branchcache: skip entries that are topological heads in the on disk file
In the majority of cases, topological heads are also branch heads. We have
efficient way to get the topological heads and efficient way to retrieve
their branch information. So there is little value in putting them in the branch
cache file explicitly. On the contrary, writing them explicitly tend to create
very large cache file that are inefficient to read and update.
So the branch cache v3 format is no longer including them. This changeset focus
on the format aspect and have no focus on the performance aspect. We will cover
that later.
#require serve
#if no-outer-repo
no repo
$ hg id
abort: there is no Mercurial repository here (.hg not found)
[10]
#endif
create repo
$ hg init test
$ cd test
$ echo a > a
$ hg ci -Ama
adding a
basic id usage
$ hg id
cb9a9f314b8b tip
$ hg id --debug
cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b tip
$ hg id -q
cb9a9f314b8b
$ hg id -v
cb9a9f314b8b tip
with options
$ hg id -r.
cb9a9f314b8b tip
$ hg id -n
0
$ hg id -t
tip
$ hg id -b
default
$ hg id -i
cb9a9f314b8b
$ hg id -n -t -b -i
cb9a9f314b8b 0 default tip
$ hg id -Tjson
[
{
"bookmarks": [],
"branch": "default",
"dirty": "",
"id": "cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b",
"node": "ffffffffffffffffffffffffffffffffffffffff",
"parents": ["cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b"],
"tags": ["tip"]
}
]
test template keywords and functions which require changectx:
$ hg id -T '{rev} {node|shortest}\n'
2147483647 ffff
$ hg id -T '{parents % "{rev} {node|shortest} {desc}\n"}'
0 cb9a a
$ hg id -T '{parents}\n'
cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b
test nested template: '{tags}'/'{node}' constants shouldn't override the
default keywords, but '{id}' persists because there's no default keyword
for '{id}' (issue5612)
$ hg id -T '{tags}\n'
tip
$ hg id -T '{revset("null:.") % "{rev}:{node|short} {tags} {id|short}\n"}'
-1:000000000000 cb9a9f314b8b
0:cb9a9f314b8b tip cb9a9f314b8b
with modifications
$ echo b > a
$ hg id -n -t -b -i
cb9a9f314b8b+ 0+ default tip
$ hg id -Tjson
[
{
"bookmarks": [],
"branch": "default",
"dirty": "+",
"id": "cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b+",
"node": "ffffffffffffffffffffffffffffffffffffffff",
"parents": ["cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b"],
"tags": ["tip"]
}
]
other local repo
$ cd ..
$ hg -R test id
cb9a9f314b8b+ tip
#if no-outer-repo
$ hg id test
cb9a9f314b8b+ tip
#endif
with remote http repo
$ cd test
$ hg serve -p $HGPORT1 -d --pid-file=hg.pid
$ cat hg.pid >> $DAEMON_PIDS
$ hg id http://localhost:$HGPORT1/
cb9a9f314b8b
remote with rev number?
$ hg id -n http://localhost:$HGPORT1/
abort: can't query remote revision number, branch, or tags
[10]
remote with tags?
$ hg id -t http://localhost:$HGPORT1/
abort: can't query remote revision number, branch, or tags
[10]
remote with branch?
$ hg id -b http://localhost:$HGPORT1/
abort: can't query remote revision number, branch, or tags
[10]
test bookmark support
$ hg bookmark Y
$ hg bookmark Z
$ hg bookmarks
Y 0:cb9a9f314b8b
* Z 0:cb9a9f314b8b
$ hg id
cb9a9f314b8b+ tip Y/Z
$ hg id --bookmarks
Y Z
test remote identify with bookmarks
$ hg id http://localhost:$HGPORT1/
cb9a9f314b8b Y/Z
$ hg id --bookmarks http://localhost:$HGPORT1/
Y Z
$ hg id -r . http://localhost:$HGPORT1/
cb9a9f314b8b Y/Z
$ hg id --bookmarks -r . http://localhost:$HGPORT1/
Y Z
test invalid lookup
$ hg id -r noNoNO http://localhost:$HGPORT1/
abort: unknown revision 'noNoNO'
[255]
Make sure we do not obscure unknown requires file entries (issue2649)
$ echo fake >> .hg/requires
$ hg id
abort: repository requires features unknown to this Mercurial: fake
(see https://mercurial-scm.org/wiki/MissingRequirement for more information)
[255]
$ cd ..
#if no-outer-repo
$ hg id test
abort: repository requires features unknown to this Mercurial: fake
(see https://mercurial-scm.org/wiki/MissingRequirement for more information)
[255]
#endif