From 0ca98b1ba32b3145ac4e8e48d53c1f016c44808a Mon Sep 17 00:00:00 2001
From: Thomas Kolb <cfr34k-git@tkolb.de>
Date: Sun, 2 Jul 2023 16:34:06 +0200
Subject: [PATCH] Makefile: add targets to build images from XZed logs

---
 Makefile | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/Makefile b/Makefile
index 0d4404c..9b65601 100644
--- a/Makefile
+++ b/Makefile
@@ -33,3 +33,25 @@ imgs/%-avg_pwr-highres.webp: logs/%.csv
 					./plot_wf_longterm.py -a avg_pwr -r 10 -o $$tmpfile $< && \
 					convert $$tmpfile -quality 100 $@ && \
 					rm $$tmpfile
+
+# Targets to re-build images from xz-ed logs
+
+SRCS_XZ:=$(wildcard logs/*.csv.xz)
+IMGS1_XZ:=$(patsubst %.csv, %-avg_pwr-fromxz.webp, $(SRCS_XZ))
+IMGS2_XZ:=$(patsubst %.csv, %-peak-fromxz.webp, $(SRCS_XZ))
+IMGS_XZ:=$(patsubst logs/%, imgs/%, $(IMGS1_XZ) $(IMGS2_XZ))
+
+.PHONY: from_xz
+from_xz: imgs/ $(IMGS_XZ)
+
+imgs/%-avg_pwr-fromxz.webp: logs/%.csv.xz
+	tmpfile=$$(mktemp /tmp/spec.XXXXX.png) && \
+					./plot_wf_longterm.py -a avg_pwr -r 60 -o $$tmpfile $< && \
+					convert $$tmpfile -quality 100 $@ && \
+					rm $$tmpfile
+
+imgs/%-peak-fromxz.webp: logs/%.csv.xz
+	tmpfile=$$(mktemp /tmp/spec.XXXXX.png) && \
+					./plot_wf_longterm.py -a peak -r 60 -o $$tmpfile $< && \
+					convert $$tmpfile -quality 100 $@ && \
+					rm $$tmpfile