merge(third_party/git): Merge squashed git subtree at v2.23.0 r/373

Merge commit '1b593e1ea4d2af0f6444d9a7788d5d99abd6fde5' as 'third_party/git'

1 files changed, 39 insertions, 0 deletions

diff --git a/third_party/git/version.c b/third_party/git/version.c
new file mode 100644
index 000000000000..41b718c29e1b
--- /dev/null
+++ b/third_party/git/version.c
@@ -0,0 +1,39 @@
+#include "git-compat-util.h"
+#include "version.h"
+#include "strbuf.h"
+
+const char git_version_string[] = GIT_VERSION;
+const char git_built_from_commit_string[] = GIT_BUILT_FROM_COMMIT;
+
+const char *git_user_agent(void)
+{
+	static const char *agent = NULL;
+
+	if (!agent) {
+		agent = getenv("GIT_USER_AGENT");
+		if (!agent)
+			agent = GIT_USER_AGENT;
+	}
+
+	return agent;
+}
+
+const char *git_user_agent_sanitized(void)
+{
+	static const char *agent = NULL;
+
+	if (!agent) {
+		struct strbuf buf = STRBUF_INIT;
+		int i;
+
+		strbuf_addstr(&buf, git_user_agent());
+		strbuf_trim(&buf);
+		for (i = 0; i < buf.len; i++) {
+			if (buf.buf[i] <= 32 || buf.buf[i] >= 127)
+				buf.buf[i] = '.';
+		}
+		agent = buf.buf;
+	}
+
+	return agent;
+}