From 4b8fab54c346c5590cc609d99e40d4b7cba29cda Mon Sep 17 00:00:00 2001
From: Roland Conybeare <rconybeare@gmail.com>
Date: Fri, 14 Jun 2024 15:13:53 -0400
Subject: [PATCH] xo-cmake: + xo-build assistant

---
 CMakeLists.txt         |   7 ++
 README.md              |   2 +
 bin/xo-build.in        | 214 +++++++++++++++++++++++++++++++++++++++++
 bin/xo-cmake-config.in |   2 +-
 4 files changed, 224 insertions(+), 1 deletion(-)
 create mode 100644 bin/xo-build.in

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0e28d3f..4b7c103 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -23,6 +23,12 @@ configure_file(
     @ONLY
     )
 
+configure_file(
+    ${PROJECT_SOURCE_DIR}/bin/xo-build.in
+    ${PROJECT_BINARY_DIR}/xo-build
+    @ONLY
+    )
+
 install(
     FILES
     "cmake/xo_macros/xo-project-macros.cmake"
@@ -36,6 +42,7 @@ install(
     FILES
     "${PROJECT_BINARY_DIR}/xo-cmake-lcov-harness"
     "${PROJECT_BINARY_DIR}/xo-cmake-config"
+    "${PROJECT_BINARY_DIR}/xo-build"
     PERMISSIONS OWNER_READ OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE
     DESTINATION ${CMAKE_INSTALL_BINDIR}
 )
diff --git a/README.md b/README.md
index db3b4dd..8ccf76b 100644
--- a/README.md
+++ b/README.md
@@ -42,6 +42,8 @@ $ cp $PREFIX/share/xo-macros/xo-bootstrap-macros.cmake cmake/
 then in `foo/CMakeLists.txt`:
 ```
 include(cmake/xo-bootstrap-macros.cmake)
+
+xo_cxx_toplevel_options3()
 ```
 
