Files
semver-generator/cmd/utils/semver.go
T
lukaszraczylo e90191de4c feat(matching): add an opt-in regex keyword matching mode
Fuzzy matching compares each keyword with every word of the commit
message. A word matches if it contains the keyword's letters in order.
Thus "feat" matches "fix(delegation):" and "major" matches
"deps(majors):", which gives false minor and major versions.

The new top-level config key "matching" accepts "fuzzy" (the default)
or "regex". In regex mode every wording keyword is a Go regular
expression. The tool compiles all of them when it loads the config and
runs them against the full commit message, so "(?m)^" anchors a
pattern to the start of a line. An invalid value, an invalid pattern,
or any other config parse error in regex mode stops the tool with a
non-zero exit code. It never falls back to fuzzy matching.

Fuzzy mode does not change. The blacklist check moves into one helper
that both modes use. A replay of 15 repositories gives the same
versions as before. This change improves version precision for the
repositories that opt in.

Claude-Session: https://claude.ai/code/session_01Qq1gbqQek1Zjtofo4VDRdW
2026-09-25 19:35:48 +01:00

121 lines
3.2 KiB
Go

package utils
import (
"strings"
)
// CalculateSemver calculates the semantic version based on commit messages
func CalculateSemver(
commits []CommitDetails,
tags []TagDetails,
wording Wording,
matcher KeywordMatcher,
blacklist []string,
initialSemver SemVer,
respectExisting bool,
strictMode bool,
tagPrefixes []string,
) SemVer {
// Default-preserving: callers that don't select a matcher get today's
// fuzzy behaviour rather than a nil-pointer panic.
if matcher == nil {
matcher = FuzzyMatcher{}
}
semver := initialSemver
startIndex := 0
// If respecting existing tags, find the latest tagged commit and start from there
if respectExisting && len(tags) > 0 {
latestTagIndex := -1
var latestTagName string
// Find the latest tagged commit (highest index since commits are oldest-first)
for i, commit := range commits {
for _, tag := range tags {
if commit.Hash == tag.Hash {
if i > latestTagIndex {
latestTagIndex = i
latestTagName = tag.Name
}
}
}
}
// If we found a tagged commit, use its version and start processing after it
if latestTagIndex >= 0 {
Debug("Found latest existing tag", map[string]interface{}{
"tag": latestTagName,
"commit": strings.TrimSuffix(commits[latestTagIndex].Message, "\n"),
})
semver = ParseExistingSemver(latestTagName, semver, tagPrefixes)
startIndex = latestTagIndex + 1
}
}
for _, commit := range commits[startIndex:] {
// In non-strict mode, increment patch by default
if !strictMode {
semver.Patch++
Debug("Incrementing patch (DEFAULT)", map[string]interface{}{
"commit": strings.TrimSuffix(commit.Message, "\n"),
"semver": FormatSemver(semver),
})
}
// Check for keyword matches
matchPatch := matcher.Matches(commit.Message, wording.Patch, blacklist)
matchMinor := matcher.Matches(commit.Message, wording.Minor, blacklist)
matchMajor := matcher.Matches(commit.Message, wording.Major, blacklist)
matchReleaseCandidate := matcher.Matches(commit.Message, wording.Release, blacklist)
// Apply version changes based on matches
if matchMajor {
semver.Major++
semver.Minor = 0
semver.Patch = 1
semver.EnableReleaseCandidate = false
semver.Release = 0
Debug("Incrementing major (WORDING)", map[string]interface{}{
"commit": strings.TrimSuffix(commit.Message, "\n"),
"semver": FormatSemver(semver),
})
continue
}
if matchMinor {
semver.Minor++
semver.Patch = 1
semver.EnableReleaseCandidate = false
semver.Release = 0
Debug("Incrementing minor (WORDING)", map[string]interface{}{
"commit": strings.TrimSuffix(commit.Message, "\n"),
"semver": FormatSemver(semver),
})
continue
}
if matchReleaseCandidate {
semver.Release++
semver.Patch = 1
semver.EnableReleaseCandidate = true
Debug("Incrementing release candidate (WORDING)", map[string]interface{}{
"commit": strings.TrimSuffix(commit.Message, "\n"),
"semver": FormatSemver(semver),
})
continue
}
if matchPatch {
semver.Patch++
Debug("Incrementing patch (WORDING)", map[string]interface{}{
"commit": strings.TrimSuffix(commit.Message, "\n"),
"semver": FormatSemver(semver),
})
continue
}
}
return semver
}