From d536183f08b91decdb000d85b529103bb633b86b Mon Sep 17 00:00:00 2001
From: Sixu Hu <husixu1@hotmail.com>
Date: Fri, 24 Mar 2023 20:54:07 +0800
Subject: [PATCH] added benchmarks

---
 benchmark/.gitignore   |  3 ++
 benchmark/benchmark.sh | 70 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 73 insertions(+)
 create mode 100644 benchmark/.gitignore
 create mode 100755 benchmark/benchmark.sh

diff --git a/benchmark/.gitignore b/benchmark/.gitignore
new file mode 100644
index 0000000..b272db9
--- /dev/null
+++ b/benchmark/.gitignore
@@ -0,0 +1,3 @@
+*
+!.gitignore
+!benchmark.sh
diff --git a/benchmark/benchmark.sh b/benchmark/benchmark.sh
new file mode 100755
index 0000000..24da104
--- /dev/null
+++ b/benchmark/benchmark.sh
@@ -0,0 +1,70 @@
+#!/bin/bash
+
+THISDIR="$(cd "$(dirname "$(realpath "${BASH_SOURCE[0]}")")" && pwd)"
+
+DEPS=(hyperfine curl)
+for dep in "${DEPS[@]}"; do
+    command -v "$dep" >/dev/null 2>&1 || {
+        echo "'$dep' required but not found" >&2
+        exit 1
+    }
+done
+
+pushd "${THISDIR}" >/dev/null || exit 1
+{
+    # Download other template engines -----------------------------------------
+    [[ -e mo ]] || {
+        echo "Downloading mo ..."
+        curl -SL https://git.io/get-mo -o mo &&
+            chmod +x mo
+    } || exit 1
+
+    [[ -e bash-tpl ]] || {
+        echo "Downloading bash-tpl ..."
+        curl -SL https://github.com/TekWizely/bash-tpl/releases/download/v0.7.0/bash-tpl -o bash-tpl &&
+            chmod +x bash-tpl
+    } || exit 1
+
+    [[ -e renderest ]] || {
+        echo "Downloading renderest ..."
+        curl -SL https://raw.githubusercontent.com/relaxdiego/renderest/master/render -o renderest &&
+            chmod +x renderest
+    }
+
+    [[ -e shtpl ]] || {
+        echo "Downloading shtpl ..."
+        curl -SL https://raw.githubusercontent.com/mlorenzo-stratio/shtpl/main/shtpl -o shtpl &&
+            chmod +x shtpl
+    }
+
+    ln -sf ../bpt.sh bpt.sh
+
+    # Prepare test files ------------------------------------------------------
+    echo "aaa" >|"0vars.tpl"
+    { echo -n 'echo ' && for _ in {1..1000}; do echo -n "\${var}"; done; } >|"1000vars.sh"
+    for _ in {1..1000}; do echo -n "\$var"; done >|"1000vars.shtpl"
+    for _ in {1..1000}; do echo -n "{{var}}"; done >|"1000vars.tpl"
+    for _ in {1..1000}; do echo -n "<%\$var%>"; done >|"1000vars.bash-tpl"
+
+    # Benchmark ---------------------------------------------------------------
+    hyperfine \
+        --runs 10 --warmup 2 \
+        --export-markdown result-0vars.md \
+        "bash -c 'echo \"aaa\"'" \
+        "./shtpl 0vars.tpl" \
+        "./renderest 0vars.tpl" \
+        ". <(./bash-tpl 0vars.tpl)" \
+        "./mo 0vars.tpl" \
+        "./bpt.sh ge 0vars.tpl"
+
+    hyperfine \
+        --runs 10 --warmup 2 \
+        --export-markdown result-1000vars.md \
+        "var=a bash 1000vars.sh" \
+        "var=a ./shtpl < 1000vars.shtpl" \
+        "var=a ./renderest 1000vars.tpl" \
+        "var=a . <(./bash-tpl 1000vars.bash-tpl)" \
+        "var=a ./mo 1000vars.tpl" \
+        "var=a ./bpt.sh ge 1000vars.tpl"
+}
+popd >/dev/null || exit 1