56 lines
1.5 KiB
Plaintext
56 lines
1.5 KiB
Plaintext
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#!/usr/bin/env bash
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#
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# blackbox_whatsnew - show what has changed in the last commit for a given file
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#
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blackbox_home=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
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source "${blackbox_home}/_blackbox_common.sh"
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if [[ $# -ne 1 ]]
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then
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echo "Pass only 1 file at a time"
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exit 1
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fi
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fail_if_not_in_repo
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if [[ -z $GPG_AGENT_INFO ]]; then
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echo 'WARNING: You probably want to run gpg-agent as'
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echo 'you will be asked for your passphrase many times.'
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echo 'Example: $ eval $(gpg-agent --daemon)'
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read -r -p 'Press CTRL-C now to stop. ENTER to continue: '
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fi
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COLUMNS=`tput cols`
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FILE=$1
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GIT="git log --abbrev-commit --pretty=oneline"
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CURR_COMMIT=`$GIT $FILE | head -1 | awk '{print $1}'`
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PREV_COMMIT=`$GIT ${CURR_COMMIT}~1 $FILE | head -1 | awk '{print $1}'`
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# Use colordiff if available
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if [[ -e /usr/local/bin/colordiff || -e /usr/bin/colordiff || -e /bin/colordiff ]]
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then DIFF="colordiff"
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else DIFF="diff"
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fi
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cat_commit()
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{
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COMMIT=$1
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git checkout $COMMIT $FILE
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echo "[$COMMIT] $FILE"
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echo "---------------------"
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"${blackbox_home}/blackbox_cat" $FILE | sed '/========== PLAINFILE/,/========== EXTRACTING/d'
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}
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CURR_CONTENT=`cat_commit $CURR_COMMIT`
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PREV_CONTENT=`cat_commit $PREV_COMMIT`
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clear
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# For some unknown reason this command executes fine but return exit code 1
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$DIFF -y --width $COLUMNS \
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<(echo "CURRENT" "$CURR_CONTENT" | fold -w $(( $COLUMNS / 2 - 4 )) ) \
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<(echo "PREVIOUS" "$PREV_CONTENT" | fold -w $(( $COLUMNS / 2 - 4 )) )
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git checkout $CURR_COMMIT $FILE
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echo
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