Signed-off-by: Sergey Yanovich <ynvich@xxxxxxxxx> --- Documentation/git-svndump.txt | 106 +++++++++++++++++++++++++++++++++++++++++ git-svndump-init.sh | 85 +++++++++++++++++++++++++++++++++ git-svndump-sync.sh | 85 +++++++++++++++++++++++++++++++++ 3 files changed, 276 insertions(+), 0 deletions(-) create mode 100644 Documentation/git-svndump.txt create mode 100755 git-svndump-init.sh create mode 100755 git-svndump-sync.sh diff --git a/Documentation/git-svndump.txt b/Documentation/git-svndump.txt new file mode 100644 index 0000000..9caf02b --- /dev/null +++ b/Documentation/git-svndump.txt @@ -0,0 +1,106 @@ +git-svndump(1) +========== + +NAME +---- +git-svndump - Exporting from git to a single Subversion branch + +SYNOPSIS +-------- +'git-svndump' <command> [options] [arguments] + +DESCRIPTION +----------- +git-svndump is essentially a wrapper around 'git-svn commit-diff'. It +will work only when it is the sole method of committing to the +Subversion repository. + +It is designed to export a linear git branch. However, thanks to the way +'git' handles source code, 'git-svndump' seems to work in other +conditions. For example, when branches are switched or merged. + +git-svndump provides a solution when you need to export you source code +in Subversion format (who would need this with git :), but do not want +to have all the shackles that 'git-svn init' puts on your repository. + +COMMANDS +-------- +-- + +'init':: + Initialize an existing git repository with additional + metadata directories for git-svndump. The Subversion URL + must be specified as the first non-optional command-line + argument. 'git' tree-ish that correspond to the HEAD of + that Subversion URL may be specified as the second optional + command-line argument. + +-f;; + git-svndump normally declines to reinitialize the same git + repository. With the '-f' option that behavior is overridden. + +-A<filename>;; +--authors-file=<filename>;; + The filename is stored, and provided as an argument to 'git-svn' + on calls of 'git-svndump sync'. + +'sync':: + Commit git revisions to the Subversion repository. If a git + <tree-ish> is specified as an optional command-line argument, + than all commits between the last 'sync' and that <tree-ish> are + send. If the argument is omitted, the HEAD of the active branch + is used. + +-A<filename>;; +--authors-file=<filename>;; + The filename is provided as an argument to 'git-svn'. + +-- + +BASIC EXAMPLE +-------------- + +Contributing to a Subversion repository: + +------------------------------------------------------------------------ +# Create your git repository, do some work and commit your changes +# You are working on a computer A (git.foo.org) +# Prepare your git repository for export (you are in the top dir) + git-svndump-init -A .auth http://svn.foo.org/project +# Commit the whole branch: + git-svndump-sync +# Now you go a different computer B +# Clone a git repo: + git clone git.foo.org:/path/to/project.git +# Enter the newly cloned directory: + cd project +# Immediately prepare the new repository for export + git-svndump-init -A .auth http://svn.foo.org/project HEAD +# Do some work and commit both locally and to A: + git commit ... + git push +# Commit the new work: + git-svndump-sync +# Now you return to the computer A +# Reinit your repository for export! + git-svndump-init -f -A .auth http://svn.foo.org/project HEAD +------------------------------------------------------------------------ + +BUGS +---- + +The HEAD of the Subversion repository is not tracked. If your +git-svndump repository goes out-of-sync with the Subversion mirror, +the latter will most probably be corrupted. + +SEE ALSO +-------- +gitlink:git-svn[1] + +Author +------ +Written by Sergey Yanovich <ynvich@xxxxxxxxx>. + +Documentation +------------- +Written by Sergey Yanovich <ynvich@xxxxxxxxx>. diff --git a/git-svndump-init.sh b/git-svndump-init.sh new file mode 100755 index 0000000..4cf61b8 --- /dev/null +++ b/git-svndump-init.sh @@ -0,0 +1,85 @@ +#!