1216006 - Ability to view source changes between versions

Status: RESOLVED WORKSFORME

(Developer Services :: Mercurial: hg.mozilla.org, defect)

Description

[Kai Hendry]

User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2535.0 Safari/537.36

Steps to reproduce:

I want to diff between for example 41.0 & 41.0.2 to see what source lines of code have changed.

I searched and found https://developer.mozilla.org/en/docs/Viewing_and_searching_Mozilla_source_code_online which I found poor.

And then discovered https://hg.mozilla.org/mozilla-central/ but the tags don't seem to correspond to versioned releases.


Actual results:

Can't discover a place to see the source changes.


Expected results:

Some UI like Github's for example

https://github.com/mozilla/gecko-dev/compare/GECKO50_2011051718_RELBRANCH...GECKO50_2011052708_RELBRANCH

Though again, I cannot find any tag names that correspond to your 41.0, 41.0.1, 41.0.2 versioned releases.

Comment 1

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

The releases are tagged on the mozilla-release branch: http://hg.mozilla.org/releases/mozilla-release/

You can see the changes by directly reading the log (not many for releases where only the third part of the version number changes) or construct a changelog like this: http://hg.mozilla.org/releases/mozilla-release/pushloghtml?fromchange=FIREFOX_41_0_1_RELEASE&tochange=FIREFOX_41_0_2_RELEASE

Comment 2

[Kai Hendry]

Thank you Sebastian! Though I still don't quite understand how to get a raw diff from that UI.

For example: http://s.natalian.org/2015-10-20/41.0..41.0.2.diff

Comment 3

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

This doesn't seem possible at the moment. There is a 5 year old patch which adds the feature but seems to have never landed in mercurial: https://selenic.com/pipermail/mercurial-devel/2010-October/025723.html

Comment 4

[Gregory Szorc [:gps]]

For future reference, a mostly full set of endpoints on the Mercurial HTTP server is documented at https://hg.mozilla.org/mozilla-central/help/hgweb.

Diffing between two arbitrary revisions is a vector for denial of service attacks. If the server did support it, I wouldn't be too keen on enabling it, at least not without restrictions on output size.

There are a bunch of "diff to html" programs in the wild. I suggest piping the output of a locally run `hg diff` to one of them. `hg help config.diff` and `hg help diff` will tell you how to print diffs in a format suitable for whatever these tools insist on reading.