build: Respect contributor's own GIMP_PREFIX

This makes the scripts less pervasive locally.

build/linux/appimage/bundle-gimp-appimage.sh

@@ -21,7 +21,9 @@ BUILD_ARTIF=$(echo _build*)
 ## This script is "filesystem-agnostic". The packager can quickly choose either
 ## putting everything in /usr or in AppDir(root) just specifying the 2nd parameter.
 GIMP_DISTRIB="$CI_PROJECT_DIR/build/linux/appimage/AppDir"
-GIMP_PREFIX="$GIMP_DISTRIB/usr"
+if [ "$GITLAB_CI" ] || [ -z "$GIMP_PREFIX" ]; then
+  GIMP_PREFIX="$GIMP_DISTRIB/usr"
+fi
 if [ -z "$2" ] || [ "$2" = "usr" ]; then
   OPT_PREFIX="${GIMP_PREFIX}"
 elif [ "$2" = "AppDir" ]; then

build/linux/flatpak/1_build-deps-flatpak.sh

@@ -11,7 +11,9 @@ if [ -z "$GITLAB_CI" ]; then
     exit 1
   fi
   flatpak update -y
-  export GIMP_PREFIX="$PWD/../_install-$ARCH"
+  if [ -z "$GIMP_PREFIX" ]; then
+    export GIMP_PREFIX="$PWD/../_install-$ARCH"
+  fi
   if [ ! -d "$GIMP_PREFIX" ]; then
     mkdir -p "$GIMP_PREFIX"
   fi

build/linux/flatpak/2_build-gimp-flatpak.sh

@@ -12,7 +12,9 @@ if [ -z "$GITLAB_CI" ] && [ "$1" != '--ci' ]; then
   fi
   git submodule update --init
   flatpak update -y
-  export GIMP_PREFIX="$PWD/../_install-$ARCH"
+  if [ -z "$GIMP_PREFIX" ]; then
+    export GIMP_PREFIX="$PWD/../_install-$ARCH"
+  fi
 
 
   # Build GIMP only

build/windows/gitlab-ci/1_build-deps-msys2.sh

@@ -81,7 +81,12 @@ clone_or_pull gegl
 
 
 # Build babl and GEGL
-export GIMP_PREFIX="`realpath ./_install`${ARTIFACTS_SUFFIX}"
+# We need to create the condition this ugly way to not break CI
+if [ "$GITLAB_CI" ]; then
+  export GIMP_PREFIX="$PWD/_install${ARTIFACTS_SUFFIX}"
+elif [ -z "$GITLAB_CI" ] && [ -z "$GIMP_PREFIX" ]; then
+  export GIMP_PREFIX="$PWD/_install${ARTIFACTS_SUFFIX}"
+fi
 ## Universal variables from .gitlab-ci.yml
 IFS=$'\n' VAR_ARRAY=($(cat ${GIMP_DIR}.gitlab-ci.yml | sed -n '/export PATH=/,/GI_TYPELIB_PATH}\"/p' | sed 's/    - //'))
 IFS=$' \t\n'

build/windows/gitlab-ci/2_build-gimp-msys2.sh

@@ -20,7 +20,6 @@ if [ -z "$GITLAB_CI" ]; then
   fi
   git submodule update --init --force
   pacman --noconfirm -Suy
-  PARENT_DIR='../'
   export MESON_OPTIONS="-Drelocatable-bundle=no"
 fi
 
@@ -32,7 +31,12 @@ echo "$(cat build/windows/gitlab-ci/1_build-deps-msys2.sh |
 
 
 # Build GIMP
-export GIMP_PREFIX="$PWD/${PARENT_DIR}_install${ARTIFACTS_SUFFIX}"
+# We need to create the condition this ugly way to not break CI
+if [ "$GITLAB_CI" ]; then
+  export GIMP_PREFIX="$PWD/_install${ARTIFACTS_SUFFIX}"
+elif [ -z "$GITLAB_CI" ] && [ -z "$GIMP_PREFIX" ]; then
+  export GIMP_PREFIX="$PWD/../_install${ARTIFACTS_SUFFIX}"
+fi
 ## Universal variables from .gitlab-ci.yml
 IFS=$'\n' VAR_ARRAY=($(cat .gitlab-ci.yml | sed -n '/export PATH=/,/GI_TYPELIB_PATH}\"/p' | sed 's/    - //'))
 IFS=$' \t\n'

build/windows/gitlab-ci/3_bundle-gimp-uni_base.sh

@@ -29,7 +29,11 @@ if [[ "$CI_JOB_NAME" =~ "cross" ]]; then
   export GIMP_PREFIX="`realpath ./_install`${ARTIFACTS_SUFFIX}-cross"
   export MSYS_PREFIX="$GIMP_PREFIX"
 else
-  export GIMP_PREFIX="`realpath ./_install`${ARTIFACTS_SUFFIX}"
+  if [ "$GITLAB_CI" ]; then
+    export GIMP_PREFIX="$PWD/_install${ARTIFACTS_SUFFIX}"
+  elif [ -z "$GITLAB_CI" ] && [ -z "$GIMP_PREFIX" ]; then
+    export GIMP_PREFIX="$PWD/../_install${ARTIFACTS_SUFFIX}"
+  fi
   export MSYS_PREFIX="$MSYSTEM_PREFIX"
 fi
 export GIMP_DISTRIB="`realpath ./gimp`${ARTIFACTS_SUFFIX}"