ci: add versions fixture generator for Red Hat

.github/workflows/semantic.yml

@@ -59,6 +59,39 @@ jobs:
           path: /tmp/debian-versions-generator-cache.csv
           key: ${{ runner.os }}-${{ hashFiles('debian-db.zip') }}
 
+  generate-redhat-versions:
+    permissions:
+      contents: read # to fetch code (actions/checkout)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1
+
+      - uses: actions/cache/restore@3624ceb22c1c5a301c8db4169662070a689d9ea8 # v4.1.1
+        with:
+          path: /tmp/redhat-versions-generator-cache.csv
+          key: ${{ runner.os }}-
+
+      - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1
+        with:
+          persist-credentials: false
+      - uses: actions/setup-python@f677139bbe7f9c59b41e40162b753c062f5d49a3 # v5.2.0
+        with:
+          python-version: "3.10"
+      - run: sudo apt install rpm
+      - run: rpm --version
+      - run: python3 scripts/generators/generate-redhat-versions.py
+      - run: git status
+      - run: stat redhat-db.zip
+      - uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 # v4.4.3
+        with:
+          name: generated-redhat-versions
+          path: internal/semantic/fixtures/redhat-versions-generated.txt
+
+      - uses: actions/cache/save@3624ceb22c1c5a301c8db4169662070a689d9ea8 # v4.1.1
+        with:
+          path: /tmp/redhat-versions-generator-cache.csv
+          key: ${{ runner.os }}-${{ hashFiles('redhat-db.zip') }}
+
   generate-packagist-versions:
     permissions:
       contents: read # to fetch code (actions/checkout)
@@ -173,6 +206,7 @@ jobs:
       - generate-rubygems-versions
       - generate-maven-versions
       - generate-cran-versions
+      - generate-redhat-versions
     if: always()
     steps:
       - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1

.gitignore

@@ -9,3 +9,6 @@
 *.pprof
 .go-version
 node_modules
+
+# we don't want to check in this file as it's very very large
+/internal/semantic/fixtures/redhat-versions-generated.txt

internal/semantic/compare_test.go

@@ -2,6 +2,8 @@ package semantic_test
 
 import (
 	"bufio"
+	"errors"
+	"io/fs"
 	"os"
 	"strings"
 	"testing"
@@ -234,7 +236,28 @@ func TestVersion_Compare_Ecosystems(t *testing.T) {
 			name: "Alpine",
 			file: "alpine-versions-generated.txt",
 		},
+		{
+			name: "Red Hat",
+			file: "redhat-versions.txt",
+		},
+	}
+
+	// we don't check the generated fixture for Red Hat in due to its size
+	// so we only add it if it exists, so that people can have it locally
+	// without needing to do a dance with git everytime they commit
+	_, err := os.Stat("fixtures/redhat-versions-generated.txt")
+	if err == nil {
+		tests = append(tests, struct {
+			name string
+			file string
+		}{
+			name: "Red Hat",
+			file: "redhat-versions-generated.txt",
+		})
+	} else if !errors.Is(err, fs.ErrNotExist) {
+		t.Fatalf("fixtures/redhat-versions-generated.txt exists but could not be read: %v", err)
 	}
+
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			t.Parallel()

