Added install-capi.sh

crates/ekore_capi/install-capi.sh

@@ -0,0 +1,150 @@
+#!/bin/sh
+
+# WARNING: do not commit changes to this file unless you've checked it against
+# `shellcheck` (https://www.shellcheck.net/); run `shellcheck install-capi.sh`
+# to make sure this script is POSIX shell compatible; we cannot rely on bash
+# being present
+
+set -eu
+
+prefix=
+version=
+target=
+
+while [ $# -gt 0 ]; do
+    case $1 in
+        --version)
+            if [ $# -lt 2 ]; then
+                echo "Error: --version requires a value" >&2
+                exit 1
+            fi
+            version=$2
+            shift
+            shift
+            ;;
+        --version=*)
+            version=${1#--version=}
+            shift
+            ;;
+        --prefix)
+            if [ $# -lt 2 ]; then
+                echo "Error: --prefix requires a value" >&2
+                exit 1
+            fi
+            prefix=$2
+            shift
+            shift
+            ;;
+        --prefix=*)
+            prefix=${1#--prefix=}
+            shift
+            ;;
+        --target)
+            if [ $# -lt 2 ]; then
+                echo "Error: --target requires a value" >&2
+                exit 1
+            fi
+            target=$2
+            shift
+            shift
+            ;;
+        --target=*)
+            target=${1#--target=}
+            shift
+            ;;
+        *)
+            echo "Error: argument '$1' unknown" >&2
+            exit 1
+            ;;
+    esac
+done
+
+if [ -z "${target}" ]; then
+    case $(uname -m):$(uname -s) in
+        arm64:Darwin)
+            target=macos-aarch64;;
+        x86_64:Darwin)
+            target=macos-x86_64;;
+        aarch64:Linux)
+            target=linux-aarch64;;
+        x86_64:Linux)
+            target=linux-x86_64;;
+        *)
+            echo "Error: unknown target, uname = '$(uname -a)'"
+            exit 1;;
+    esac
+fi
+
+# if no prefix is given, prompt for one
+if [ -z "${prefix}" ]; then
+    if [ -r /dev/tty ]; then
+        printf "Enter installation path: "
+        IFS= read -r prefix </dev/tty
+        echo
+    else
+        echo "Error: cannot prompt for --prefix (no TTY available); pass --prefix explicitly" >&2
+        exit 1
+    fi
+fi
+
+# we need the absolute path; expand a leading "~" (POSIX) and canonicalize
+case ${prefix} in "~"|"~/"*) prefix=${HOME}${prefix#\~};; esac
+mkdir -p "${prefix}"
+cd "${prefix}"
+prefix=$(pwd)
+cd - >/dev/null
+
+# if no version is given, use the latest version tag
+if [ -z "${version}" ]; then
+    version=$(curl -s -o /dev/null -w '%{redirect_url}' \
+        "https://github.com/NNPDF/eko/releases/latest" | sed 's:.*/tag/::')
+fi
+
+url="https://github.com/NNPDF/eko/releases/download/${version}/ekore_capi-${version}-${target}.tar.gz"
+
+echo "prefix:  '${prefix}'"
+echo "target:  '${target}'"
+echo "version: '${version}'"
+echo "URL:     '${url}'"
+
+curl -fsSL "${url}" | tar xzf - -C "${prefix}"
+
+# Patch the pkg-config file
+escaped_prefix=$(printf %s "${prefix}" | sed 's:[\\/&]:\\&:g')
+sed "s:prefix=/:prefix=${escaped_prefix}/:" "${prefix}/lib/pkgconfig/ekore_capi.pc" > "${prefix}/lib/pkgconfig/ekore_capi.pc.new"
+mv "${prefix}"/lib/pkgconfig/ekore_capi.pc.new "${prefix}"/lib/pkgconfig/ekore_capi.pc
+
+pcbin=
+
+if command -v pkg-config >/dev/null; then
+    pcbin=$(command -v pkg-config)
+elif command -v pkgconf >/dev/null; then
+    pcbin=$(command -v pkgconf)
+else
+    echo
+    echo "Error: neither \`pkg-config\` nor \`pkgconf\` found. At least one is needed for the CAPI to be found"
+    exit 1
+fi
+
+# check whether the library can be found
+if "${pcbin}" --exists ekore_capi; then
+    found_prefix=$(cd "$("${pcbin}" --variable=prefix ekore_capi)" && pwd)
+
+    if [ "${prefix}" != "${found_prefix}" ]; then
+        echo
+        echo "Warning: Your PKG_CONFIG_PATH environment variable isn't properly set."
+        echo "It appears a different installation of Ekore C-API is found:"
+        echo
+        echo "  ${found_prefix}"
+        echo
+        echo "Remove this installation or reorder your PKG_CONFIG_PATH"
+    fi
+else
+    echo
+    echo "Warning: Your PKG_CONFIG_PATH environment variable isn't properly set."
+    echo "Try adding"
+    echo
+    echo "  export PKG_CONFIG_PATH=${prefix}/lib/pkgconfig:\"\${PKG_CONFIG_PATH:-}\""
+    echo
+    echo "to your shell configuration file"
+fi