boernel/lilypond-common-includes
14
0
Fork 0
Code Issues 14 Pull Requests Packages Projects Releases Wiki Activity

workaround popen trouble on windows

Browse Source
This commit is contained in:
Christoph Wagner 2025-03-26 16:15:17 +01:00
parent a0e70b4c4b
commit a6746c49dc
1 changed files with 18 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
scm/yaml_parser.scm
View File

@ -1,12 +1,22 @@
(use-modules (ice-9 popen) (ice-9 textual-ports) (json parser))
(if (not windows?) (use-modules (ice-9 popen)))
(use-modules (ice-9 textual-ports) (json parser))
(define (yml-file->scm filename)
(let* ((python_cmd (string-append "import sys, yaml, json; print(json.dumps(yaml.safe_load(open('" filename "'))))"))
; WTF? On Windows there is "py" and we need to specify the encoding, on linux there is "python3" or "python"
; but "python3" seems to work better. Be sure you have PyYAML installed.
(pipe (open-pipe (string-append "PYTHONHOME='' " (if windows? "py" "python3") " -X utf8 -c \"" python_cmd "\"") OPEN_READ))
(json (get-string-all pipe)))
(close-pipe pipe)
(json-string->scm json)))
(if windows?
(let* ((tmpdir (or (getenv "TMPDIR") (getenv "TEMP") "/tmp"))
(port (mkstemp (string-append tmpdir file-name-separator-string (basename filename) "-XXXXXX") "r"))
(tmpfilepath (port-filename port))
(python_code (string-append "import sys, yaml, json; f = open('" tmpfilepath "', 'w'); f.write(json.dumps(yaml.safe_load(open('" filename "')))); f.close()"))
(status (system (string-append "py -X utf8 -c \"" python_code "\"")))
(json (get-string-all port)))
(delete-file tmpfilepath)
(json-string->scm (if (status:exit-val status) json "{}")))
(let* ((python_code (string-append "import sys, yaml, json; print(json.dumps(yaml.safe_load(open('" filename "'))))"))
; WTF? On Windows there is "py" and we need to specify the encoding, on linux there is "python3" or "python"
; but "python3" seems to work better. Be sure you have PyYAML installed.
(pipe (open-pipe (string-append "PYTHONHOME='' " (if windows? "py" "python3") " -X utf8 -c \"" python_code "\"") OPEN_READ))
(json (get-string-all pipe)))
(close-pipe pipe)
(json-string->scm json))))
(define (parse-yml-file filename) (resolve-inherits (yml-file->scm filename)))