Custom function to collapse all whitespaces (incl newlines) into a single space

[kaushalmodi]

Is your feature request related to a problem? Please describe.

I write details git commit messages. So they often have newlines and indentations. But when git-cliff is parsing those, I would like to see a 1-liner commit message truncated to 90 characters. I would like to do something like s/\s+/ /g as one would do in sed (i.e. collapse multiple spaces into a single space). But I cannot find a way to do regex based replacement using Tera.

Describe the solution you'd like

Custom git-cliff function called ws_collapse or something that reduces consecutive newlines, spaces, tabs into a single space.

Describe alternatives you've considered

So I am doing this:

commit.message
             | trim_end
             | replace(from="\n", to=" ")
             | replace(from="  ", to=" ")  | replace(from="    ", to=" ")  | replace(from="      ", to=" ")
             | replace(from="   ", to=" ") | replace(from="     ", to=" ") | replace(from="       ", to=" ")

https://github.com/kaushalmodi/ox-hugo/blob/7af7e72e139655132cfa3ca5b9152690b8eaf1fe/doc/cliff.toml#L31-L35

[kaushalmodi]

If a generated regex based replacement function can be added then I would like to replace this:

replace(from="https://github.com/kaushalmodi/ox-hugo/issues/", to="Issue ")

https://github.com/kaushalmodi/ox-hugo/blob/7af7e72e139655132cfa3ca5b9152690b8eaf1fe/doc/cliff.toml#L36

with a Tera or custom git-cliff function that does something like this in sed:

s|https://github.com/.*/issues/([0-9]+)|[Issue # \1](\0)|g

[orhun]

Hello!

I recently pushed 64317f2 which makes it possible to manipulate commit messages before actually parsing/templating. Maybe it can also be utilized for your use-case like this:

[git]
commit_preprocessors = [
	{ pattern = "  +", replace = " "}, # remove multiple whitespaces
    { pattern = "https://github.com/.*/issues/([0-9]+)", replace = "[Issue #${1}]"} # turn issue links into numbers
 ]

Can you try this out?

See commit_preprocessors for more information.

[kaushalmodi]

Thank you! 🙇 . You can see me using this new feature in kaushalmodi/ox-hugo@cb2fad1 .

[orhun]

Thank you! bow . You can see me using this new feature in kaushalmodi/ox-hugo@cb2fad1 .

Oh nice! You seem to use it very extensively, feel free to add new examples to README.md 😄