Marc Wäckerlin
7 years ago
parent
756662ea3a
commit
26490ed06f
1 changed files with 208 additions and 0 deletions
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#!/bin/bash -e |
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############################################################################ begin logging |
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# check if stdout is a terminal... |
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if test -t 1; then |
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# see if it supports colors... |
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ncolors=$(tput colors) |
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if test -n "$ncolors" && test $ncolors -ge 8; then |
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bold="$(tput bold)" |
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underline="$(tput smul)" |
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standout="$(tput smso)" |
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normal="$(tput sgr0)" |
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black="$(tput setaf 0)" |
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red="$(tput setaf 1)" |
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green="$(tput setaf 2)" |
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yellow="$(tput setaf 3)" |
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blue="$(tput setaf 4)" |
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magenta="$(tput setaf 5)" |
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cyan="$(tput setaf 6)" |
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white="$(tput setaf 7)" |
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fi |
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fi |
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append_msg() { |
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if test $# -ne 0; then |
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echo -n ": ${bold}$*" |
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fi |
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echo "${normal}" |
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} |
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|
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# write a message |
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message() { |
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if test $# -eq 0; then |
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return |
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fi |
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echo "${bold}${white}$*${normal}" 1>&2 |
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} |
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|
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# write a success message |
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success() { |
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echo -n "${bold}${green}success" 1>&2 |
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append_msg $* 1>&2 |
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} |
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|
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# write a notice |
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notice() { |
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echo -n "${bold}${yellow}notice" 1>&2 |
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append_msg $* 1>&2 |
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} |
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|
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# write a warning message |
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warning() { |
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echo -en "${bold}${red}warning" 1>&2 |
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append_msg $* 1>&2 |
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} |
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|
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# write error message |
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error() { |
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echo -en "${bold}${red}error" 1>&2 |
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append_msg $* 1>&2 |
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} |
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|
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# run a command, print the result and abort in case of error |
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# option: --ignore: ignore the result, continue in case of error |
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run() { |
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ignore=1 |
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while test $# -gt 0; do |
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case "$1" in |
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(--ignore) ignore=0;; |
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(*) break;; |
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esac |
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shift; |
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done |
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echo -n "${bold}${yellow}running:${white} $*${normal} … " |
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set +e |
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result=$($* 2>&1) |
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res=$? |
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set -e |
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if test $res -ne 0; then |
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if test $ignore -eq 1; then |
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error "failed with return code: $res" |
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if test -n "$result"; then |
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echo "$result" |
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fi |
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exit 1 |
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else |
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warning "ignored return code: $res" |
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fi |
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else |
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success |
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fi |
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} |
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|
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############################################################################ error handler |
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function traperror() { |
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set +x |
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local err=($1) # error status |
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local line="$2" # LINENO |
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local linecallfunc="$3" |
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local command="$4" |
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local funcstack="$5" |
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IFS=" " |
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for e in ${err[@]}; do |
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if test -n "$e" -a "$e" != "0"; then |
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error "line $line - command '$command' exited with status: $e (${err[@]})" |
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if [ "${funcstack}" != "main" -o "$linecallfunc" != "0" ]; then |
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echo -n " ... error at ${funcstack} " 1>&2 |
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if [ "$linecallfunc" != "" ]; then |
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echo -n "called at line $linecallfunc" 1>&2 |
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fi |
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echo |
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fi |
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exit $e |
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fi |
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done |
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success |
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exit 0 |
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} |
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# catch errors |
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trap 'traperror "$? ${PIPESTATUS[@]}" $LINENO $BASH_LINENO "$BASH_COMMAND" "${FUNCNAME[@]}" "${FUNCTION}"' ERR SIGINT INT TERM EXIT |
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######################################################### commandline parameter evaluation |
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while test $# -gt 0; do |
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case "$1" in |
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(--help|-h) less <<EOF |
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SYNOPSIS |
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$0 [OPTIONS] |
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OPTIONS |
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--help, -h show this help |
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DESCRIPTION |
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|
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EOF |
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exit;; |
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(*) error "unknow option $1, try $0 --help"; exit 1;; |
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esac |
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if test $# -eq 0; then |
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error "missing parameter, try $0 --help"; exit 1 |
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fi |
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shift; |
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done |
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##################################################################################### Main |
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function createusers() { |
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tmpdir="/tmp/old-svn-${gittarget}" |
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svn co "$svnurl" "$tmpdir" |
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cd "$tmpdir" |
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svn log -q | \ |
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awk -F '|' \ |
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'/^r/ {sub("^ ", "", $2); sub(" $", "", $2); print $2" = "$2" <"$2">"}' | \ |
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sort -u > "$users" |
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cd - |
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rm -rf "$tmpdir" |
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} |
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users=users.txt |
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options=("--authors-file=$users" "--no-metadata" "--prefix" "" "-s") |
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svnurl="$1" |
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giturl="$2" |
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gittarget="${svnurl##*/}" |
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if ! test -f "$users"; then |
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createusers |
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fi |
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# migration according to |
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# https://git-scm.com/book/en/v2/Git-and-Other-Systems-Migrating-to-Git |
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# one-way clone subversion repository |
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run git svn clone "${options[@]}" "$svnurl" "$gittarget" |
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cd "$gittarget" |
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# move the tags to be proper git tags |
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for t in $(git for-each-ref --format='%(refname:short)' refs/remotes/tags); do |
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run git tag ${t/tags\//} $t && git branch -D -r $t |
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done |
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# move the rest of the references under refs/remotes to be local branches |
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for b in $(git for-each-ref --format='%(refname:short)' refs/remotes); do |
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run git branch $b refs/remotes/$b && git branch -D -r $b |
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done |
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# remove peg-revisions |
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for p in $(git for-each-ref --format='%(refname:short)' | grep @); do |
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run git branch -D $p |
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done |
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# remove extra trunk branch |
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run git branch -d trunk |
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# add new remote repository |
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run git remote add origin "$giturl" |
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run git push origin --all |
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run git push origin --tags |
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# checkout fresh git repository |
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cd - |
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run rm -rf "$gittarget" |
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run git clone "$giturl" "$gittarget" |
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