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Top Forums Shell Programming and Scripting Blog-Thread: Creating a Shell Wrapper and Runtime Modifier (SWARM) Post 303046071 by sea on Wednesday 22nd of April 2020 09:16:18 PM
Old 04-22-2020
Since preparing 'translatable' strings for functions is boring, I thought I'd implement some more functions from TUI.

What does one need, when one wants cross-platform-compatible scripts?
A way to reckognize and differ them of course!
Code:
	swarm.os.desktop() { #
	# Returns the name of the DE/WM or terminal application name
	# Assigned to: $DESKTOP
		$PRINTF '%s\n' "${XDG_CURRENT_DESKTOP:-${DESKTOP_SESSION:-${TERM:-TTY}}}"
	}
	swarm.os.distro() { #
	# Returns the name of the distro
	# Assigned to: $DISTRO
        	# This /etc is not as dynamic as I'd like
        	# but its THE absolute standard - as far as I'm aware
        	if [[ ! -f "/etc/os-release" ]] || ! $GREP -E  ^NAME= "/etc/os-release"  | $SED s,"NAME=","",g >&1 
		then	local e=/etc
			local SF="release version"    # Search For

			local results=$(for a in $SF;do \ls "$e"|"$GREP" "$a";done)
			local resultsFiles=$(for each in $results;do [[ -f "$e/$each" ]] && $PRINTF "$each ";done)

			for each in $resultsFiles
			do      strcat="$($GREP -i ^NAME= $e/$each)"
				[[ -n "$strcat" ]] && break
				strcat="$($GREP -i ^id= $e/$each)"
				[[ -n "$strcat" ]] && break
			done
			$PRINTF "${strcat/*=}"|$SED s,'\"','',g
		fi
	}
	swarm.os.based() { #
	# Returns arch, debian, redhat or unknown
	# Assigned to: $BASED
    		out=""
		if [[ -f /etc/redhat-release ]]
		then	out=redhat
		elif [[ -f /etc/arch-release ]]
		then	out=arch
		elif [[ -f /etc/debian_version ]]
		then	out=debian
		else	out=unknown
			# Do further checking
			# Changes according to: https://github.com/icy/pacapt/blob/ng/pacapt (153-180)
			swarm.util.which cave   1>/dev/null 2>/dev/null && out=exherbo
			swarm.util.which emerge 1>/dev/null 2>/dev/null && out=gentoo
			swarm.util.which port   1>/dev/null 2>/dev/null && out=mac
			swarm.util.which brew   1>/dev/null 2>/dev/null && out=mac
			swarm.util.which zypper 1>/dev/null 2>/dev/null && out=opensuse
			# Not sure if i handle these 2 properly
			swarm.util.which pkg 1>/dev/null 2>/dev/null && out=openbsd
			swarm.util.which pkgng 1>/dev/null 2>/dev/null && out=freebsd
		fi
		builtin echo "$out"
	}
	DISTRO="$(swarm.os.distro)"
	DESKTOP="$(swarm.os.desktop)"
	BASED="$(swarm.os.based)"

If you happen to have any recomended additions or changes, please, let me know so.
Have fun! Smilie

Last edited by sea; 04-23-2020 at 11:50 AM.. Reason: code fix for swarm.os.distro
 

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Mail::Milter::Wrapper::DecodeSRS(3pm)			User Contributed Perl Documentation		     Mail::Milter::Wrapper::DecodeSRS(3pm)

NAME
Mail::Milter::Wrapper::DecodeSRS - milter wrapper to decode SRS-encoded return path SYNOPSIS
use Mail::Milter::Wrapper::DecodeSRS; my $milter = ...; my $wrapper = new Mail::Milter::Wrapper::DecodeSRS($milter); my $wrapper2 = &DecodeSRS($milter); # convenience DESCRIPTION
Mail::Milter::Wrapper::DecodeSRS is a convenience milter wrapper which decodes MAIL FROM: return paths which have been encoded by the Sender Rewrite Scheme, SRS. (More information: http://www.libsrs2.org/) This wrapper internally understands both the SRS0 and SRS1 encod- ing schemes documented by the Mail::SRS author. The decoded address is made available to the contained milter via the "envfrom" callback, in the same way that a raw address would. NOTE: If the address is not SRS encoded, the contained milter is NOT called for the duration of the message; instead, SMFIS_ACCEPT is returned. This is because the milter writer is expected to use this wrapper in a chain that also includes the contained milter without wrapping, in order to prevent a malicious sender from using SRS to bypass access checks. For instance, the following is a proper usage of this wrapper in a chain: my $envfrommilter = ...; my $combinedmilter = new Mail::Milter::Chain( new Mail::Milter::Wrapper::UnwrapSRS($envfrommilter), $envfrommilter ); This behavior can also be used if, e.g., the MTA already does one form of MAIL FROM: check, and the contained milter repeats that same database check against SRS rewritten addresses. (A good example would be a milter emulating Sendmail's access_db map.) AUTHOR
Todd Vierling, <tv@duh.org> <tv@pobox.com> SEE ALSO
Mail::Milter::Wrapper perl v5.8.8 2004-02-26 Mail::Milter::Wrapper::DecodeSRS(3pm)
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