topic: provide more information when behind count cannot be computed
The behind count has been confusing for various user and the associated error
message is even worth. We try to clarify it to see if that helps.
$ cat >> $HGRCPATH <<EOF
> [extensions]
> EOF
$ echo "evolve=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/" >> $HGRCPATH
$ echo "drophack=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/hack/drophack.py" >> $HGRCPATH
$ mkcommit() {
> echo "$1" > "$1"
> hg add "$1"
> hg ci -m "add $1"
> }
$ summary() {
> echo ============ graph ==============
> hg log -G
> echo ============ hidden =============
> hg log --hidden -G
> echo ============ obsmark ============
> hg debugobsolete
> }
$ hg init repo
$ cd repo
$ mkcommit base
drop a single changeset without any rewrite
================================================
$ mkcommit simple-single
$ summary
============ graph ==============
@ changeset: 1:d4e7845543ff
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: add simple-single
|
o changeset: 0:b4952fcf48cf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add base
============ hidden =============
@ changeset: 1:d4e7845543ff
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: add simple-single
|
o changeset: 0:b4952fcf48cf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add base
============ obsmark ============
$ hg drop .
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
working directory now at b4952fcf48cf
search obsmarker: wall * comb * user * sys * (glob)
0 obsmarkers found
search nodes: wall * comb * user * sys * (glob)
1 nodes found
saved backup bundle to $TESTTMP/repo/.hg/strip-backup/d4e7845543ff-8ad8efe0-drophack.hg (glob)
strip nodes: wall * comb * user * sys * (glob)
$ summary
============ graph ==============
@ changeset: 0:b4952fcf48cf
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add base
============ hidden =============
@ changeset: 0:b4952fcf48cf
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add base
============ obsmark ============
Try to drop a changeset with children
================================================
$ mkcommit parent
$ mkcommit child
$ summary
============ graph ==============
@ changeset: 2:34b6c051bf1f
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: add child
|
o changeset: 1:19509a42b0d0
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: add parent
|
o changeset: 0:b4952fcf48cf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add base
============ hidden =============
@ changeset: 2:34b6c051bf1f
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: add child
|
o changeset: 1:19509a42b0d0
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: add parent
|
o changeset: 0:b4952fcf48cf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add base
============ obsmark ============
$ hg drop 1
cannot drop revision with children (no-eol)
[1]
$ summary
============ graph ==============
@ changeset: 2:34b6c051bf1f
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: add child
|
o changeset: 1:19509a42b0d0
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: add parent
|
o changeset: 0:b4952fcf48cf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add base
============ hidden =============
@ changeset: 2:34b6c051bf1f
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: add child
|
o changeset: 1:19509a42b0d0
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: add parent
|
o changeset: 0:b4952fcf48cf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add base
============ obsmark ============
Try to drop a public changeset
================================================
$ hg phase --public 2
$ hg drop 2
cannot drop public revision (no-eol)
[1]
Try to drop a changeset with rewrite
================================================
$ hg phase --force --draft 2
$ echo babar >> child
$ hg commit --amend
$ summary
============ graph ==============
@ changeset: 3:a2c06c884bfe
| tag: tip
| parent: 1:19509a42b0d0
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: add child
|
o changeset: 1:19509a42b0d0
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: add parent
|
o changeset: 0:b4952fcf48cf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add base
============ hidden =============
@ changeset: 3:a2c06c884bfe
| tag: tip
| parent: 1:19509a42b0d0
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: add child
|
| x changeset: 2:34b6c051bf1f
|/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| obsolete: amended as a2c06c884bfe
| summary: add child
|
o changeset: 1:19509a42b0d0
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: add parent
|
o changeset: 0:b4952fcf48cf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add base
============ obsmark ============
34b6c051bf1f78db6aef400776de5cb964470207 a2c06c884bfe53d3840026248bd8a7eafa152df8 0 (*) {'ef1': '*', 'user': 'test'} (glob)
$ hg drop .
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
working directory now at 19509a42b0d0
search obsmarker: wall * comb * user * sys * (glob)
1 obsmarkers found
search nodes: wall * comb * user * sys * (glob)
2 nodes found
strip obsmarker: wall * comb * user * sys * (glob)
saved backup bundle to $TESTTMP/repo/.hg/strip-backup/*-drophack.hg (glob)
strip nodes: wall * comb * user * sys * (glob)
$ summary
============ graph ==============
@ changeset: 1:19509a42b0d0
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: add parent
|
o changeset: 0:b4952fcf48cf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add base
============ hidden =============
@ changeset: 1:19509a42b0d0
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: add parent
|
o changeset: 0:b4952fcf48cf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add base
============ obsmark ============