#!/bin/sh

#	$NetBSD: vmwgfx2netbsd,v 1.1 2022/02/17 01:21:03 riastradh Exp $
#
# $ /path/to/vmwgfx2netbsd > /path/to/files.vmwgfx.new
#
# Run from the top-level vmwgfx source directory.

set -Ceu

: ${MV:=mv}

# Location of the vmwgfx sources relative to $NETBSDSRCDIR.
vmwgfx_top=external/bsd/drm2/dist/drm/vmwgfx

# config(5) flag for the vmwgfx driver.
vmwgfx_flag=vmwgfx

env CONFIG_ACPI=y \
env src=. \
make -f Makefile -V '$(vmwgfx-y)' \
| tr ' ' '\n' \
| grep -v -e '^[[:space:]]*$' \
| sed -e 's,\.o$,.c,' \
| sort -u \
| awk '
	BEGIN {
		duplicates = 0
	}
	{
		if (index($1, "/")) {
			dir = $1
			sub("/[^/]*$", "/", dir)
			base = $1
			sub("^.*/", "", base)
		} else {
			dir = ""
			base = $1
		}
		fqbase = (base ~ "^vmwgfx_" ? "" : "vmwgfx_") base
		if (seen[fqbase]) {
			printf("Duplicate basename: %s %s\n", fqbase,
			    seen[fqbase]) >"/dev/stderr"
			duplicates = 1
		}
		if (duplicates)
			next
		printf("%s %s\n", $1, dir fqbase)
	}
	END {
		if (duplicates) {
			printf("Time to rewite me!\n") > "/dev/stderr"
			exit 1
		}
	}
' \
| while read from to; do
	# If the move already happened, that's fine: the makefile
	# detects duplicates.
	if [ "x$from" != "x$to" -a \! -f "$to" ]; then
		${MV} -f -- "$from" "$to"
	fi
	printf 'file\t%s\t%s\n' "$vmwgfx_top/$to" "$vmwgfx_flag"
done \
| sort -u