Redmine

When an image is pasted from the clipboard into a wiki text area, Redmine generates a filename such as the following:

clipboard-202610191803-bm9uy.png

The timestamp has a resolution of one minute only, and it is followed by five random characters. When a user pastes several screenshots one after another within the same minute, for example to describe the steps to reproduce a problem, their order cannot be determined from their filenames. After the attachments are downloaded, they cannot be sorted in the order in which they were pasted. Sorting by modification time does not help either, because downloaded files usually have the download time as their modification time.

This patch adds seconds to the timestamp:

clipboard-20261019180359-bm9uy.png

Since a person rarely pastes images more than once a second, a resolution of one second is sufficient to keep manually pasted images in paste order.

Notes:

• Since the timestamp now includes seconds, I considered reducing the random part to three characters to keep the filename length unchanged. However, automated tools can paste dozens of images within a single second. With only three characters (46,656 combinations), the probability of a name collision would then reach a few percent, which is too high to ignore. The random part therefore keeps five characters.
• The regular expression that detects pasted images in getInlineAttachmentMarkup (used to set the display width of the image) is updated to match the new format.