[fish] first go at jj prompt

1 files changed, 39 insertions, 0 deletions

diff --git a/fish/functions/fish_jj_prompt.fish b/fish/functions/fish_jj_prompt.fish
new file mode 100644
index 0000000..7ab024e
--- /dev/null
+++ b/fish/functions/fish_jj_prompt.fish
@@ -0,0 +1,39 @@
+function fish_jj_prompt --description 'Write out the jj prompt'
+    if not command -sq jj
+        return 1
+    end
+
+    if not jj root --quiet &>/dev/null
+        return 1
+    end
+
+    jj log --ignore-working-copy --no-graph --color always -r @ -T '
+        surround(
+            " (",
+            ")",
+            separate(
+                " ",
+                bookmarks.join(", "),
+                if(empty, "∅"),
+                coalesce(
+                    surround(
+                        "\"",
+                        "\"",
+                        if(
+                            description.first_line().substr(0, 12).starts_with(description.first_line()),
+                            description.first_line().substr(0, 12),
+                            description.first_line().substr(0, 11) ++ "…"
+                        )
+                    ),
+                    label("description placeholder", "?")
+                ),
+                "|",
+                change_id.shortest(),
+                commit_id.shortest(),
+                if(conflict, "X"),
+                if(divergent, "☇"),
+                if(hidden, "⬚"),
+            )
+        )
+    ' 2>/dev/null
+end