task.mk/task.mk

389 lines
13 KiB
Makefile

# }> [github.com/daylinmorgan/task.mk] <{ #
# Copyright (c) 2022 Daylin Morgan
# MIT License
# version: v22.9.28-2-g6dad870-dev
#
# task.mk should be included at the bottom of your Makefile with `-include .task.mk`
# See below for the standard configuration options that should be set prior to including this file.
# You can update your .task.mk with `make _update-task.mk`
# ---- [config] ---- #
HEADER_STYLE ?= b_cyan
ACCENT_STYLE ?= b_yellow
PARAMS_STYLE ?= $(ACCENT_STYLE)
GOAL_STYLE ?= $(ACCENT_STYLE)
MSG_STYLE ?= faint
DIVIDER ?=
DIVIDER_STYLE ?= default
HELP_SEP ?=
WRAP ?= 100
# python f-string literals
EPILOG ?=
USAGE ?={ansi.header}usage{ansi.end}:\n make <recipe>\n
INHERIT_SHELL ?=
# ---- [builtin recipes] ---- #
ifeq (help,$(firstword $(MAKECMDGOALS)))
HELP_ARGS := $(wordlist 2,$(words $(MAKECMDGOALS)),$(MAKECMDGOALS))
export HELP_ARGS
endif
## h, help | show this help
h help:
$(call py,help_py) || { echo "exiting early!"; exit 1; }
_help: export SHOW_HIDDEN=true
_help: help
ifdef PRINT_VARS
$(foreach v,$(PRINT_VARS),$(eval export $(v)))
.PHONY: vars v
vars v:
$(call py,vars_py,$(PRINT_VARS))
endif
### | args: -ws --hidden
### task.mk builtins: | args: -d --hidden
## _print-ansi | show all possible ansi color code combinations
_print-ansi:
$(call py,print_ansi_py)
# functions to take f-string literals and pass to python print
tprint = $(call py,print_py,$(1))
tprint-sh = $(call pysh,print_py,$(1))
tconfirm = $(call py,confirm_py,$(1))
## _update-task.mk | downloads latest development version of task.mk
_update-task.mk:
$(call tprint,{a.b_cyan}Updating task.mk{a.end})
curl https://raw.githubusercontent.com/daylinmorgan/task.mk/main/task.mk -o .task.mk
.PHONY: h help _help _print-ansi _update-task.mk
TASK_MAKEFILE_LIST := $(filter-out $(word $(words $(MAKEFILE_LIST)),$(MAKEFILE_LIST)),$(MAKEFILE_LIST))
export MAKEFILE_LIST MAKE TASK_MAKEFILE_LIST
ifndef INHERIT_SHELL
SHELL := $(shell which bash)
endif
# ---- [python/bash script runner] ---- #
define _newline
endef
_escape_shellstring = $(subst `,\`,$(subst ",\",$(subst $$,\$$,$(subst \,\\,$1))))
_escape_printf = $(subst \,\\,$(subst %,%%,$1))
_create_string = $(subst $(_newline),\n,$(call _escape_shellstring,$(call _escape_printf,$1)))
_printline = printf -- "<----------------------------------->\n"
ifdef DEBUG
define _debug_runner
@printf "$(1) Script:\n";$(_printline);
@printf "$(call _create_string,$(3))\n" | cat -n
@$(_printline)
@$(2) <(printf "$(call _create_string,$(3))")
endef
py = $(call _debug_runner,Python,python3,$($(1)))
tbash = $(call _debug_runner,Bash,bash,$($(1)))
else
py = @python3 <(printf "$(call _create_string,$($(1)))")
tbash = @bash <(printf "$(call _create_string,$($(1)))")
endif
pysh = python3 <(printf "$(call _create_string,$($(1)))")
# ---- [python scripts] ---- #
define help_py
import argparse
from collections import namedtuple
import os
import re
import subprocess
import sys
from textwrap import wrap
$(utils_py)
a = ansi = Ansi(target="stdout")
MaxLens = namedtuple("MaxLens", "goal msg")
pattern = re.compile(
r"^## (?P<goal>.*?) \| (?P<msg>.*?)(?:\s?\| args: (?P<msgargs>.*?))?$$|^### (?P<rawmsg>.*?)?(?:\s?\| args: (?P<rawargs>.*?))?$$"
)
goal_pattern = re.compile(r"""^(?!#|\t)(.*):.*\n\t""", re.MULTILINE)
def parseargs(argstring):
parser = argparse.ArgumentParser()
parser.add_argument("--align")
parser.add_argument("-d", "--divider", action="store_true")
parser.add_argument("-ws", "--whitespace", action="store_true")
parser.add_argument("-ms", "--msg-style", type=str)
parser.add_argument("-gs", "--goal-style", type=str)
parser.add_argument("--hidden", action="store_true")
return parser.parse_args(argstring.split())
def divider(len):
return ansi.style(f" {cfg.div*len}", "div_style")
def gen_makefile():
makefile = ""
for file in os.getenv("MAKEFILE_LIST", "").split():
with open(file, "r") as f:
makefile += f.read() + "\n\n"
return makefile
def parse_help(file, hidden=False):
for line in file.splitlines():
match = pattern.search(line)
if match:
if (
not hidden
and not os.getenv("SHOW_HIDDEN")
and str(match.groupdict().get("goal")).startswith("_")
):
pass
else:
yield {k: v for k, v in match.groupdict().items() if v is not None}
def recipe_help_header(goal):
item = [
i
for i in list(parse_help(gen_makefile(), hidden=True))
if "goal" in i and goal == i["goal"]
]
if item:
return fmt_goal(
item[0]["goal"],
item[0]["msg"],
len(item[0]["goal"]),
item[0].get("msgargs", ""),
)
else:
return f" {ansi.style(goal,'goal')}"
def get_goal_deps(goal="task.mk"):
make = os.getenv("MAKE", "make")
cmd = [make, "-p", "-n", "-i"]
for file in os.getenv("TASK_MAKEFILE_LIST", "").split():
cmd.extend(["-f", file])
database = subprocess.check_output(cmd, universal_newlines=True)
dep_pattern = re.compile(r"^" + goal + ":(.*)?")
