git package - add keepGitDir option

Signed-off-by: Guillaume de Rouville <guillaume.derouville@gmail.com>

stdlib/git/git.cue

@@ -11,19 +11,25 @@ import (
 #Repository: {
 	// Git remote.
 	// Example: `"https://github.com/dagger/dagger"`
-	remote: string @dagger(input)
+	remote: string & dagger.#Input
 
 	// Git ref: can be a commit, tag or branch.
 	// Example: "main"
-	ref: string @dagger(input)
+	ref: string & dagger.#Input
 
 	// (optional) Subdirectory
-	subdir: string | *null @dagger(input)
+	subdir: *null | string & dagger.#Input
+
+	// (optional) Keep .git directory
+	keepGitDir: *false | bool
 
 	#up: [
 		op.#FetchGit & {
 			"remote": remote
 			"ref":    ref
+			if (keepGitDir) {
+				keepGitDir: true
+			}
 		},
 		if subdir != null {
 			op.#Subdir & {

stdlib/git/tests/git.cue

@@ -6,18 +6,19 @@ import (
 	"alpha.dagger.io/git"
 	"alpha.dagger.io/alpine"
 	"alpha.dagger.io/os"
-	"alpha.dagger.io/dagger/op"
 )
 
 repo: git.#Repository & {
 	remote:     "https://github.com/blocklayerhq/acme-clothing.git"
 	ref:        "master"
-
-	#up: [
-		op.#FetchGit & {
 	keepGitDir: true
-		},
-	]
+}
+
+repoSubDir: git.#Repository & {
+	remote:     "https://github.com/dagger/examples.git"
+	ref:        "main"
+	subdir:     "todoapp"
+	keepGitDir: true
 }
 
 branch: git.#CurrentBranch & {
@@ -40,6 +41,18 @@ TestRepository: os.#Container & {
 		"""
 }
 
+TestSubRepository: os.#Container & {
+	image: alpine.#Image & {
+		package: bash: "=5.1.0-r0"
+		package: git:  true
+	}
+	mount: "/repo1": from: repoSubDir
+	dir: "/repo1"
+	command: """
+		[ -d src ]
+		"""
+}
+
 TestCurrentBranch: os.#Container & {
 	image: alpine.#Image & {
 		package: bash: "=5.1.0-r0"