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A bash script to list blobs (hash id and path) in a git repo
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| #!/bin/bash | |
| # | |
| # git-blob-ids: List blobs (hash id and path) in a git repo | |
| # | |
| # Usage: git-blob-ids [-s] [-r REF] [-p PATH] | |
| # | |
| # -r REF an optional reference to a commit (hash or symbolic like HEAD), default: HEAD | |
| # -p PATH an option path to a subtree in repo, default is blank for root tree | |
| # -s shortens blob hash ids to 6 characters | |
| # | |
| function short { echo $@ | awk '{print substr($1,0,6);}'; } | |
| function nochange { echo $@; } | |
| ref=HEAD | |
| path= | |
| idfunc=nochange | |
| while getopts "sr:p:" options; do | |
| case "${options}" in | |
| s) | |
| idfunc=short | |
| ;; | |
| r) | |
| ref=${OPTARG} | |
| ;; | |
| p) | |
| path=${OPTARG} | |
| ;; | |
| esac | |
| done | |
| if [[ ${#path} > 0 ]]; then | |
| tree=$ref:$path | |
| else | |
| # start from root tree | |
| tree=(`git cat-file -p $ref | head -1 | awk '{print $2}'`) | |
| tree="${tree}|" | |
| fi | |
| # tokenize by line in git command output | |
| IFS=' | |
| ' | |
| # breadth-first iteration of sub-trees | |
| while [[ ${#tree} > 0 ]]; do | |
| el=`echo $tree | awk '{print $1}'` | |
| t=`echo $el | awk -F"|" '{print $1}'` | |
| path=`echo $el | awk -F"|" '{print $2}'` | |
| if [[ ${#path} > 0 ]]; then | |
| pfx=$path/ | |
| fi | |
| # pop | |
| tree=`echo $tree | sed 's/[^ ]* *//'` | |
| for l in `git cat-file -p $t`; do | |
| if [[ $l =~ "blob" ]]; then | |
| blob=`echo $l | sed 's/.* blob //;s/\t.*//'` | |
| blob=`$idfunc $blob` | |
| lpath=`echo $l | sed 's/.* blob //;s/.*\t//'` | |
| # output blob info | |
| echo $blob $pfx$lpath | |
| elif [[ $l =~ "tree" ]]; then | |
| id=`echo $l | sed 's/.* tree //;s/\t.*//'` | |
| lpath=`echo $l | sed 's/.* tree //;s/.*\t//'` | |
| # push | |
| if [[ ${#tree} > 0 ]]; then | |
| tree="${tree} $id|$pfx$lpath" | |
| else | |
| tree="$id|$pfx$lpath" | |
| fi | |
| fi | |
| done | |
| done |
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