Hello,
I'm experiencing strange behavior with :/<text> references, which seems
to be inconsistent with the explanation in the docs on two counts.
First, sometimes the matched commit is not the youngest. Second, some
commits cannot be found at all, even if they are reachable from HEAD.
Here is a script to reproduce the behavior (Git built from current pu):
#!/bin/sh
export GIT_CONFIG_NOSYSTEM=1
export GIT_ATTR_NOSYSTEM=1
cd "$(mktemp -d --suffix .gitrepro)"
git --version
git init
git commit -q --allow-empty -m initial
git commit -q --allow-empty -m foo
git checkout -q -b early-branch
git commit -q --allow-empty -m foobar
git checkout -q --detach
git commit -q --allow-empty -m foobarbaz
echo
echo "The following should all print 'foobarbaz':"
git show --format=%s ':/foo' --
git show --format=%s ':/foobar' --
git show --format=%s ':/foobarbaz' --
echo
echo "With an explicit branch:"
git branch late-branch
git show --format=%s ':/foo' --
git show --format=%s ':/foobar' --
git show --format=%s ':/foobarbaz' --
Here is the output on my machine:
git version 2.18.0.516.g6fb7f6652
Initialized empty Git repository in /tmp/tmp.WeCD0QZPIf.gitrepro/.git/
The following should all print 'foobarbaz':
foo
foobar
fatal: bad revision ':/foobarbaz'
With an explicit branch:
foo
foobarbaz
foobarbaz
First, the commit with message "foobar" clearly matches the regular
expression /foo/ as well as /foobar/, but ":/foo" resolves to an older
commit. However, Documentation/revisions.txt indicates that a :/<text>
reference should resolve to the _youngest_ matching commit.
Second, the commit with message "foobarbaz" is reachable from HEAD, and
yet the regular expression /foobarbaz/ fails to match it. The same
documentation indicates that :/<text> references find commits reachable
from any ref, and the glossary entry for "ref" states that HEAD is a
"special-purpose ref" even though it does not begin with "refs/".
It looks to me like references reachable from `master` are always picked
over other references, and that references reachable only from HEAD are
not matched at all.
Is the observed behavior intentional? If so, what am I misunderstanding?
Thanks!
WC
(for searchability: colon slash text references)
