Convert pdf, doc and docx files to text by default

Converting PDF and  Word files to text before diffing them allows an easier comparison between changed
files. This reintroduces some functionality of Git for Windows 1.x.

This fixes git-for-windows/git#355 .

Signed-off-by: Matthias Aßhauer <[email protected]>

Author: rimrul

git-extra/PKGBUILD

@@ -18,6 +18,8 @@ pkgver() {
 build() {
   test $startdir/$pkgname.install -nt $startdir/$pkgname.install.in ||
   sed -e "/^@@GITCONFIG@@$/r $startdir/gitconfig" -e "/^@@GITCONFIG@@$/d" \
+	-e "/^@@GITATTRIBUTES@@$/r $startdir/gitattributes" \
+	-e "/^@@GITATTRIBUTES@@$/d" \
 	<$startdir/$pkgname.install.in >$startdir/$pkgname.install
 
   gcc -o create-shortcut.exe $startdir/create-shortcut.c -luuid -lole32
@@ -38,6 +40,7 @@ package() {
   install -d -m755 $pkgdir/usr/bin
   install -d -m755 $pkgdir/usr/share/git
   install -d -m755 $pkgdir/$mingwdir/bin
+  install -d -m755 $pkgdir/$mingwdir/etc
   install -m644 $startdir/inputrc $pkgdir/etc
   install -m644 $startdir/vimrc $pkgdir/etc
   install -m755 $startdir/vi $pkgdir/usr/bin
@@ -50,4 +53,7 @@ package() {
   install -m755 $startdir/bash_profile.sh $pkgdir/etc/profile.d
   install -m644 $startdir/msys2-32.ico $pkgdir/usr/share/git
   install -m644 $startdir/99-post-install-cleanup.post $pkgdir/etc/post-install
+  install -m755 $startdir/astextplain $pkgdir/$mingwdir/bin
+  install -m755 $startdir/gitconfig $pkgdir/$mingwdir/etc
+  install -m755 $startdir/gitattributes $pkgdir/$mingwdir/etc
 }

git-extra/astextplain

@@ -0,0 +1,30 @@
+#!/bin/sh -e
+# minimalistic replacement for `run-mailcap --action=cat <file>`
+
+if test "$#" != 1 ; then
+	echo "Usage: astextplain <file>" 1>&2
+	exit 1
+fi
+
+# XXX output encoding (UTF-8) hardcoded
+case "$1" in
+	*.doc | *.DOC | *.dot | *.DOT)
+		antiword -m UTF-8 "$1" | sed "s/\^M$//" || cat "$1"
+		;;
+	*.docx | *.DOCX)
+		docx2txt.pl "$1" -
+		;;
+	*.pdf | *.PDF)
+		pdftotext -layout "$1" -enc UTF-8 - | sed "s/\^M$//"
+		;;
+	# TODO add rtf support
+	*.rtf | *.RTF)
+		cat "$1"
+		;;
+	*)
+		echo "E: unsupported filetype $1" 1>&2
+		exit 1
+		;;
+esac
+
+exit 0

git-extra/git-extra.install.in

@@ -8,6 +8,11 @@ post_install () {
 		cat > /$dir/etc/gitconfig <<\GITCONFIG
 @@GITCONFIG@@
 GITCONFIG
+		test ! -d /$dir ||
+		test -f /$dir/etc/gitattributes ||
+		cat > /$dir/etc/gitattributes <<\GITATTRIBUTES
+@@GITATTRIBUTES@@
+GITATTRIBUTES
 	done
 
 	grep -q '^db_home: env windows' /etc/nsswitch.conf ||

git-extra/gitattributes

@@ -0,0 +1,10 @@
+*.doc	diff=astextplain
+*.DOC	diff=astextplain
+*.docx	diff=astextplain
+*.DOCX	diff=astextplain
+*.dot	diff=astextplain
+*.DOT	diff=astextplain
+*.pdf	diff=astextplain
+*.PDF	diff=astextplain
+*.rtf	diff=astextplain
+*.RTF	diff=astextplain

