access clamav scan launchd scripts

[essandess (Steve Smith)]

The ports clamav-server and clamav work great for getting a working clamav daemon up and running on macOS.

But they do not contain daemons for the two actual applications these ports would be used for: on-demand and/or on-access anti-malware scans of specific volumes or directories.

Building on top of the clamav-server, clamav, and fswatch ports, I've written a couple launchd plists and a bash script that does this, here: ​https://github.com/essandess/macOS-clamAV

I'm posting to request that the clamav-server or clamav ports add on-demand and on-access scanning capabilities.

You're welcome to use the scripts in that repo.

Note that the on-access scan script, ​https://github.com/essandess/macOS-clamAV/blob/master/ClamdScanOnAccess.wrapper, and its corresponding daemondo launchd plist are hand-coded, and not auto-created from a port file and all the definitions for stuff like startupitem.start that would have to be written to adapt this repo to Macports.

[ryandesign (Ryan Carsten Schmidt)]

The Milestone field is only used when the Component field is "base".

[mf2k (Frank Schima)]

See #57827

[essandess (Steve Smith)]

In d0f1e462100fc98a1a77d2ac8c1b28530eee46d2/macports-ports (master):

clamav-server: Update Portfile with major upgrade, enhancements, and bugfixes

• Complete re-write of Portfile
• Control clamd and freshclam with startupitem, daemondo
• macOS-specific clamd.conf and freshclam.conf configurations
• Add Scan-On-Demand bash script with corresponding Finder.app contextual menu item
• Add Scan-On-Schedule launchdaemon with environment variable control
• Add Scan-On-Access launchdaemon for ~/Downloads and ~/Desktop directories
• Volunteer as manintainer

Closes: #58003
Closes: #50570