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jentry

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A simple tools to get the entries of a java projects, based on javalang library.

Installation

You can simply install it with pip command line from the official PyPI site.

pip install jentry

For more information about installation, you can refer to the installation guide.

Quick Start

Use with CLI

You can directly use jentry CLI to get the entry of a java project. Such as the command below

jentry demo

The output should be like as shown follow (in this project, we have 2 different entries)

Main
homework.Main

Only Use One Entry

You can get exactly one entry with -F command

jentry -F demo

The output should be

Main

This command can be used when you are trying to run a compiled java project, like this

java -cp target:${CLASSPATH} $(jentry -F demo)

The entry it found will be applied into the java command line.

Pretty Print Entry

Actually, these entries can be printed with prettier ways, such as json and table.

jentry -f json demo

The json-formatted output.

[
    {
        "entrance": "Main",
        "package": null,
        "class": "Main",
        "file": "demo/2018_spring_16061104_10/src/Main.java"
    },
    {
        "entrance": "homework.Main",
        "package": "homework",
        "class": "Main",
        "file": "demo/oo_course_2019_17373331_homework_2/src/homework/Main.java"
    }
]

And if the -f option is assigned to table

jentry -f table demo

A table with all the entries will be placed together.

+---------------+----------+-------+----------------------------------------------------------------+
|     Entry     | Package  | Class |                            Filename                            |
+---------------+----------+-------+----------------------------------------------------------------+
|      Main     |  <none>  |  Main |           demo/2018_spring_16061104_10/src/Main.java           |
| homework.Main | homework |  Main | demo/oo_course_2019_17373331_homework_2/src/homework/Main.java |
+---------------+----------+-------+----------------------------------------------------------------+

Others

Other features can be found in the help information, which can be displayed with -h option.

jentry -h
Usage: jentry [OPTIONS] [SOURCES]...

  Jentry - find the entry of your java project.

Options:
  -v, --version                   Show package's version information.
  -f, --format [table|json|entry]
                                  The format to display the entries  [default:
                                  entry]
  -s, --sorted_by [file|package|class|entry]
                                  The order to sorted by.  [default: file]
  -r, --reverse                   Reverse the sorted result, only applied when
                                  -s is used.  [default: False]
  -F, --first_only                Only show the first entry.  [default: False]
  -h, --help                      Show this message and exit.

Use with Python

jentry can be imported into python

from jentry.entry.script import load_entries_from_project

if __name__ == '__main__':
    for entry in load_entries_from_project('demo'):
        print(repr(entry))

The output should be

<JavaEntry class: Main, filename: 'demo/2018_spring_16061104_10/src/Main.java'>
<JavaEntry class: homework.Main, filename: 'demo/oo_course_2019_17373331_homework_2/src/homework/Main.java'>

License

jentry released under the Apache 2.0 license.