Git - experimental git blame editor decoration (#234209)

* Initial implementation

* Add setting, and cache blame information more aggressively

extensions/git/src/util.ts

@@ -3,7 +3,7 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-import { Event, Disposable, EventEmitter, SourceControlHistoryItemRef } from 'vscode';
+import { Event, Disposable, EventEmitter, SourceControlHistoryItemRef, l10n } from 'vscode';
 import { dirname, sep, relative } from 'path';
 import { Readable } from 'stream';
 import { promises as fs, createReadStream } from 'fs';
@@ -568,3 +568,197 @@ export function deltaHistoryItemRefs(before: SourceControlHistoryItemRef[], afte
 
 	return { added, modified, removed };
 }
+
+const minute = 60;
+const hour = minute * 60;
+const day = hour * 24;
+const week = day * 7;
+const month = day * 30;
+const year = day * 365;
+
+/**
+ * Create a l10n.td difference of the time between now and the specified date.
+ * @param date The date to generate the difference from.
+ * @param appendAgoLabel Whether to append the " ago" to the end.
+ * @param useFullTimeWords Whether to use full words (eg. seconds) instead of
+ * shortened (eg. secs).
+ * @param disallowNow Whether to disallow the string "now" when the difference
+ * is less than 30 seconds.
+ */
+export function fromNow(date: number | Date, appendAgoLabel?: boolean, useFullTimeWords?: boolean, disallowNow?: boolean): string {
+	if (typeof date !== 'number') {
+		date = date.getTime();
+	}
+
+	const seconds = Math.round((new Date().getTime() - date) / 1000);
+	if (seconds < -30) {
+		return l10n.t('in {0}', fromNow(new Date().getTime() + seconds * 1000, false));
+	}
+
+	if (!disallowNow && seconds < 30) {
+		return l10n.t('now');
+	}
+
+	let value: number;
+	if (seconds < minute) {
+		value = seconds;
+
+		if (appendAgoLabel) {
+			if (value === 1) {
+				return useFullTimeWords
+					? l10n.t('{0} second ago', value)
+					: l10n.t('{0} sec ago', value);
+			} else {
+				return useFullTimeWords
+					? l10n.t('{0} seconds ago', value)
+					: l10n.t('{0} secs ago', value);
+			}
+		} else {
+			if (value === 1) {
+				return useFullTimeWords
+					? l10n.t('{0} second', value)
+					: l10n.t('{0} sec', value);
+			} else {
+				return useFullTimeWords
+					? l10n.t('{0} seconds', value)
+					: l10n.t('{0} secs', value);
+			}
+		}
+	}
+
+	if (seconds < hour) {
+		value = Math.floor(seconds / minute);
+		if (appendAgoLabel) {
+			if (value === 1) {
+				return useFullTimeWords
+					? l10n.t('{0} minute ago', value)
+					: l10n.t('{0} min ago', value);
+			} else {
+				return useFullTimeWords
+					? l10n.t('{0} minutes ago', value)
+					: l10n.t('{0} mins ago', value);
+			}
+		} else {
+			if (value === 1) {
+				return useFullTimeWords
+					? l10n.t('{0} minute', value)
+					: l10n.t('{0} min', value);
+			} else {
+				return useFullTimeWords
+					? l10n.t('{0} minutes', value)
+					: l10n.t('{0} mins', value);
+			}
+		}
+	}
+
+	if (seconds < day) {
+		value = Math.floor(seconds / hour);
+		if (appendAgoLabel) {
+			if (value === 1) {
+				return useFullTimeWords
+					? l10n.t('{0} hour ago', value)
+					: l10n.t('{0} hr ago', value);
+			} else {
+				return useFullTimeWords
+					? l10n.t('{0} hours ago', value)
+					: l10n.t('{0} hrs ago', value);
+			}
+		} else {
+			if (value === 1) {
+				return useFullTimeWords
+					? l10n.t('{0} hour', value)
+					: l10n.t('{0} hr', value);
+			} else {
+				return useFullTimeWords
+					? l10n.t('{0} hours', value)
+					: l10n.t('{0} hrs', value);
+			}
+		}
+	}
+
+	if (seconds < week) {
+		value = Math.floor(seconds / day);
+		if (appendAgoLabel) {
+			return value === 1
+				? l10n.t('{0} day ago', value)
+				: l10n.t('{0} days ago', value);
+		} else {
+			return value === 1
+				? l10n.t('{0} day', value)
+				: l10n.t('{0} days', value);
+		}
+	}
+
+	if (seconds < month) {
+		value = Math.floor(seconds / week);
+		if (appendAgoLabel) {
+			if (value === 1) {
+				return useFullTimeWords
+					? l10n.t('{0} week ago', value)
+					: l10n.t('{0} wk ago', value);
+			} else {
+				return useFullTimeWords
+					? l10n.t('{0} weeks ago', value)
+					: l10n.t('{0} wks ago', value);
+			}
+		} else {
+			if (value === 1) {
+				return useFullTimeWords
+					? l10n.t('{0} week', value)
+					: l10n.t('{0} wk', value);
+			} else {
+				return useFullTimeWords
+					? l10n.t('{0} weeks', value)
+					: l10n.t('{0} wks', value);
+			}
+		}
+	}
+
+	if (seconds < year) {
+		value = Math.floor(seconds / month);
+		if (appendAgoLabel) {
+			if (value === 1) {
+				return useFullTimeWords
+					? l10n.t('{0} month ago', value)
+					: l10n.t('{0} mo ago', value);
+			} else {
+				return useFullTimeWords
+					? l10n.t('{0} months ago', value)
+					: l10n.t('{0} mos ago', value);
+			}
+		} else {
+			if (value === 1) {
+				return useFullTimeWords
+					? l10n.t('{0} month', value)
+					: l10n.t('{0} mo', value);
+			} else {
+				return useFullTimeWords
+					? l10n.t('{0} months', value)
+					: l10n.t('{0} mos', value);
+			}
+		}
+	}
+
+	value = Math.floor(seconds / year);
+	if (appendAgoLabel) {
+		if (value === 1) {
+			return useFullTimeWords
+				? l10n.t('{0} year ago', value)
+				: l10n.t('{0} yr ago', value);
+		} else {
+			return useFullTimeWords
+				? l10n.t('{0} years ago', value)
+				: l10n.t('{0} yrs ago', value);
+		}
+	} else {
+		if (value === 1) {
+			return useFullTimeWords
+				? l10n.t('{0} year', value)
+				: l10n.t('{0} yr', value);
+		} else {
+			return useFullTimeWords
+				? l10n.t('{0} years', value)
+				: l10n.t('{0} yrs', value);
+		}
+	}
+}