Make resources.Get use a file cache for remote resources

Closes #9228

2 files changed, 23 insertions, 10 deletions

diff --git a/cache/filecache/filecache_config.go b/cache/filecache/filecache_config.go
index 801799e36..1b3819771 100644
--- a/cache/filecache/filecache_config.go
+++ b/cache/filecache/filecache_config.go
@@ -42,11 +42,12 @@ var defaultCacheConfig = Config{
 }
 
 const (
-	cacheKeyGetJSON = "getjson"
-	cacheKeyGetCSV  = "getcsv"
-	cacheKeyImages  = "images"
-	cacheKeyAssets  = "assets"
-	cacheKeyModules = "modules"
+	cacheKeyGetJSON  = "getjson"
+	cacheKeyGetCSV   = "getcsv"
+	cacheKeyImages   = "images"
+	cacheKeyAssets   = "assets"
+	cacheKeyModules  = "modules"
+	cacheGetResource = "getresource"
 )
 
 type Configs map[string]Config
@@ -70,6 +71,7 @@ var defaultCacheConfigs = Configs{
 		MaxAge: -1,
 		Dir:    resourcesGenDir,
 	},
+	cacheGetResource: defaultCacheConfig,
 }
 
 type Config struct {
@@ -111,6 +113,11 @@ func (f Caches) AssetsCache() *Cache {
 	return f[cacheKeyAssets]
 }
 
+// GetResourceCache gets the file cache for remote resources.
+func (f Caches) GetResourceCache() *Cache {
+	return f[cacheGetResource]
+}
+
 func DecodeConfig(fs afero.Fs, cfg config.Provider) (Configs, error) {
 	c := make(Configs)
 	valid := make(map[string]bool)
diff --git a/cache/filecache/filecache_config_test.go b/cache/filecache/filecache_config_test.go
index acc127e67..1ff3b8112 100644
--- a/cache/filecache/filecache_config_test.go
+++ b/cache/filecache/filecache_config_test.go
@@ -50,7 +50,8 @@ maxAge = "11h"
 dir = "/path/to/c2"
 [caches.images]
 dir = "/path/to/c3"
-
+[caches.getResource]
+dir = "/path/to/c4"
 `
 
 	cfg, err := config.FromConfigString(configStr, "toml")
@@ -59,7 +60,7 @@ dir = "/path/to/c3"
 	decoded, err := DecodeConfig(fs, cfg)
 	c.Assert(err, qt.IsNil)
 
-	c.Assert(len(decoded), qt.Equals, 5)
+	c.Assert(len(decoded), qt.Equals, 6)
 
 	c2 := decoded["getcsv"]
 	c.Assert(c2.MaxAge.String(), qt.Equals, "11h0m0s")
@@ -68,6 +69,10 @@ dir = "/path/to/c3"
 	c3 := decoded["images"]
 	c.Assert(c3.MaxAge, qt.Equals, time.Duration(-1))
 	c.Assert(c3.Dir, qt.Equals, filepath.FromSlash("/path/to/c3/filecache/images"))
+
+	c4 := decoded["getresource"]
+	c.Assert(c4.MaxAge, qt.Equals, time.Duration(-1))
+	c.Assert(c4.Dir, qt.Equals, filepath.FromSlash("/path/to/c4/filecache/getresource"))
 }
 
 func TestDecodeConfigIgnoreCache(t *testing.T) {
@@ -94,7 +99,8 @@ maxAge = 3456
 dir = "/path/to/c2"
 [caches.images]
 dir = "/path/to/c3"
-
+[caches.getResource]
+dir = "/path/to/c4"
 `
 
 	cfg, err := config.FromConfigString(configStr, "toml")
@@ -103,7 +109,7 @@ dir = "/path/to/c3"
 	decoded, err := DecodeConfig(fs, cfg)
 	c.Assert(err, qt.IsNil)
 
-	c.Assert(len(decoded), qt.Equals, 5)
+	c.Assert(len(decoded), qt.Equals, 6)
 
 	for _, v := range decoded {
 		c.Assert(v.MaxAge, qt.Equals, time.Duration(0))
@@ -129,7 +135,7 @@ func TestDecodeConfigDefault(t *testing.T) {
 
 	c.Assert(err, qt.IsNil)
 
-	c.Assert(len(decoded), qt.Equals, 5)
+	c.Assert(len(decoded), qt.Equals, 6)
 
 	imgConfig := decoded[cacheKeyImages]
 	jsonConfig := decoded[cacheKeyGetJSON]