publish multiple crates, races with dependencies · Issue #9507 · rust-lang/cargo (original) (raw)

Problem

My project has multiple crates in a cargo workspace. I use a shell loop to run cargo publish on each of the crates in dependency order.

I get output like this:

+ cargo publish --no-verify
    Updating crates.io index
   Packaging otter-api-tests v0.6.0 (/volatile/rustcargo/Rustup/Game/server/apitest)
   Uploading otter-api-tests v0.6.0 (/volatile/rustcargo/Rustup/Game/server/apitest)
nailing-cargo: finished.  status 0.
+ nailing-cargo --no-nail --linkfarm=git --- sh -xec 
          find . ! -type l ! -type d ! -path './target/*' -print0               | xargs -0r rm --
          cd wdriver; cargo publish --no-verify 
        
nailing-cargo: out-of-tree, building in: `/home/ian/Rustup/Game/Build/server'
nailing-cargo: using really to run as user `rustcargo'
nailing-cargo: invoking: sh -xec 
          find . ! -type l ! -type d ! -path './target/*' -print0               | xargs -0r rm --
          cd wdriver; cargo publish --no-verify 
        
+ find . ! -type l ! -type d ! -path ./target/* -print0
+ xargs -0r rm --
+ cd wdriver
+ cargo publish --no-verify
    Updating crates.io index
   Packaging otter-webdriver-tests v0.6.0 (/volatile/rustcargo/Rustup/Game/server/wdriver)
error: failed to prepare local package for uploading

Caused by:
  failed to select a version for the requirement `otter-api-tests = "=0.6.0"`
  candidate versions found which didn't match: 0.5.1
  location searched: crates.io index
  required by package `otter-webdriver-tests v0.6.0 (/volatile/rustcargo/Rustup/Game/server/wdriver)`

As you can see, cargo publish for otter-api-tests v0.6.0 succeeded. But cargo publish for otter-webdriver-tests then failed, complaining that otter-api-tests = "=0.6.0" could not be resolved.

I tried working around this with sleep 10. That wasn't enough.

I looked in cargo help publish to see if there was a way to turn off the dependency check, but I didn't see one. I also looked at various commands to see if I could perhaps poll the registry, but nothing seemed relevant. cargo search seems too dwim, even with postprocessing of the ouptut, and I am not convinced (from my experiences with publishing otter 0.5.1) that this would necessarily work.

Steps

Make two crates, A and B, where B depends on the precise version of A.
cd A && cargo publish && cd ../B && cargo publish

Possible Solution(s)

Ideally whatever service cargo publish talks to wouldn't say "yes" until it had done it. Or maybe cargo publish could at least have an option to wait.

Notes

Output of cargo version:

cargo 1.54.0-nightly (e51522ab3 2021-05-07)

I am slightly perplexed since I don't understand how large Rust projects with multiple crates do their publish.