A look at a directory opens a pane listing it, as acme's directory window: named dir/, its entries in acme's columns (bytewise, dotfiles kept, a directory's marked /), a look at an entry from there, Get or a look again reads it again, never dirty, Save refused; DirLook terminal keeps ls in a terminal

Co-Authored-By: Claude Opus 5.5 <[email protected]>

8 files changed, 82 insertions, 4 deletions

diff --git a/test/fs.py b/test/fs.py
index 204f4b37..65b354d9 100644
--- a/test/fs.py
+++ b/test/fs.py
@@ -605,6 +605,28 @@ def unattended_messages_expire(binary):
             assert not shown(), 'an unattended message outlived MessageLinger'
 
 
+def directory_panes(binary):
+    """A look at a directory opens a pane listing it, as acme's directory
+    window: a text pane named with a trailing /, its body the entries (a
+    directory's marked /), ctl's isdir 1, and get reads it again."""
+    with tempfile.TemporaryDirectory(prefix='pardes-dirpane-') as directory:
+        root = Path(directory).resolve()
+        listed = root / 'listed'
+        (listed / 'sub').mkdir(parents=True)
+        (listed / '.dot').write_bytes(b'')
+        with session(binary, root, 'dirpane') as (client, _):
+            serial = look(client, str(listed))
+            rows = [row.split() for row in client.read('/index').decode().splitlines()]
+            row = next(r for r in rows if int(r[0]) == serial)
+            assert row[1:4] == ['text', '0', f'{listed}/'], row
+            body = client.read(f'/pane/{serial}/body').decode()
+            assert body.split() == ['.dot', 'sub/'], body
+            assert client.read(f'/pane/{serial}/ctl').split()[3] == b'1'
+            (listed / 'later').write_bytes(b'')
+            client.write(f'/pane/{serial}/ctl', b'get\n')
+            assert client.read(f'/pane/{serial}/body').decode().split() == ['.dot', 'later', 'sub/']
+
+
 def new_terminals_named_once(binary):
     """A terminal started outside the session's directory is named by that
     directory from its `new` on: no rename to the session's and back."""
@@ -612,6 +634,9 @@ def new_terminals_named_once(binary):
         root = Path(directory)
         (root / 'sub').mkdir()
         with session(binary, root, 'names') as (client, _):
+            # A look at a directory starts a terminal there (DirLook
+            # terminal); DirLook pane, the default, lists it in a pane.
+            client.write('/ctl', b'DirLook terminal\n')
             made = [look(client, str(root / 'sub'))]
             before = {int(row.split()[0]) for row in client.read('/index').splitlines()}
             client.write('/pane/1/ctl', b'Tty\n')
@@ -992,6 +1017,7 @@ def test(binary, quic=False):
     exit_answers(binary)
     unattended_messages_expire(binary)
     new_terminals_named_once(binary)
+    directory_panes(binary)
     workflow_canary(binary)
     recent_survives_restart(binary)
     python_repl_runs_one_line(binary)
diff --git a/test/snapshots/cmdword.snap b/test/snapshots/cmdword.snap
index 631fab8b..42a91e18 100644
--- a/test/snapshots/cmdword.snap
+++ b/test/snapshots/cmdword.snap
@@ -23,6 +23,9 @@ file zzmark.txt x
 # the top of the body -- which would move every row this script clicks. The
 # verbs are what is under test here, not the announcement.
 config Verbose off
+# a directory looked at opens a terminal there (DirLook terminal), as this
+# script was written for; DirLook pane, the default, is dirpane.snap's
+config DirLook terminal
 start 31 120 cmds.txt
 wait 8000 Newcol Joincol
 wait 8000 cmds.txt
diff --git a/test/snapshots/dirpane.golden b/test/snapshots/dirpane.golden
new file mode 100644
index 00000000..3118079f
--- /dev/null
+++ b/test/snapshots/dirpane.golden
@@ -0,0 +1,13 @@
+== snap dir-open grid=80x24 cursor=7,6
+|Newcol Joincol Find Grep Help Changelog Tutor Dump Themes Config Debug Exit
