1 files changed, 74 insertions, 0 deletions
diff --git a/vendor/gix-refspec/src/write.rs b/vendor/gix-refspec/src/write.rs
new file mode 100644
index 000000000..74c71c6e1
--- /dev/null
+++ b/vendor/gix-refspec/src/write.rs
@@ -0,0 +1,74 @@
+use bstr::BString;
+
+use crate::{
+    instruction::{Fetch, Push},
+    Instruction, RefSpecRef,
+};
+
+impl RefSpecRef<'_> {
+    /// Reproduce ourselves in parseable form.
+    pub fn to_bstring(&self) -> BString {
+        let mut buf = Vec::with_capacity(128);
+        self.write_to(&mut buf).expect("no io error");
+        buf.into()
+    }
+
+    /// Serialize ourselves in a parseable format to `out`.
+    pub fn write_to(&self, out: impl std::io::Write) -> std::io::Result<()> {
+        self.instruction().write_to(out)
+    }
+}
+
+impl Instruction<'_> {
+    /// Reproduce ourselves in parseable form.
+    pub fn to_bstring(&self) -> BString {
+        let mut buf = Vec::with_capacity(128);
+        self.write_to(&mut buf).expect("no io error");
+        buf.into()
+    }
+
+    /// Serialize ourselves in a parseable format to `out`.
+    pub fn write_to(&self, mut out: impl std::io::Write) -> std::io::Result<()> {
+        match self {
+            Instruction::Push(Push::Matching {
+                src,
+                dst,
+                allow_non_fast_forward,
+            }) => {
+                if *allow_non_fast_forward {
+                    out.write_all(&[b'+'])?;
+                }
+                out.write_all(src)?;
+                out.write_all(&[b':'])?;
+                out.write_all(dst)
+            }
+            Instruction::Push(Push::AllMatchingBranches { allow_non_fast_forward }) => {
+                if *allow_non_fast_forward {
+                    out.write_all(&[b'+'])?;
+                }
+                out.write_all(&[b':'])
+            }
+            Instruction::Push(Push::Delete { ref_or_pattern }) => {
+                out.write_all(&[b':'])?;
+                out.write_all(ref_or_pattern)
+            }
+            Instruction::Fetch(Fetch::Only { src }) => out.write_all(src),
+            Instruction::Fetch(Fetch::Exclude { src }) => {
+                out.write_all(&[b'^'])?;
+                out.write_all(src)
+            }
+            Instruction::Fetch(Fetch::AndUpdate {
+                src,
+                dst,
+                allow_non_fast_forward,
+            }) => {
+                if *allow_non_fast_forward {
+                    out.write_all(&[b'+'])?;
+                }
+                out.write_all(src)?;
+                out.write_all(&[b':'])?;
+                out.write_all(dst)
+            }
+        }
+    }
+}