From 904cec3c4a329cf89fc3219d359239910d61f3f6 Mon Sep 17 00:00:00 2001
From: thing1 <thing1@seacrossedlovers.xyz>
Date: Tue, 28 Jan 2025 09:14:32 +0000
Subject: init commit

---
 autoload/tools/rust/racer.kak | 123 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 autoload/tools/rust/racer.kak

(limited to 'autoload/tools/rust/racer.kak')

diff --git a/autoload/tools/rust/racer.kak b/autoload/tools/rust/racer.kak
new file mode 100644
index 0000000..ed85e3c
--- /dev/null
+++ b/autoload/tools/rust/racer.kak
@@ -0,0 +1,123 @@
+hook -once global BufSetOption filetype=rust %{
+    require-module racer
+}
+
+provide-module racer %{
+
+declare-option -hidden str racer_tmp_dir
+declare-option -hidden completions racer_completions
+
+define-command racer-complete -docstring "Complete the current selection with racer" %{
+    evaluate-commands %sh{
+        dir=$(mktemp -d "${TMPDIR:-/tmp}"/kak-racer.XXXXXXXX)
+        printf %s\\n "set-option buffer racer_tmp_dir ${dir}"
+        printf %s\\n "evaluate-commands -no-hooks %{ write ${dir}/buf }"
+    }
+    evaluate-commands %sh{
+        dir=${kak_opt_racer_tmp_dir}
+        (
+            trap - INT QUIT
+            cursor="${kak_cursor_line} $((${kak_cursor_column} - 1))"
+            racer_data=$(racer --interface tab-text complete-with-snippet ${cursor} ${kak_buffile} ${dir}/buf)
+            compl=$(printf %s\\n "${racer_data}" | awk '
+                BEGIN { FS = "\t"; ORS = " " }
+                /^PREFIX/ {
+                    column = ENVIRON["kak_cursor_column"] + $2 - $3
+                    print ENVIRON["kak_cursor_line"] "." column "@@" ENVIRON["kak_timestamp"]
+                }
+                /^MATCH/ {
+                    word = $2
+                    desc = substr($9, 2, length($9) - 2)
+                    gsub(/\|/, "\\|", desc)
+                    gsub(/\\n/, "\n", desc)
+                    gsub(/!/, "!!", desc)
+                    info = $8
+                    gsub(/\|/, "\\|", info)
+
+                    candidate = word "|info -style menu %!" desc "!|" word " {MenuInfo}" info
+
+                    gsub(/@/, "@@", candidate)
+                    gsub(/~/, "~~", candidate)
+                    print "%~" candidate "~"
+                }'
+            )
+            printf %s\\n "evaluate-commands -client '${kak_client}' %@ set-option 'buffer=${kak_bufname}' racer_completions ${compl%?} @" | kak -p ${kak_session}
+            rm -r ${dir}
+        ) > /dev/null 2>&1 < /dev/null &
+    }
+}
+
+define-command racer-enable-autocomplete -docstring "Add racer completion candidates to the completer" %{
+    set-option window completers option=racer_completions %opt{completers}
+    hook window -group racer-autocomplete InsertIdle .* %{ try %{
+        execute-keys -draft <a-h><a-k>([\w\.]|::).\z<ret>
+        racer-complete
+    } }
+    alias window complete racer-complete
+}
+
+define-command racer-disable-autocomplete -docstring "Disable racer completion" %{
+    evaluate-commands %sh{ printf "set-option window completers %s\n" $(printf %s "${kak_opt_completers}" | sed -e "s/'option=racer_completions'//g") }
+    remove-hooks window racer-autocomplete
+    unalias window complete racer-complete
+}
+
+define-command racer-go-definition -docstring "Jump to where the rust identifier below the cursor is defined" %{
+    evaluate-commands %sh{
+        dir=$(mktemp -d "${TMPDIR:-/tmp}"/kak-racer.XXXXXXXX)
+        printf %s\\n "set-option buffer racer_tmp_dir ${dir}"
+        printf %s\\n "evaluate-commands -no-hooks %{ write ${dir}/buf }"
+    }
+    evaluate-commands %sh{
+        dir=${kak_opt_racer_tmp_dir}
+        cursor="${kak_cursor_line} $((${kak_cursor_column} - 1))"
+        racer_data=$(racer --interface tab-text  find-definition ${cursor} "${kak_buffile}" "${dir}/buf" | head -n 1)
+
+        racer_match=$(printf %s\\n "$racer_data" | cut -f1 )
+        if [ "$racer_match" = "MATCH" ]; then
+          racer_line=$(printf %s\\n "$racer_data" | cut -f3 )
+          racer_column=$(printf %s\\n "$racer_data" | cut -f4 )
+          racer_file=$(printf %s\\n "$racer_data" | cut -f5 )
+          printf %s\\n "edit -existing '$racer_file' $racer_line $racer_column"
+          case ${racer_file} in
+            "${RUST_SRC_PATH}"* | "${CARGO_HOME:-$HOME/.cargo}"/registry/src/*)
+              printf %s\\n "set-option buffer readonly true";;
+          esac
+        else
+          printf %s\\n "echo -debug 'racer could not find a definition'"
+        fi
+    }
+}
+
+define-command racer-show-doc -docstring "Show the documentation about the rust identifier below the cursor" %{
+    evaluate-commands %sh{
+        dir=$(mktemp -d "${TMPDIR:-/tmp}"/kak-racer.XXXXXXXX)
+        printf %s\\n "set-option buffer racer_tmp_dir ${dir}"
+        printf %s\\n "evaluate-commands -no-hooks %{ write ${dir}/buf }"
+    }
+    evaluate-commands %sh{
+        dir=${kak_opt_racer_tmp_dir}
+        cursor="${kak_cursor_line} ${kak_cursor_column}"
+        racer_data=$(racer --interface tab-text  complete-with-snippet  ${cursor} "${kak_buffile}" "${dir}/buf" | sed -n 2p )
+        racer_match=$(printf %s\\n "$racer_data" | cut -f1)
+        if [ "$racer_match" = "MATCH" ]; then
+          racer_doc=$(
+            printf %s\\n "$racer_data" |
+            cut -f9  |
+            sed -e '
+
+              # Remove leading and trailing quotes
+              s/^"\(.*\)"$/\1/g
+
+              # Escape all @ so that it can be properly used in the string expansion
+              s/@/\\@/g
+
+            ')
+          printf "info %%@$racer_doc@"
+        else
+          printf %s\\n "echo -debug 'racer could not find a definition'"
+        fi
+    }
+}
+
+}
-- 
cgit v1.2.3