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readline: Use one history item for reentered line

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If the command entered is exactly the same as the last history item,
don't dupe it in the history
This commit is contained in:
Vladimir Beloborodov 2012-06-13 21:37:31 +04:00 committed by Ben Noordhuis
parent 2ba96451a9
commit 3ea0397a1a
1 changed files with 7 additions and 5 deletions
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12
lib/readline.js
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@ -188,12 +188,14 @@ Interface.prototype._onLine = function(line) {
Interface.prototype._addHistory = function() {
if (this.line.length === 0) return '';
this.history.unshift(this.line);
if (this.history.length === 0 || this.history[0] !== this.line) {
this.history.unshift(this.line);
// Only store so many
if (this.history.length > kHistorySize) this.history.pop();
}
this.historyIndex = -1;
// Only store so many
if (this.history.length > kHistorySize) this.history.pop();
return this.history[0];
};