From d637559e9a4c1d416c88109d66b76c3465dbf4c1 Mon Sep 17 00:00:00 2001
From: Sebastiano Tronto <sebastiano@tronto.net>
Date: Wed, 13 Aug 2025 10:41:47 +0200
Subject: Fix build help message

---
 build.sh | 37 +++++++++++++++++++------------------
 1 file changed, 19 insertions(+), 18 deletions(-)

(limited to 'build.sh')

diff --git a/build.sh b/build.sh
index cad6947..7cd38e3 100755
--- a/build.sh
+++ b/build.sh
@@ -170,26 +170,27 @@ fi
 build_help() {
 	echo "Build system for nissy. Usage:"
 	echo ""
-	echo "$0 [-d] TARGET             # build the given TARGET"
-	echo "$0 [-d]                    # same as '$0 nissy [-d]'"
-	echo "$0 test [PATTERN]          # run unit tests (matching PATTERN)"
-	echo "$0 webtest [PATTERN]       # same as test, but for WASM build"
-	echo "$0 [-d] tool PATTERN       # run the tool matching PATTERN"
+	echo "$0 [-d] [TARGET]"
 	echo ""
-	echo "targets:"
+	echo "Possible values for TARGET (defaults to 'nissy' if unspecified):"
 	echo ""
-	echo "nissy       Build the nissy.o object file"
-	echo "lib         Build the static library libnissy.a"
-	echo "sharedlib   Build the shared library libnissy.so"
-	echo "python      Build the Python module for nissy"
-	echo "shell       Build a basic nissy shell (./run)"
-	echo "web         Build the WebAssembly / JavaScript module for nissy"
-	echo "cpp FILES   Build and run the given FILES including cpp/nissy.h"
-	echo "solvetest   Build nissy and run the tests for solvers (tools)"
-	echo ""
-	echo "help        Show this help message"
-	echo "config      Show build configuration and exit"
-	echo "clean       Remove all build files"
+	echo "nissy          Build the nissy.o object file."
+	echo "lib            Build the static library libnissy.a."
+	echo "sharedlib      Build the shared library libnissy.so."
+	echo "python         Build the Python module for nissy."
+	echo "shell          Build a basic nissy shell (./run)."
+	echo "web            Build the WebAssembly module for nissy."
+	echo "cpp FILES      Build and run the given C++ FILES."
+	echo "test [EXPR]    Build and run unit tests. If EXPR is provided,"
+        echo "               only the tests whose name matches EXPR are run."
+        echo "               The -d option is always implied."
+	echo "webtest [EXPR] Same as test, but for WebAssembly build."
+	echo "tool EXPR      Run the 'tool' matching the given EXPR."
+	echo "solvetest      Build nissy and run a collection of tools for"
+	echo "               testing various solvers."
+	echo "help           Show this help message."
+	echo "config         Show build configuration and exit."
+	echo "clean          Remove all build files."
 	echo ""
 	echo "The -d option activates debug mode (slower, used for testing)."
 	echo "Tests are automatically built in debug mode even without -d."
-- 
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