From 70c87619ee9ca7d037720b7bd1b9652c098d7a5e Mon Sep 17 00:00:00 2001
From: Dave Beckett <dave@dajobe.org>
Date: Sun, 6 Sep 2020 15:36:02 -0700
Subject: Move to bison 3.4+

---
 scripts/install-bison3.sh | 72 ++++++++++++++++++++++++++++++++---------------
 1 file changed, 50 insertions(+), 22 deletions(-)

(limited to 'scripts')

diff --git a/scripts/install-bison3.sh b/scripts/install-bison3.sh
index 3f2f133a..9eaebb2b 100755
--- a/scripts/install-bison3.sh
+++ b/scripts/install-bison3.sh
@@ -1,36 +1,64 @@
 #!/bin/sh
-# Helper script to install bison 3 (primarily for travis CI)
+# Helper script to install bison 3 into system via SUDO
+#
+# This is primarily for travis CI
 
 set -x
 
-PACKAGE=bison
-MIN_VERSION=3.0.0
-INSTALL_VERSION=3.0.5
 
-# Bison requires that CC is a C compiler
-CC=cc
-export CC
+# Binary that is installed that should be checked for version
+program_name=${BISON:-bison}
+# Name of package - will be tarball prefix
+package_name=${PACKAGE:-bison}
+
+
+########### Should be generic for any GNU package below here  ########
+
+package_ucname=$(echo "${package_name}" | tr '[:lower:]' '[:upper:]')
+package_min_version=$(awk -F= "/^${package_ucname}_MIN_VERSION/ {print \$2}" configure.ac)
+package_rec_version=$(awk -F= "/^${package_ucname}_REC_VERSION/ {print \$2}" configure.ac)
+
+
+# Package specific overrides
+case "$package_name" in
+  bison)
+    # Bison requires that CC is a C compiler
+    CC=cc
+    export CC
+    ;;
+  *)
+    ;;
+esac
 
 AWK=${AWK:-awk}
-BISON=${BISON:-bison}
 CURL=${CURL:-curl}
 WGET=${WGET:-wget}
-
-FILE="$PACKAGE-$INSTALL_VERSION.tar.gz"
-URL="http://ftp.gnu.org/gnu/bison/$PACKAGE-$INSTALL_VERSION.tar.gz"
+DESTDIR=${DESTDIR:-/usr}
 
 ROOT_DIR=${TMPDIR:-/tmp}
-BUILD_DIR="$ROOT_DIR/build-$PACKAGE"
+BUILD_DIR="$ROOT_DIR/build-${package_name}"
 
-installed_version=`$BISON --version 2>&1 | sed -ne 's/^.*GNU Bison[^0-9]*//p'`
-installed_version_dec=`echo $installed_version | $AWK -F. '{printf("%d\n", 10000*$1 + 100*$2 + $3)};'`
-min_version_dec=`echo $MIN_VERSION | $AWK -F. '{printf("%d\n", 10000*$1 + 100*$2 + $3)};'`
-if test $installed_version_dec -ge $min_version_dec; then
-    echo "$PACKAGE $installed_version is new enough"
+installed_version=$(${program_name} --version 2>&1 | $AWK "/^${package_name}.*[.0-9]\$/ { print \$NF}")
+# shellcheck disable=SC2016
+installed_version_dec=$(echo "$installed_version" | $AWK -F. '{printf("%d\n", 10000*$1 + 100*$2 + $3)};')
+# shellcheck disable=SC2016
+min_version_dec=$(echo "$package_min_version" | $AWK -F. '{printf("%d\n", 10000*$1 + 100*$2 + $3)};')
+
+if test "$installed_version_dec" -ge "$min_version_dec"; then
+    echo "${package_name} $installed_version is new enough"
 else
-    mkdir $BUILD_DIR && cd $BUILD_DIR
-    $WGET -O $FILE $URL || $CURL -o $FILE $URL
-    tar -x -z -f $FILE && rm $FILE
-    cd $PACKAGE-$INSTALL_VERSION && ./configure --prefix=/usr && make && sudo make install
-    cd / && rm -rf $BUILD_DIR
+    echo "Building and installing ${package_rec_version} from source into ${DESTDIR}"
+    mkdir "$BUILD_DIR" && cd "$BUILD_DIR" || exit 1
+    package_dir="${package_name}-${package_rec_version}"
+    tarball_file="${package_dir}.tar.gz"
+    package_url="http://ftp.gnu.org/gnu/${package_name}/${tarball_file}"
+
+    $WGET -O "$tarball_file" "$package_url" || \
+      $CURL -o "$tarball_file" "$package_url"
+    tar -x -z -f "$tarball_file" && rm "$tarball_file"
+    cd "${package_dir}" && \
+        ./configure "--prefix=${DESTDIR}" && \
+        make && \
+        sudo make install
+    cd / && rm -rf "$BUILD_DIR"
 fi
-- 
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