implement applying channels

README.md

@@ -138,3 +138,7 @@ changes
 ### 0.8.0
 
 * do not switch channels, use --channel for all operations
+
+### 0.9.0
+
+* add command to apply changes from channel iteratively

git_pijul.py

@@ -20,6 +20,10 @@
 batch["VISUAL"] = "/bin/true"
 
 
+def do_apply(change):
+    run(["pijul", "apply", change], check=True)
+
+
 def new(name):
     run(["pijul", "channel", "new", f"in_{name}"], check=True)
 
@@ -415,14 +419,28 @@ def fill_channel_sets(left, right):
 def final_message(head):
     print("Please do not modify the in_* channels\n")
     print("To get the latest changes call:\n")
-    print(f"git pijul set-diff -l {head} | xargs pijul apply")
+    print(f"git pijul apply {head}")
 
 
 @click.group()
 def main():
     pass
 
 
+@main.command()
+@click.argument("channel")
+def apply(channel):
+    """Apply all changes from CHANNEL iteratively"""
+    left_set, right_set = fill_channel_sets([channel], [])
+    result = left_set - right_set
+    while left_set:
+        change = left_set.pop()
+        print(f"applying {change}")
+        do_apply(change)
+        left_set, right_set = fill_channel_sets([channel], [])
+        result = left_set - right_set
+
+
 @main.command()
 @click.option(
     "--left", "-l", multiple=True, help="Left channel, multiple options allowed"

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "git-pijul"
-version = "0.8.0"
+version = "0.9.0"
 description = "update pijul from git"
 authors = ["Jean-Louis Fuchs <jean-louis.fuchs@adfinis-sygroup.ch>"]
 license = "AGPL-3.0-or-later"