 Now as long as `$PREFIX/bin` is in `PATH`:
diff --git a/bin/xo-build.in b/bin/xo-build.in
new file mode 100644
index 0000000..dbbfc18
--- /dev/null
+++ b/bin/xo-build.in
@@ -0,0 +1,214 @@
+#!/usr/bin/env bash
+
+usage() {
+    echo "$0 [-u|--usage|-h|--help] [--xoname=NAME] [--repo]"
+}
+
+help() {
+    usage
+
+    cat <<EOF
+
+fetch and/or build xo component libraries
+
+Options:
+  -u | --usage      brief help message
+  -h | --help       this help message
+  --list            list known xo library
+  -n                dry-run: don't actually invoke state-changing commands
+  --xoname=NAME     operate on xo subsystem NAME
+  --repo            report github repo for NAME
+  --clone           git clone xo library NAME in current directory
+  --configure       run cmake for xo library NAME in immediate subdir
+                    Will use NAME/.build as build directory
+  --build           run cmake build for xo library NAME in immediate subdir
+  --install         run cmake install for xo library NAME in immediate subdir
+EOF
+}
+
+noop_flag=0
+xoname=
+repo_flag=0
+clone_flag=0
+configure_flag=0
+build_flag=0
+install_flag=0
+
+while [[ $# > 0 ]]; do
+    case "$1" in
+        -u | --usage)
+            cmd='usage'
+            ;;
+        -h | --help)
+            cmd='help'
+            ;;
+        -n)
+            noop_flag=1
+            ;;
+        --list)
+            cmd='list'
+            ;;
+        --xoname=*)
+            xoname="${1#*=}"
+            ;;
+        --repo)
+            repo_flag=1
+            ;;
+        --clone)
+            clone_flag=1
+            ;;
+        --configure|--config)
+            configure_flag=1
+            ;;
+        --build)
+            build_flag=1
+            ;;
+        --install)
+            install_flag=1
+            ;;
+        xo-*)
+            xoname="$1"
+            ;;
+        *)
+            usage
+            exit 1
+            ;;
+    esac
+
+    shift
+done
+
+subsystem_list() {
+    cat <<EOF
+xo-cmake
+xo-indentlog
+xo-refcnt
+xo-subsys
+xo-reflect
+xo-pyutil
+xo-pyreflect
+xo-expression
+xo-pyexpression
+xo-jit
+xo-pyjit
+EOF
+}
+
+XO_REPO_STEM="https://github.com/Rconybea"
+
+repo() {
+    xoname=$1
+
+    case "$xoname" in
+        xo-cmake)
+            echo "${XO_REPO_STEM}/xo-cmake.git"
+            ;;
+        xo-indentlog)
+            echo "${XO_REPO_STEM}/indentlog.git"
+            ;;
+        xo-refcnt)
+            echo "${XO_REPO_STEM}/refcnt.git"
+            ;;
+        xo-subsys)
+            echo "${XO_REPO_STEM}/subsys.git"
+            ;;
+        xo-reflect)
+            echo "${XO_REPO_STEM}/reflect.git"
+            ;;
+        xo-pyutil)
+            echo "${XO_REPO_STEM}/xo-pyutil.git"
+            ;;
+        xo-pyreflect)
+            echo "${XO_REPO_STEM}/xo-pyreflect.git"
+            ;;
+        xo-expression)
+            echo "${XO_REPO_STEM}/xo-expression.git"
+            ;;
+        xo-pyexpression)
+            echo "${XO_REPO_STEM}/xo-pyexpression.git"
+            ;;
+        xo-jit)
+            echo "${XO_REPO_STEM}/xo-jit.git"
+            ;;
+        xo-pyjit)
+            echo "${XO_REPO_STEM}/xo-pyjit.git"
+            ;;
+        *)
+            echo "$0: unknown xo component [${xoname}]"
+            return 1
+    esac
+
+    return 0
+}
+
+if [[ $cmd == 'usage' ]]; then
+    echo -n "usage: "
+    usage
+    exit 0
+elif [[ $cmd == 'help' ]]; then
+    echo -n "help; "
+    help
+    exit 0
+fi
+
+set -e
+
+if [[ $cmd == 'list' ]]; then
+    subsystem_list
+fi
+
+if [[ $repo_flag -eq 1 ]]; then
+    if [[ -n "$xoname" ]]; then
+        repo $xoname
+    fi
+fi
+
+if [[ $clone_flag -eq 1 ]]; then
+    if [[ -n "$xoname" ]]; then
+        url=$(repo $xoname)
+
+        cmd="git clone $url"
+
+        if [[ $noop_flag -eq 1 ]]; then
+            echo $cmd
+        else
+            $cmd
+        fi
+    fi
+fi
+
+if [[ $configure_flag -eq 1 ]]; then
+    if [[ -n "$xoname" ]]; then
+        cmd="cmake -DCMAKE_INSTALL_PREFIX=@CMAKE_INSTALL_PREFIX@ -S $xoname -B $xoname/.build"
+
+        if [[ $noop_flag -eq 1 ]]; then
+            echo $cmd
+        else
+            $cmd
+        fi
+    fi
+fi
+
+if [[ $build_flag -eq 1 ]]; then
+    if [[ -n "$xoname" ]]; then
+        cmd="cmake --build $xoname/.build -j"
+
+        if [[ $noop_flag -eq 1 ]]; then
+            echo $cmd
+        else
+            $cmd
+        fi
+    fi
+fi
+
+if [[ $install_flag -eq 1 ]]; then
+    if [[ -n "$xoname" ]]; then
+        cmd="cmake --install $xoname/.build"
+
+        if [[ $noop_flag -eq 1 ]]; then
+            echo $cmd
+        else
+            $cmd
+        fi
+    fi
+fi
diff --git a/bin/xo-cmake-config.in b/bin/xo-cmake-config.in
index df5a2d8..4950617 100755
--- a/bin/xo-cmake-config.in
+++ b/bin/xo-cmake-config.in
@@ -13,7 +13,7 @@ display xo-cmake configuration variables
 
 Options:
   -u | --usage        brief help message
-  --help              this help message
+  -h | --help         this help message
   --cmake-module-path report directory providing xo-cmake macros (will use/appear-in CMAKE_MODULE_PATH)
   --lcov-exe          report path to 'lcov' executable
   --genhtml-exe       report path to 'genhtml' executable