[英]How to send input on stdin to a python script defined inside a Makefile?
鑒於此問題的答案, 在 Makefile 中嵌入 Python 以設置有效的 make 變量!
define NEWLINE
endef
define PYTHON_SCRIPT_CODE
import sys
print("hi")
endef
SDK_PATH := $(shell echo \
'$(subst $(NEWLINE),@NEWLINE@,${PYTHON_SCRIPT_CODE})' | \
sed 's/@NEWLINE@/\n/g' | python -)
default:
@echo 'SDK Path Detected: $(SDK_PATH)'
如何將數據通過管道傳輸到 python std 中? 例如:
define PYTHON_SCRIPT_CODE
import sys
print("hi")
print(sys.stdin.read())
endef
# pseudocode
SDK_PATH := $(shell bash --version | PYTHON_SCRIPT_CODE)
default:
@echo 'SDK Path Detected: $(SDK_PATH)'
會輸出:
SDK Path Detected: hi
GNU bash, version 4.4.19(1)-release (x86_64-pc-linux-gnu)
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
現在,我正在這樣做:
define NEWLINE
endef
BASH_VERSION := $(shell bash --version)
define PYTHON_SCRIPT_CODE
import sys
print("Hi")
print("${BASH_VERSION}")
endef
SDK_PATH := $(shell echo \
'$(subst $(NEWLINE),@NEWLINE@,${PYTHON_SCRIPT_CODE})' | \
sed 's/@NEWLINE@/\n/g' | python -)
default:
@echo 'SDK Path Detected: $(SDK_PATH)'
結果:(沒有新行)
相關問題:
新示例,無需將內容輸入 Python 腳本:
#!/usr/bin/make -f
ECHOCMD:=/bin/echo -e
SHELL := /bin/bash
define NEWLINE
endef
VERSION := $(shell bash --version)
# With this, you cannot use single quotes inside your python code
define PYTHON_VERSION_CODE
import re, sys;
program_version = """${VERSION}"""
match = re.search("Copyright[^\d]+(\d+)", program_version);
if match:
if int( match.group(1) ) >= 2018:
sys.stdout.write("1")
else:
sys.stdout.write( match.group(1) )
else:
sys.stdout.write("0")
endef
# Due to this, you cannot use single quotes inside your python code
PYTHON_SCRIPT_RESULTS := $(shell echo \
'$(subst $(NEWLINE),@NEWLINE@,${PYTHON_VERSION_CODE})' | \
sed 's/@NEWLINE@/\n/g' | python -)
all:
printf 'Results: %s\n' "${PYTHON_SCRIPT_RESULTS}"
結果:
對我來說,規避所有命令行引用問題的最簡單方法是使用 GNUmake 的$(file )
函數將代碼寫入$(file )
。 您甚至可以在define
d 變量中使用#
作為 Python 注釋:
VERSION := $(shell bash --version)
# With this, you can use any form of quotes inside your python code
define PYTHON_VERSION_CODE :=
# -*- coding: iso-8859-15 -*-
import re, sys;
program_version = "${VERSION}"
match = re.search("Copyright[^\d]+(\d+)", program_version);
if match:
if int( match.group(1) ) >= 2018:
sys.stdout.write("1")
else:
sys.stdout.write( "match:" + match.group(1) )
else:
sys.stdout.write("0")
endef
$(file > test.py,$(PYTHON_VERSION_CODE))
PYTHON_SCRIPT_RESULTS := $(shell python test.py)
.PHONY: all
all:
@echo $(PYTHON_SCRIPT_RESULTS)
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