file - 将提交与其父级进行比较以查看文件的更改

Question

当您运行时git diff (specific commit)^..(specific commit)，或者换句话说，当您将提交与其父级进行比较时，您如何知道文件上发生了哪些更改。该特定提交的更改是什么样的？

Answer 1

The default diff output format for git diff is the "unified" format. You can find a description of the unified diff format on Wikipedia.

Answer 2

Items removed will begin with a "-", whereas lines added will begin with a "+"

A change will often have one or more "-" lines followed by one or more "+" lines, like so

diff --git a/app.js b/app.js
index f029ded..ce7c87d 100644
--- a/app.js
+++ b/app.js
@@ -72,9 +72,9 @@ var handlers = [
    , { path: '/logout', get: routes.logout.get }
    , { path: '/register', get: routes.register.get, post: routes.register.post }
    //, { path: '/profile/:id', get: [auth.restrict(), routes.profile.get], post: [auth.restrict(), routes.profile.post] } 
-   , { path: '/profile/:user', get: routes.profile.get} 
-   , { path: '/activity/:user', get: routes.profile.get} 
-   , { path: '/activity/:user/comments', get: routes.profile.get} 
+   , { path: '/profile/:canonical_id', get: routes.profile.get} 
+   , { path: '/activity/:canonical_id', get: routes.profile.get} 
+   , { path: '/activity/:canonical_id/comments', get: routes.profile.get} 
    //, { path: '/restricted', get: [auth.restrict(), auth.verifyCertificate, routes.login.get] }
 ];
 console.log(typeof routes.profile.get);