feat(search): search all cheatpaths

Update the search function. It now searches all cheatpaths all the time,
as if `--all` were implicitly passed.

cmd/cheat/cmd_search.go

@@ -8,7 +8,6 @@ import (
 
 	"github.com/cheat/cheat/internal/config"
 	"github.com/cheat/cheat/internal/display"
-	"github.com/cheat/cheat/internal/sheet"
 	"github.com/cheat/cheat/internal/sheets"
 )
 
@@ -32,31 +31,18 @@ func cmdSearch(opts map[string]interface{}, conf config.Config) {
 		)
 	}
 
-	// consolidate the cheatsheets found on all paths into a single map of
-	// `title` => `sheet` (ie, allow more local cheatsheets to override less
-	// local cheatsheets)
-	consolidated := sheets.Consolidate(cheatsheets)
-
-	// if <cheatsheet> was provided, search that single sheet only
-	if opts["<cheatsheet>"] != nil {
-
-		cheatsheet := opts["<cheatsheet>"].(string)
-
-		// assert that the cheatsheet exists
-		s, ok := consolidated[cheatsheet]
-		if !ok {
-			fmt.Printf("No cheatsheet found for '%s'.\n", cheatsheet)
-			os.Exit(2)
-		}
-
-		consolidated = map[string]sheet.Sheet{
-			cheatsheet: s,
-		}
-	}
+	// iterate over each cheatpath
+	out := ""
+	for _, pathcheats := range cheatsheets {
 
 		// sort the cheatsheets alphabetically, and search for matches
-	out := ""
-	for _, sheet := range sheets.Sort(consolidated) {
+		for _, sheet := range sheets.Sort(pathcheats) {
+
+			// if <cheatsheet> was provided, constrain the search only to
+			// matching cheatsheets
+			if opts["<cheatsheet>"] != nil && sheet.Title != opts["<cheatsheet>"] {
+				continue
+			}
 
 			// assume that we want to perform a case-insensitive search for <phrase>
 			pattern := "(?i)" + phrase
@@ -97,6 +83,10 @@ func cmdSearch(opts map[string]interface{}, conf config.Config) {
 			// indent each line of content
 			out += display.Indent(sheet.Text) + "\n"
 		}
+	}
+
+	// trim the leading newline
+	out = strings.TrimPrefix(out, "\n")
 
 	// display the output
 	// NB: resist the temptation to call `display.Display` multiple times in