post-commit

#!/bin/bash

# modified from http://brunohq.com/journal/speed-project-git-hook-for-asana/
# 
# Added Bitbucket and GitHub links to Asana commits
# modified by Richard Sumilang <me@richardsumilang.com>

# -----------------------
# necessary configuration:
# git config --global user.asana-key "MY_ASANA_API_KEY" (http://app.asana.com/-/account_api)
#
# not necessary at the moment, but may be useful in future revisions of the script:
# git config --local user.asana-workspace "WORKSPACE_ID" (found in the URL)
# git config --local user.asana-project "PROJECT_ID" (found in the URL)
# -----------------------

apikey=$(git config user.asana-key)

# defaults
if [ $apikey == '' ] ; then exit 0; fi

# Find repo host
for gitRemote in `git remote -v`; do
    repo=`echo $gitRemote | egrep -o 'https?://[^ ]+'`
    domain=`echo $repo | awk -F \/ '{l=split($3,a,"."); print (a[l-1]=="com"?a[l-2] OFS:X) a[l-1] OFS a[l]}' OFS="."`
    
    # Remove username if part of url
    if [[ $domain == *"@"* ]] 
    then
        domain=`echo $domain | awk -F"@" '{print $2}'`
    fi
    
    # Bitbucket or GitHub paths
    if [ $domain == 'bitbucket.org' ]
    then
        repoPath=${repo/*bitbucket.org\//}
        repoPath=${repoPath%.*}
        commitUrl="https://bitbucket.org/$repoPath/commits/"
        break;
    elif [ $domain == 'github.com' ]
    then
        repoPath=${repo/*github.com\//}
        repoPath=${repoPath%.*}
        commitUrl="https://github.com/$repoPath/commit/"
        break;
    else
        repoPath=$repo
        commitUrl=''
    fi
done


# hold the closed ticket numbers
declare -a closed
# hold the ticket numbers that are not closed, just touched
declare -a referenced
# track whether we're currently closing tickets or just referencing them
closes='NO'

# regex pattern to recognize a story number
taskid_pattern='#([0-9]*)'
# regex pattern to recognize a "closing this ticket" word
closes_pattern='([Ff]ix|[Cc]lose|[Cc]losing)'
# regex pattern to recognize an "and" word (eg "fixes #1, #2, and #3")
and_pattern='([Aa]nd|&)'

# get the checkin comment for parsing
comment=$(git log --pretty=format:"%s %b" -n1)
print_comment=$(git log --pretty=format:"Committed $commitUrl%h with message:
\"%s\"
to repository $repoPath" -n1)

# break the commit comment down into words
IFS=' ' read -a words <<< "$comment"

for element in "${words[@]}"
do
    # if we have a task id, save it to the appropriate array
    if [[ $element =~ $taskid_pattern ]]; then
    if [ "${closes}" == "YES" ]; then
        closed=("${closed[@]}" "${BASH_REMATCH[1]}")
    fi
    referenced=("${referenced[@]}" "${BASH_REMATCH[1]}")
    # or else if we have a "closes" word, set the tracking bool accordingly
    elif [[ $element =~ $closes_pattern ]]; then
    closes='YES'
    # and if we don't, set us back to referencing
    # (if we're an "and", don't change any state)
    elif [[ ! $element =~ $and_pattern ]]; then
    closes='NO'
    fi
done

# touch the stories we've referenced
for element in "${referenced[@]}"
do
    curl -u ${apikey}: https://app.asana.com/api/1.0/tasks/${element}/stories \
         -d "text=${print_comment}" > /dev/null 2>&1
done

# close the tasks we've fixed
for element in "${closed[@]}"
do
    curl --request PUT -u ${apikey}: https://app.asana.com/api/1.0/tasks/${element} \
         -d "completed=true" > /dev/null 2>&1
done