make-file-list.sh

@@ -28,14 +28,15 @@ pacman_list () {
 }
 
 # Packages that have been added after Git SDK 1.0.0 was released...
-pacman -S --needed --noconfirm mingw-w64-$ARCH-connect git-flow >&2 ||
+pacman -S --needed --noconfirm mingw-w64-$ARCH-connect git-flow unzip docx2txt \
+	mingw-w64-$ARCH-antiword mingw-w64-$ARCH-poppler >&2 ||
 die "Could not install required packages"
 
 pacman_list mingw-w64-$ARCH-git mingw-w64-$ARCH-git-doc-html \
 	git-extra ncurses mintty vim openssh winpty \
 	sed awk less grep gnupg tar findutils coreutils diffutils patch \
 	dos2unix which subversion mingw-w64-$ARCH-tk \
-	mingw-w64-$ARCH-connect git-flow "$@" |
+	mingw-w64-$ARCH-connect git-flow docx2txt mingw-w64-$ARCH-antiword "$@" |
 grep -v -e '\.[acho]$' -e '\.l[ao]$' -e '/aclocal/' \
 	-e '/man/' -e '/pkgconfig/' -e '/emacs/' \
 	-e '^/usr/lib/python' -e '^/usr/lib/ruby' \
@@ -71,7 +72,8 @@ grep --perl-regexp -v -e '^/usr/(lib|share)/terminfo/(?!.*/(cygwin|dumb|xterm.*)
 sed 's/^\///'
 
 test -z "$PACKAGE_VERSIONS_FILE" ||
-pacman -Q filesystem dash rebase util-linux >>"$PACKAGE_VERSIONS_FILE"
+pacman -Q filesystem dash rebase util-linux unzip \
+	mingw-w64-$ARCH-poppler >>"$PACKAGE_VERSIONS_FILE"
 
 cat <<EOF
 etc/profile
@@ -89,4 +91,32 @@ usr/bin/dash.exe
 usr/bin/rebase.exe
 usr/bin/rebaseall
 usr/bin/getopt.exe
+mingw$BITNESS/bin/astextplain
+mingw$BITNESS/etc/gitattributes
+usr/bin/unzip.exe
+mingw$BITNESS/bin/pdftotext.exe
+mingw$BITNESS/bin/libstdc++-6.dll
+mingw$BITNESS/bin/libfreetype-6.dll
+mingw$BITNESS/bin/libgcc_s_seh-1.dll
+mingw$BITNESS/bin/libglib-2.0-0.dll
+mingw$BITNESS/bin/libgmp-10.dll
+mingw$BITNESS/bin/libgnutls-30.dll
+mingw$BITNESS/bin/libharfbuzz-0.dll
+mingw$BITNESS/bin/libhogweed-4-1.dll
+mingw$BITNESS/bin/libiconv-2.dll
+mingw$BITNESS/bin/libidn-11.dll
+mingw$BITNESS/bin/libintl-8.dll
+mingw$BITNESS/bin/libjpeg-8.dll
+mingw$BITNESS/bin/liblcms2-2.dll
+mingw$BITNESS/bin/liblzma-5.dll
+mingw$BITNESS/bin/libnettle-6-1.dll
+mingw$BITNESS/bin/libopenjpeg-5.dll
+mingw$BITNESS/bin/libp11-kit-0.dll
+mingw$BITNESS/bin/libpng16-16.dll
+mingw$BITNESS/bin/libpoppler-55.dll
+mingw$BITNESS/bin/librtmp-1.dll
+mingw$BITNESS/bin/libssh2-1.dll
+mingw$BITNESS/bin/libstdc++-6.dll
+mingw$BITNESS/bin/libtasn1-6.dll
+mingw$BITNESS/bin/libtiff-5.dll
 EOF