1 files changed, 97 insertions, 0 deletions
diff --git a/debian/import-tar.py b/debian/import-tar.py
new file mode 100755
index 0000000000..d188624b14
--- /dev/null
+++ b/debian/import-tar.py
@@ -0,0 +1,97 @@
+#!/usr/bin/env python3
+
+import glob
+import tarfile
+import sys
+from optparse import OptionParser
+import os
+
+class GitImportTar(object):
+    def __init__(self, filename, head):
+        self.mark = 1
+        self.git = sys.stdout
+        self.files = {}
+        self.name = filename
+        self.mtime = 0
+        self.head = head
+
+    def addfile(self, info, prefix = '', file = None):
+        if info.isdir():
+            return
+        self.git.write("blob\n" +
+                       "mark :%d\n" % self.mark)
+        mode = info.mode
+        if info.issym():
+            self.git.write("data %d\n" % len(info.linkname) +
+                           info.linkname)
+            mode = 0o120000
+        elif file:
+            self.git.write("data %d\n" % (info.size))
+            self.git.flush()
+            self.git.buffer.write(file.read(info.size))
+
+        self.git.write("\n")
+        if not prefix in self.files:
+            self.files[prefix] = {}
+        self.files[prefix][info.name] = (self.mark, mode)
+        self.mark += 1
+        if info.mtime > self.mtime:
+            self.mtime = info.mtime
+
+    def close(self):
+        self.git.write("commit refs/heads/%s\n" % (self.head) +
+                       "author T Ar Creator' <tar@example.com> %d +0000\n" % (self.mtime) +
+                       "committer T Ar Creator' <tar@example.com> %d +0000\n" % (self.mtime) +
+                       "data <<EOM\n" +
+                       "Imported from %s\n" % (self.name) +
+                       "EOM\n\n" +
+                       "from refs/heads/%s^0\n" % (self.head) +
+                       "deleteall\n")
+        for prefix, fileset in self.files.items():
+            basedir = os.path.commonprefix(list(fileset.keys()))
+            for path, info in fileset.items():
+                (mark, mode) = info
+                if mode != 0o120000:
+                    mode = 0o755 if (mode & 0o111) else 0o644
+                path = path[len(basedir):].lstrip('/')
+                if prefix != '':
+                    path = prefix + '/' + path
+                self.git.write("M %o :%d %s\n" % (mode, mark, path))
+
+def main():
+    parser = OptionParser()
+    parser.add_option("-H", "--head", dest="head",
+        help="import on the given head", metavar="NAME")
+    (options, args) = parser.parse_args()
+
+    if not options.head:
+        options.head = "upstream"
+
+    (name, ext) = os.path.splitext(args[0])
+    if ext[0:2] != '.t':
+        (name, ext) = os.path.splitext(name)
+
+    git_import = GitImportTar(os.path.basename(args[0]), options.head)
+    for file in [args[0]] + glob.glob(name + "-*" + ext + "*"):
+        (_, this_ext) = os.path.splitext(file)
+        if this_ext == ext:
+            prefix = file[len(name)+1:-len(this_ext)]
+        else:
+            prefix = file[len(name)+1:-len(this_ext) - len(ext)]
+        tar = tarfile.open(file, "r:*")
+
+        while True:
+            info = tar.next()
+            if not info:
+                break
+            if info.isfile():
+                file = tar.extractfile(info)
+                git_import.addfile(info, prefix, file)
+            else:
+                git_import.addfile(info, prefix)
+
+        tar.close()
+    git_import.close()
+
+if __name__ == '__main__':
+    main()