+
−
+
−\begin{frame}{Branches in SVN}
+
−  Subversion knows nothing about branches!
+
−  \begin{itemize}
+
−  \item but SVN has a cheap copy mechanism
+
−  \item used for tags and branches
+
−  \end{itemize}
+
−
+
−  \begin{tikzpicture}
+
−    \node<2->[working copy, below, text width=20mm, label=above:r10]
+
−             (a) at (0, 0) {
+
−      trunk/\\
+
−      \quad hello.c\\
+
−      \quad Makefile\\
+
−      branches/\\
+
−      tags/
+
−    };
+
−    \node<3->[working copy, below, text width=25mm, label=above:r11]
+
−             (b) at (3.5, 0) {
+
−      trunk/\\
+
−      \quad hello.c\\
+
−      \quad Makefile\\
+
−      branches/\\
+
−      \quad \alert<3>{goodbye/}\\
+
−      \qquad \alert<3>{hello.c}\\
+
−      \qquad \alert<3>{Makefile}\\
+
−      tags/
+
−    };
+
−    \node<4->[working copy, below, text width=30mm, label=above:r12]
+
−             (c) at (7.5, 0) {
+
−      trunk/\\
+
−      \quad hello.c\\
+
−      \quad Makefile\\
+
−      branches/\\
+
−      \quad goodbye/\\
+
−      \qquad hello.c\\
+
−      \qquad \alert<4>{goodbye.c}\\
+
−      \qquad Makefile\\
+
−      tags/
+
−    };
+
−
+
−    \tikzstyle{s}=[yshift=-5mm]
+
−    \tikzstyle{every pin edge}=[draw, red, <-]
+
−
+
−    \draw<3->[->, short] ([s] a.north east) -- ([s] b.north west);
+
−    \draw<4->[->, short] ([s] b.north east) -- ([s] c.north west);
+
−  \end{tikzpicture}
+
−\end{frame}