internal/semantic/fixtures/redhat-versions.txt

@@ -0,0 +1,172 @@
+1.0 = 1.0
+1.0 < 2.0
+2.0 > 1.0
+2.0.1 = 2.0.1
+2.0 < 2.0.1
+2.0.1 > 2.0
+2.0.1a = 2.0.1a
+2.0.1a > 2.0.1
+2.0.1 < 2.0.1a
+5.5p1 = 5.5p1
+5.5p1 < 5.5p2
+5.5p2 > 5.5p1
+5.5p10 = 5.5p10
+5.5p1 < 5.5p10
+5.5p10 > 5.5p1
+10xyz < 10.1xyz
+10.1xyz > 10xyz
+xyz10 = xyz10
+xyz10 < xyz10.1
+xyz10.1 > xyz10
+xyz.4 = xyz.4
+xyz.4 < 8
+8 > xyz.4
+xyz.4 < 2
+2 > xyz.4
+5.5p2 < 5.6p1
+5.6p1 > 5.5p2
+5.6p1 < 6.5p1
+6.5p1 > 5.6p1
+6.0.rc1 > 6.0
+6.0 < 6.0.rc1
+10b2 > 10a1
+10a2 < 10b2
+1.0aa = 1.0aa
+1.0a < 1.0aa
+1.0aa > 1.0a
+10.0001 = 10.0001
+10.0001 = 10.1
+10.1 = 10.0001
+10.0001 < 10.0039
+10.0039 > 10.0001
+4.999.9 < 5.0
+5.0 > 4.999.9
+20101121 = 20101121
+20101121 < 20101122
+20101122 > 20101121
+2_0 = 2_0
+2.0 = 2_0
+2_0 = 2.0
+a = a
+a+ = a+
+a+ = a_
+a_ = a+
++a = +a
++a = _a
+_a = +a
++_ = +_
+_+ = +_
+_+ = _+
++ = _
+_ = +
+1.0~rc1 = 1.0~rc1
+
+1.0~rc1 < 1.0
+1.0 > 1.0~rc1
+
+1.0~rc1 < 1.0~rc2
+1.0~rc2 > 1.0~rc1
+
+1.0~rc1~git123 = 1.0~rc1~git123
+1.0~rc1~git123 < 1.0~rc1
+1.0~rc1 < 1.0arc1
+
+# epochs
+1:1 = 1:1
+0:1 < 1:1
+0:1 < 1:2
+0:1~1 < 1:2
+3:1~1 > 1:2
+1~1 < 1:2
+3 < 1:2
+13 < 14:2
+13:5 < 14:2
+13:5 > 04:2
+13:5 > 004:2
+013:5 > 004:2
+130:5 > 004:2
+184:2 > 177:5
+01:2 = 1:2
+
+a:1 = a:1
+a:1 < b:1
+a:1 < a:2
+a:1~1 < a:2
+c:1~1 > a:2
+
+a1:1 = a1:1
+a1:1 < b1:1
+a1:1 < a1:2
+a2:1 > a1:2
+
+b1:1 > a2:1
+a:1 < a1:1
+b:1 > a1:1
+b~1:1 > a1:1
+
+# releases
+1-123 > 1-2
+1-1 = 1-1
+1-2 > 1-1
+1 < 1-1
+1 < 1-0
+1 < 1-
+1- = 1-
+
+1-123 > 1-1.el7
+
+# arch
+0:3.10.0-229.el7 < 0:3.10.0-229.1.2.ael7b
+0:2.4.21-9.EL < 0:2.4.21-9.0.1.EL
+
+0:3.10.0-229.el7 < 0:3.10.0-229.1.2.ael7b
+1-1.a > 1-1.
+1-1. = 1-1.
+1-1. = 1-1
+1-1 < 1-1.1
+1. = 1
+1-1.a = 1-1.a
+1-1.a < 1-1.e
+1-1.c > 1-1.b
+1-1.4 > 1-1.3
+1-1.1 < 1-1.2
+1-1.ael7b < 1-1.el7
+0:3.10.0-229.1.2.ael7b < 0:3.10.0-229.1.2.el7
+
+1 < 1-
+0:3.10.0-229.1.2.ael7b < 0:3.10.0-229.4.2.ael7b
+
+1.0^ = 1.0^
+1.0^ > 1.0
+1.0 < 1.0^
+1.0^git1 = 1.0^git1
+1.0^git1 > 1.0
+1.0 < 1.0^git1
+1.0^git1 < 1.0^git2
+1.0^git2 > 1.0^git1
+1.0^git1 < 1.01
+1.01 > 1.0^git1
+1.0^20160101 = 1.0^20160101
+1.0^20160101 < 1.0.1
+1.0.1 > 1.0^20160101
+1.0^20160101^git1 = 1.0^20160101^git1
+1.0^20160102 > 1.0^20160101^git1
+1.0^20160101^git1 < 1.0^20160102
+
+1.0~rc1^git1 = 1.0~rc1^git1
+1.0~rc1^git1 > 1.0~rc1
+1.0~rc1 < 1.0~rc1^git1
+1.0^git1~pre = 1.0^git1~pre
+1.0^git1 > 1.0^git1~pre
+1.0^git1~pre < 1.0^git1
+
+1.1.α = 1.1.α
+1.1.α = 1.1.β
+1.1.β = 1.1.α
+1.1.αα = 1.1.α
+1.1.α = 1.1.ββ
+1.1.ββ = 1.1.αα
+
+1.1.a < 1.2.ββ
+1.1.a < 0:1.2.ββ
+1.1.α < 1.1.a

internal/semantic/parse.go

@@ -48,6 +48,8 @@ func Parse(str string, ecosystem models.Ecosystem) (Version, error) {
 		return parseSemverVersion(str), nil
 	case "PyPI":
 		return parsePyPIVersion(str), nil
+	case "Red Hat":
+		return parseRedHatVersion(str), nil
 	case "RubyGems":
 		return parseRubyGemsVersion(str), nil
 	case "Ubuntu":