Update READMEs, templates, etc... from Pivotal to VMware

[simonbasle]

Mentions of Pivotal sponsorship in the codebase / documentation / READMEs / public facing tooling like github issue templates must now reflect the fact that that role has been taken over by VMware.

initial change (WITH START DATE MISTAKE):

• core: Polish copyright headers and other org changes reactor-core#2722 and [polish] Follow-up on #2722, copyright update in main reactor-core#2725
• pool: Update copyright headers in 0.1.x reactor-pool#141
• addons: [chores] Copyright switch Pivotal to VMware, polish headers reactor-addons#258
• netty ([polish] Harmonise license URL indentation in headers reactor-netty#1691, [polish] Harmonise license URL indentation in headers reactor-netty#1688, [polish] Update pom dev list reactor-netty#1689, [polish] Update date range in copyright header reactor-netty#1690, [polish] Update date range in copyright header reactor-netty#1687)
• rabbitmq: [chores] Copyright switch Pivotal to VMware, polish headers reactor-rabbitmq#161

these were not merged before the mistake was found, so they include correct start years:

• kafka: [chores] Copyright switch Pivotal to VMware, polish headers reactor-kafka#223 (updated to keep start dates: ✅) and [chores] Add or fix copyright header of files added in 1.3.x reactor-kafka#226
• kotlin: [chores] Copyright switch Pivotal to VMware, polish headers reactor-kotlin-extensions#27 (updated to keep start dates: ✅)

fixup PRs for the date range:

• core [chores] Revert copyright start year + polish reactor-core#2732
  • which includes [chores] Recompute copyright notice range from git history (#2732) reactor-core#2733
  • merge follow-up in main: [chores] Polish #2732 and fix start years of new files in 3.4.x reactor-core#2734
• pool: refine start years from spotless and manual analysis of git history: Refine spotless configuration and copyright ranges reactor-pool#144
• addons [chores] Copyright: Correct start year for all files reactor-addons#259
• netty ✅ previous PRs didn't change the start dates
• rabbitmq [chores] Copyright: Correct start year for all files reactor-rabbitmq#162

additional projects:

• bot: Add Spotless and copyright notice headers bot#19
• site: Introduce Spotless and update copyright notice headers projectreactor.io#68
• BOM: [chores] Copyright switch Pivotal to VMware, polish headers #702

[simonbasle]

for copyright headers, here is the guidance. each header step can be its own commit for a better reviewability:

Change the copyright to VMware and the year range

Start is maintained as is. It should ideally be the creation date of each piece of code (usually, the file). End is 2021 for now.

Replace Pivotal copyright:

Regular expression based regexp

• from (?:Copyright.* )([0-9]{4}(?:-(?:Present|[0-9]{4}))?) Pivotal.*
• to Copyright (c) $1 VMware Inc. or its affiliates, All Rights Reserved.

This covers corner cases where the is/isn't a (c) behind the Copyright word, detects single year, year range and year range with -Present, cover corner cases where the Pivotal attribution has not been consistent. For instance it correctly rewords and reattributes the following:

 * Copyright (c) 2018 Pivotal something.
 * Copyright (cd) 2018-Present Pivotal something
 * Copyright 2018-2020 Pivotal something.

Keep start date, update end date

1. range case with end year
   • from (20[0-9]{2})-20[0-9]{2} VMware
   • to $1-2021 VMware
2. range case with -Present
   • from (20[0-9]{2})-Present VMware
   • to $1-2021 VMware
3. single year case (notice it excludes 2021 single case. also notice the space prevents matching of ranges)
   • from (2020|201[0-9]) VMware
   • to $1-2021 VMware

old method that wrongly rewrote the start year

1. search-and-replace on all files with regexp for headers that already mention VMware (end date only)
   • from ([0-9]+)-.* VMware Inc. or its affiliates, All Rights Reserved
   • to STARTYEAR-2021 VMware Inc. or its affiliates, All Rights Reserved
2. search-and-replace on all files with regexp for headers that still mention Pivotal (company + end date change)
   • from ([0-9]+)-.* Pivotal Software Inc, All Rights Reserved (eg. 2017-2019 or 2017-Present)
   • to STARTYEAR-2021 VMware Inc. or its affiliates, All Rights Reserved (eg. 2017-2021)

⚠️ Change STARTYEAR above with relevant start year of each project:

• Reactor-core was started in 2011, and arguably build files in reactor/reactor would be too
• Reactor-Addons: 2016
• Reactor-Pool: 2018
• Reactor-Netty: 2016
• Reactor-Kafka: 2016
• Reactor-Rabbitmq: 2017
• Reactor-Kotlin-Extensions: 2019
• Reactor (BOM): 2011

(optional) Harmonize URL indentation and trailing blank line in license header

Do a search-and-replace on all files with regexp
- ([ ]?[^ ])[ ]+https://www.apache.org (matching both # and * kind of comment blocks)
- $1   https://www.apache.org (harmonizing on 3 spaces: one for the comment block and 2 for indentation of the url, as in the ASF example)
- ⚠️ ensure there were no false positives: rollback some of the files that are obviously not reactor's (the LICENSE file at root, some Gradle files for instance, documentation files, ...)

• Check non-java files have a blank line after the license block
• Ensure java files have a blank line after the license block:
  • search for \*/\npackage
  • replace with */\n\npackage

Find and remove duplicated copyright headers

via terminal:

for file in ./**/*; do if [ "$(grep -s -c "Copyright" "${file}")" -gt 1 ]; then echo "${file}"; fi; done

Ensure remaining occurences of Pivotal are replaced, and that poms are up to date

Pom.xml organization should either be reactor or vmware, not Pivotal.

The developer list in pom should be updated:

• remove any entry that isn't relevant anymore (as in: would it be okay to contact this person today about the project?)
• update remaining entries that have a pivotal.io email

Check for corner case licenses

For instance:

• the original author

[simonbasle]

this has now been released in the August 2021 release (Dysprosium-SR22, 2020.0.10)