From aa56aa23030e9f8680d5ef366f2bd72fd342c14f Mon Sep 17 00:00:00 2001
From: NRK <nrk@disroot.org>
Date: Fri, 7 Oct 2022 15:37:44 +0200
Subject: [ci]: try building all combination with tcc (#338)

this will hopefully catch issues like [337] in the future.

not using gcc and/or clang since we have 5 build options right now,
which means 2^5 = 32 different combination. using gcc/clang would take
too much resources and time; meanwhile tcc is lightning fast.

[337]: https://codeberg.org/nsxiv/nsxiv/pulls/337

Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/338
Reviewed-by: eylles <eylles@noreply.codeberg.org>
---
 .github/workflows/build.yml      | 10 ++++++----
 etc/woodpecker/build.yml         |  8 +++++---
 etc/woodpecker/try-all-builds.sh | 38 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 49 insertions(+), 7 deletions(-)
 create mode 100755 etc/woodpecker/try-all-builds.sh

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 69d9270..50ddebf 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -15,20 +15,22 @@ jobs:
         sudo apt-get update
         sudo apt-get install libimlib2 libimlib2-dev xserver-xorg-core xserver-xorg-dev \
                              libxft2 libxft-dev libexif12 libexif-dev \
-                             gcc clang git
+                             gcc clang git bc
         TCC_SHA="027b8fb9b88fe137447fb8bb1b61079be9702472"
         wget "https://github.com/TinyCC/tinycc/archive/${TCC_SHA}.tar.gz" && tar xzf "${TCC_SHA}.tar.gz"
-        ( cd "tinycc-$TCC_SHA" && ./configure && make && sudo make install; )
+        ( cd "tinycc-$TCC_SHA" && ./configure && make -j"$(nproc)" && sudo make install; )
     - name: build
       run: |
         CFLAGS="$(sed '/^#/d' etc/woodpecker/CFLAGS | paste -d ' ' -s)"
         build () {
-          for cc in "gcc" "clang" "tcc"; do
+          for cc in "gcc" "clang"; do
             echo "### $cc - $2 build ###"
             make clean && make -s -j"$(nproc)" CC="$cc" CFLAGS="$CFLAGS" LDFLAGS="$CFLAGS" OPT_DEP_DEFAULT="$1"
           done
         }
-        # full-build #
+        # try all combination with tcc #
+        etc/woodpecker/try-all-builds.sh
+        # full-build with gcc and clang #
         build "1" "full"
         # ensure minimal-build works without opt deps installed
         sudo apt-get remove libxft2 libxft-dev libexif12 libexif-dev >/dev/null
diff --git a/etc/woodpecker/build.yml b/etc/woodpecker/build.yml
index 603fa0e..eced0d1 100644
--- a/etc/woodpecker/build.yml
+++ b/etc/woodpecker/build.yml
@@ -10,18 +10,20 @@ pipeline:
       apk add --no-cache \
           imlib2 imlib2-dev xorgproto \
           libxft libxft-dev libexif libexif-dev giflib giflib-dev libwebp libwebp-dev \
-          gcc clang llvm llvm-dev build-base wget ca-certificates >/dev/null
+          gcc clang llvm llvm-dev build-base wget ca-certificates bc >/dev/null
       wget "https://github.com/TinyCC/tinycc/archive/$TCC_SHA.tar.gz" >/dev/null
       tar xzf "$TCC_SHA.tar.gz" >/dev/null
       ( cd "tinycc-$TCC_SHA" && ./configure --config-musl && make -s -j"$(nproc)" && make install; ) >/dev/null
       CFLAGS="$(sed '/^#/d' etc/woodpecker/CFLAGS | paste -d ' ' -s)"
       build () {
-        for cc in "gcc" "clang" "tcc"; do
+        for cc in "gcc" "clang"; do
           echo "### $cc - $2 build ###"
           make clean && make -s -j"$(nproc)" CC="$cc" CFLAGS="$CFLAGS" LDFLAGS="$CFLAGS" OPT_DEP_DEFAULT="$1"
         done
       }
-      # full-build #
+      # try all combination with tcc #
+      etc/woodpecker/try-all-builds.sh
+      # full-build with gcc and clang #
       build "1" "full"
       # ensure minimal-build works without opt deps installed
       apk del libxft libxft-dev libexif libexif-dev giflib giflib-dev libwebp libwebp-dev >/dev/null
diff --git a/etc/woodpecker/try-all-builds.sh b/etc/woodpecker/try-all-builds.sh
new file mode 100755
index 0000000..89e41f1
--- /dev/null
+++ b/etc/woodpecker/try-all-builds.sh
@@ -0,0 +1,38 @@
+#!/bin/sh
+#
+# Shell script that checks for all possible build combination with TCC.
+# Usage: call the script while in the nsxiv root directory
+
+set -- $(grep -o '^HAVE_[[:alpha:]]* ' config.mk)
+CFLAGS="$(sed '/^#/d' etc/woodpecker/CFLAGS | paste -d ' ' -s)"
+z=$(echo "2 ^ $#" | bc)
+
+print_opt_name() {
+    shift "$(( $1 + 1 ))"
+    printf "%s=" "$1"
+}
+
+print_opt_arg() {
+    bn=$(echo "$1 / (2 ^ $2)" | bc)
+    printf "%d " $(( bn % 2 ))
+}
+
+n=0
+while [ "$n" -lt "$z" ]; do
+    i=0
+    while [ "$i" -lt "$#" ]; do
+        print_opt_name "$i" "$@"
+        print_opt_arg "$n" "$i"
+        i=$((i + 1))
+    done | tee "/dev/stderr" | (
+        make clean
+        if ! xargs make -j"$(nproc)" CC=tcc CFLAGS="$CFLAGS" LDFLAGS="$CFLAGS"; then
+            echo "[FAILED]" >&2
+            exit 1
+        else
+            echo "[SUCCESS]" >&2
+        fi
+    )
+    [ "$?" -ne 0 ] && exit "$?"
+    n=$((n + 1))
+done >/dev/null
-- 
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