templater: pass (context, mapping) down to unwraphybrid()
See the subsequent patches for why.
I initially thought it would be wrong to pass a mapping to flatten() and
stringify() since these functions may be applied to a tree of generators,
where each node should be bound to the mapping when it was evaluated. But,
actually that isn't a problem. If an intermediate node has to override a
mapping dict, it can do on unwraphybrid() and yield "unwrapped" generator
of byte strings:
"{f(g(v))}" # literal template example.
^^^^ # g() want to override a mapping, so it returns a wrapped
# object 'G{V}' with partial mapping 'lm' attached.
^^^^^^^ # f() stringifies 'G{V}', starting from a mapping 'm'.
# when unwrapping 'G{}', it updates 'm' with 'lm', and
# passes it to 'V'.
This structure is important for the formatter (and the hgweb) to build a
static template keyword, which can't access a mapping dict until evaluation
phase.
$ hg debugextensions
$ debugpath=`pwd`/extwithoutinfos.py
$ cat > extwithoutinfos.py <<EOF
> EOF
$ cat > extwithinfos.py <<EOF
> testedwith = b'3.0 3.1 3.2.1'
> buglink = b'https://example.org/bts'
> EOF
$ cat >> $HGRCPATH <<EOF
> [extensions]
> histedit=
> patchbomb=
> rebase=
> mq=
> ext1 = $debugpath
> ext2 = `pwd`/extwithinfos.py
> EOF
$ hg debugextensions
ext1 (untested!)
ext2 (3.2.1!)
histedit
mq
patchbomb
rebase
$ hg debugextensions -v
ext1
location: */extwithoutinfos.py* (glob)
bundled: no
ext2
location: */extwithinfos.py* (glob)
bundled: no
tested with: 3.0 3.1 3.2.1
bug reporting: https://example.org/bts
histedit
location: */hgext/histedit.py* (glob)
bundled: yes
mq
location: */hgext/mq.py* (glob)
bundled: yes
patchbomb
location: */hgext/patchbomb.py* (glob)
bundled: yes
rebase
location: */hgext/rebase.py* (glob)
bundled: yes
$ hg debugextensions -Tjson | sed 's|\\\\|/|g'
[
{
"buglink": "",
"bundled": false,
"name": "ext1",
"source": "*/extwithoutinfos.py*", (glob)
"testedwith": []
},
{
"buglink": "https://example.org/bts",
"bundled": false,
"name": "ext2",
"source": "*/extwithinfos.py*", (glob)
"testedwith": ["3.0", "3.1", "3.2.1"]
},
{
"buglink": "",
"bundled": true,
"name": "histedit",
"source": "*/hgext/histedit.py*", (glob)
"testedwith": []
},
{
"buglink": "",
"bundled": true,
"name": "mq",
"source": "*/hgext/mq.py*", (glob)
"testedwith": []
},
{
"buglink": "",
"bundled": true,
"name": "patchbomb",
"source": "*/hgext/patchbomb.py*", (glob)
"testedwith": []
},
{
"buglink": "",
"bundled": true,
"name": "rebase",
"source": "*/hgext/rebase.py*", (glob)
"testedwith": []
}
]
$ hg debugextensions -T '{ifcontains("3.1", testedwith, "{name}\n")}'
ext2
$ hg debugextensions \
> -T '{ifcontains("3.2", testedwith, "no substring match: {name}\n")}'