/bin/sh + +usage() +{ + cat << EOF +Usage: git-svndump-init [-f] subversion-url [<commit>] + subversion-url -- URL of the subversion repository to which you want + to dump the current git repository + <commit> -- git <commit> that correspond to the latest revision + in the subversion repository +OPTIONS + -f + do not stop, if the git repository is already initialized. +EOF + exit 1 +} + +if test x$GIT_DIR = x ; then + if test -d ./.git ; then + GIT_DIR=`pwd`/.git + fi +fi + +if test ! -d $GIT_DIR ; then + usage +fi + +if test x$1 = x ; then + usage +fi + +if test x$1 = x-f; then + shift + rm -rf $GIT_DIR/svndump +fi + +if test -d $GIT_DIR/svndump ; then + echo git-svndump-init: error: This git repository is already initialized + exit 1 +fi + +mkdir $GIT_DIR/svndump +if test ! -d $GIT_DIR/svndump ; then + echo git-svndump-init: error: Failed to create $GIT_DIR/svndump + exit 1 +fi + +rev=`svn info $1 >$GIT_DIR/svndump/error.log` +if test $? -ne 0 ; then + echo git-svndump-init: error: While quering $1 + rm -rf $GIT_DIR/svndump + exit 1 +fi + +rev=`cat $GIT_DIR/svndump/error.log | sed -ne "/Revision/s/.* //p"` +rm $GIT_DIR/svndump/error.log + +if test x$rev = x ; then + echo "git-svndump-init: error: Cannot determine the latest revision" + echo " at $1" + rm -rf $GIT_DIR/svndump + exit 1 +fi + +if test $rev -eq 0 ; then + mkdir -p $GIT_DIR/svndump/import && cd $GIT_DIR/svndump/import && + svn import . $1 -m "Initial import by git-svndump" + if test $? -ne 0 ; then + echo "git-svndump-init: error: Failed to init $1" + rm -rf $GIT_DIR/svndump + exit 1 + fi + rmdir $GIT_DIR/svndump/import +fi + +echo "$1" > $GIT_DIR/svndump/url + +if test x$2 != x ; then + commit=`GIT_DIR=$GIT_DIR git-rev-list --max-count=1 $2` + if test $? -ne 0 ; then + echo "git-svndump-init: warning: Bad commit $2 ignored" + else + echo $commit >> $GIT_DIR/svndump/last + fi +fi diff --git a/git-svndump-sync.sh b/git-svndump-sync.sh new file mode 100755 index 0000000..e1c04e1 --- /dev/null +++ b/git-svndump-sync.sh @@ -0,0 +1,85 @@ +#!/bin/sh + +usage() +{ + cat << EOF +Usage: git-svndump-sync [<commit>] + <commit> -- git <commit> that correspond to the latest revision + to be dumped to the subversion repository +EOF + exit 1 +} + +if test x$GIT_DIR = x ; then + if test -d ./.git ; then + GIT_DIR=`pwd`/.git + fi +fi + +if test ! -d $GIT_DIR ; then + usage +fi + +if test ! -d $GIT_DIR/svndump ; then + echo "git-svndump-sync: error: This git repository is not initialized" + echo " Run git-svndump-init first" + exit 1 +fi + +if test ! -f $GIT_DIR/svndump/url ; then + echo "git-svndump-sync: error: Cannot read url" + exit 1 +fi + +url=`cat $GIT_DIR/svndump/url` +rev=`svn info $url >$GIT_DIR/svndump/error.log` +if test $? -ne 0 ; then + echo git-svndump-sync: error: While quering $url + rm -rf $GIT_DIR/svndump/error.log + exit 1 +fi + +rev=`cat $GIT_DIR/svndump/error.log | sed -ne "/Revision/s/.* //p"` +rm $GIT_DIR/svndump/error.log + +if test x$rev = x ; then + echo "git-svndump-init: error: Cannot determine the latest revision" + echo " at $url" + exit 1 +fi + +if test x$1 = x ; then + commit=HEAD +else + commit=`GIT_DIR=$GIT_DIR git-rev-list --max-count=1 $1` + if test $? -ne 0 ; then + echo "git-svndump-sync: error: Bad commit '$1'" + exit 1 + fi +fi + +start="" +last=0000000000000000000000000000000000000000 +if test -f $GIT_DIR/svndump/last ; then + last=`cat $GIT_DIR/svndump/last` + start=^`GIT_DIR=$GIT_DIR git-rev-list --max-count=1 $last` + if test $? -ne 0 ; then + echo "git-svndump-sync: warning: Ignoring bad commit '$last'" + start="" + last=0000000000000000000000000000000000000000 + fi +fi + +list=`GIT_DIR=$GIT_DIR git-rev-list $commit $start` + +diffs="" +for c in $list ; do + diffs="$c $diffs" +done + +for c in $diffs ; do + GIT_DIR=$GIT_DIR git-svn commit-diff -r$rev $last $c $url + echo "$c" > $GIT_DIR/svndump/last + last=$c + let rev++ +done -- 1.5.2.1 - To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
