Fix CI: adapt to libKriging .travis-ci/ → tools/ rename

The libKriging submodule (PR#314) renamed .travis-ci/ to tools/.
This broke the R package build because tools/build.sh could not
find the CI scripts directory.

Changes:
- tools/build.sh: detect tools/common (new) before falling back
  to travis-ci (legacy) for CI scripts directory
- tools/setup.sh: only run .travis-ci rename+sed when directory
  actually exists; skip cleanly for new layout
- install_github.yml: install remotes alongside devtools, since
  devtools 2.5.0 requires it for install_github()

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: yannrichet

.github/workflows/install_github.yml

@@ -62,7 +62,7 @@ jobs:
           fi
           # Add --insecure to workaround missing certificates on Windows
           curl --insecure --header 'authorization: Bearer ${{ secrets.GITHUB_TOKEN }}' -LO "https://raw.githubusercontent.com/libKriging/rlibkriging/${REF}/tools/install_packages.R"
-          Rscript --no-save ./install_packages.R devtools
+          Rscript --no-save ./install_packages.R remotes devtools
 
       - name: install_github (with tag)
         if: github.ref_type == 'tag'

tools/build.sh

@@ -20,9 +20,14 @@ if test -z "${R_HOME}"; then
    as_fn_error $? "Could not determine R_HOME." "$LINENO" 5
 fi
 
-# Static libKriging build (using libK/.ci)
+# Static libKriging build (using libK CI scripts)
 cd src/libK
-CI=`ls -a | grep travis-ci`
+# Find CI scripts directory: 'tools' (new name since libKriging PR#314), or '.travis-ci'/'travis-ci' (legacy)
+if [ -d tools/common ]; then
+  CI=tools
+else
+  CI=`ls -a | grep travis-ci`
+fi
 echo "CI: "$CI
 
 {
@@ -73,7 +78,7 @@ fi
 BUILD_TEST=false \
 MODE=Release \
 EXTRA_CMAKE_OPTIONS="${EXTRA_CMAKE_OPTIONS:-} -DCMAKE_INSTALL_LIBDIR=lib -DBUILD_SHARED_LIBS=${MAKE_SHARED_LIBS} -DSTATIC_LIB=${STATIC_LIB} -DEXTRA_SYSTEM_LIBRARY_PATH=${EXTRA_SYSTEM_LIBRARY_PATH}" \
-$CI/linux-macos/build.sh # should support '.travis-ci' or 'travis-ci'"
+$CI/linux-macos/build.sh
 
 # Clean up CMake temp directories immediately after build
 find /tmp -maxdepth 1 -name "tmp.*" -type d -user $(id -u) -mmin -10 2>/dev/null | while read dir; do

tools/setup.sh

@@ -233,10 +233,12 @@ echo "Renaming hidden files for CRAN compliance..."
 if [ -d $LIBKRIGING_SRC_PATH/.travis-ci ]; then
   echo "  → Renaming .travis-ci to travis-ci..."
   mv $LIBKRIGING_SRC_PATH/.travis-ci $LIBKRIGING_SRC_PATH/travis-ci
+  # rename .travis-ci in travis-ci everywhere. Use temp .bak for sed OSX compliance
+  echo "  → Updating .travis-ci references in shell scripts..."
+  find $LIBKRIGING_SRC_PATH -type f -name *.sh -exec sed -i.bak "s/\.travis-ci/travis-ci/g" {} +
+else
+  echo "  ✓ No .travis-ci directory (already renamed to tools/)"
 fi
-# rename .travis-ci in travis-ci everywhere. Use temp .bak for sed OSX compliance
-echo "  → Updating .travis-ci references in shell scripts..."
-find $LIBKRIGING_SRC_PATH -type f -name *.sh -exec sed -i.bak "s/\.travis-ci/travis-ci/g" {} +
 echo "  → Removing git rev-parse dependencies..."
 # remove usages of 'git rev-parse', which is not a standard requirement fo R
 GIT_ROOT=$(pwd);