Bash-wrapper-functions: Difference between revisions

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* Getting the Java binary based on a combination of command line options, the content of the JAVA_HOME environment variable, and the "java" binary available in path.
* Getting the Java binary based on a combination of command line options, the content of the JAVA_HOME environment variable, and the "java" binary available in path.
* [[Nova_Ordis_Utilities_Version_Metadata_Handling#.22Light.22_Version_Reporting|"Light" version reporting functionality]], which relies on the presence of the lib/VERSION file.
* [[Nova_Ordis_Utilities_Version_Metadata_Handling#.22Light.22_Version_Reporting|"Light" version reporting functionality]], which relies on the presence of the lib/VERSION file.
 
* Command line argument pre-processing:
Command line argument handling:
** Single-quote enclosed arguments are not broken down but passed as such to the lower layer.
* Everything that is enclosed in double-quotes is passed as such to the java runtime as one argument, even if it includes spaces. <font color=red>The current implementation is faulty, multiple spaces are converted to just one space, fix.</font>
* Escaped quotes are passed to the java runtime.


=GitHub=
=GitHub=


{{External|https://github.com/NovaOrdis/bash-wrapper-functions}}
{{External|https://github.com/NovaOrdis/bash-wrapper-functions}}
=Procedure to Integrate into  New Project=
1. Copy "application-shell-wrapper-template" under the bin directory of the target project and change its name to match the project's application name.
2. Copy "bash-wrapper-functions" in the same directory.
3. Adapt "application-shell-wrapper-template" for the project:
3.1 Adjust MAIN_CLASS
MAIN_CLASS=...
4. Update the assembly file to include the top-level wrapper and "bash-wrapper-functions" in the distributable artifact.


=Usage=
=Usage=

Latest revision as of 15:49, 28 October 2017

Internal

Overview

A project that offers common bash wrapper functionality in form of a single function file to be sourced in the main wrapper, and a main wrapper template ("application-shell-wrapper-template")

Functionality:

  • Basic error/warn/debug functionality.
  • Building a classpath based on the JAR content of a repository.
  • Getting the Java binary based on a combination of command line options, the content of the JAVA_HOME environment variable, and the "java" binary available in path.
  • "Light" version reporting functionality, which relies on the presence of the lib/VERSION file.
  • Command line argument pre-processing:
    • Single-quote enclosed arguments are not broken down but passed as such to the lower layer.

GitHub

https://github.com/NovaOrdis/bash-wrapper-functions

Procedure to Integrate into New Project

1. Copy "application-shell-wrapper-template" under the bin directory of the target project and change its name to match the project's application name.

2. Copy "bash-wrapper-functions" in the same directory.

3. Adapt "application-shell-wrapper-template" for the project:

3.1 Adjust MAIN_CLASS

MAIN_CLASS=...

4. Update the assembly file to include the top-level wrapper and "bash-wrapper-functions" in the distributable artifact.

Usage

Copy bash-wrapper-functions in the bin directory and refer it as following:

 [ -f $(dirname $0)/bash-wrapper-functions ] && .  $(dirname $0)/bash-wrapper-functions || { echo "$(dirname $0)/bash-wrapper-functions not found" 1>&2; exit 1; }