fix(facts.git): GitLocalCommit fact failing on nonlocal ref (#1881)

Author: yagarea

src/pyinfra/facts/git.py

@@ -83,7 +83,7 @@ class GitLocalCommit(GitFactBase):
 
     @override
     def command(self, repo: str, ref: str = "HEAD") -> str:
-        return f"! test -d {repo} || (cd {repo} && git rev-parse {ref} 2>/dev/null)"
+        return f"! test -d {repo} || (cd {repo} && git rev-parse {ref} 2>/dev/null) || true"
 
     @override
     def process(self, output: list[str]):

tests/facts/git.GitLocalCommit/branch_ref.json

@@ -3,7 +3,7 @@
         "repo": "myrepo",
         "ref": "mybranch"
     },
-    "command": "! test -d myrepo || (cd myrepo && git rev-parse mybranch 2>/dev/null)",
+    "command": "! test -d myrepo || (cd myrepo && git rev-parse mybranch 2>/dev/null) || true",
     "requires_command": "git",
     "output": [
         "1a2b3c4d5e6f7890abcdef1234567890abcdef12"

tests/facts/git.GitLocalCommit/head.json

@@ -1,6 +1,6 @@
 {
     "arg": "myrepo",
-    "command": "! test -d myrepo || (cd myrepo && git rev-parse HEAD 2>/dev/null)",
+    "command": "! test -d myrepo || (cd myrepo && git rev-parse HEAD 2>/dev/null) || true",
     "requires_command": "git",
     "output": [
         "1a2b3c4d5e6f7890abcdef1234567890abcdef12"

tests/facts/git.GitLocalCommit/no_repo.json

@@ -1,6 +1,6 @@
 {
     "arg": "myrepo",
-    "command": "! test -d myrepo || (cd myrepo && git rev-parse HEAD 2>/dev/null)",
+    "command": "! test -d myrepo || (cd myrepo && git rev-parse HEAD 2>/dev/null) || true",
     "requires_command": "git",
     "output": [],
     "fact": null

tests/facts/git.GitLocalCommit/unknown_ref.json

@@ -0,0 +1,10 @@
+{
+    "arg": {
+        "repo": "myrepo",
+        "ref": "v34.0.1"
+    },
+    "command": "! test -d myrepo || (cd myrepo && git rev-parse v34.0.1 2>/dev/null) || true",
+    "requires_command": "git",
+    "output": [],
+    "fact": null
+}