general: Rename set_colors to sequences

1 files changed, 70 insertions, 0 deletions

diff --git a/pywal/sequences.py b/pywal/sequences.py
new file mode 100755
index 0000000..eb51497
--- /dev/null
+++ b/pywal/sequences.py
@@ -0,0 +1,70 @@
+"""
+Send sequences to all open terminals.
+"""
+import os
+import re
+
+from pywal.settings import CACHE_DIR
+from pywal import util
+
+
+def set_special(index, color):
+    """Build the escape sequence for special colors."""
+    return f"\033]{index};{color}\007"
+
+
+def set_color(index, color):
+    """Build the escape sequence we need for each color."""
+    return f"\033]4;{index};{color}\007"
+
+
+def send_sequences(colors, vte):
+    """Send colors to all open terminals."""
+
+    # Colors 0-15.
+    sequences = [set_color(num, color)
+                 for num, color in enumerate(colors["colors"].values())]
+
+    # Special colors.
+    # http://pod.tst.eu/http://cvs.schmorp.de/rxvt-unicode/doc/rxvt.7.pod#XTerm_Operating_System_Commands
+    # 10 = foreground, 11 = background, 12 = cursor foregound
+    # 13 = mouse foreground
+    sequences.append(set_special(10, colors["special"]["foreground"]))
+    sequences.append(set_special(11, colors["special"]["background"]))
+    sequences.append(set_special(12, colors["special"]["cursor"]))
+    sequences.append(set_special(13, colors["special"]["cursor"]))
+
+    # Set a blank color that isn"t affected by bold highlighting.
+    sequences.append(set_color(66, colors["special"]["background"]))
+
+    # This escape sequence doesn"t work in VTE terminals.
+    if not vte:
+        sequences.append(set_special(708, colors["special"]["background"]))
+
+    # Get a list of terminals.
+    terminals = [f"/dev/pts/{term}" for term in os.listdir("/dev/pts/")
+                 if len(term) < 4]
+    terminals.append(CACHE_DIR / "sequences")
+
+    # Send the sequences to all open terminals.
+    # pylint: disable=W0106
+    [util.save_file("".join(sequences), term) for term in terminals]
+
+    print("colors: Set terminal colors")
+
+
+def reload_colors(vte):
+    """Reload colors."""
+    sequence_file = CACHE_DIR / "sequences"
+
+    if sequence_file.is_file():
+        sequences = "".join(util.read_file(sequence_file))
+
+        # If vte mode was used, remove the problem sequence.
+        if vte:
+            sequences = re.sub(r"\]708;\#.{6}", "", sequences)
+
+        # Make the terminal interpret escape sequences.
+        print(sequences, end="")
+
+    exit(0)