build: Rework CI and move all bundling into new build target. (#6556)

* build: Rework CI and move all bundling into new build target.

* ci: Use "mingw" in msys2 release names for compatibility.

* ci: Use "osx" in macOS release names for compatibility.

* ci: Disable macOS upload.

Will be moved to a separate PR for canary merge.

.ci/pack.sh

@@ -0,0 +1,48 @@
+#!/bin/bash -ex
+
+GITDATE="`git show -s --date=short --format='%ad' | sed 's/-//g'`"
+GITREV="`git show -s --format='%h'`"
+REV_NAME="citra-${OS}-${TARGET}-${GITDATE}-${GITREV}"
+
+# Find out what release we are building
+if [[ "$GITHUB_REF_NAME" =~ ^canary- ]] || [[ "$GITHUB_REF_NAME" =~ ^nightly- ]]; then
+    RELEASE_NAME=$(echo $GITHUB_REF_NAME | cut -d- -f1)
+    # For compatibility with existing installs, use mingw/osx in the archive and target names.
+    if [ "$TARGET" = "msys2" ]; then
+        REV_NAME="citra-${OS}-mingw-${GITDATE}-${GITREV}"
+        RELEASE_NAME="${RELEASE_NAME}-mingw"
+    elif [ "$OS" = "macos" ]; then
+        REV_NAME="citra-osx-${TARGET}-${GITDATE}-${GITREV}"
+    fi
+else
+    RELEASE_NAME=head
+fi
+
+mkdir -p artifacts
+
+if [ -z "${UPLOAD_RAW}" ]; then
+    # Archive and upload the artifacts.
+    mkdir "$REV_NAME"
+    mv build/bundle/* "$REV_NAME"
+
+    if [ "$OS" = "windows" ]; then
+        ARCHIVE_NAME="${REV_NAME}.zip"
+        powershell Compress-Archive "$REV_NAME" "$ARCHIVE_NAME"
+    else
+        ARCHIVE_NAME="${REV_NAME}.tar.gz"
+        tar czvf "$ARCHIVE_NAME" "$REV_NAME"
+    fi
+
+    mv "$REV_NAME" $RELEASE_NAME
+    7z a "$REV_NAME.7z" $RELEASE_NAME
+
+    mv "$ARCHIVE_NAME" artifacts/
+    mv "$REV_NAME.7z" artifacts/
+else
+    # Directly upload the raw artifacts, renamed with the revision.
+    for ARTIFACT in build/bundle/*; do
+        FILENAME=$(basename "$ARTIFACT")
+        EXTENSION="${FILENAME##*.}"
+        mv "$ARTIFACT" "artifacts/$REV_NAME.$EXTENSION"
+    done
+fi