feat: cibtool event add --base value is not rev-parsed — radicle-ci-broker

This allows a value of, say, HEAD, which is convenient.

Signed-off-by: Lars Wirzenius liw@liw.fi

 when I run cibtool --db x.db event list
 then stdout is exactly ""
 when I run bash radenv.sh cibtool --db x.db event add --repo testy --ref main --commit HEAD --base c0ffee --id-file id.txt
 when I run bash radenv.sh cibtool --db x.db event add --repo testy --ref main --commit HEAD --base HEAD --id-file id.txt
 when I run cibtool --db x.db event show --id-file id.txt
 then stdout contains "rad:"
 then stdout contains "main"
 then stdout contains "c0ffee"
 when I run cibtool --db x.db event remove --id-file id.txt

     #[clap(long)]
     commit: String,
     /// The base commit referred to by the event. Optional, but must
     /// be a SHA commit id.
     /// The base commit referred to by the event. The value is parsed
     /// the same way as `--commit` value.
     #[clap(long)]
     base: Option<Oid>,
     base: Option<String>,
     /// Write the event to this file, as JSON, instead of adding it to
     /// the queue.

             RefString::try_from(name.clone()).map_err(|e| CibToolError::RefString(name, e))?;
         let event = if let Some(base) = &self.base {
             CiEvent::branch_updated(nid, rid, &name, oid, *base)
             let base = if let Ok(base) = Oid::from_str(base) {
                 base
             } else {
                 self.lookup_commit(rid, base)?
             };
             CiEvent::branch_updated(nid, rid, &name, oid, base)
                 .map_err(CibToolError::BranchCreted)?
         } else {
             CiEvent::branch_created(nid, rid, &name, oid).map_err(CibToolError::BranchCreted)?