Merge pull request 'Add compilation benchmark, move scripts into subfolder' (#158) from compilation-benchmark into move_views_to_diesel

Reviewed-on: https://yerbamate.ml/LemmyNet/lemmy/pulls/158

clean.sh

@@ -1,7 +0,0 @@
-#!/bin/sh
-
-cargo update
-cargo fmt
-cargo check
-cargo clippy
-cargo outdated -R

scripts/compilation_benchmark.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+set -e
+
+times=3
+duration=0
+for ((i=0; i < times; i++)) ; do
+    echo "Starting iteration $i"
+    echo "cargo clean"
+    # to benchmark incremental compilation time, do a full build with the same compiler version first,
+    # and use the following clean command:
+    #cargo clean -p lemmy_utils
+    cargo clean
+    echo "cargo build"
+    start=$(date +%s.%N)
+    RUSTC_WRAPPER='' cargo +1.47.0 build -q
+    end=$(date +%s.%N)
+    echo "Finished iteration $i after $(bc <<< "scale=0; $end - $start") seconds"
+    duration=$(bc <<< "$duration + $end - $start")
+done
+
+average=$(bc <<< "scale=0; $duration / $times")
+
+echo "Average compilation time over $times runs is $average seconds"