ending notes
This commit is contained in:
parent
7bc84ab8a3
commit
fa026b7eda
GPG Key ID:
52295D2377F4D70F
@ -10,314 +10,4 @@ colortheme:
|
||||
- orchid
|
||||
---
|
||||
|
||||
# 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 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
|
||||
|
||||
(presentation in presentation.md)
|
||||
|
||||
314
slides/makefiles/presentation.md
Normal file
314
slides/makefiles/presentation.md
Normal file
@ -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 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
|
||||
Loading…
Reference in New Issue
Block a user