RFR: 1925: When archiving a comment, mlbridgeBot would strip everything after the first command

[Zhao Song]

On Thu, 1 Jun 2023 22:22:25 GMT, Zhao Song <zsong at openjdk.org> wrote:

> A user reported that there is no email generated for this comment. 
> https://github.com/openjdk/jdk/pull/14114#issuecomment-1562126987 
> 
> It is caused by the initial `/csr needed` command. The root cause is that in `ArchiveWorkItem#ignoreComment`, any command would be treated as a multiline command. 
> 
> The logic about filtering out commands from a comment differs between `ArchiveWorkItem#ignoreComment` and `CommandExtractor#extractCommands`.
> 
> In this patch, I make the logic consistent in this two methods.
> 
> 1. Any line starts with '/' followed by lowercase characters will be recognized as a command line. The command line will be stripped. 
> 2. Check whether this command is a multiline command. If so, the following lines will be considered as arguments of the command and the argument lines will be stripped until the bot found another command line.

bots/common/src/main/java/org/openjdk/skara/bots/common/CommandNameEnum.java line 62:

> 60:         return isMultiLine;
> 61:     }
> 62: 

Introduced a field called `isMultiLine` here because `CommandHandler` is coupled in PR bot and it is very difficult to extract it to the bots::common package.

bots/mlbridge/src/main/java/org/openjdk/skara/bots/mlbridge/ArchiveWorkItem.java line 143:

> 141:     }
> 142: 
> 143:     private boolean ignoreComment(HostUser author, String body, ZonedDateTime createdTime, ZonedDateTime lastDraftTime, boolean isComment) {

Introduced argument `isComment` to this method because I think in any case, no review should be ignored. But according to the previous logic, if a review whose body only contains command, the review would be ignored.

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PR Review Comment: https://git.openjdk.org/skara/pull/1524#discussion_r1213742171
PR Review Comment: https://git.openjdk.org/skara/pull/1524#discussion_r1213739659