evolve: support successors of ancestor of orphan with multiple roots
The previous code checked that the set of successors has a single root.
However, there’s no reason to require that in general.
Example:
o 6
|
o 5
|\
| o 4
| |
o | 3
|/
| * 2
| |
| x 1
|/
o 0
1 is obsoleted by 3, 4 and 6. We are considering the case when 2 gets evolved.
The roots are [3, 4] and the heads are [6]. Before the change, the user was
asked which destination to choose, but there was only one choice (6). After the
change, 6 is chosen as the destination.
#!/bin/bash
set -eox pipefail
function compile {
pandoc \
-s $1 \
-o $2 \
--toc --toc-depth=4 \
-F pandocfilters/examples/graphviz.py -F mypandocfilters/graphviz-file.py -F mypandocfilters/raw-file.py \
-t html5 \
--template standalone.html --variable=template_css:uikit.css
}
compile slides.md index.html