+|   New Tty Find Grep Joincol Delcol
+|   /tmp/pardes-snap/dirpane/cwd/top.txt Save Tty Collapse Del
+|     1 sub
+|
+|   /tmp/pardes-snap/dirpane/cwd/sub/ Get Tty Collapse Del
+|     1 .hidden        beta-gamma.txt inner.txt
+|     2 alpha.txt      deeper/        zeta
+|     3
+== snap entry-open grid=80x24 cursor=7,9
+|8:    /tmp/pardes-snap/dirpane/cwd/sub/inner.txt Save Tty Collapse Del
+|9:      1 inner-marker
diff --git a/test/snapshots/dirpane.snap b/test/snapshots/dirpane.snap
new file mode 100644
index 00000000..a884b12e
--- /dev/null
+++ b/test/snapshots/dirpane.snap
@@ -0,0 +1,27 @@
+# a look at a directory opens a pane named for it with a trailing /, its
+# entries in columns as acme's directory window lays them out: down each
+# column first, a directory's marked /, dotfiles shown. A look at an entry
+# opens it from that directory. No shell anywhere: nothing here races a prompt.
+dirmk sub
+dirmk sub/deeper
+file sub/inner.txt inner-marker
+file sub/.hidden x
+file sub/alpha.txt x
+file sub/beta-gamma.txt x
+file sub/zeta x
+file top.txt sub
+config Verbose off
+start 24 80 top.txt
+wait 8000 top.txt
+stable 700 20000
+press right @sub 4
+release right @sub 4
+wait 8000 inner.txt
+stable 700 20000
+snap dir-open
+# an entry, by its name alone: sub's inner.txt
+press right @inner.txt 7
+release right @inner.txt 7
+wait 8000 inner-marker
+stable 700 20000
+snap entry-open
diff --git a/test/snapshots/look-dir.snap b/test/snapshots/look-dir.snap
index caf29da8..2032d0c0 100644
--- a/test/snapshots/look-dir.snap
+++ b/test/snapshots/look-dir.snap
@@ -2,6 +2,9 @@
 dirmk sub
 file sub/inner.txt inner-marker
 file top.txt x
+# a directory looked at opens a terminal there (DirLook terminal), as this
+# script was written for; DirLook pane, the default, is dirpane.snap's
+config DirLook terminal
 start 31 100 -n 3
 wait 8000 top.txt
 stable 700 20000
diff --git a/test/snapshots/lookpanes.snap b/test/snapshots/lookpanes.snap
index e1db907a..2834a4a9 100644
--- a/test/snapshots/lookpanes.snap
+++ b/test/snapshots/lookpanes.snap
@@ -24,6 +24,9 @@ file beta/bmark.txt both.txt\nb-marker
 # the top of the body -- which moves every row this script clicks. What the
 # verbs do is what is under test, not the announcement.
 config Verbose off
+# a directory looked at opens a terminal there (DirLook terminal), as this
+# script was written for; DirLook pane, the default, is dirpane.snap's
+config DirLook terminal
 start 51 130 beta/bmark.txt
 wait 8000 b-marker
 stable 700 20000
diff --git a/test/snapshots/nested.golden b/test/snapshots/nested.golden
index 07d6148d..44ab4b82 100644
--- a/test/snapshots/nested.golden
+++ b/test/snapshots/nested.golden
@@ -46,15 +46,15 @@
 |
 |   /tmp/pardes-snap/nested/cwd/+New Save Tty Collapse Del
 |     1
-== snap dir-arg grid=100x31 cursor=4,8
+== snap dir-arg grid=100x31 cursor=7,6
 |Newcol Joincol Find Grep Help Changelog Tutor Dump Themes Config Debug Exit
 |   New Tty Find Grep Joincol Delcol
 |$  /tmp/pardes-snap/nested/cwd Tty+bash Save Mode Filter Collapse Del
 |  $ $(readlink /proc/$PPID/exe) nestdir
 |  $
-|   /tmp/pardes-snap/nested/cwd/nestdir Tty+bash Save Mode Filter Collapse Del
-|  ls
-|  inside-nested.txt
+|   /tmp/pardes-snap/nested/cwd/nestdir/ Get Tty Collapse Del
+|     1 inside-nested.txt
+|     2
 |
 |
 |
diff --git a/test/snapshots/ttylook.snap b/test/snapshots/ttylook.snap
index 5b82bd89..91401a64 100644
--- a/test/snapshots/ttylook.snap
+++ b/test/snapshots/ttylook.snap
@@ -9,6 +9,9 @@
 lines big.txt 40
 file plain.txt just text
 dirmk sub
+# a directory looked at opens a terminal there (DirLook terminal), as this
+# script was written for; DirLook pane, the default, is dirpane.snap's
+config DirLook terminal
 start 31 120 -n 3
 wait 8000 big.txt
 stable 700 20000