mq: create patch file after commit to import diff of ".hgsubstate" at qrefresh Even though the committed revision contains diff of ".hgsubstate", the patch file created by qrefresh doesn't contain it, because: - ".hgsubstate" is not listed up as one of target files of the patch for reasons below, so diff of ".hgsubstate" is not imported into patch file - status of ".hgsubstate" in working directory is usually "clean" - ".hgsubstate" is not specified explicitly by users - the patch file is created before commit processing which updates or creates ".hgsubstate" automatically, so there is no diff for it at that time This patch resolves this problem by: - putting ".hgsubstate" into target list of the patch, if needed: this allows "patch.diff()" to import diff of ".hgsubstate" into patch file. - creating the patch file after commit processing: this updates ".hgsubstate" before "patch.diff()" invocation. For the former fixing, this patch introduces "putsubstate2changes()" to share same implementation with qnew. This is invoked only once per qnew/qrefresh at most, so there is less performance impact. This patch also omits "match" argument for "patch.diff()" invocation, because "patch.diff()" ignores "match" if "changes" is specified.

mq: add ".hgsubstate" to patch target list only if it is not listed up yet If ".hgsubstate" is already listed up as one of commit targets, qnew put diff of ".hgsubstate" twice into the patch file stored under ".hg/patches". It causes rejections at applying such patches. Other than the case like in added test script, this can also occur when qnew is executed just after rolling back the committing updated ".hgsubstate". This patch checks whether ".hgsubstate" is already listed up as one of commit targets, and put it into the appropriate list only if it is not listed up yet.

backout e7167007c083 This may have allowed unbounded I/O sizes with the current chunk retrieval code.