1 files changed, 37 insertions, 0 deletions
diff --git a/.config/shell/zsh-fast-syntax-highlighting/.fast-run-command b/.config/shell/zsh-fast-syntax-highlighting/.fast-run-command
new file mode 100644
index 0000000..e251bcc
--- /dev/null
+++ b/.config/shell/zsh-fast-syntax-highlighting/.fast-run-command
@@ -0,0 +1,37 @@
+# -*- mode: sh; sh-indentation: 4; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
+# Copyright (c) 2018 Sebastian Gniazdowski
+#
+# FAST_HIGHLIGHT hash serves as container for variables that
+# prevents creating them in global scope. (P) flag is not used,
+# output array is fixed (__lines_list).
+#
+# $1 - the command, e.g. "git remote"; 2>/dev/null redirection is
+#      added automatically
+# $2 - FAST_HIGHLIGHT field name, e.g. "chroma-git-branches"; two
+#      additional fields will be used, $2-cache, $2-cache-born-at
+# $3 - what to remove from beginning of the lines returned by the
+#      command
+# $4 - cache validity time, default 5 (seconds)
+#
+# Output: array __lines_list, with output of the command ran
+
+# User should not forget to define this array, the below code
+# will only ensure that it's array (can also define a global)
+typeset -ga __lines_list
+local -a __response
+
+if [[ -z "${FAST_HIGHLIGHT[$2-cache]}" || $(( EPOCHSECONDS - FAST_HIGHLIGHT[$2-cache-born-at] )) -gt ${4:-5} ]]; then
+    FAST_HIGHLIGHT[$2-cache-born-at]="$EPOCHSECONDS"
+    __response=( ${${(f)"$(command ${(Qz)1#+} 2>/dev/null)"}#${~3}} )
+    [[ "$1" = "+"* ]] && __lines_list+=( "${__response[@]}" ) || __lines_list=( "${__response[@]}" )
+    FAST_HIGHLIGHT[$2-cache]="${(j:;:)__response}"
+else
+    # Quoted (s:;:) flag without @ will skip empty elements. It
+    # still produces array output, interesingly. All this is for
+    # the trailing ";" above, to skip last, empty element.
+    [[ "$1" = "+"* ]] && \
+        __lines_list+=( "${(@s:;:)FAST_HIGHLIGHT[$2-cache]}" ) || \
+        __lines_list=( "${(@s:;:)FAST_HIGHLIGHT[$2-cache]}" )
+fi
+
+# vim:ft=zsh:et:sw=4