src/main.bash: new command: help

diff --git a/src/main.bash b/src/main.bash
index 4e87e8cf8b5e8987ea7b15b0dc6a7208248a014b..0e902119b1fde6af02286913d3105d39de8a9033 100644 (file)
--- a/src/main.bash
+++ b/src/main.bash
@@ -59,19 +59,21 @@ function usage () {
 Usage: $0 [COMMAND]
 
 This is an automation script designed to work with autotools. It creates a
-directory "./_build" and builds any files inside it.
+directory "./_build" and builds any files inside it. Its behaviour is
+somewhat configurable: see "./Build.rc" for details.
 
 If no COMMAND is given, it defaults to "build".
 
 Commands:
-    build          run "$0 configure" then make(1).
-    check [ARG]    run "$0 build" then "make check [ARG]".
-    configure      run autoreconf(1) and "./configure" if necessary.
+    build          run "$0 configure" then make(1)
+    check [ARG]    run "$0 build" then "make check [ARG]"
+    configure      run autoreconf(1) and "./configure" if necessary
     clean          run "rm -rf _build"
     dist           run "make dist"
     distcheck      run "$0 configure" then "make distcheck"
-    doc            similar to "$0 build" but only build the documentation.
-    install [ARG]  run "$0 build" then "make install [ARG]".
+    doc            similar to "$0 build" but only build the documentation
+    help           print this message
+    install [ARG]  run "$0 build" then "make install [ARG]"
 
 Please report any bugs, feature requests, and pull requests (the most
 preferred!) to the maintainer presented in the preamble of the "$0" itself.
@@ -89,6 +91,7 @@ function main () {
         "clean"    ) cmd="clean"    ;;
         "dist"     ) cmd="dist"     ;;
         "distcheck") cmd="distcheck";;
+        "help"     ) cmd="usage"    ;;
         "install"  ) cmd="install"  ;;
         *)           cmd="usage"    ;;
     esac