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-rwxr-xr-xscripts/ccwl.in50
1 files changed, 42 insertions, 8 deletions
diff --git a/scripts/ccwl.in b/scripts/ccwl.in
index ec5aa32..d47b64b 100755
--- a/scripts/ccwl.in
+++ b/scripts/ccwl.in
@@ -25,7 +25,8 @@
;;; Code:
-(use-modules (srfi srfi-37)
+(use-modules (srfi srfi-28)
+ (srfi srfi-37)
(ice-9 match)
(ccwl ccwl)
(ccwl cwl))
@@ -33,24 +34,57 @@
(define (invalid-option opt name arg result)
(error "Invalid option" name))
+(define (invalid-operand arg result)
+ (error "Invalid argument" arg))
+
+(define %help-option
+ (option (list "help") #f #t
+ (lambda (opt name arg result)
+ (acons 'help #t result))))
+
(define main
(match-lambda*
- ((_ "compile" args ...)
+ ((program "compile" args ...)
(let* ((args (args-fold args
- '()
+ (list %help-option)
invalid-option
(lambda (arg result)
(acons 'source-file arg result))
'())))
+ (when (or (assq 'help args)
+ (not (assq-ref args 'source-file)))
+ (display (format "Usage: ~a compile [OPTIONS] SOURCE-FILE
+Compile SOURCE-FILE.
+
+"
+ program)
+ (current-error-port))
+ (exit (assq 'help args)))
;; FIXME: Compiling ccwl files fails since the workflow macro is
;; unable to access command definitions.
(set! %load-should-auto-compile #f)
(workflow->cwl (load (canonicalize-path (assq-ref args 'source-file)))
(current-output-port))))
- ((program _ ...)
- (format (current-error-port)
- "Usage: ~a compile input-file~%"
- program)
- (exit #f))))
+ ((program args ...)
+ (let ((args (args-fold args
+ (list %help-option)
+ (lambda (opt name arg result)
+ result)
+ (lambda (arg result)
+ result)
+ '())))
+ (display (format "Usage: ~a COMMAND [OPTIONS] [ARGS]
+
+COMMAND must be one of the sub-commands listed below:
+
+ compile compile a workflow
+
+To get usage information for one of these sub-commands, run
+ ~a COMMAND --help
+
+"
+ program program)
+ (current-error-port))
+ (exit (assq 'help args))))))
(apply main (command-line))