[Bug 5479] New: `hg diff --stat` gets confused by lines that start with "-- " or "++ "
mercurial-bugs at mercurial-scm.org
mercurial-bugs at mercurial-scm.org
Mon Feb 6 02:06:48 UTC 2017
https://bz.mercurial-scm.org/show_bug.cgi?id=5479
Bug ID: 5479
Summary: `hg diff --stat` gets confused by lines that start
with "-- " or "++ "
Product: Mercurial
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: bug
Priority: wish
Component: Mercurial
Assignee: bugzilla at mercurial-scm.org
Reporter: hg at pewpew.net
CC: mercurial-devel at selenic.com
Created attachment 1947
--> https://bz.mercurial-scm.org/attachment.cgi?id=1947&action=edit
test that shows the issue (as patch from test-diffstat.t)
Note: possible duplicate of 1123? That claims that diffstat was an external
tool, though, so while the issue might be similar, I don't think it's a strict
duplicate.
If a line in a file starts with "-- " and is changed, `hg diff --stat` doesn't
count it as a deletion. Similarly, if the new version of the line starts with
"++ ", it is not counted as an addition. This can lead to diffstat claiming 0
diffs even if there are some:
$ hg diff --root .
diff -r 32e517bb8958 file
--- a/file Thu Jan 01 00:00:00 1970 +0000
+++ b/file * (glob)
@@ -1,3 +1,3 @@
line 1
--- line 2, with dashes
+++ line 2, switched dashes to plusses
line 3
This is wrong: does not count either, because both lines look like file
headers.
$ hg diff --root . --stat
file | 0
1 files changed, 0 insertions(+), 0 deletions(-)
--
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