From c2f85c284b81c3aabe7f4fa9794f72c6dade4b4a Mon Sep 17 00:00:00 2001
From: Jonas Smedegaard <dr@jones.dk>
Date: Sun, 15 Sep 2024 11:36:10 +0200
Subject: setup make rules to handle HedgeDoc

---
 .gitignore        |  1 +
 Makefile          |  8 ++++++++
 _make/hedgedoc.mk | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 60 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Makefile
 create mode 100644 _make/hedgedoc.mk

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..7ed12ce
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/_hedgedoc/
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..bdc5983
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,8 @@
+PADLIST = \
+ _NOTES.qmd:bp3data
+
+# config hints used by helper script hedgedoc
+export HEDGEDOC_SERVER = https://pad.degrowth.net/
+export HEDGEDOC_CONFIG_DIR = $(CURDIR)/_hedgedoc
+
+include _make/*.mk
diff --git a/_make/hedgedoc.mk b/_make/hedgedoc.mk
new file mode 100644
index 0000000..7ae31b7
--- /dev/null
+++ b/_make/hedgedoc.mk
@@ -0,0 +1,51 @@
+# Make snippet for exchanging data with a HedgeDoc pad
+#
+# Copyright 2024, Jonas Smedegaard <dr@jones.dk>
+# SPDX-License-Identifier: GPL-3+
+#
+# Setup:
+#  * set variable PAD_LIST
+#  * set variable PAD_REPLACE if supported and wanted
+#  * include this make snippet
+#
+# whitespace-delimited list of file-URI pairs,
+# each consisting of a relative path to a local file
+# and a relative URI to a HedgeDoc pad,
+# separated by a colon.
+#PAD_LIST = \
+# README.md:Xg5jgtkWQNqRzobI0qwrtw \
+# our_project/subdir/foo.data:XxgHj9yCQ_e6bsETro5DMA
+#
+# when set to a non-empty value (and HedgeDoc service supports it),
+# importing from local file will attempt to replace existing pad,
+# instead of creating a new pad
+#PAD_REPLACE = yes
+#
+# Dependencies:
+#  * hedgedoc <https://github.com/hedgedoc/cli>
+#  * perl v5.36 or newer
+
+# resolve files and URIs from PADLIST
+_PADFILES = $(foreach i,$(PADLIST),$(firstword $(subst :,$() ,$i)))
+_padfile2uri = $(patsubst $1:%,%,$(filter $1:%,$(PADLIST)))
+
+# register with HedgeDoc service
+pad-login:
+	hedgedoc login --email
+
+# list available pads at HedgeDoc service
+pad-list:
+	hedgedoc history
+
+pad-export-all: $(_PADFILES:%=pad-export-to-%)
+
+# export from pad to local file, and ensure it ends with a newline
+$(_PADFILES:%=pad-export-to-%): pad-export-to-%:
+	$(if $(wildcard $(dir $*)),,mkdir --parents $(dir $*))
+	hedgedoc export --md $(call _padfile2uri,$*) $*
+	perl -gpi -e 's/\s*\z/\n/' $*
+
+$(_PADFILES:%=pad-import-from-%): pad-import-from-%: %
+	hedgedoc import $< $(if $(PAD_WANTED),$(call _padfile2uri,$*))
+
+.PHONY: pad-login pad-list pad-export-all $(_PADFILES:%=pad-export-to-%) $(_PADFILES:%=pad-import-from-%)
-- 
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