sq: Warn about the CLI interface not being stable.

1 files changed, 5 insertions, 0 deletions

diff --git a/sq/src/sq.rs b/sq/src/sq.rs
index eef1e6dc..3a97bee0 100644
--- a/sq/src/sq.rs
+++ b/sq/src/sq.rs
@@ -237,6 +237,11 @@ pub struct Config {
 }
 
 fn main() -> Result<()> {
+    if term_size::dimensions_stdout().is_none() {
+        eprintln!("\nWARNING: sq does not have a stable CLI interface.  \
+                   Use with caution in scripts.\n");
+    }
+
     let policy = &mut P::new();
 
     let matches = sq_cli::build().get_matches();