Fail gix tag list when JSON is requested

Author: cruessler

gitoxide-core/src/repository/tag.rs

@@ -1,5 +1,7 @@
 use gix::bstr::{BStr, BString, ByteSlice};
 
+use crate::OutputFormat;
+
 #[derive(Eq, PartialEq, PartialOrd, Ord)]
 enum VersionPart {
     String(BString),
@@ -41,7 +43,11 @@ impl Version {
     }
 }
 
-pub fn list(repo: gix::Repository, out: &mut dyn std::io::Write) -> anyhow::Result<()> {
+pub fn list(repo: gix::Repository, out: &mut dyn std::io::Write, format: OutputFormat) -> anyhow::Result<()> {
+    if format != OutputFormat::Human {
+        anyhow::bail!("JSON output isn't supported");
+    }
+
     let platform = repo.references()?;
 
     let mut tags: Vec<_> = platform

src/plumbing/main.rs

@@ -1312,7 +1312,7 @@ pub fn main() -> Result<()> {
                 progress,
                 progress_keep_open,
                 None,
-                move |_progress, out, _err| core::repository::tag::list(repository(Mode::Lenient)?, out),
+                move |_progress, out, _err| core::repository::tag::list(repository(Mode::Lenient)?, out, format),
             ),
         },
         Subcommands::Tree(cmd) => match cmd {