cli/git-remote: add export command

Two (sub)features are stubbed out in this initial implementation:
deleting messages (as opposed to tags), and missing messages. There
are two corresponding tests marked as broken in T860-git-remote.sh.
A third test passes with the stub, which is maybe not ideal, but at
least it acts as a regression test.

1 files changed, 44 insertions, 0 deletions

diff --git a/test/make-export.py b/test/make-export.py
new file mode 100644
index 00000000..0e6a1141
--- /dev/null
+++ b/test/make-export.py
@@ -0,0 +1,44 @@
+# generate a test input for the 'export' subcommand of the
+# git-remote-notmuch helper
+
+from notmuch2 import Database
+from time import time
+from hashlib import sha1
+
+def hexencode(str):
+    output_charset = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-_@=.,"
+    out = ""
+    for char in str:
+        if not char in output_charset:
+            out+= f"%{ord(char):x}"
+        else:
+            out+= char
+    return out
+
+db = Database(config=Database.CONFIG.SEARCH)
+
+count=1
+print("export")
+mark={}
+
+for msg in db.messages(""):
+    mark[msg.messageid]=count
+    blob=""
+    for tag in msg.tags:
+        blob += f"{tag}\n"
+    print (f"blob\nmark :{count}");
+    print (f"data {len(blob)}\n{blob}")
+    count=count+1
+
+print (f"\ncommit refs/heads/master\nmark :{count+1}")
+ctime = int(time())
+print (f"author Notmuch Test Suite <notmuch@example.com> {ctime} +0000")
+print (f"committer Notmuch Test Suite <notmuch@example.com> {ctime} +0000")
+print (f"data 8\nignored")
+
+for msg in db.messages(""):
+    digest = sha1(msg.messageid.encode('utf8')).hexdigest()
+    filename = hexencode(msg.messageid)
+    print (f"M 100644 :{mark[msg.messageid]} _notmuch_metadata/{digest[0:2]}/{digest[2:4]}/{filename}/tags")
+
+print("\ndone\n")