[DirSheet] integrate plugins/vmailcap, add sysopen-mailcap

saulpw · Oct 26, 2023 · 6e55619 · 6e55619
1 parent 3dcf66f
commit 6e55619
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Showing 3 changed files with 47 additions and 43 deletions.
diff --git a/plugins/vmailcap.py b/plugins/vmailcap.py
diff --git a/visidata/_open.py b/visidata/_open.py
@@ -198,6 +198,6 @@ def loadInternalSheet(vd, cls, p, **kwargs):
 BaseSheet.addCommand('gU', 'undo-last-quit', 'push(allSheets[-1])', 'reopen most recently closed sheet')
 
 vd.addMenuItems('''
-    File > Open file/url > open-file
+    File > Open > input file/url > open-file
     File > Reopen last closed > undo-last-quit
 ''')
diff --git a/visidata/features/sysopen_mailcap.py b/visidata/features/sysopen_mailcap.py
@@ -0,0 +1,46 @@
+''' Plugin for viewing files with appropriate mailcap-specified application.
+Add mailcap-view and mailcap-view-selected commands to DirSheet.
+
+mimetype can be given explicitly with `mimetype` option; will be guessed by filename otherwise.
+
+Usage:
+   - add `import experimental.mailcap_view` to .visidatarc
+   - on the DirSheet, `Ctrl+V` or `gCtrl+V` to view file(s) using mailcap entry for the guessed (or given via options) mimetype
+'''
+
+import os
+from visidata import vd, DirSheet, SuspendCurses
+
+vd.option('mailcap_mimetype', '', 'force mimetype for sysopen-mailcap')
+vd.optalias('mimetype', 'mailcap_mimetype')
+
+
+@DirSheet.api
+def run_mailcap(sheet, p, key='view'):
+    import mailcap
+    import mimetypes
+
+    mimetype = sheet.options.mailcap_mimetype
+    if not mimetype:
+        mimetype, encoding = mimetypes.guess_type(str(p))
+
+    if not mimetype:
+        vd.fail('no mimetype given and no guess')
+
+    caps = mailcap.getcaps()
+
+    plist = [f'{k}={v}' for k, v in sheet.options.getall('mailcap_').items() if k != 'mailcap_mimetype']
+    cmdline, mcap_entry = mailcap.findmatch(caps, mimetype, key=key, filename=str(p), plist=plist)
+
+    with SuspendCurses():
+        os.system(cmdline)
+
+
+DirSheet.addCommand('', 'sysopen-mailcap', 'run_mailcap(cursorRow)', 'open using mailcap entry for current row, guessing mimetype')
+DirSheet.addCommand('', 'sysopen-mailcap-selected', 'for r in selectedRows: run_mailcap(r)', 'open selected files in succession, using mailcap')
+
+
+vd.addMenuItems('''
+    File > Open > using mailcap > file at cursor > sysopen-mailcap
+    File > Open > using mailcap > selected files > sysopen-mailcap-selected
+''')