typo

slides/makefiles/examples/.gitignore

@@ -0,0 +1 @@
+*

slides/makefiles/examples/check

@@ -0,0 +1,8 @@
+CHECKER = command -v
+.PHONY: check
+check:
+	$(CHECKER) fortune >/dev/null
+	$(CHECKER) cowsay >/dev/null
+
+file: | check
+	fortune | cowsay > $@

slides/makefiles/examples/fort_1

@@ -0,0 +1,13 @@
+
+forts/big_fort.txt: forts/short.txt forts/long.txt
+	cat forts/short.txt forts/long.txt > forts/big_fort.txt
+
+forts/:
+	mkdir forts
+
+forts/short.txt: forts/
+	fortune -s > forts/short.txt
+
+forts/long.txt: forts/
+	fortune -l > forts/long.txt
+

slides/makefiles/examples/fort_2

@@ -0,0 +1,21 @@
+
+forts/big_fort.txt: forts/short.txt forts/long.txt
+		cat $^ > $@
+
+README.md:
+	echo "For an example makefile for python" > $@
+	echo "check out the nd6 dice-roller at" >> $@
+	echo "ssh -p 2222 soft.dmz.rs -t nd6" >> $@
+
+
+forts/: README.md
+	mkdir -p $@
+
+forts/short.txt: forts/
+	fortune -s > $@
+
+forts/long.txt: forts/
+	fortune -l > $@
+
+clean:
+	rm -rf forts

slides/makefiles/examples/pats

@@ -0,0 +1,18 @@
+IMAGES = $(wildcard jpgs/*)
+COL = $(patsubst jpgs/%,collection/%,$(IMAGES))
+
+.PHONY: help
+help:
+	$(info try 'show' or 'output')
+.PHONY: show
+show:
+	$(info IMAGES is $(IMAGES))
+	$(info Col is $(COL))
+
+.PHONY: output
+output: $(COL)
+
+collection/%.jpg: jpgs/%.jpg
+	mkdir -p $(@D)
+	cp $< $@
+

slides/makefiles/examples/rules

@@ -0,0 +1,15 @@
+CP = ln -f
+
+output: pngs/ldap.png
+
+jpgs/ldap.jpg: ../../ldap/ldap.jpg
+	mkdir -p $(dir $@)
+	$(CP) $< $@
+
+pngs/%.png: jpgs/%.jpg
+	mkdir -p $(dir $@)
+	$(info making $(@F) in $(@D))
+	magick $< $@
+
+clean:
+	$(RM) -r pngs jpgs

slides/makefiles/examples/vars

@@ -0,0 +1,10 @@
+include /etc/os-release
+DAY != date +%d
+MESSAGE != fortune -s
+
+motd_$(DAY):
+	$(info Hello $(USER))
+	$(info Placing message:)
+	echo "Welcome to $(NAME)" > $@
+	echo $(MESSAGE) >> $@
+

slides/makefiles/makefiles.md

@@ -0,0 +1,13 @@
+---
+title:
+- Making Makefiles
+author:
+- Malin
+
+theme:
+- Warsaw
+colortheme:
+- orchid
+---
+
+(presentation in presentation.md)

