From 2a64d4c8b02138015335b3bff7e360bc9b4f1519 Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Tue, 13 Apr 2021 00:18:13 +0200
Subject: [PATCH] reformat_cpp.sh: run inside Docker image if clang-format is
 not at version 10

---
 scripts/proj_clang_format/Dockerfile | 5 +++++
 scripts/reformat_cpp.sh              | 8 ++++++++
 2 files changed, 13 insertions(+)
 create mode 100644 scripts/proj_clang_format/Dockerfile

diff --git a/scripts/proj_clang_format/Dockerfile b/scripts/proj_clang_format/Dockerfile
new file mode 100644
index 0000000000..c6bff10aa3
--- /dev/null
+++ b/scripts/proj_clang_format/Dockerfile
@@ -0,0 +1,5 @@
+# 3.12 for clang-format-10
+FROM alpine:3.12
+
+RUN apk add --no-cache clang
+
diff --git a/scripts/reformat_cpp.sh b/scripts/reformat_cpp.sh
index 89237b6555..4c2dab1911 100755
--- a/scripts/reformat_cpp.sh
+++ b/scripts/reformat_cpp.sh
@@ -15,6 +15,14 @@ esac
 
 TOPDIR="$SCRIPT_DIR/.."
 
+if ! (clang-format --version 2>/dev/null | grep 10 >/dev/null); then
+    echo "clang-format 10 not available. Running it from a Docker image";
+    docker build -t proj_clang_format -f "$TOPDIR"/scripts/proj_clang_format/Dockerfile "$TOPDIR"/scripts/proj_clang_format
+    UID=$(id -u "${USER}")
+    GID=$(id -g "${USER}")
+    exec docker run --rm -u "$UID:$GID" -v "$TOPDIR":"$TOPDIR" proj_clang_format "$TOPDIR"/scripts/reformat_cpp.sh
+fi
+
 for i in "$TOPDIR"/include/proj/*.hpp "$TOPDIR"/include/proj/internal/*.hpp \
          "$TOPDIR"/src/iso19111/*.cpp \
          "$TOPDIR"/src/iso19111/operation/*.cpp \