build/test/rescan_header.py
Steven Watanabe ee613a6a28 Implement feature relevance.
* New feature <relevant> which is automatically deduced in most cases.
* Features which are not relevant do not affect target paths and
  do not prevent merging of virtual targets.
* generators.jam: generator.run always returns usage-requirements
  to allow usage-requirements in non-top-level generators.  This
  is necessary because we're using usage-requirements to track
  relevance from flags.
* New rule toolset.uses-features to specify features that the rule
  checks manually, instead of using toolset.flags.  In the future,
  we should consider restricting the properties actually passed,
  to detect errors.
* Adjust tests to handle the new paths (verified by inspection).
* Add temporary option --ignore-relevance to consider all features relevant
  to aid migration.
* New rule property.evaluate-conditional-relevance which helps tracking
  relevance in <conditional>.
* Widely scattered changes to use the new interfaces.
2018-01-13 09:13:49 -07:00

266 lines
5.3 KiB
Python
Executable File

#!/usr/bin/python
# Copyright 2012 Steven Watanabe
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
import BoostBuild
t = BoostBuild.Tester(use_test_config=False)
# Test a header loop that depends on (but does not contain) a generated header.
t.write("test.cpp", '#include "header1.h"\n')
t.write("header1.h", """\
#ifndef HEADER1_H
#define HEADER1_H
#include "header2.h"
#endif
""")
t.write("header2.h", """\
#ifndef HEADER2_H
#define HEADER2_H
#include "header1.h"
#include "header3.h"
#endif
""")
t.write("header3.in", "/* empty file */\n")
t.write("jamroot.jam", """\
import common ;
make header3.h : header3.in : @common.copy ;
obj test : test.cpp : <implicit-dependency>header3.h ;
""")
t.run_build_system(["-j2"])
t.expect_addition("bin/header3.h")
t.expect_addition("bin/$toolset/debug*/test.obj")
t.expect_nothing_more()
t.rm(".")
# Test a linear sequence of generated headers.
t.write("test.cpp", '#include "header1.h"\n')
t.write("header1.in", """\
#ifndef HEADER1_H
#define HEADER1_H
#include "header2.h"
#endif
""")
t.write("header2.in", """\
#ifndef HEADER2_H
#define HEADER2_H
#include "header3.h"
#endif
""")
t.write("header3.in", "/* empty file */\n")
t.write("jamroot.jam", """\
import common ;
make header1.h : header1.in : @common.copy ;
make header2.h : header2.in : @common.copy ;
make header3.h : header3.in : @common.copy ;
obj test : test.cpp :
<implicit-dependency>header1.h
<implicit-dependency>header2.h
<implicit-dependency>header3.h ;
""")
t.run_build_system(["-j2", "test"])
t.expect_addition("bin/header1.h")
t.expect_addition("bin/header2.h")
t.expect_addition("bin/header3.h")
t.expect_addition("bin/$toolset/debug*/test.obj")
t.expect_nothing_more()
t.rm(".")
# Test a loop in generated headers.
t.write("test.cpp", '#include "header1.h"\n')
t.write("header1.in", """\
#ifndef HEADER1_H
#define HEADER1_H
#include "header2.h"
#endif
""")
t.write("header2.in", """\
#ifndef HEADER2_H
#define HEADER2_H
#include "header3.h"
#endif
""")
t.write("header3.in", """\
#ifndef HEADER2_H
#define HEADER2_H
#include "header1.h"
#endif
""")
t.write("jamroot.jam", """\
import common ;
actions copy {
sleep 1
cp $(>) $(<)
}
make header1.h : header1.in : @common.copy ;
make header2.h : header2.in : @common.copy ;
make header3.h : header3.in : @common.copy ;
obj test : test.cpp :
<implicit-dependency>header1.h
<implicit-dependency>header2.h
<implicit-dependency>header3.h ;
""")
t.run_build_system(["-j2", "test"])
t.expect_addition("bin/header1.h")
t.expect_addition("bin/header2.h")
t.expect_addition("bin/header3.h")
t.expect_addition("bin/$toolset/debug*/test.obj")
t.expect_nothing_more()
t.rm(".")
# Test that all the dependencies of a loop are updated before any of the
# dependents.
t.write("test1.cpp", '#include "header1.h"\n')
t.write("test2.cpp", """\
#include "header2.h"
int main() {}
""")
t.write("header1.h", """\
#ifndef HEADER1_H
#define HEADER1_H
#include "header2.h"
#endif
""")
t.write("header2.h", """\
#ifndef HEADER2_H
#define HEADER2_H
#include "header1.h"
#include "header3.h"
#endif
""")
t.write("header3.in", "\n")
t.write("sleep.bat", """\
::@timeout /T %1 /NOBREAK >nul
@ping 127.0.0.1 -n 2 -w 1000 >nul
@ping 127.0.0.1 -n %1 -w 1000 >nul
@exit /B 0
""")
t.write("jamroot.jam", """\
import common ;
import os ;
if [ os.name ] = NT
{
SLEEP = call sleep.bat ;
}
else
{
SLEEP = sleep ;
}
rule copy { common.copy $(<) : $(>) ; }
actions copy { $(SLEEP) 1 }
make header3.h : header3.in : @copy ;
exe test : test2.cpp test1.cpp : <implicit-dependency>header3.h ;
""")
t.run_build_system(["-j2", "test"])
t.expect_addition("bin/header3.h")
t.expect_addition("bin/$toolset/debug*/test1.obj")
t.expect_addition("bin/$toolset/debug*/test2.obj")
t.expect_addition("bin/$toolset/debug*/test.exe")
t.expect_nothing_more()
t.touch("header3.in")
t.run_build_system(["-j2", "test"])
t.expect_touch("bin/header3.h")
t.expect_touch("bin/$toolset/debug*/test1.obj")
t.expect_touch("bin/$toolset/debug*/test2.obj")
t.expect_touch("bin/$toolset/debug*/test.exe")
t.expect_nothing_more()
t.rm(".")
# Test a loop that includes a generated header
t.write("test1.cpp", '#include "header1.h"\n')
t.write("test2.cpp", """\
#include "header2.h"
int main() {}
""")
t.write("header1.h", """\
#ifndef HEADER1_H
#define HEADER1_H
#include "header2.h"
#endif
""")
t.write("header2.in", """\
#ifndef HEADER2_H
#define HEADER2_H
#include "header3.h"
#endif
""")
t.write("header3.h", """\
#ifndef HEADER3_H
#define HEADER3_H
#include "header1.h"
#endif
""")
t.write("sleep.bat", """\
::@timeout /T %1 /NOBREAK >nul
@ping 127.0.0.1 -n 2 -w 1000 >nul
@ping 127.0.0.1 -n %1 -w 1000 >nul
@exit /B 0
""")
t.write("jamroot.jam", """\
import common ;
import os ;
if [ os.name ] = NT
{
SLEEP = call sleep.bat ;
}
else
{
SLEEP = sleep ;
}
rule copy { common.copy $(<) : $(>) ; }
actions copy { $(SLEEP) 1 }
make header2.h : header2.in : @copy ;
exe test : test2.cpp test1.cpp : <implicit-dependency>header2.h <include>. ;
""")
t.run_build_system(["-j2", "test"])
t.expect_addition("bin/header2.h")
t.expect_addition("bin/$toolset/debug*/test1.obj")
t.expect_addition("bin/$toolset/debug*/test2.obj")
t.expect_addition("bin/$toolset/debug*/test.exe")
t.expect_nothing_more()
t.cleanup()