Fix runtime failures: PostgreSQL PATH, Firebase ~ expansion, and param defaults

Author: NawaMan

cli/src/pkg/boothinit/compiler/compiler.go

@@ -242,6 +242,8 @@ func (c *collector) build() (*output.BoothOutput, error) {
 	for _, seg := range c.startupSegs {
 		name := fmt.Sprintf("%02d-%s--startup.sh", seg.Order, sanitizeName(seg.SourceName))
 		content := strings.TrimRight(seg.Content, "\n") + "\n"
+		// Expand ${PARAM} to ${PARAM:-value} so it's overridable at runtime
+		content = expandParamsWithDefaults(content, c.params)
 		out.Startups = append(out.Startups, output.FileContent{
 			RelPath: name,
 			Content: content,
@@ -342,6 +344,15 @@ func dedup(items []string) []string {
 	return result
 }
 
+// expandParamsWithDefaults replaces ${PARAM} references with ${PARAM:-value} in a string.
+// This keeps the variable overridable at runtime while providing a safe default.
+func expandParamsWithDefaults(s string, params map[string]string) string {
+	for k, v := range params {
+		s = strings.ReplaceAll(s, "${"+k+"}", "${"+k+":-"+v+"}")
+	}
+	return s
+}
+
 // expandParams replaces ${PARAM} references in string slices with their values.
 func expandParams(items []string, params map[string]string) []string {
 	if len(params) == 0 || len(items) == 0 {

examples/workspaces/firebase-example/.booth/startup.sh

@@ -18,7 +18,7 @@ set -euo pipefail
 # But Firebase installation creates an JSON-empty files there ("{}").
 
 SEED="/etc/cb-home-seed/.config/configstore/firebase-tools.json"
-TRGT="~/.config/configstore/firebase-tools.json"
+TRGT="$HOME/.config/configstore/firebase-tools.json"
 
 rm -rf "$TRGT"
 if  [[ -f "$SEED" ]]; then

examples/workspaces/homebrew-example/.cb-tests/inBooth-test007-postgresql--in-booth.sh

@@ -3,6 +3,12 @@
 
 echo "=== Testing PostgreSQL ==="
 
+# PostgreSQL is keg-only in Homebrew — binaries aren't symlinked to the main bin.
+# Add the versioned postgresql bin directory to PATH.
+for pg_dir in /home/linuxbrew/.linuxbrew/opt/postgresql@*/bin; do
+    [ -d "$pg_dir" ] && export PATH="$pg_dir:$PATH" && break
+done
+
 PGDATA="/tmp/test-pg-$$"
 PGLOG="/tmp/test-pg-$$.log"
 

prj--test46-init-excalidraw/.booth/startups/65-excalidraw-autostart--startup.sh

@@ -4,7 +4,7 @@ set -e
 # Adjust with : booth init adjust --select excalidraw:889+expose+autostart
 
 # Auto-start Excalidraw in background
-PORT=${EXCALIDRAW_PORT}
+PORT=${EXCALIDRAW_PORT:-889}
 LOG_FILE="/tmp/excalidraw.log"
 
 nohup serve -s --no-clipboard /opt/excalidraw -l "$PORT" > "$LOG_FILE" 2>&1 &

tests/init/test46-init-excalidraw.sh

@@ -35,7 +35,7 @@ run rm -Rf $prj
 mkdir -p $prj
 run booth init new $prj --select "excalidraw+autostart"
 startup="$prj/.booth/startups/65-excalidraw-autostart--startup.sh"
-assert-line "$startup" 'PORT=' '${EXCALIDRAW_PORT}'  "startup uses param reference"
+assert-line "$startup" 'PORT=' '${EXCALIDRAW_PORT:-15555}'  "startup uses param with default"
 
 # Test 6: Excalidraw+expose+autostart with custom port — all consistent
 run rm -Rf $prj
@@ -46,6 +46,6 @@ config="$prj/.booth/config.toml"
 startup="$prj/.booth/startups/65-excalidraw-autostart--startup.sh"
 assert-line "$boothfile" 'arg EXCALIDRAW_PORT=' '889'  "full: Boothfile param is 889"
 assert-line "$config"    'run-args = ' '["-p", "889:889"]'  "full: run-args uses 889"
-assert-line "$startup"   'PORT=' '${EXCALIDRAW_PORT}'  "full: startup uses param reference"
+assert-line "$startup"   'PORT=' '${EXCALIDRAW_PORT:-889}'  "full: startup uses param with default 889"
 
 finally