tools/autobuild: Add scripts to build release firmware.

Signed-off-by: Damien George <damien@micropython.org>

1 files changed, 72 insertions, 0 deletions

diff --git a/tools/autobuild/remove_old_firmware.py b/tools/autobuild/remove_old_firmware.py
new file mode 100755
index 0000000000..e9d2e8aae8
--- /dev/null
+++ b/tools/autobuild/remove_old_firmware.py
@@ -0,0 +1,72 @@
+#!/usr/bin/env python3
+
+import re, subprocess, sys
+
+
+DEBUG = False
+DRY_RUN = False
+NUM_KEEP_PER_BOARD = 4
+
+
+def main():
+    ssh_machine = sys.argv[1]
+    ssh_firmware_dir = sys.argv[2]
+
+    # SSH to get list of existing files.
+    p = subprocess.run(
+        ["ssh", ssh_machine, "find", ssh_firmware_dir, "-name", "\\*-unstable-v\\*"],
+        capture_output=True,
+    )
+    if p.returncode != 0:
+        print(p.stderr)
+        return
+    all_files = p.stdout.split(b"\n")
+
+    # Parse all files to organise into boards/date/version.
+    boards = {}
+    for file in all_files:
+        m = re.match(
+            rb"([a-z/.]+)/([A-Za-z0-9_-]+)-(20[0-9]{6})-unstable-(v[0-9.-]+-g[0-9a-f]+).",
+            file,
+        )
+        if not m:
+            continue
+        dir, board, date, version = m.groups()
+        if board not in boards:
+            boards[board] = {}
+        if (date, version) not in boards[board]:
+            boards[board][(date, version)] = []
+        boards[board][(date, version)].append(file)
+
+    # Collect files to remove based on date and version.
+    remove = []
+    for board in boards.values():
+        filelist = [(date, version, files) for (date, version), files in board.items()]
+        filelist.sort(reverse=True)
+        keep = []
+        for date, version, files in filelist:
+            if keep and version == keep[-1]:
+                remove.extend(files)
+            elif len(keep) >= NUM_KEEP_PER_BOARD:
+                remove.extend(files)
+            else:
+                keep.append(version)
+
+    if DEBUG:
+        all_files.sort(reverse=True)
+        for file in all_files:
+            print(file, file in remove)
+        print(len(remove), "/", len(all_files))
+
+    # Do removal of files.
+    for file in remove:
+        file = str(file, "ascii")
+        print("remove:", file)
+        if not DRY_RUN:
+            p = subprocess.run(["ssh", ssh_machine, "/bin/rm", file], capture_output=True)
+            if p.returncode != 0:
+                print(p.stderr)
+
+
+if __name__ == "__main__":
+    main()