Plugin should support increments even if version ends with alpha chars

[VenomVendor]

Is your feature request related to a problem? Please describe.
According to Semantic Versioning 2.0.0 the below version patterns are valid.

• 3.0.0-rc1
• 3.0.0-rc.1
• 3.0.0-beta1
• 3.0.1-beta

The above versioning should be supported.

Expected Results

Current	After Execution
3.0.0	3.0.1
3.0.0-rc1	3.0.0-rc2
3.0.0-rc.1	3.0.0-rc.2
3.0.0-beta1	3.0.0-beta2
3.0.0-beta	3.0.1-beta

[FranRiadigos]

Hi @VenomVendor, thanks for your feedback!

It's a good idea and I think projects will benefit from this suffix.

I started talking about it with @xvelx and I suggested to save the suffix as part of the created version tag as well.
We can add an extra option to the versioning { } block like tagSuffix where a developer can put a static string or a custom function that generates the expected value.

What do you think?

[VenomVendor]

We should try to resolve without additional input from users.

Describe the solution you'd like

• Split existing version by .
• Incase of major/minor update, we can directly increment.
• If patch, then split by digit \D+
  • reverse loop
  • increment first digit
  • break

Python Code

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import re

# Current & Expected
version_map = {
    '0.0.29': '0.0.30',
    '2.0.0-rc.1': '2.0.0-rc.2',
    '0.0.22beta': '0.0.23beta',
    '0.0.22rc-1': '0.0.22rc-2',
    '0.0.22d1201': '0.0.22d1202'
}


def get_next_version(in_version):
    global remaining
    semantic = re.split("\.", in_version, 2)
    major = semantic[0]
    minor = semantic[1]

    increment_patch = True  # hardcoded runtime value.

    if len(semantic) > 2 and increment_patch:
        remaining = re.split('(\D+)', semantic[2])[::-1]

    for i, val in enumerate(remaining):
        if val.isdigit():
            remaining[i] = int(val) + 1
            break

    remaining = remaining[::-1]
    incremented_patch = ''.join(map(str, remaining))

    return "{}.{}.{}".format(major, minor, incremented_patch)


for current_version, next_version in version_map.items():
    actual_next_version = get_next_version(current_version)
    assert actual_next_version == next_version, \
        "Expected `{}`, but actual `{}`".format(next_version, actual_next_version)

print "All Tests passed."