Display commit revision for latest Tag, or first commit

[rbuckland]

I am integrating convco into a monorepo that uses pants for the build of many artefacts (packages)

Pants, given a commit can detail with filters (paths, types) which packages are impacted.

It can also build the said packages with the same filters.

An example of the usage would be

---

pants --changes-since=$(convco version --tagrev --prefix my/lib/v --paths my/lib ) package list

Convco knows for a given paths (path/to/package) and for a given tag prefix path/to/package/v , what the latest tag is.

What I am looking for is to ask convco for the commit of that tag instead (version --tagrev)

Currently I do this lookup in shell with calls to convco and to git log

It will be nice to do this only with convco

In scenario where there is no tag then convco should print the first introducing commit (if paths or the first commit if no paths)

Thoughts ?

[hdevalke]

I used --commit-sha in #158 , but i think it might work to add a flag --print-prefix as pants probably understands all kinds of git revisions for --changed-since

this is what it prints for this repository at e9d98f7.

❯ git log --oneline -1 v0.4.3
feeea90 (tag: v0.4.3) chore: release v0.4.3

❯ cargo run -q -- version
0.4.3

❯ cargo run -q -- version --commit-sha
feeea9022f2795d280602aaba4d3c24a8088f125

[hdevalke]

I also added an option to print the prefix in front of the semantic version convco version --print-prefix or convco version --pp

[rbuckland]

Very nice. Thanks !