我没有使用SCons更新项目的自动构建。首先我改变了源文件中的内容，然后scons告诉我：
scons: done reading SConscript files.
scons: Building targets ...
scons: `.' is up to date.
scons: done building targets.
如何更新自动构建？
更新20170601：
leder @ PC-LAP127：〜/ Source / Eiffel / PF_HP-mt $ scons --tree = prune project = pf_hp.ecf
+-.
+-.sconf_temp
+-SConstruct
+-build
| +-build/F_code-unix.tar
| | +-pf_hp.ecf
| | +-project.py
| | +-/home/leder/Source/Eiffel/library/Eiffel-Loop/precomp/linux-x86-64/console-application.ecf
| | +-/home/leder/Source/Eiffel/library/Eiffel-Loop/precomp/console-application.ecf
| +-build/linux-x86-64
| +-build/linux-x86-64/package
| +-build/linux-x86-64/package/bin
| +-build/linux-x86-64/package/bin/pf_hp
| +-[build/F_code-unix.tar]
+-config.log
+-pf_hp.ecf
+-project.py
leder @ PC-LAP127：〜/ Source / Eiffel / PF_HP-mt $ tree -L 2。
.
├── build
│ ├── F_code-unix.tar
│ ├── linux-x86-64
│ └── version.txt
├── config.log
├── EIFGENs
│ └── classic
├── git_push.sh
├── input.txt
├── LICENSE.gpl
├── LIESMICH.txt
├── pf_hp.ecf
├── pf_hp.ecf.old
├── pf_hp.pecf
├── project.py
├── project.pyc
├── README.txt
├── SConstruct
├── source
│ ├── application_root.e
│ ├── build_info.e
│ ├── folding
│ ├── notes
│ ├── sub-applications
│ └── testing
└── test.sh
9 directories, 17 files
leder @ PC-LAP127：〜/ Source / Eiffel / PF_HP-mt $ less SConstruct
import eiffel_loop.eiffel.SConstruct
SConstruct (END)
UPDATE_20170601，eiffel_loop.eiffel.SConstruct.py：
# author: "Finnian Reilly"
# copyright: "Copyright (c) 2001-2012 Finnian Reilly"
# contact: "finnian at eiffel hyphen loop dot com"
# license: "MIT license (See: en.wikipedia.org/wiki/MIT_License)"
# date: "3 June 2010"
# revision: "0.2"
import os, sys
from os import path
from eiffel_loop.eiffel import project
from eiffel_loop.scons import eiffel
from eiffel_loop.eiffel.ecf import EIFFEL_CONFIG_FILE
from eiffel_loop.eiffel.ecf import FREEZE_BUILD
from eiffel_loop.eiffel.ecf import C_CODE_TAR_BUILD
from eiffel_loop.eiffel.ecf import FINALIZED_BUILD
from SCons.Script import *
# SCRIPT START
arguments = Variables()
arguments.Add (EnumVariable('cpu', 'Set target cpu for compiler', 'x64', allowed_values=('x64', 'x86')))
arguments.Add (
EnumVariable('action', 'Set build action', 'finalize',
allowed_values=(
Split ("freeze finalize finalize_and_test finalize_and_install install_resources make_installers")
)
)
)
arguments.Add (BoolVariable ('compile_eiffel', 'Compile Eiffel source (no implies C compile only)', 'yes'))
arguments.Add (BoolVariable ('install', 'Set to \'yes\' to install finalized release', 'no'))
arguments.Add (PathVariable ('project', 'Path to Eiffel configuration file', 'default.ecf'))
#arguments.Add (
# ListVariable (
# 'MSC_options', 'Visual Studio setenv.cmd options', '', Split ("/Debug /Release /x86 /x64 /ia64 /vista /xp /2003 /2008 /win7")
# )
#)
env = Environment (variables = arguments)
Help (arguments.GenerateHelpText (env) + '\nproject: Set to name of Eiffel project configuration file (*.ecf)\n')
if env.GetOption ('help'):
None
else:
is_windows_platform = sys.platform == 'win32'
project_py = project.read_project_py ()
# MSC_options = env.get ('MSC_options').data
# if MSC_options:
# project_py.MSC_options = MSC_options
# print 'MSC_options:', project_py.MSC_options
ecf_path = env.get ('project')
action = env.get ('action')
compile_eiffel = env.get ('compile_eiffel')
project_py.set_build_environment (env.get ('cpu'))
env.Append (ENV = os.environ, ISE_PLATFORM = os.environ ['ISE_PLATFORM'])
if 'ISE_C_COMPILER' in os.environ:
env.Append (ISE_C_COMPILER = os.environ ['ISE_C_COMPILER'])
config = EIFFEL_CONFIG_FILE (ecf_path)
project_files = [ecf_path, 'project.py']
if action == 'install_resources':
build = FREEZE_BUILD (config, project_py)
build.post_compilation ()
else:
if action in ['finalize', 'make_installers']:
tar_build = C_CODE_TAR_BUILD (config, project_py)
build = FINALIZED_BUILD (config, project_py)
if compile_eiffel:
env.Append (EIFFEL_BUILD = tar_build)
env.Append (BUILDERS = {'eiffel_compile' : Builder (action = eiffel.compile_eiffel)})
f_code = env.eiffel_compile (tar_build.target (), project_files)
else:
f_code = None
else:
build = FREEZE_BUILD (config, project_py)
f_code = None
env.Append (C_BUILD = build)
env.Append (BUILDERS = {'c_compile' : Builder (action = eiffel.compile_C_code)})
if f_code:
executable = env.c_compile (build.target (), tar_build.target ())
else:
executable = env.c_compile (build.target (), project_files)
if build.precompile_path:
env.Append (BUILDERS = {'precomp_copier' : Builder (action = eiffel.copy_precompile)})
precompile_name = path.basename (build.precompile_path)
precompile_dir = path.dirname (path.dirname (build.precompile_path))
precomp_ecf = env.precomp_copier (build.precompile_path, path.join (precompile_dir, precompile_name))
if f_code:
Depends (tar_build.target (), build.precompile_path)
else:
Depends (executable, build.precompile_path)
eiffel.check_C_libraries (env, build)
if len (build.SConscripts) > 0:
print "\nDepends on External libraries:"
for script in build.SConscripts:
print "\t" + script
SConscript (build.SConscripts, exports='env')
# only make library a dependency if it doesn't exist or object files are being cleaned out
lib_dependencies = []
for lib in build.scons_buildable_libs:
if env.GetOption ('clean') or not path.exists (lib):
if not lib in lib_dependencies:
lib_dependencies.append (lib)
Depends (executable, lib_dependencies)
productions = [executable, precomp_ecf]
if f_code:
productions.append (tar_build.target ())
env.NoClean (productions)
答案 0 :(得分：1)
如果 SCons 不知道或看到哪些文件已被更改，则另一种方法是每次都运行 EiffelStudio 编译器。它在工作台模式下执行快速增量重新编译，因此您不会因为从头开始等待重新编译而受到惩罚。
注意。如果您没有使用图形环境，可以使用稍微小一点的ecb版本的编译器构建项目（而不是常规的ec ）。但这是以与IDE不兼容为代价的（例如，在完全非交互式的编译设置中）。