82 lines
2.1 KiB
Bash
82 lines
2.1 KiB
Bash
#!/bin/sh
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# Generic function to print an error message and bail out.
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die ()
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{
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echo $1 > /dev/stderr
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exit 1
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}
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# Print usage
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usage ()
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{
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cat <<EOF
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$0 -- Generate .patch files for a RPM package from a git repository
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Usage:
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$0 <REPOSITORY> [<COMMIT_OR_TAG>]
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<REPOSITORY> is the directory where the rebase was performed.
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<COMMIT_OR_TAG> is the commit or tag against which the rebase was
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performed. It is optional, and if not provided "origin/master" will
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be used. This script will then use 'git merge-base' to find the most
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recent common ancestor between HEAD and COMMIT_OR_TAG.
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Options are:
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-h: Print this message
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EOF
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exit 0
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}
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test -f gdb.spec || die "This script needs to run from the same directory as gdb.spec."
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test -z $1 && die "You need to specify the repository."
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test "$1" = "-h" && usage
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commit_or_tag="origin/master"
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if test ! -z "$2" ; then
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commit_or_tag="$2"
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fi
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test -d $1 || die "$1 is not a directory."
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# Remove all the current patches
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for f in `cat _patch_order` ; do
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git rm -f $f
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done
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cd $1
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idx=1
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common_ancestor=`git merge-base HEAD $commit_or_tag`
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test -z "$common_ancestor" && die "Could not find common ancestor between HEAD and $commit_or_tag."
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temp_PATCH_file=/tmp/_gdb.spec.Patch.include
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temp_patch_file=/tmp/_gdb.spec.patch.include
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temp_patch_order_file=/tmp/_patch_order
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rm -f $temp_PATCH_file $temp_patch_file $temp_patch_order_file
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for c in `git rev-list --reverse ${common_ancestor}..HEAD` ; do
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fname=`git log -1 --pretty='format:%b' $c | sed -n 's/^FileName: \(.*\)$/\1/p'`
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test -z $fname && die "Could not determine FileName of commit $c."
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git format-patch --keep -1 --stdout $c > ../$fname
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(cd .. && git add $fname)
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cat >> $temp_PATCH_file <<EOF
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`git log -1 --pretty='format:%b' $c | sed -n 's/^;;/#/p'`
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EOF
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printf "Patch%03d: %s\n\n" $idx $fname >> $temp_PATCH_file
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printf "%%patch%03d -p1\n" $idx >> $temp_patch_file
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echo $fname >> $temp_patch_order_file
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idx=`expr $idx + 1`
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done
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cd ..
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mv $temp_PATCH_file _gdb.spec.Patch.include
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mv $temp_patch_file _gdb.spec.patch.include
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mv $temp_patch_order_file _patch_order
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echo "$common_ancestor" > _git_upstream_commit
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