在make 4.2之前,如何获取$(shell命令)的退出状态和输出?
在上添加了变量在make 4.2之前,如何获取$(shell命令)的退出状态和输出?,shell,makefile,return,return-value,Shell,Makefile,Return,Return Value,在上添加了变量.SHELLSTATUS。但是我的大多数linux都使用make版本4.1。如何在旧版本的make上获取make$(shell…)命令的退出状态和输出结果 使用make 4.2,我可以做到: newmake: printf '%s\n' "$(shell command && \ ( printf 'Successfully created the zip file!\n'; exit 0 ) || \ ( printf 'E
.SHELLSTATUS
。但是我的大多数linux都使用make版本4.1
。如何在旧版本的make上获取make$(shell…)命令的退出状态和输出结果
使用make 4.2,我可以做到:
newmake:
printf '%s\n' "$(shell command && \
( printf 'Successfully created the zip file!\n'; exit 0 ) || \
( printf 'Error: Could not create the zip file!\n'; exit 1 ) )"
printf 'Exit status: '%s'\n' "${.SHELLSTATUS}"
正确运行的:
printf '%s\n' "Successfully created the zip file!"
Successfully created the zip file!
printf 'Exit status: '%s'\n' "0"
Exit status: 0
printf '%s\n' "Successfully created the zip file!"
Successfully created the zip file!
printf 'Exit status: '%s'\n' "1"
Exit status: 1
但是,如果我使用make 4.1或更高版本,则没有.SHELLSTATUS
变量。然后,我尝试定义自己的.SHELLSTATUS
变量,如下所示:
oldmake:
printf '%s\n' "$(shell command && \
( printf 'Successfully created the zip file!\n'; $(eval exit_status := 0) echo ${exit_status} > /dev/null ) || \
( printf 'Error: Could not create the zip file!\n'; $(eval exit_status := 1) echo ${exit_status} > /dev/null ) )"
printf 'Exit status: '%s'\n' "${exit_status}"
但是,它不能正确运行:
printf '%s\n' "Successfully created the zip file!"
Successfully created the zip file!
printf 'Exit status: '%s'\n' "0"
Exit status: 0
printf '%s\n' "Successfully created the zip file!"
Successfully created the zip file!
printf 'Exit status: '%s'\n' "1"
Exit status: 1
如您所见,正确的消息已打印,但退出状态应为0
,而不是1
通知
消息成功创建了zip文件代码>和错误:无法创建zip文件代码>仅用于说明,不能在$(shell…
之外使用。shell中有一个功能齐全的Python
脚本,它将结果输出到屏幕:
define NEWLINE
endef
define RELEASE_CODE
from __future__ import print_function
import os
import zipfile
version = "${version}"
if not version:
print( "Error: You need pass the release version. For example: make release version=1.1", end="@NEWNEWLINE@" )
exit(1)
CURRENT_DIRECTORY = os.path.dirname( os.path.realpath( __file__ ) )
print( "Packing files on %s" % CURRENT_DIRECTORY, end="@NEWNEWLINE@" )
file_names = []
initial_file_names = [
"Makefile",
"build.bat",
"fc-portuges.def",
os.path.join("setup", "makefile.mk"),
os.path.join("setup", "scripts", "timer_calculator.sh"),
]
for direcory_name, dirs, files in os.walk(CURRENT_DIRECTORY):
if ".git" in direcory_name:
continue
for filename in files:
filepath = os.path.join( direcory_name, filename )
if ".git" in filepath or not ( filepath.endswith( ".tex" )
or filepath.endswith( ".bib" )
or filepath.endswith( ".pdf" ) ):
continue
file_names.append( filepath )
for filename in initial_file_names:
filepath = os.path.join( CURRENT_DIRECTORY, filename )
file_names.append( filepath )
zipfilepath = os.path.join( CURRENT_DIRECTORY, version + ".zip" )
zipfileobject = zipfile.ZipFile(zipfilepath, mode="w")
zipfilepathreduced = os.path.dirname( os.path.dirname( zipfilepath ) )
try:
for filename in file_names:
relative_filename = filename.replace( zipfilepathreduced, "" )
print( relative_filename, end="@NEWNEWLINE@" )
zipfileobject.write( filename, relative_filename, compress_type=zipfile.ZIP_DEFLATED )
except Exception as error:
print( "", end="@NEWNEWLINE@" )
print( "An error occurred: %s" % error, end="@NEWNEWLINE@" )
exit(1)
finally:
zipfileobject.close()
print( "", end="@NEWNEWLINE@" )
print( "Successfully created the release version on:@NEWNEWLINE@ %s!" % zipfilepath , end="" )
endef
all:
printf '%s\n' "$(shell echo \
'$(subst ${NEWLINE},@NEWLINE@,${RELEASE_CODE})' | \
sed 's/@NEWLINE@/\n/g' | python - && \
printf 'Successfully created the zip file!\n' || \
printf 'Error: Could not create the zip file!\n' )" | sed 's/@NEWNEWLINE@/\n/g'
现在它运行正常了,但是我缺少python退出代码,可以用这个来修复它。SHELLSTATUS
:
all:
printf '%s\n' "$(shell echo \
'$(subst ${NEWLINE},@NEWLINE@,${RELEASE_CODE})' | \
sed 's/@NEWLINE@/\n/g' | python - && \
( printf 'Successfully created the zip file!\n'; exit 0 ) || \
( printf 'Error: Could not create the zip file!\n'; exit 1 ) )" | sed 's/@NEWNEWLINE@/\n/g'
exit "${.SHELLSTATUS}"
但是,它只适用于make版本4.2
或更高版本
相关的:
我通过创建一个文件成功地做到了这一点:
fixedmake:
printf '%s\n' "$(shell command && \
printf 'Successfully created the zip file!\n' || \
( printf 'Error: Could not create the zip file!\n'; \
printf 'error\n' > /tmp/has_errors ) )"
if [ -e /tmp/has_errors ]; \
then printf 'Exit with errror\n'; \
rm /tmp/has_errors; \
else \
printf 'Exit with success\n'; \
fi;
-->
printf“%s\n”已成功创建zip文件
成功创建了zip文件!
如果[-e/tmp/有错误]\
然后printf'Exit with error\n'\
rm/tmp/有错误\
否则\
printf“成功退出\n”\
fi;
成功退出
有更好的选择吗?我完全不明白你为什么要使用$(shell…
)。这太复杂了,太没有意义了。$(shell…
的唯一效果是它在运行任何配方之前展开。但你从来没有试图利用它。相反,将脚本直接移动到配方中看起来很自然
例如,考虑这一点:
unused = """
ifeq (true,false)
"""
# some python stuff
print("Hello world")
exit(1)
unused = """
endif
# here comes make stuff
.ONESHELL:
.PHONY: all
all:
@/usr/bin/python $(lastword $(MAKEFILE_LIST))
ec=$$?
echo "script exitcode is $$ec"
exit $$ec
#"""
也许更好的解决方案是简单地将python
作为单个规则的自定义SHELL
。虽然,在这种情况下,在同一条规则中混合python和shell脚本可能会很棘手(但我认为这不是真正必要的)。从源代码构建和安装更新的make
是否切实可行?否。重点是为最终用户提供一个轻松的解决方案。管理创建临时文件更实用,因为除了要求它们运行sudo-apt-install-make
之外,不需要任何更改。