undoing changes I shouldn't have made

[dak.git] / daklib / utils.py

diff --git a/daklib/utils.py b/daklib/utils.py
index 2b243b85f9d6e19796dd7ec46e33c7f055cefdc4..b0b71c0169d413e32d5a6c0b1aa009dd76f4211d 100755 (executable)
--- a/daklib/utils.py
+++ b/daklib/utils.py
@@ -45,8 +45,10 @@ from dak_exceptions import *
 from textutils import fix_maintainer
 from regexes import re_html_escaping, html_escaping, re_single_line_field, \
                     re_multi_line_field, re_srchasver, re_taint_free, \
-                    re_gpg_uid, re_re_mark, re_whitespace_comment, re_issource
+                    re_gpg_uid, re_re_mark, re_whitespace_comment, re_issource, \
+                    re_is_orig_source
 
+from formats import parse_format, validate_changes_format
 from srcformats import get_format_from_string
 from collections import defaultdict
 
@@ -526,9 +528,8 @@ def build_file_list(changes, is_a_dsc=0, field="files", hashname="md5sum"):
     if not changes.has_key(field):
         raise NoFilesFieldError
 
-    # Get SourceFormat object for this Format and validate it
-    format = get_format_from_string(changes.get['format'])
-    format.validate_format(is_a_dsc=is_a_dsc, field=field)
+    # Validate .changes Format: field
+    validate_changes_format(parse_format(changes['format']), field)
 
     includes_section = (not is_a_dsc) and field == "files"
 
@@ -1507,3 +1508,48 @@ if which_conf_file() != default_config:
     apt_pkg.ReadConfigFileISC(Cnf,which_conf_file())
 
 ###############################################################################
+
+def ensure_orig_files(changes, dest_dir, session):
+    """
+    Ensure that dest_dir contains all the orig tarballs for the specified
+    changes. If it does not, symlink them into place.
+
+    Returns a 2-tuple (already_exists, symlinked) containing a list of files
+    that were already there and a list of files that were symlinked into place.
+    """
+
+    exists, symlinked = [], []
+
+    for dsc_file in changes.dsc_files:
+
+        # Skip all files that are not orig tarballs
+        if not re_is_orig_source.match(dsc_file):
+            continue
+
+        # Skip orig files not identified in the pool
+        if not (dsc_file in changes.orig_files and
+                'id' in changes.orig_files[dsc_file]):
+            continue
+
+        dest = os.path.join(dest_dir, dsc_file)
+
+        if os.path.exists(dest):
+            exists.append(dest)
+            continue
+
+        orig_file_id = changes.orig_files[dsc_file]['id']
+
+        c = session.execute(
+            'SELECT l.path, f.filename FROM location l, files f WHERE f.id = :id and f.location = l.id',
+            {'id': orig_file_id}
+        )
+
+        res = c.fetchone()
+        if not res:
+            return "[INTERNAL ERROR] Couldn't find id %s in files table." % orig_file_id
+
+        src = os.path.join(res[0], res[1])
+        os.symlink(src, dest)
+        symlinked.append(dest)
+
+    return (exists, symlinked)