[FE training-materials-updates] Creating the authors variable using git

[Alexandre Belloni]

Repository : git://git.free-electrons.com/training-materials.git

On branch  : authors
Link       : http://git.free-electrons.com/training-materials/commit/?id=d56708dca66ea8dba53a3fd1f4726b4fb2729ac4

>---------------------------------------------------------------

commit d56708dca66ea8dba53a3fd1f4726b4fb2729ac4
Author: Alexandre Belloni <alexandre.belloni at free-electrons.com>
Date:   Fri Mar 22 14:05:03 2013 +0100

    Creating the authors variable using git
    
    Only issue: Sébastien Jan is disappearing from the authors.


>---------------------------------------------------------------

d56708dca66ea8dba53a3fd1f4726b4fb2729ac4
 Makefile                 |   15 +++++++++++++--
 common/android-title.tex |    2 +-
 common/kernel-title.tex  |    2 +-
 common/sysdev-title.tex  |    2 +-
 4 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/Makefile b/Makefile
index ca3dc1d..3e7bfb2 100644
--- a/Makefile
+++ b/Makefile
@@ -313,6 +313,7 @@ ifdef SLIDES
 ifeq ($(firstword $(subst -, , $(SLIDES))),full)
 SLIDES_TRAINING      = $(lastword $(subst -, , $(SLIDES)))
 SLIDES_COMMON_BEFORE = common/slide-header.tex \
+		       out/authors.tex \
 		       common/$(SLIDES_TRAINING)-title.tex
 SLIDES_CHAPTERS      = $($(call UPPERCASE, $(SLIDES_TRAINING))_SLIDES)
 SLIDES_COMMON_AFTER  = common/slide-footer.tex
@@ -320,9 +321,9 @@ else
 SLIDES_TRAINING      = $(firstword $(subst -, ,  $(SLIDES)))
 SLIDES_CHAPTERS      = $(filter $(SLIDES)%, $($(call UPPERCASE, $(SLIDES_TRAINING))_SLIDES))
 ifeq ($(words $(SLIDES_CHAPTERS)),1)
-SLIDES_COMMON_BEFORE = common/slide-header.tex common/single-subsection-slide-title.tex
+SLIDES_COMMON_BEFORE = common/slide-header.tex out/authors.tex common/single-subsection-slide-title.tex
 else
-SLIDES_COMMON_BEFORE = common/slide-header.tex common/single-slide-title.tex
+SLIDES_COMMON_BEFORE = common/slide-header.tex out/authors.tex common/single-slide-title.tex
 endif
 SLIDES_COMMON_AFTER  = common/slide-footer.tex
 endif
@@ -334,9 +335,19 @@ SLIDES_TEX      = \
 	$(SLIDES_COMMON_AFTER)
 SLIDES_PICTURES = $(call PICTURES,$(foreach s,$(SLIDES_CHAPTERS),slides/$(s))) $(COMMON_PICTURES)
 
+SLIDES_FOLDER   = \
+	$(foreach s,$(SLIDES_CHAPTERS),$(wildcard slides/$(s))) \
+
 %-slides.pdf: $(VARS) $(SLIDES_TEX) $(SLIDES_PICTURES) $(STYLESHEET)
 	@echo $(SLIDES_CHAPTERS_NUM)
 	@mkdir -p $(OUTDIR)
+# generate a list of authors, based on git commits
+	rm -f $(OUTDIR)/authors.log
+	for d in $(SLIDES_FOLDER) ; do \
+		git log --format='%aN' $$d >> $(OUTDIR)/authors.log; \
+	done
+	echo -n "\authors{" > $(OUTDIR)/authors.tex
+	sort -u -f $(OUTDIR)/authors.log | sed -e 's/$$/,/' | xargs echo | sed -e 's/,$$/}/' >> $(OUTDIR)/authors.tex
 # We generate a .tex file with \input{} directives (instead of just
 # concatenating all files) so that when there is an error, we are
 # pointed at the right original file and the right line in that file.
diff --git a/common/android-title.tex b/common/android-title.tex
index 64f61f8..ec9f04e 100644
--- a/common/android-title.tex
+++ b/common/android-title.tex
@@ -1,4 +1,4 @@
-\authors{Maxime Ripard}
+%\authors{Maxime Ripard}
 \title{Android System Development}
 \trainingurl{http://free-electrons.com/doc/training/android}
 
diff --git a/common/kernel-title.tex b/common/kernel-title.tex
index 2785031..441f939 100644
--- a/common/kernel-title.tex
+++ b/common/kernel-title.tex
@@ -1,4 +1,4 @@
-\authors{Grégory Clément, Michael Opdenacker, Maxime Ripard, Sébastien Jan, Thomas Petazzoni}
+%\authors{Grégory Clément, Michael Opdenacker, Maxime Ripard, Sébastien Jan, Thomas Petazzoni}
 \trainingurl{http://free-electrons.com/doc/training/linux-kernel}
 
 \titleframe{Linux Kernel and Driver Development Training}
diff --git a/common/sysdev-title.tex b/common/sysdev-title.tex
index 6720bc9..0caa85c 100644
--- a/common/sysdev-title.tex
+++ b/common/sysdev-title.tex
@@ -1,4 +1,4 @@
-\authors{Grégory Clément, Michael Opdenacker, Maxime Ripard, Thomas Petazzoni}
+%\authors{Grégory Clément, Michael Opdenacker, Maxime Ripard, Thomas Petazzoni}
 \trainingurl{http://free-electrons.com/doc/training/embedded-linux}
 
 \titleframe{Embedded Linux system development}