for line in database.splitlines():
match = dep_pattern.search(line)
if match and match.groups()[0]:
return wrap(
f"{ansi.style('deps','default')}: {ansi.style(match.groups()[0].strip(),'msg')}",
width=cfg.wrap,
initial_indent=" ",
subsequent_indent=" ",
)
def parse_goal(file, goal):
goals = goal_pattern.findall(file)
matched_goal = [i for i in goals if goal in i.split()]
output = []
if matched_goal:
output.append(recipe_help_header(matched_goal[0]))
deps = get_goal_deps(matched_goal[0])
if deps:
output.extend(deps)
lines = file.splitlines()
loc = [n for n, l in enumerate(lines) if l.startswith(f"{matched_goal[0]}:")][0]
recipe = []
for line in lines[loc + 1 :]:
if not line.startswith("\t"):
break
recipe.append(f" {line.strip()}")
output.append(divider(max((len(l.strip()) for l in recipe))))
output.append("\n".join(recipe))
else:
deps = get_goal_deps(goal)
if deps:
output.append(recipe_help_header(goal))
output.extend(deps)
if not output:
output.append(f"{ansi.style('ERROR','b_red')}: Failed to find goal: {goal}")
return output
def fmt_goal(goal, msg, max_goal_len, argstr):
args = parseargs(argstr)
goal_style = args.goal_style.strip() if args.goal_style else "goal"
msg_style = args.msg_style.strip() if args.msg_style else "msg"
return (
ansi.style(f" {goal:>{max_goal_len}}", goal_style)
+ f" $(HELP_SEP) "
+ ansi.style(msg, msg_style)
)
def fmt_rawmsg(msg, argstr, maxlens):
args = parseargs(argstr)
lines = []
msg_style = args.msg_style.strip() if args.msg_style else "msg"
if not os.getenv("SHOW_HIDDEN") and args.hidden:
return []
if msg:
if args.align == "sep":
lines.append(
f"{' '*(maxlens.goal+len(cfg.sep)+4)}{ansi.style(msg,msg_style)}"
)
elif args.align == "center":
lines.append(f" {ansi.style(msg.center(sum(maxlens)),msg_style)}")
else:
lines.append(f" {ansi.style(msg,msg_style)}")
if args.divider:
lines.append(divider(len(cfg.sep) + sum(maxlens) + 2))
if args.whitespace:
lines.append("\n")
return lines
def print_help():
lines = [cfg.usage]
items = list(parse_help(gen_makefile()))
maxlens = MaxLens(
*(max((len(item[x]) for item in items if x in item)) for x in ["goal", "msg"])
)
for item in items:
if "goal" in item:
lines.append(
fmt_goal(
item["goal"], item["msg"], maxlens.goal, item.get("msgargs", "")
)
)
if "rawmsg" in item:
lines.extend(fmt_rawmsg(item["rawmsg"], item.get("rawargs", ""), maxlens))
lines.append(cfg.epilog)
print("\n".join(lines))
def print_arg_help(help_args):
print(f"{ansi.style('task.mk recipe help','header')}\n")
for arg in help_args.split():
print("\n".join(parse_goal(gen_makefile(), arg)))
print()
def main():
help_args = os.getenv("HELP_ARGS")
if help_args:
print_arg_help(help_args)
sys.exit(1)
else:
print_help()
if __name__ == "__main__":
main()
endef
define print_py
$(utils_py)
sys.stderr.write(f"""$(2)\n""")
endef
define print_ansi_py
$(utils_py)
import sys
codes_names = {getattr(ansi, attr): attr for attr in ansi.__dict__}
for code in sorted(codes_names.keys(), key=lambda item: (len(item), item)):
sys.stderr.write(
f"{codes_names[code]:>20} {cfg.sep} {code+'*****'+ansi.end} {sep} {repr(code)}\n"
)
endef
define vars_py
import os
$(utils_py)
ansi = Ansi(target="stdout")
vars = "$2".split()
length = max((len(v) for v in vars))
print(f"{ansi.header}vars{ansi.end}:\n")
for v in vars:
print(f" {ansi.params}{v:<{length}}{ansi.end} = {os.getenv(v)}")
print()
endef
define confirm_py
import sys
$(utils_py)
def confirm():
"""
Ask user to enter Y or N (case-insensitive).
