feat(chore): add option to strip additional lines in summary

packages/core/src/countBallotsFromGit.ts

@@ -233,7 +233,7 @@ export default async function countFromGit({
 
   await Promise.all(decryptPromises);
 
-  const result = vote.count({ discardedCommits });
+  const result = vote.count({ discardedCommits, keepOnlyFirstLineInSummary: vote.voteFileData.keepOnlyFirstLineInSummary });
 
   if (commitJsonSummary != null) {
     if (lastCommitRef !== "HEAD") {

packages/core/src/parser.ts

@@ -16,6 +16,7 @@ export interface VoteFileFormat {
   checksum?: string;
 
   canShuffleCandidates?: boolean;
+  keepOnlyFirstLineInSummary?: boolean;
   requireSignedBallots?: boolean;
 }
 function instanceOfVoteFile(object): object is VoteFileFormat {

packages/core/src/summary/condorcetSummary.ts

@@ -73,7 +73,10 @@ interface BallotSummarize {
   minCandidates?: VoteCandidate[];
   orderedCandidates?: VoteCandidate[][];
 }
-export function getSummarizedBallot(ballot: Ballot): BallotSummarize {
+export function getSummarizedBallot(
+  ballot: Ballot,
+  keepOnlyFirstLineInSummary?: boolean
+): BallotSummarize {
   let maxNote = Number.MIN_SAFE_INTEGER;
   let minNote = Number.MAX_SAFE_INTEGER;
   for (const [, score] of ballot.preferences) {
@@ -91,7 +94,8 @@ export function getSummarizedBallot(ballot: Ballot): BallotSummarize {
       for (const [candidate, score] of ballot.preferences) {
         const candidatesForThisScore = orderedPreferences.get(score);
         const markdownCandidate = `**${cleanMarkdown(
-          candidate.replace(/\.$/, "")
+          candidate,
+          keepOnlyFirstLineInSummary
         )}**`;
         if (candidatesForThisScore == null) {
           orderedPreferences.set(score, [markdownCandidate]);
@@ -106,7 +110,7 @@ export function getSummarizedBallot(ballot: Ballot): BallotSummarize {
       };
     }
     const group = score === minNote ? minCandidates : maxCandidates;
-    group.push(`**${cleanMarkdown(candidate).replace(/\.$/, "")}**`);
+    group.push(`**${cleanMarkdown(candidate, keepOnlyFirstLineInSummary)}**`);
   }
   return { minCandidates, maxCandidates };
 }
@@ -116,7 +120,7 @@ export default class CondorcetElectionSummary extends ElectionSummary {
 
   summarizeBallot(ballot: Ballot) {
     return summarizeCondorcetBallotForElectionSummary(
-      getSummarizedBallot(ballot),
+      getSummarizedBallot(ballot, this.keepOnlyFirstLineInSummary),
       4
     );
   }

packages/core/src/summary/electionSummary.ts

@@ -2,11 +2,15 @@ import type { Actor, Ballot, VoteCandidate, VoteCommit } from "../vote";
 import type { CandidateScores } from "../votingMethods/VotingMethodImplementation";
 import cleanMarkdown from "../utils/cleanMarkdown.js";
 
-function displayWinners(winners: VoteCandidate[]) {
+function displayWinners(winners: VoteCandidate[], keepOnlyFirstLineInSummary?: boolean) {
   if (winners.length === 0) return "None.";
-  if (winners.length === 1) return cleanMarkdown(winners[0]);
+  if (winners.length === 1) return cleanMarkdown(winners[0], keepOnlyFirstLineInSummary);
   const delimiter = "\n - ";
-  return delimiter + winners.map(cleanMarkdown).join(delimiter);
+  return delimiter + winners.map(
+    keepOnlyFirstLineInSummary ?
+      (l) => cleanMarkdown(l, keepOnlyFirstLineInSummary) :
+      (l) => cleanMarkdown(l).split('\n').join('\n   ')
+  ).join(delimiter);
 }
 
 export interface DiscardedCommit {
@@ -23,6 +27,7 @@ export interface ElectionSummaryOptions {
   ballots: Ballot[];
   privateKey: string;
   discardedCommits?: DiscardedCommit[];
+  keepOnlyFirstLineInSummary?: boolean;
 }
 export default abstract class ElectionSummary {
   subject: string;
@@ -35,6 +40,7 @@ export default abstract class ElectionSummary {
   privateKey: string;
   participants: Actor[];
   discardedCommits: DiscardedCommit[];
+  keepOnlyFirstLineInSummary: boolean;
 
   abstract scoreText: string;
 
@@ -48,6 +54,7 @@ export default abstract class ElectionSummary {
     ballots: unsortedBallots,
     privateKey,
     discardedCommits,
+    keepOnlyFirstLineInSummary,
   }: ElectionSummaryOptions) {
     this.subject = subject;
     this.startDate = startDate;
@@ -56,6 +63,7 @@ export default abstract class ElectionSummary {
     this.winners = winners;
     this.result = result;
     this.discardedCommits = discardedCommits;
+    this.keepOnlyFirstLineInSummary = !!keepOnlyFirstLineInSummary;
 
     this.sortedBallots = unsortedBallots
       .slice()
@@ -79,7 +87,8 @@ ${this.startDate ? `**Start date**: ${this.startDate}  \n` : ""}**End date**: ${
 ## Results
 
 **Winning candidate${this.winners.length === 1 ? "" : "s"}**: ${displayWinners(
-      this.winners
+      this.winners,
+      this.keepOnlyFirstLineInSummary
     )}
 
 ### Table of results
@@ -88,7 +97,7 @@ ${this.startDate ? `**Start date**: ${this.startDate}  \n` : ""}**End date**: ${
 | --------- | ------------------- |
 ${Array.from(this.result)
   .sort(([, scoreA], [, scoreB]) => scoreB - scoreA)
-  .map((result) => `| ${cleanMarkdown(result[0])} | ${result[1]} |`)
+  .map((result) => `| ${cleanMarkdown(result[0], this.keepOnlyFirstLineInSummary)} | ${result[1]} |`)
   .join("\n")}
 
 ## Voting data

packages/core/src/utils/cleanMarkdown.ts

@@ -3,7 +3,14 @@ function cleanUnsupportedMarkdown(txt: string): string {
   return txt.replace(/([_~*\\[\]<>`])/g, "\\$1");
 }
 
-export default function cleanMarkdown(txt: string): string {
+function reduceToFirstLine(candidate: string) {
+  const i = candidate.indexOf('\n')
+  return i === -1 ? candidate : candidate.slice(0, i - Number(candidate[i] === '.' || candidate === ':'));
+}
+export default function cleanMarkdown(txt: string, keepOnlyFirstLineInSummary?: boolean): string {
+  if (keepOnlyFirstLineInSummary) txt = reduceToFirstLine(txt);
+  else if (txt.endsWith('.') || txt.endsWith(':')) txt = txt.slice(0, -1);
+
   // Escape backticks for edge case scenarii (no code span support).
   if (txt.includes("``") || txt.includes("\\`")) {
     return cleanUnsupportedMarkdown(txt);