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Selecting the version requirement could be the suggested approach to insert a package dependency. It allows you to definitely create a balance between restricting changes and getting improvements and features.
by printing the status messages that indicate when It truly is "just reading" the SConstruct file, and when it's actually building the goal files. This is to make it very clear when SCons is executing the Python statements that make up the SConstruct file, and when SCons is actually executing the commands or other actions to build the mandatory files.
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using a service account JSON file. Service account IDs are usually not delicate information and therefore their exposure
assignments from the command line. This allows you to definitely modify aspects of your build in response to specifications around the command line. The following code sets the $CCFLAGS construction variable in response towards the debug flag being set while in the ARGUMENTS dictionary:
What are classified as the best known asymptotic bounds on the size in the largest non-trivial subgroup in the symmetric group?
To make command-line build variables more valuable, you might want to provide some help text to describe the available variables when you ask for help (operate scons -h). You are able to write this text by hand, but SCons provides some assistance. Variables objects provide a GenerateHelpText method to generate text that describes the various variables that have been added to it.
things when an input file changes, so that the constructed software is up to date. By default, SCons keeps track of this through a content signature
Install file: "hello" as "/usr/bin/hello" It may, nevertheless, be cumbersome to remember (and type) the specific vacation spot directory in which the program (or other file) should be installed. A call to Default is often used to include the directory into the list of default targets, removing the need to type it, but sometimes You do not want to install on every build.
Program('f2.c') Notice that the Progress function does not arrange to get a newline to generally be printed automatically at the conclusion of the string (as does the Python print function), and we have to specify the n that we want printed at the end of the configured string.
, an SCons function that you use to instruct SCons about the "what" of your build. That's it. Now run the scons command to build the program. On a POSIX-compliant system like Linux or UNIX, you'll see something like: % scons
Is there a better technique to handle these rapid changes? Or would you have a recommendation to improve this code? Thank you!
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The strings that you may pass towards the GetOption and SetOption functions normally correspond into the first long-form option name (that is, name beginning with two hyphen characters: --), after replacing any remaining hyphen characters with underscores. SetOption works for options added with AddOption, but only if they ended up created with settable=True