semver binary

[lunemec]

Hello,

I ran into a problem with my CI scripts needing to be bumped by 1 minor version + added a -ci at the end. I couldn't find any "easy" way to do it in bash (except for some crazy AWK scripts which didn't work).

I wanted to write this binary in rust, but since most of the work is done here, I just wanted to ask if you'd be opposed to me writing a binary version to semver (which could be included, or as separate project).

The idea is following:

# A bump example. (+patch)
OLD_VERSION = "1.2.3"
echo $OLD_VERSION | semver [patch]
"1.2.4"

# Minor update.
OLD_VERSION = "1.2.3"
echo $OLD_VERSION | semver minor
"1.3.0"

# Major update.
OLD_VERSION = "1.2.3"
echo $OLD_VERSION | semver major
"2.0.0"

# CI example.
OLD_VERSION = "1.2.3"
echo $OLD_VERSION | semver --meta=ci  # this may contain git-commit tag
"1.2.3+ci"

The main usage is for gitlab CI/CD scripts, which need to parse previous program version, and deploy +CI version in metadata. Since I have multiple programming environments, each uses diferent tools to manage versions and some (docker) don't have any.

I wanted to start rust-semver project on my github profile, but I didn't want to rip-off this project (since it will do most of the work).

Thank you!

[lunemec]

Issue #100! YAY! 😄

[steveklabnik]

I would not mind including it here! This would be useful.

[lunemec]

Cool!

[lunemec]

Hmm, I didn't think of Cargo.toml dependencies, it turns out, cargo does not yet support binary-only dependencies (rust-lang/cargo#1982), which is unfortunate, because you'd get them in library-only use but not use them....

Anyways, I'll first write it, then we can decide what :)

[lunemec]

Here is a first prototype:
https://github.com/lunemec/semver/tree/binary

[lunemec]

Pull request: #101.

[lunemec]

I updated the semver-parser (made common public: steveklabnik/semver-parser#13) but I think you should take a look first. Here is "working" version of semver: https://github.com/lunemec/semver/tree/binary

I didn't create PR because semver-parser with version 0.7.1 doesn't exist. I tested it against my github fork with changes, and everything works fine.

Now the dependencies only contain clap without default features, that means these libraries (from clap alone):

[dependencies]
bitflags = "0.7.0"
vec_map = "0.6.0"
unicode-width = "0.1.4"
unicode-segmentation = "1.0.1"

I'm not sure if that is OK with you or not. If not, I suggest creating another project semver-bin where these dependencies can be.

Thanks!

[lunemec]

/cc @steveklabnik

[steveklabnik]

Yeah, still thinking, sorry!

[dtolnay]

I would prefer not to build this into this crate. It seems appropriate for a separate standalone project though!