193

[RAprogramm]

Summary

Added automated version comparison with crates.io to prevent publishing duplicate or older versions. The release workflow now checks if the local version is higher than the current crates.io version before attempting to publish.

Changes

Version Check Step

• Fetches current version from crates.io API (/api/v1/crates/{crate}/)
• Compares local tag version with crates.io max_version using semver sort (sort -V)
• Sets should_publish output variable for conditional execution
• Handles first-time publish when crate not found on crates.io

Conditional Publishing

• All publish steps now conditional on should_publish == 'true'
• Includes: Rust installation, template publish, derive publish, main crate publish
• Skips all publish steps when version already exists

Version Comparison Logic

# Three scenarios:
1. LOCAL == CRATESIO  → should_publish=false, skip with message
2. LOCAL > CRATESIO   → should_publish=true, proceed
3. LOCAL < CRATESIO   → should_publish=false, fail with error

Benefits

• Prevents Errors: No more duplicate version publish failures
• Clear Feedback: Explicit messages for each scenario
• Idempotent: Can re-run release workflow safely
• Better DX: Automatic version conflict detection

Test Plan

• Tested version comparison logic locally with various scenarios
• Verified semver sort handles major/minor/patch correctly
• Checked crates.io API response format
• Workflow YAML validated
• All existing tests pass (157 tests)

Testing Scenarios

LOCAL=0.24.18 vs CRATESIO=0.24.18 → EQUAL (skip)
LOCAL=0.24.19 vs CRATESIO=0.24.18 → HIGHER (publish)
LOCAL=0.24.17 vs CRATESIO=0.24.18 → LOWER (fail)
LOCAL=1.0.0   vs CRATESIO=0.24.18 → HIGHER (publish)

Next Steps

Workflow will be tested on next actual release tag push.

Closes #193

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[RAprogramm]

Fixed in commit f048f5a.

Replaced sort -V with proper semver comparison using Rust semver crate. The version check now:

1. Creates temporary Rust project with semver = "1.0" dependency
2. Uses semver::Version::parse() for accurate parsing
3. Compares versions with proper prerelease handling

Correctly handles:

• 1.0.0 > 1.0.0-alpha ✓
• 1.0.0-beta > 1.0.0-alpha ✓
• All stable version comparisons ✓

Tested scenarios:

0.24.19 vs 0.24.18: greater
0.24.18 vs 0.24.18: equal
0.24.17 vs 0.24.18: less
1.0.0 vs 1.0.0-alpha: greater
1.0.0-alpha vs 1.0.0: less
1.0.0-beta vs 1.0.0-alpha: greater

This eliminates the prerelease ordering issues mentioned in the P1 review.