httppeer: properly gate debug usage behind debug flag check
The "dbg" local variable is only defined if the 'debugflag' is set to True.
However, it was used indiscriminately later in the function. We hide its usage
behind the 'debugflag' value to avoid raising a NameError.
$ cat > engine.py << EOF
>
> from mercurial import (
> pycompat,
> templater,
> templateutil,
> )
>
> class mytemplater(templater.engine):
> def _load(self, t):
> return self._loader(t)
>
> def process(self, t, map):
> tmpl = self._load(t)
> props = self._defaults.copy()
> props.update(map)
> for k, v in props.items():
> if b'{{%s}}' % k not in tmpl:
> continue
> if callable(v) and getattr(v, '_requires', None) is None:
> props = self._resources.copy()
> props.update(map)
> v = v(**pycompat.strkwargs(props))
> elif callable(v):
> v = v(self, props)
> v = templateutil.stringify(self, props, v)
> tmpl = tmpl.replace(b'{{%s}}' % k, v)
> yield tmpl
>
> templater.engines[b'my'] = mytemplater
> EOF
$ hg init test
$ echo '[extensions]' > test/.hg/hgrc
$ echo "engine = `pwd`/engine.py" >> test/.hg/hgrc
$ cd test
$ cat > mymap << EOF
> changeset = my:changeset.txt
> EOF
$ cat > changeset.txt << EOF
> {{rev}} {{node}} {{author}}
> EOF
$ hg ci -Ama
adding changeset.txt
adding mymap
$ hg log --style=./mymap
0 97e5f848f0936960273bbf75be6388cd0350a32b test
$ cat > changeset.txt << EOF
> {{p1rev}} {{p1node}} {{p2rev}} {{p2node}}
> EOF
$ hg ci -Ama
$ hg log --style=./mymap
0 97e5f848f0936960273bbf75be6388cd0350a32b -1 0000000000000000000000000000000000000000
-1 0000000000000000000000000000000000000000 -1 0000000000000000000000000000000000000000
invalid engine type:
$ echo 'changeset = unknown:changeset.txt' > unknownenginemap
$ hg log --style=./unknownenginemap
abort: invalid template engine: unknown
[255]
$ cd ..