slides/makefiles/presentation.md

@@ -0,0 +1,314 @@
+# Intro
+
+The fundamental problem:
+
+```bash
+git submodule update --init soundscape
+cargo build --release
+install -pm755 target/release/tap /usr/local/bin/
+```
+
+*But you can't type this for each run.*
+
+***
+
+## First Solution
+
+```bash
+#!/bin/sh
+git submodule update --init soundscape
+cargo build --release
+install -pm755 target/release/tap /usr/local/bin/
+```
+
+At this point, every test takes 10 minutes.
+
+## Second Solution
+
+```bash
+#!/bin/sh
+[ -f soundscape/.git ] || git submodule update --init soundscape
+[ -f target/release/tap ] || cargo build --release
+[ -f target/release/tap ] || \
+    install -pm755 target/release/tap /usr/local/bin/
+```
+
+***
+
+# Makefile Solutions
+
+- input, process, output.
+- automatic idempotence
+
+```bash
+INSTALL_DIR = /usr/local/bin
+
+soundscape/.git:
+    git submodule update --init soundscape
+
+/usr/local/bin/tap: target/release/tap
+	install -pm755 target/release/tap $(INSTALL_DIR)
+
+target/release/tap: src soundscape/.git
+	cargo build --release
+```
+
+***
+
+# The Three Sigils
+
+Readable, but slow:
+
+```make fort_1
+forts/big_fort.txt: forts/short.txt forts/long.txt
+	cat forts/short.txt forts/long.txt > forts/big_fort.txt
+
+forts/:
+	mkdir forts
+
+forts/short.txt: forts/
+	fortune -s > forts/short.txt
+
+forts/long.txt: forts/
+	fortune -l > forts/long.txt
+```
+
+***
+
+| Make this | From That | From These |
+|:---------:|:---------:|:----------:|
+|  `$@`     |  `$<`     |   `$^`     |
+
+
+```make fort_2
+forts/big_fort.txt: forts/short.txt forts/long.txt
+		cat $^ > $@
+
+forts/: README.md
+	mkdir $@
+forts/short.txt: forts/
+	fortune -s > $@
+forts/long.txt: forts/
+	fortune -l > $@
+```
+
+***
+
+# Gotcha: Directories
+
+
+```make fort_2
+forts/big_fort.txt: forts/short.txt forts/long.txt
+		cat $^ > $@
+
+forts/: README.md
+	mkdir $@
+forts/short.txt: forts/
+	fortune -s > $@
+forts/long.txt: forts/
+	fortune -l > $@
+
+README.md:
+    echo "Find the fortunes in the fort dir" > $@
+```
+
+***
+
+# Variables
+
+```make vars
+include /etc/os-release
+DAY != date +%d
+MESSAGE != fortune -s
+
+motd_$(DAY):
+	$(info Placing message:)
+	echo "Welcome to $(NAME)" > $@
+	echo $(MESSAGE) >> $@
+```
+
+### Gotcha: Hanging Quotes
+
+> echo "Welcome to "Arch Linux""
+
+***
+
+## Add New Variables
+
+```make
+make -f vars -e MESSAGE="Red alert, all hands on deck!"
+```
+
+### Gotcha: Quote, or Risk Escape
+
+```make
+make -f vars -e MESSAGE="<h1> HTML Headers </h1>"
+```
+
+***
+
+# Gotcha: Variables from Shell
+
+This works:
+
+```make
+file:
+    $(info Hello $(USER))
+```
+
+...but not this:
+
+```make
+file:
+    user=bob
+    echo $user
+```
+
+Nor this:
+
+```make
+numbers:
+    for x in 1 2 3 4 5; do
+        echo $x
+    done > $@
+```
+
+Nor this:
+
+```make
+numbers:
+    for x in 1 2 3 4 5; do echo $x ; done > $@
+```
+
+***
+
+### Ugly Fixes are Ugly
+
+This works, but don't.
+
+```make
+file:
+	for x in 1 2 ;\
+			do echo $$x ;\
+	done > $@
+```
+
+***
+
+
+# Phonies, and the Problems with Lies
+
+## Clean
+
+
+```make
+.PHONY: clean
+clean:
+    git clean -fdX
+```
+
+## Gotcha: Recompiling without Changes
+
+```make
+CHECKER = command -v
+.PHONY: check
+check:
+	$(CHECKER) fortune >/dev/null
+	$(CHECKER) cowsay >/dev/null
+
+file: check # Needs a '|'
+	fortune | cowsay > $@
+```
+
+***
+
+
+## Non-Compiling Checks
+
+- `make` -n
+- *Gotcha*: shell output variables.
+
+***
+
+
+# The Fourth Sigil: `%`
+
+Create standardized rules with `%`.
+
+
+```make rules
+CP = ln -f
+
+output: pngs/ldap.png
+
+jpgs/ldap.jpg: ../../ldap/ldap.jpg
+	mkdir -p $(dir $@)
+	$(CP) $< $@
+
+pngs/%.png: jpgs/%.jpg
+	mkdir -p $(dir $@)
+	$(info making $(@F) in $(@D))
+	magick $< $@
+```
+
+***
+
+# Bling: makefile2graph
+
+```graph
+
+┌────────────────┐     ┌────────────────────┐
+│ forts/long.txt │ ◀── │       forts/       │
+└────────────────┘     └────────────────────┘
+  │                      │
+  │                      │
+  │                      ▼
+  │                    ┌────────────────────┐
+  │                    │  forts/short.txt   │
+  │                    └────────────────────┘
+  │                      │
+  │                      │
+  │                      ▼
+  │                    ┌────────────────────┐
+  └──────────────────▶ │ forts/big_fort.txt │
+                       └────────────────────┘
+```
+
+### Gotcha: The Binary is Called `make2graph`
+
+- Works with GUI tools maybe, IDK, I don't use Windows.
+- Some systems can use `graph-easy`, but it's outdated.
+
+***
+
+# Patsubst and Wildcards
+
+
+```make pats
+IMAGES = $(wildcard jpgs/*)
+COL = $(patsubst jpgs/%,collection/%,$(IMAGES))
+
+.PHONY: show
+show:
+	$(info IMAGES is $(IMAGES))
+	$(info Col is $(COL))
+
+.PHONY: output
+output: $(COL)
+
+collection/%.jpg: jpgs/%.jpg
+	mkdir -p $(@D)
+	cp $< $@
+
+```
+
+***
+
+# Use Cases
+
+- Backups
+- Making Websites
+    * `git clone https://gitlab.com/bindrpg/blag`
+- `NOT installations`
+    - ...but maybe installations?
+- Setting