From 233e3ffe0ef35dbabe49340ba567499690dcc166 Mon Sep 17 00:00:00 2001
From: Michael Trier <mtrier@gmail.com>
Date: Fri, 30 May 2008 21:01:44 -0400
Subject: renamed git_python to git. Removed pop_key and replaced with
 dict.pop. Fixed up tests so they pass except for stderr test. Modified
 version information retrieval.

---
 lib/git/diff.py | 79 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 lib/git/diff.py

(limited to 'lib/git/diff.py')

diff --git a/lib/git/diff.py b/lib/git/diff.py
new file mode 100644
index 00000000..075b0f87
--- /dev/null
+++ b/lib/git/diff.py
@@ -0,0 +1,79 @@
+import re
+import commit
+
+class Diff(object):
+    """
+    A Diff contains diff information between two commits.
+    """
+
+    def __init__(self, repo, a_path, b_path, a_commit, b_commit, a_mode, b_mode, new_file, deleted_file, diff):
+        self.repo = repo
+        self.a_path = a_path
+        self.b_path = b_path
+
+        if not a_commit or re.search(r'^0{40}$', a_commit):
+            self.a_commit = None
+        else:
+            self.a_commit = commit.Commit(repo, **{'id': a_commit})
+        if not b_commit or re.search(r'^0{40}$', b_commit):
+            self.b_commit = None
+        else:
+            self.b_commit = commit.Commit(repo, **{'id': b_commit})
+
+        self.a_mode = a_mode
+        self.b_mode = b_mode
+        self.new_file = new_file
+        self.deleted_file = deleted_file
+        self.diff = diff
+
+    @classmethod
+    def list_from_string(cls, repo, text):
+        lines = text.splitlines()
+        a_mode = None
+        b_mode = None
+        diffs = []
+        while lines:
+            m = re.search(r'^diff --git a/(\S+) b/(\S+)$', lines.pop(0))
+            if m:
+                a_path, b_path = m.groups()
+            if re.search(r'^old mode', lines[0]):
+                m = re.search(r'^old mode (\d+)', lines.pop(0))
+                if m:
+                    a_mode, = m.groups()
+                m = re.search(r'^new mode (\d+)', lines.pop(0))
+                if m:
+                    b_mode, = m.groups()
+                if re.search(r'^diff --git', lines[0]):
+                    diffs.append(Diff(repo, a_path, b_path, None, None, a_mode, b_mode, False, False, None))
+                    continue
+
+            new_file = False
+            deleted_file = False
+
+            if re.search(r'^new file', lines[0]):
+                m = re.search(r'^new file mode (.+)', lines.pop(0))
+                if m:
+                    b_mode, = m.groups()
+                a_mode = None
+                new_file = True
+            elif re.search(r'^deleted file', lines[0]):
+                m = re.search(r'^deleted file mode (.+)$', lines.pop(0))
+                if m:
+                    a_mode, = m.groups()
+                b_mode = None
+                deleted_file = True
+
+            m = re.search(r'^index ([0-9A-Fa-f]+)\.\.([0-9A-Fa-f]+) ?(.+)?$', lines.pop(0))
+            if m:
+                a_commit, b_commit, b_mode = m.groups()
+            if b_mode:
+                b_mode = b_mode.strip()
+
+            diff_lines = []
+            while lines and not re.search(r'^diff', lines[0]):
+                diff_lines.append(lines.pop(0))
+
+            diff = "\n".join(diff_lines)
+            diffs.append(Diff(repo, a_path, b_path, a_commit, b_commit, a_mode, b_mode, new_file, deleted_file, diff))
+
+        return diffs
-- 
cgit v1.2.1