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-<!--
-
- Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 The SCons Foundation
-
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
-
- The above copyright notice and this permission notice shall be included
- in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
- KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
- WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
--->
-
- <para>
-
- Once a program is built,
- it is often appropriate to install it in another
- directory for public use.
- You use the &Install; method
- to arrange for a program, or any other file,
- to be copied into a destination directory:
-
- </para>
-
- <scons_example name="ex1">
- <file name="SConstruct" printme="1">
- env = Environment()
- hello = env.Program('hello.c')
- env.Install('__ROOT__/usr/bin', hello)
- </file>
- <file name="hello.c">
- int main() { printf("Hello, world!\n"); }
- </file>
- </scons_example>
-
- <para>
-
- Note, however, that installing a file is
- still considered a type of file "build."
- This is important when you remember that
- the default behavior of &SCons; is
- to build files in or below the current directory.
- If, as in the example above,
- you are installing files in a directory
- outside of the top-level &SConstruct; file's directory tree,
- you must specify that directory
- (or a higher directory, such as <literal>/</literal>)
- for it to install anything there:
-
- </para>
-
- <scons_output example="ex1">
- <scons_output_command>scons -Q</scons_output_command>
- <scons_output_command>scons -Q __ROOT__/usr/bin</scons_output_command>
- </scons_output>
-
- <para>
-
- It can, however, be cumbersome to remember
- (and type) the specific destination directory
- in which the program (or any other file)
- should be installed.
- This is an area where the &Alias;
- function comes in handy,
- allowing you, for example,
- to create a pseudo-target named <literal>install</literal>
- that can expand to the specified destination directory:
-
- </para>
-
- <scons_example name="ex2">
- <file name="SConstruct" printme="1">
- env = Environment()
- hello = env.Program('hello.c')
- env.Install('__ROOT__/usr/bin', hello)
- env.Alias('install', '__ROOT__/usr/bin')
- </file>
- <file name="hello.c">
- int main() { printf("Hello, world!\n"); }
- </file>
- </scons_example>
-
- <para>
-
- This then yields the more natural
- ability to install the program
- in its destination as follows:
-
- </para>
-
- <scons_output example="ex2">
- <scons_output_command>scons -Q</scons_output_command>
- <scons_output_command>scons -Q install</scons_output_command>
- </scons_output>
-
- <section>
- <title>Installing Multiple Files in a Directory</title>
-
- <para>
-
- You can install multiple files into a directory
- simply by calling the &Install; function multiple times:
-
- </para>
-
- <scons_example name="ex3">
- <file name="SConstruct" printme="1">
- env = Environment()
- hello = env.Program('hello.c')
- goodbye = env.Program('goodbye.c')
- env.Install('__ROOT__/usr/bin', hello)
- env.Install('__ROOT__/usr/bin', goodbye)
- env.Alias('install', '__ROOT__/usr/bin')
- </file>
- <file name="hello.c">
- int main() { printf("Hello, world!\n"); }
- </file>
- <file name="goodbye.c">
- int main() { printf("Goodbye, world!\n"); }
- </file>
- </scons_example>
-
- <para>
-
- Or, more succinctly, listing the multiple input
- files in a list
- (just like you can do with any other builder):
-
- </para>
-
- <sconstruct>
- env = Environment()
- hello = env.Program('hello.c')
- goodbye = env.Program('goodbye.c')
- env.Install('__ROOT__/usr/bin', [hello, goodbye])
- env.Alias('install', '__ROOT__/usr/bin')
- </sconstruct>
-
- <para>
-
- Either of these two examples yields:
-
- </para>
-
- <scons_output example="ex3">
- <scons_output_command>scons -Q install</scons_output_command>
- </scons_output>
-
- </section>
-
- <section>
- <title>Installing a File Under a Different Name</title>
-
- <para>
-
- The &Install; method preserves the name
- of the file when it is copied into the
- destination directory.
- If you need to change the name of the file
- when you copy it, use the &InstallAs; function:
-
- </para>
-
- <scons_example name="ex4">
- <file name="SConstruct" printme="1">
- env = Environment()
- hello = env.Program('hello.c')
- env.InstallAs('__ROOT__/usr/bin/hello-new', hello)
- env.Alias('install', '__ROOT__/usr/bin')
- </file>
- <file name="hello.c">
- int main() { printf("Hello, world!\n"); }
- </file>
- </scons_example>
-
- <para>
-
- This installs the <literal>hello</literal>
- program with the name <literal>hello-new</literal>
- as follows:
-
- </para>
-
- <scons_output example="ex4">
- <scons_output_command>scons -Q install</scons_output_command>
- </scons_output>
-
- </section>
-
- <section>
- <title>Installing Multiple Files Under Different Names</title>
-
- <para>
-
- Lastly, if you have multiple files that all
- need to be installed with different file names,
- you can either call the &InstallAs; function
- multiple times, or as a shorthand,
- you can supply same-length lists
- for both the target and source arguments:
-
- </para>
-
- <scons_example name="ex5">
- <file name="SConstruct" printme="1">
- env = Environment()
- hello = env.Program('hello.c')
- goodbye = env.Program('goodbye.c')
- env.InstallAs(['__ROOT__/usr/bin/hello-new',
- '__ROOT__/usr/bin/goodbye-new'],
- [hello, goodbye])
- env.Alias('install', '__ROOT__/usr/bin')
- </file>
- <file name="hello.c">
- int main() { printf("Hello, world!\n"); }
- </file>
- <file name="goodbye.c">
- int main() { printf("Goodbye, world!\n"); }
- </file>
- </scons_example>
-
- <para>
-
- In this case, the &InstallAs; function
- loops through both lists simultaneously,
- and copies each source file into its corresponding
- target file name:
-
- </para>
-
- <scons_output example="ex5">
- <scons_output_command>scons -Q install</scons_output_command>
- </scons_output>
-
- </section>
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