:return: True if the answer is Y.
:rtype: bool
"""
answer = ""
while answer not in ["y", "n"]:
sys.stderr.write(f"""$(2) {a.b_red}[Y/n]{a.end} \n""")
answer = input().lower()
return answer == "y"
if confirm():
sys.exit()
else:
sys.exit(1)
endef
define utils_py
import os
import sys
from dataclasses import dataclass
@dataclass
class Config:
div: str
sep: str
epilog: str
usage: str
wrap: int
color2byte = dict(
black=0,
red=1,
green=2,
yellow=3,
blue=4,
magenta=5,
cyan=6,
white=7,
)
state2byte = dict(
bold=1, faint=2, italic=3, underline=4, blink=5, fast_blink=6, crossed=9
)
addfg = lambda byte: byte + 30
addbg = lambda byte: byte + 40
class Ansi:
"""ANSI escape codes"""
def __init__(self, target="stdout"):
self.target = target
self.setcode("end", "\033[0m")
self.setcode("default", "\033[38m")
self.setcode("bg_default", "\033[48m")
for name, byte in color2byte.items():
self.setcode(name, f"\033[{addfg(byte)}m")
self.setcode(f"b_{name}", f"\033[1;{addfg(byte)}m")
self.setcode(f"d_{name}", f"\033[2;{addfg(byte)}m")
for bgname, bgbyte in color2byte.items():
self.setcode(
f"{name}_on_{bgname}", f"\033[{addbg(bgbyte)};{addfg(byte)}m"
)
for name, byte in state2byte.items():
self.setcode(name, f"\033[{byte}m")
self.add_cfg()
def setcode(self, name, escape_code):
"""create attr for style and escape code"""
if os.getenv("NO_COLOR", False):
setattr(self, name, "")
elif (self.target == "stderr" and not sys.stderr.isatty()) or (
self.target == "stdout" and not sys.stdout.isatty()
):
setattr(self, name, "")
else:
setattr(self, name, escape_code)
def custom(self, fg=None, bg=None):
"""use custom color"""
code, end = "\033[", "m"
if not sys.stdout.isatty() or os.getenv("NO_COLOR", False):
return ""
else:
if fg:
if isinstance(fg, int):
code += f"38;5;{fg}"
elif (isinstance(fg, list) or isinstance(fg, tuple)) and len(fg) == 1:
code += f"38;5;{fg[0]}"
elif (isinstance(fg, list) or isinstance(fg, tuple)) and len(fg) == 3:
code += f"38;2;{';'.join((str(i) for i in fg))}"
else:
print("Expected one or three values for fg as a list")
sys.exit(1)
if bg:
if isinstance(bg, int):
code += f"{';' if fg else ''}48;5;{bg}"
elif (isinstance(bg, list) or isinstance(bg, tuple)) and len(bg) == 1:
code += f"{';' if fg else ''}48;5;{bg[0]}"
elif (isinstance(bg, list) or isinstance(bg, tuple)) and len(bg) == 3:
code += f"{';' if fg else ''}48;2;{';'.join((str(i) for i in bg))}"
else:
print("Expected one or three values for bg as a list")
sys.exit(1)
return code + end
def add_cfg(self):
cfg_styles = {
"header": "$(HEADER_STYLE)",
"accent": "$(ACCENT_STYLE)",
"params": "$(PARAMS_STYLE)",
"goal": "$(GOAL_STYLE)",
"msg": "$(MSG_STYLE)",
"div_style": "$(DIVIDER_STYLE)",
}
for name, style in cfg_styles.items():
self.setcode(name, getattr(self, style))
def style(self, text, style):
if style not in self.__dict__:
print(f"unknown style: {style}")
sys.exit(1)
else:
return f"{self.__dict__[style]}{text}{self.__dict__['end']}"
a = ansi = Ansi()
cfg = Config(
"$(DIVIDER)", "$(HELP_SEP)", f"""$(EPILOG)""", f"""$(USAGE)""", int("$(WRAP)")
)
endef