Workflow - Replace inconsistent screenshots with selectable code snippets.

This patch removes the ad-hoc screenshots from the slides introducing
the git workflow. Instead of the pictures, selectable text is shown. To
improve consistency, all the snippets use the sandbox repositories
(instead of ceph-puppet) and the placeholder "USERNAME" for gerrit.

Change-Id: Ib7d3313d060d625dbcdda74ca768fde0874db1e4

doc/upstream-training/source/slides/workflow-setup-and-first-patch.rst

@@ -9,60 +9,180 @@ Setup & First Patch
 git config
 ==========
 
-- git config --global user.name "Firstname Lastname"
-- git config --global user.email "your_email@youremail.com"
+.. code-block:: console
+
+  $ git config --global user.name "Firstname Lastname"
+
+  $ git config --global user.email "your_email@youremail.com"
+
+  $ git config --list
+  user.email=your_email@youremail.com
+  user.name=Firstname Lastname
+  core.repositoryformatversion=0
+  core.filemode=true
+  core.bare=false
+  core.logallrefupdates=true
+  remote.origin.url=https://git.openstack.org/openstack/training-guides
+  remote.origin.fetch=+refs/heads/*:refs/remotes/origin/*
+  branch.master.remote=origin
+  branch.master.merge=refs/heads/master
 
-.. image:: ./_assets/14-04-git-config.png
 
 Install git review
 ==================
 
-- apt / yum / pip install … git review
+- Use either your distribution's package manager (``apt``/``yum``) or ``pip``
+  (recommended)
 
-.. image:: ./_assets/14-05-install.png
+.. code-block:: console
+
+  $ sudo -H pip install git-review
+  Collecting git-review
+    Downloading git_review-1.25.0-py2.py3-none-any.whl
+  [ ... ]
+  Installing collected packages: git-review
+  Successfully installed git-review-1.25.0
 
 git clone
 =========
 
-.. image:: ./_assets/14-06-git-clone.png
+.. code-block:: console
+
+  $ git clone git://git.openstack.org/openstack-dev/sandbox
+  Cloning into 'sandbox'...
+  remote: Counting objects: 1548, done.
+  remote: Compressing objects: 100% (1049/1049), done.
+  remote: Total 1548 (delta 598), reused 1178 (delta 340)
+  Receiving objects: 100% (1548/1548), 254.74 KiB | 70.00 KiB/s, done.
+  Resolving deltas: 100% (598/598), done.
+
+  $ cd sandbox/
 
 git review -s
 =============
 
-.. image:: ./_assets/14-07-git-review-s.png
+.. code-block:: console
+
+  $ git review -s
+  The authenticity of host '[104.130.246.91]:29418 ([104.130.246.91]:29418)' can't be established.
+  RSA key fingerprint is SHA256:RXNl/GKyDaKiIQ93BoDvrNSKUPFvA1PNeAO9QiirYZU.
+  Are you sure you want to continue connecting (yes/no)? yes
+  Could not connect to gerrit.
+  Enter your gerrit username: USERNAME
+  Trying again with ssh://USERNAME@104.130.246.91:29418/openstack-dev/sandbox.git
+  Creating a git remote called "gerrit" that maps to:
+          ssh://USERNAME@104.130.246.91:29418/openstack-dev/sandbox.git
+
+  This repository is now set up for use with git-review. You can set the
+  default username for future repositories with:
+    git config --global --add gitreview.username "USERNAME"
+
+  $ git config --global --add gitreview.username "USERNAME"
+
+git remote show gerrit
+======================
+
+.. code-block:: console
+
+  $ git remote show gerrit
+  * remote gerrit
+    Fetch URL: ssh://USERNAME@104.130.246.91:29418/openstack-dev/sandbox.git
+    Push  URL: ssh://USERNAME@104.130.246.91:29418/openstack-dev/sandbox.git
+    HEAD branch: master
+    Remote branches:
+      feature/foo  tracked
+      master       tracked
+      merge-test   tracked
+      stable/xyzzy tracked
+    Local ref configured for 'git push':
+      master pushes to master (up to date)
+
 
 git checkout -b TOPIC-BRANCH
 ============================
 
-.. image:: ./_assets/14-08-git-checkout.png
+.. code-block:: console
+
+  $ git checkout -b TOPIC-BRANCH
+  Switched to a new branch 'TOPIC-BRANCH'
+  $ git branch -vv
+  * TOPIC-BRANCH 33798d4 Imported Translations from Zanata
+    master       33798d4 [origin/master] Imported Translations from Zanata
+
 
 running unit tests
 ==================
 
-.. image:: ./_assets/14-09-unit-tests.png
+.. code-block:: console
+
+  $ tox -e py27,pep8
+  [ ... ]
+  ======
+  Totals
+  ======
+  Ran: 11720 tests in 686.0000 sec.
+   - Passed: 11712
+   - Skipped: 8
+   - Expected Fail: 0
+   - Unexpected Success: 0
+   - Failed: 0
+  Sum of execute time for each test: 2382.5781 sec.
+
+  ==============
+  Worker Balance
+  ==============
+   - Worker 0 (2929 tests) => 0:09:59.085214
+   - Worker 1 (2931 tests) => 0:10:51.072379
+  [ ... ]
 
 git commit --amend
 ==================
 
+.. code-block:: console
+
+  $ git commit --amend
+
 .. image:: ./_assets/14-13-git-commit-amend.png
+    :height: 450px
+    :align: center
+
+.. note::
+    Without going into details, mention and explain what kind of tools are
+    available when it comes to diff, merge and edit commit messages in a
+    real-world scenario.
+
+    Worth mentioning:
+      - git gui
+      - gitk / gitg
+      - tig
+      - vim-fugitive, emacs-magit
+      - other graphical stand-alone tools (sourcetree, tortoisegit)
 
 git review
 ==========
 
-.. image:: ./_assets/20-git-review.png
+.. code-block:: console
+
+  $ git review
+  remote: Processing changes: updated: 1, refs: 1, done
+  remote: (W) f985de5: commit subject >65 characters; use shorter first paragraph
+  remote:
+  remote: Updated Changes:
+  remote:   https://review.openstack.org/489760 WIP: Workflow - Replace inconsistent screenshots with selectable code snippets.
+  remote:
+  To ssh://review.openstack.org:29418/openstack/training-guides.git
+   * [new branch]      HEAD -> refs/publish/master/workflow-replace-images
+
+Exercise #1
+===========
 
-Exercise
-========
 - Configure your workspace
-    - git config
+    - ``git config``
     - install git review
-    - git clone
-    - git review -s
+    - ``git clone``
+    - ``git review -s``
 - Create & push a Work in Progress (WIP) to the sandbox
-    - git checkout -b <branch_name>
-    - Run unit tests
-    - Make changes
-    - Run unit tests
-    - Add files
+    - ``git checkout -b <branch_name>``
+    - Make changes (add / edit files)
     - Commit files and write commit message
-    - git review
+    - ``git review``