From 790ce7e01f9d8fc86647424516b5dcb3a8be5cfd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Madeleine=20Sydney=20=C5=9Alaga?= <msyds@deertopia.net>
Date: Tue, 24 Feb 2026 10:43:43 -0700
Subject: [PATCH]

---
 doerg/src/net/deertopia/doerg/common.clj |  9 ++---
 doerg/src/net/deertopia/doerg/tex.clj    | 49 +++++++++++++++++++-----
 2 files changed, 42 insertions(+), 16 deletions(-)

diff --git a/doerg/src/net/deertopia/doerg/common.clj b/doerg/src/net/deertopia/doerg/common.clj
index ed5ed93..8cbdc1c 100644
--- a/doerg/src/net/deertopia/doerg/common.clj
+++ b/doerg/src/net/deertopia/doerg/common.clj
@@ -110,9 +110,9 @@
 (comment
   (let [out (ByteArrayOutputStream.)]
     (p/shell {:out (tee-output-stream
-                    out
-                    (l/log-stream :info "blah"))}
-             "echo" "hello" "worms")))
+                    out (l/log-stream :info "blah"))}
+             "echo" "hello\n" "worms")
+    (.toString out)))
 
 (defn invoke [opts & cmd]
   (l/info (str/join " " (cons "$" cmd)))
@@ -122,7 +122,4 @@
                         opts)
                  cmd)
         bin (first cmd)]
-    (l/infof "%s (stdout): %s" bin (:out r))
-    (l/infof "%s (stderr): %s" bin (:err r))
-    (l/infof "%s exited with status %s" bin (str (:exit r)))
     r))
diff --git a/doerg/src/net/deertopia/doerg/tex.clj b/doerg/src/net/deertopia/doerg/tex.clj
index 00ebacb..b25ddb1 100644
--- a/doerg/src/net/deertopia/doerg/tex.clj
+++ b/doerg/src/net/deertopia/doerg/tex.clj
@@ -2,7 +2,10 @@
   (:require [babashka.process :as p]
             [net.deertopia.doerg.common :as common]
             [clj-cbor.core :as cbor]
-            [clojure.java.io :as io]))
+            [clojure.java.io :as io]
+            [clojure.string :as str]
+            [clojure.tools.logging :as l])
+  (:import (java.io ByteArrayOutputStream)))
 
 ;;; XeLaTeX
 
@@ -13,15 +16,41 @@
 (def ^:private tightpage-regexp
   #"^Preview: Tightpage (-?[0-9]+)\s*(-?[0-9]+)\s*(-?[0-9]+)\s*(-?[0-9]+)")
 
+(def ^:private preview-end-regexp
+  #"(?:^Preview: Tightpage.*$)?\n! Preview: Snippet \d+ ended.\((\d+)\+(\d+)x(\d+)\)")
+
+(defn- invoke [extra-opts & args]
+  (let [namespace (or (::ns extra-opts)
+                      (first args))
+        out-stream (common/tee-output-stream
+                    (ByteArrayOutputStream.)
+                    (l/log-stream :info (str namespace "/out")))
+        err-stream (common/tee-output-stream
+                    (ByteArrayOutputStream.)
+                    (l/log-stream :info (str namespace "/err")))
+        opts (merge extra-opts
+                    {:out out-stream :err err-stream :continue true
+                     :shutdown p/destroy-tree
+                     :pre-start-fn (fn [{:keys [cmd]}]
+                                     (l/infof "$ %s"
+                                              (str/join " " cmd)))
+                     :exit-fn (fn [{:keys [cmd exit]}]
+                                (l/infof "%s exited w/ status %d"
+                                         (first cmd) exit))})
+        r (apply p/shell opts args)
+        out (.toString out-stream)]
+    (-> r
+        (assoc ::out out))))
+
 (defn- invoke-xelatex [& {:keys [file output-dir]}]
-  (let [{:keys [out]} (common/invoke
-                       {:dir output-dir}
-                       "xelatex" "-no-pdf" "-interaction" "nonstopmode"
-                       "-output-directory" output-dir file)
+  (let [{out ::out} (invoke
+                     {:dir output-dir}
+                     "xelatex" "-no-pdf" "-interaction" "nonstopmode"
+                     "-output-directory" output-dir file)
         [tp1 tp2 tp3 tp4] (->> (re-find tightpage-regexp out)
                                (drop 1)
                                (map parse-long))]
-    (->> (re-find-all preview-end-regexp out)
+    (->> (re-seq preview-end-regexp out)
          (map #(let [[d1 d2 d3] (map parse-long (drop 1 %))
                      depth (/ (- d2 tp2)
                               scale-divisor
@@ -29,11 +58,11 @@
                  {:depth depth
                   :height (+ depth
                              (/ (+ d1 tp4)
-                                tex-scale-divisor
-                                tex-fontsize))
+                                scale-divisor
+                                font-size))
                   :width (/ (+ d3 tp3 (- tp2))
-                            tex-scale-divisor
-                            tex-fontsize)})))))
+                            scale-divisor
+                            font-size)})))))
 
 
 ;;; Temml