initial commit

gitdiff

+#!/bin/bash
+
+NUMARGS=$#
+
+if (($NUMARGS == 0))
+then
+        echo -e "Info:\ngitdiff generates a compiled latexdiff file from different git commits."
+        echo -e "Usage:\ngitdiff <other hash> filename.tex\ngitdiff <new hash> <old hash> filename.tex\ngitdiff <new hash> <old hash> <path to file> filename.tex"
+fi
+if (($NUMARGS == 1))
+then
+        echo -e "Info:\ngitdiff generates a compiled latexdiff file from different git commits."
+        echo -e "Usage:\ngitdiff <other hash> filename.tex\ngitdiff <new hash> <old hash> filename.tex\ngitdiff <new hash> <old hash> <path to file> filename.tex"
+fi
+if (($NUMARGS == 2))
+then
+        GITSTATUS=$(git diff --stat)
+        if [ -z "$GITSTATUS" ]
+        then
+                :
+        else
+                echo "Please clean your working tree first."
+                exit 1
+        fi
+        CURRENTHASH=$(git rev-parse HEAD)
+        OTHERHASH=$1
+        FILENAME=$2
+        TEMPDIR=${CURRENTHASH}_${OTHERHASH}_GITDIFF_TEMPDIR_314159
+        DIFFFILE=gitdiff_${CURRENTHASH}_${OTHERHASH}
+
+        if [ -f "$DIFFFILE" ]
+        then
+                echo -e "Please remove $DIFFFILE first."
+                exit 1
+        fi
+        if [ -d "$TEMPDIR" ]
+        then
+                echo -e "Please remove $TEMPDIR first"
+                exit 1
+        fi
+
+        if git cat-file -e $OTHERHASH^{commit}
+        then
+                echo -e "$OTHERHASH is valid"
+        else
+                echo -e "Fatal: Hash $OTHERHASH is invalid"
+                exit 1
+        fi
+        git checkout $OTHERHASH
+        if [ -f "$FILENAME" ]
+        then
+                :
+        else
+                echo "Fatal: $FILENAME does not exist"
+                git checkout -
+                exit 1
+        fi
+        mkdir $TEMPDIR
+        cp $FILENAME $TEMPDIR
+        git checkout -
+        latexdiff $TEMPDIR/$FILENAME $FILENAME > $DIFFFILE.tex
+        pdflatex $DIFFFILE.tex
+        bibtex $DIFFFILE.tex
+        pdflatex $DIFFFILE.tex
+        rm -rf $DIFFFILE.aux $DIFFFILE.out $DIFFFILE.log
+        #rm -rf $DIFFFILE.tex
+        rm -rf $TEMPDIR
+fi
+if (($NUMARGS == 3))
+then
+        GITSTATUS=$(git diff --stat)
+        if [ -z "$GITSTATUS" ]
+        then
+                :
+        else
+                echo "Please clean your working tree first."
+                exit 1
+        fi
+        CURRENTHASH=$(git rev-parse HEAD)
+        NEWHASH=$1
+        OLDHASH=$2
+        FILENAME=$3
+        TEMPDIR=${NEWHASH}_${OLDHASH}_GITDIFF_TEMPDIR_314159
+        DIFFFILE=gitdiff_${NEWHASH}_${OLDHASH}
+
+        if [ -f "$DIFFFILE" ]
+        then
+                echo -e "Please remove $DIFFFILE first."
