From b1af277fa81be6cd20533dfe986f44b97c10c69b Mon Sep 17 00:00:00 2001
From: Amolith <amolith@secluded.site>
Date: Tue, 28 Nov 2023 19:19:14 -0500
Subject: [PATCH] Use FlexVer to sort by tag instead of date

Implements: https://todo.sr.ht/~amolith/willow/24
---
 git/git.go         |  3 ---
 go.mod             |  1 +
 go.sum             |  2 ++
 project/project.go | 17 +++++++++++------
 4 files changed, 14 insertions(+), 9 deletions(-)

diff --git a/git/git.go b/git/git.go
index 892ba50..098dd37 100644
--- a/git/git.go
+++ b/git/git.go
@@ -10,7 +10,6 @@ import (
 	"io"
 	"net/url"
 	"os"
-	"sort"
 	"strings"
 	"time"
 
@@ -104,8 +103,6 @@ func GetReleases(gitURI, forge string) ([]Release, error) {
 		return nil, err
 	}
 
-	sort.Slice(releases, func(i, j int) bool { return releases[i].Date.After(releases[j].Date) })
-
 	return releases, nil
 }
 
diff --git a/go.mod b/go.mod
index 609c922..67c6c6c 100644
--- a/go.mod
+++ b/go.mod
@@ -48,6 +48,7 @@ require (
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
 	github.com/sergi/go-diff v1.3.1 // indirect
 	github.com/skeema/knownhosts v1.2.1 // indirect
+	github.com/unascribed/FlexVer/go/flexver v1.0.0 // indirect
 	github.com/xanzy/ssh-agent v0.3.3 // indirect
 	golang.org/x/mod v0.14.0 // indirect
 	golang.org/x/net v0.19.0 // indirect
diff --git a/go.sum b/go.sum
index 7f538fc..38d0542 100644
--- a/go.sum
+++ b/go.sum
@@ -118,6 +118,8 @@ github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UV
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
+github.com/unascribed/FlexVer/go/flexver v1.0.0 h1:eaAAWwaT8TiGK75wfEgQRPRVJc1ZIiLTLGUKXxpcs0c=
+github.com/unascribed/FlexVer/go/flexver v1.0.0/go.mod h1:OkWZGfmV3DV2ADlgoS7W1+dD1OOci4mEracZCi3ulBk=
 github.com/xanzy/ssh-agent v0.3.3 h1:+/15pJfg/RsTxqYcX6fHqOXZwwMP+2VyYWJeWM2qQFM=
 github.com/xanzy/ssh-agent v0.3.3/go.mod h1:6dzNDKs0J9rVPHPhaGCukekBHKqfl+L3KghI1Bc68Uw=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
diff --git a/project/project.go b/project/project.go
index 99fed90..888b29f 100644
--- a/project/project.go
+++ b/project/project.go
@@ -13,6 +13,8 @@ import (
 	"strings"
 	"time"
 
+	"github.com/unascribed/FlexVer/go/flexver"
+
 	"git.sr.ht/~amolith/willow/db"
 	"git.sr.ht/~amolith/willow/git"
 	"git.sr.ht/~amolith/willow/rss"
@@ -52,9 +54,7 @@ func GetReleases(dbConn *sql.DB, proj Project) (Project, error) {
 			Date:    time.Time{},
 		})
 	}
-	sort.Slice(proj.Releases, func(i, j int) bool {
-		return proj.Releases[i].Date.After(proj.Releases[j].Date)
-	})
+	proj.Releases = SortReleases(proj.Releases)
 	return proj, nil
 }
 
@@ -100,12 +100,17 @@ func fetchReleases(dbConn *sql.DB, p Project) (Project, error) {
 			}
 		}
 	}
-	sort.Slice(p.Releases, func(i, j int) bool {
-		return p.Releases[i].Date.After(p.Releases[j].Date)
-	})
+	p.Releases = SortReleases(p.Releases)
 	return p, err
 }
 
+func SortReleases(releases []Release) []Release {
+	sort.Slice(releases, func(i, j int) bool {
+		return !flexver.Less(releases[i].Tag, releases[j].Tag)
+	})
+	return releases
+}
+
 // upsert updates or inserts a project release into the database
 func upsert(dbConn *sql.DB, url string, releases []Release) error {
 	for _, release := range releases {