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October 3, 2016 17:10
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Modified version of Andy Casey's (@andycasey) post-commit hook to run latexdiff between different revisions of a latex draft (see http://astrowizici.st/blog/2013/10/04/publishing-with-git); works on Macs and when the paper is in a sub-directory of the main git repository.
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| #!/bin/sh | |
| # Post-commit hook for revision-awsm-ness | |
| function gettempfilename() | |
| { | |
| tempfilename=$1-$RANDOM$RANDOM.tex | |
| if [ -e $tempfilename ] | |
| then | |
| tempfilename=$(gettempfilename) | |
| fi | |
| echo $tempfilename | |
| } | |
| current_hash=$(git rev-parse HEAD) | |
| current_dir=$(git diff-tree --no-commit-id --name-only -r $current_hash | xargs -I file dirname file) | |
| num_revisions=$(git log --pretty=oneline $current_dir | grep -ic "revision [v\d+(?:\.\d+)*]") | |
| # See if there are at least two revisions so that we can do a comparison | |
| if [ $num_revisions -lt 2 ] | |
| then | |
| exit | |
| else | |
| # Check to see if the last named revision is actually the commit hash that just happened | |
| current_revision=$(git log --pretty=oneline $current_dir | grep -i "revision [v\d\.]" | grep -oEi "v\d+(?:\.\d+)" | head -n 1) | |
| most_recent_revision_hash=$(git log --pretty=oneline $current_dir | grep -i "revision [v\d+(?:\.\d+)*]" | head -n 1 | awk '{ print $1 }') | |
| # If the last commit wasn't the one that contained the most recent revision number, then there's nothing to do. | |
| if [[ "$current_hash" != "$most_recent_revision_hash" ]]; then | |
| exit | |
| fi | |
| previous_revision=$(git log --pretty=oneline $current_dir | grep -i "revision [v\d\.]" | grep -oEi "v\d+(?:\.\d+)" | sed -n 2p) | |
| previous_revision_hash=$(git log --pretty=oneline $current_dir | grep -i "revision [v\d+(?:\.\d+)*]" | sed -n 2p | awk '{ print $1 }') | |
| # Use the most edited tex file in this repository as the manuscript, unless the manuscript filename was specified as an argument | |
| most_edited_tex_file=$(git log --pretty=format: --name-only $current_dir | sort | uniq -c | sort -rg | grep ".tex$" | head -n 1 | awk '{ print $2 }') | |
| manuscript_filename=${1:-$most_edited_tex_file} | |
| manuscript_filename_no_ext="${manuscript_filename%.*}" | |
| # If we can't find the manuscript filename, then exit. | |
| if [ ! -f $manuscript_filename ]; then | |
| echo "Manuscript file $manuscript_filename does not exist." | |
| fi | |
| # Get the manuscript file associated with the previous revision hash | |
| previous_manuscript_filename=$(gettempfilename previous) | |
| git show $previous_revision_hash:$manuscript_filename > $previous_manuscript_filename | |
| # Use latexdiff to create a difference version | |
| diff_ms_no_file_ext="$manuscript_filename_no_ext-revisions-$current_revision" | |
| latexdiff $previous_manuscript_filename $manuscript_filename > $diff_ms_no_file_ext.tex | |
| rm -f $previous_manuscript_filename | |
| # mv this file to the original directory and cd into that directory | |
| diff_ms_dir=$(dirname $diff_ms_no_file_ext) | |
| diff_ms_no_file_ext_no_dir=$(basename $diff_ms_no_file_ext) | |
| cd $diff_ms_dir | |
| # Compile the difference file | |
| latex $diff_ms_no_file_ext_no_dir.tex > /dev/null 2>&1 | |
| latex $diff_ms_no_file_ext_no_dir.tex > /dev/null 2>&1 | |
| latex $diff_ms_no_file_ext_no_dir.tex > /dev/null 2>&1 | |
| latex $diff_ms_no_file_ext_no_dir.tex > /dev/null 2>&1 | |
| dvipdf $diff_ms_no_file_ext_no_dir.dvi > /dev/null 2>&1 | |
| # Remove the intermediate files | |
| ls $diff_ms_no_file_ext_no_dir.* | grep -v pdf | xargs rm -f | |
| ls ${diff_ms_no_file_ext_no_dir}Notes.bib | grep -v pdf | xargs rm -f | |
| ls ${diff_ms_no_file_ext_no_dir}Notess.bib | grep -v pdf | xargs rm -f | |
| echo "Revisions to $manuscript_filename made between $previous_revision"\ | |
| "and $current_revision are highlighted in $diff_ms_no_file_ext_no_dir.pdf" | |
| fi | |
| fi |
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