+                exit 1
+        fi
+        if [ -d "$TEMPDIR" ]
+        then
+                echo -e "Please remove $TEMPDIR first"
+                exit 1
+        fi
+
+        if git cat-file -e $OLDHASH^{commit}
+        then
+                echo -e "$OLDHASH is valid"
+        else
+                echo -e "Fatal: Hash $OLDHASH is invalid"
+                exit 1
+        fi
+        if git cat-file -e $NEWHASH^{commit}
+        then
+                echo -e "$NEWHASH is valid"
+        else
+                echo -e "Fatal: Hash $NEWHASH is invalid"
+                exit 1
+        fi
+        git checkout $OLDHASH
+        if [ -f "$FILENAME" ]
+        then
+                :
+        else
+                echo "Fatal: $FILENAME does not exist"
+                git checkout -
+                exit 1
+        fi
+        mkdir $TEMPDIR
+        cp $FILENAME $TEMPDIR/$FILENAME
+        git checkout -
+        git checkout $NEWHASH
+        if [ -f "$FILENAME" ]
+        then
+                :
+        else
+                echo "Fatal: $FILENAME does not exist"
+                rm -rf $TEMPDIR
+                git checkout -
+                exit 1
+        fi
+        latexdiff $TEMPDIR/$FILENAME $FILENAME > $DIFFFILE.tex
+        git checkout -
+        pdflatex $DIFFFILE.tex
+        bibtex $DIFFFILE.tex
+        pdflatex $DIFFFILE.tex
+        rm -rf $DIFFFILE.aux $DIFFFILE.out $DIFFFILE.log
+        #rm -rf $DIFFFILE.tex
+        rm -rf $TEMPDIR
+fi
+if (($NUMARGS == 4))
+then
+        CURRENTDIR=$(pwd)
+        NEWHASH=$1
+        OLDHASH=$2
+        DIRECTORY=$3
+        FILENAME=$4
+        if [ -d "$DIRECTORY" ]
+        then
+                :
+        else
+                echo -e "Fatal: $DIRECTORY doesn't exist"
+                exit 1
+        fi
+        if $(git -C $DIRECTORY rev-parse)
+        then
+                :
+        else
+                echo "Fatal: Not a git repository"
+                cd $CURRENTDIR
+                exit 1
+        fi
+        cd $DIRECTORY
+        GITSTATUS=$(git diff --stat)
+        if [ -z "$GITSTATUS" ]
+        then
+                :
+        else
+                echo "Please clean your working tree first."
+                cd $CURRENTDIR
+                exit 1
+        fi
+        if $(git cat-file -e $NEWHASH^{commit})
+        then
+                echo -e "$NEWHASH is valid"
+        else
+                echo -e "Fatal: Hash $NEWHASH is invalid"
+                cd $CURRENTDIR
+                exit 1
+        fi
+        if $(git cat-file -e $OLDHASH^{commit})
+        then
+                echo -e "$OLDHASH is valid"
+        else
+                echo -e "Fatal: Hash $OLDHASH is invalid"
+                cd $CURRENTDIR
+                exit 1
+        fi
+
+
+        CURRENTHASH=$(git rev-parse HEAD)
+        TEMPDIR=${NEWHASH}_${OLDHASH}_GITDIFF_TEMPDIR_314159
+        DIFFFILE=gitdiff_${NEWHASH}_${OLDHASH}
+
+        if [ -d "$TEMPDIR" ]
+        then
+                echo -e "Please remove $TEMPDIR from the repo first"
+                cd $CURRENTDIR
+                exit 1
+        fi
+
+        git checkout $OLDHASH
+        if [ -f "$FILENAME" ]
+        then
+                :
+        else
+                echo "Fatal: $FILENAME does not exist"
+                git checkout -
+                cd $CURRENTDIR
+                exit 1
+        fi
+        mkdir $TEMPDIR
+        cp $FILENAME $TEMPDIR/$FILENAME
+        git checkout -
+        git checkout $NEWHASH
+        if [ -f "$FILENAME" ]
+        then
+                :
+        else
+                echo "Fatal: $FILENAME does not exist"
+                rm -rf $TEMPDIR
+                git checkout -
+                cd $CURRENTDIR
+                exit 1
+        fi
+        latexdiff $TEMPDIR/$FILENAME $FILENAME > $DIFFFILE.tex
+        git checkout -
+        pdflatex $DIFFFILE.tex
+        bibtex $DIFFFILE.tex
+        pdflatex $DIFFFILE.tex
+        rm -rf $DIFFFILE.aux $DIFFFILE.out $DIFFFILE.log
+        #rm -rf $DIFFFILE.tex
+        rm -rf $TEMPDIR
+        mv $DIFFFILE.pdf $CURRENTDIR/${FILENAME//.}_$DIFFFILE.pdf
+        cd $CURRENTDIR
+fi