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[BUG] Store JSON in contributors commit cache

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- The code that gets contributor stats tried to store an
`map[string]*ContributorData` type in the cache, this works for the
memory cache but not for other caches such as Redis.
- The cache implementation for Redis would convert this map via
`fmt.Sprintf` to an string, which would simply print the pointer and not
the value of the pointer. Storing pointers is a no-go as this will get
GC-ed eventually within a few minutes. Therefore store everything with
json, that does properly store the value of the pointers.
- Adds unit test that verifies JSON is being used.
- Resolves https://codeberg.org/forgejo/forgejo/issues/3158

(cherry picked from commit 4c8b67c4b2)
This commit is contained in:
Gusted 2024-04-11 12:50:04 +02:00 committed by GitHub
parent b519ae39d7
commit d60152587c
2 changed files with 22 additions and 4 deletions
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17
services/repository/contributors_graph.go
View file

@ -20,6 +20,7 @@ import (
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/gitrepo"
"code.gitea.io/gitea/modules/graceful"
"code.gitea.io/gitea/modules/json"
"code.gitea.io/gitea/modules/log"
api "code.gitea.io/gitea/modules/structs"
@ -108,8 +109,9 @@ func GetContributorStats(ctx context.Context, cache cache.Cache, repo *repo_mode
switch v := cache.Get(cacheKey).(type) {
case error:
return nil, v
case map[string]*ContributorData:
return v, nil
case string:
var cachedStats map[string]*ContributorData
return cachedStats, json.Unmarshal([]byte(v), &cachedStats)
default:
return nil, fmt.Errorf("unexpected type in cache detected")
}
@ -309,7 +311,16 @@ func generateContributorStats(genDone chan struct{}, cache cache.Cache, cacheKey
total.TotalCommits++
}
_ = cache.Put(cacheKey, contributorsCommitStats, contributorStatsCacheTimeout)
data, err := json.Marshal(contributorsCommitStats)
if err != nil {
err := fmt.Errorf("couldn't marshal the data: %w", err)
_ = cache.Put(cacheKey, err, contributorStatsCacheTimeout)
return
}
// Store the data as an string, to make it uniform what data type is returned
// from caches.
_ = cache.Put(cacheKey, string(data), contributorStatsCacheTimeout)
generateLock.Delete(cacheKey)
if genDone != nil {
genDone <- struct{}{}

9
services/repository/contributors_graph_test.go
View file

@ -11,6 +11,7 @@ import (
repo_model "code.gitea.io/gitea/models/repo"
"code.gitea.io/gitea/models/unittest"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/json"
"gitea.com/go-chi/cache"
"github.com/stretchr/testify/assert"
@ -32,8 +33,14 @@ func TestRepository_ContributorsGraph(t *testing.T) {
assert.ErrorAs(t, err, &git.ErrNotExist{})
generateContributorStats(nil, mockCache, "key2", repo, "master")
data, isData := mockCache.Get("key2").(map[string]*ContributorData)
dataString, isData := mockCache.Get("key2").(string)
assert.True(t, isData)
// Verify that JSON is actually stored in the cache.
assert.EqualValues(t, `{"ethantkoenig@gmail.com":{"name":"Ethan Koenig","login":"","avatar_link":"https://secure.gravatar.com/avatar/b42fb195faa8c61b8d88abfefe30e9e3?d=identicon","home_link":"","total_commits":1,"weeks":{"1511654400000":{"week":1511654400000,"additions":3,"deletions":0,"commits":1}}},"jimmy.praet@telenet.be":{"name":"Jimmy Praet","login":"","avatar_link":"https://secure.gravatar.com/avatar/93c49b7c89eb156971d11161c9b52795?d=identicon","home_link":"","total_commits":1,"weeks":{"1624752000000":{"week":1624752000000,"additions":2,"deletions":0,"commits":1}}},"jon@allspice.io":{"name":"Jon","login":"","avatar_link":"https://secure.gravatar.com/avatar/00388ce725e6886f3e07c3733007289b?d=identicon","home_link":"","total_commits":1,"weeks":{"1607817600000":{"week":1607817600000,"additions":10,"deletions":0,"commits":1}}},"total":{"name":"Total","login":"","avatar_link":"","home_link":"","total_commits":3,"weeks":{"1511654400000":{"week":1511654400000,"additions":3,"deletions":0,"commits":1},"1607817600000":{"week":1607817600000,"additions":10,"deletions":0,"commits":1},"1624752000000":{"week":1624752000000,"additions":2,"deletions":0,"commits":1}}}}`, dataString)
var data map[string]*ContributorData
assert.NoError(t, json.Unmarshal([]byte(dataString), &data))
var keys []string
for k := range data {
keys = append(keys, k)