diff options
Diffstat (limited to 'dts/scripts/git-filter-branch')
| -rwxr-xr-x | dts/scripts/git-filter-branch | 557 |
1 files changed, 0 insertions, 557 deletions
diff --git a/dts/scripts/git-filter-branch b/dts/scripts/git-filter-branch deleted file mode 100755 index 0e839ae682..0000000000 --- a/dts/scripts/git-filter-branch +++ /dev/null @@ -1,557 +0,0 @@ -#!/bin/sh -# -# Rewrite revision history -# Copyright (c) Petr Baudis, 2006 -# Minimal changes to "port" it to core-git (c) Johannes Schindelin, 2007 -# -# Lets you rewrite the revision history of the current branch, creating -# a new branch. You can specify a number of filters to modify the commits, -# files and trees. - -# The following functions will also be available in the commit filter: - -export PATH=/usr/lib/git-core:$PATH - -functions=$(cat << \EOF -warn () { - echo "$*" >&2 -} - -map() -{ - # if it was not rewritten, take the original - if test -r "$workdir/../map/$1" - then - cat "$workdir/../map/$1" - else - echo "$1" - fi -} - -# if you run 'skip_commit "$@"' in a commit filter, it will print -# the (mapped) parents, effectively skipping the commit. - -skip_commit() -{ - shift; - while [ -n "$1" ]; - do - shift; - map "$1"; - shift; - done; -} - -# if you run 'git_commit_non_empty_tree "$@"' in a commit filter, -# it will skip commits that leave the tree untouched, commit the other. -git_commit_non_empty_tree() -{ - if test $# = 3 && test "$1" = $(git rev-parse "$3^{tree}"); then - map "$3" - else - git commit-tree "$@" - fi -} -# override die(): this version puts in an extra line break, so that -# the progress is still visible - -die() -{ - echo >&2 - echo "$*" >&2 - exit 1 -} -EOF -) - -eval "$functions" - -# When piped a commit, output a script to set the ident of either -# "author" or "committer - -set_ident () { - lid="$(echo "$1" | tr "[A-Z]" "[a-z]")" - uid="$(echo "$1" | tr "[a-z]" "[A-Z]")" - pick_id_script=' - /^'$lid' /{ - s/'\''/'\''\\'\'\''/g - h - s/^'$lid' \([^<]*\) <[^>]*> .*$/\1/ - s/'\''/'\''\'\'\''/g - s/.*/GIT_'$uid'_NAME='\''&'\''; export GIT_'$uid'_NAME/p - - g - s/^'$lid' [^<]* <\([^>]*\)> .*$/\1/ - s/'\''/'\''\'\'\''/g - s/.*/GIT_'$uid'_EMAIL='\''&'\''; export GIT_'$uid'_EMAIL/p - - g - s/^'$lid' [^<]* <[^>]*> \(.*\)$/\1/ - s/'\''/'\''\'\'\''/g - s/.*/GIT_'$uid'_DATE='\''&'\''; export GIT_'$uid'_DATE/p - - q - } - ' - - LANG=C LC_ALL=C sed -ne "$pick_id_script" - # Ensure non-empty id name. - echo "case \"\$GIT_${uid}_NAME\" in \"\") GIT_${uid}_NAME=\"\${GIT_${uid}_EMAIL%%@*}\" && export GIT_${uid}_NAME;; esac" -} - -USAGE="[--env-filter <command>] [--tree-filter <command>] - [--index-filter <command>] [--parent-filter <command>] - [--msg-filter <command>] [--commit-filter <command>] - [--tag-name-filter <command>] [--subdirectory-filter <directory>] - [--original <namespace>] [-d <directory>] [-f | --force] - [--state-branch <branch>] - [<rev-list options>...]" - -OPTIONS_SPEC= -. git-sh-setup - -if [ "$(is_bare_repository)" = false ]; then - require_clean_work_tree 'rewrite branches' -fi - -tempdir=.git-rewrite -filter_env= -filter_tree= -filter_index= -filter_parent= -filter_msg=cat -filter_commit= -filter_tag_name= -filter_subdir= -state_branch= -orig_namespace=refs/original/ -force= -prune_empty= -remap_to_ancestor= -while : -do - case "$1" in - --) - shift - break - ;; - --force|-f) - shift - force=t - continue - ;; - --remap-to-ancestor) - # deprecated ($remap_to_ancestor is set now automatically) - shift - remap_to_ancestor=t - continue - ;; - --prune-empty) - shift - prune_empty=t - continue - ;; - -*) - ;; - *) - break; - esac - - # all switches take one argument - ARG="$1" - case "$#" in 1) usage ;; esac - shift - OPTARG="$1" - shift - - case "$ARG" in - -d) - tempdir="$OPTARG" - ;; - --env-filter) - filter_env="$OPTARG" - ;; - --tree-filter) - filter_tree="$OPTARG" - ;; - --index-filter) - filter_index="$OPTARG" - ;; - --parent-filter) - filter_parent="$OPTARG" - ;; - --msg-filter) - filter_msg="$OPTARG" - ;; - --commit-filter) - filter_commit="$functions; $OPTARG" - ;; - --tag-name-filter) - filter_tag_name="$OPTARG" - ;; - --subdirectory-filter) - filter_subdir="$OPTARG" - remap_to_ancestor=t - ;; - --original) - orig_namespace=$(expr "$OPTARG/" : '\(.*[^/]\)/*$')/ - ;; - --state-branch) - state_branch="$OPTARG" - ;; - *) - usage - ;; - esac -done - -case "$prune_empty,$filter_commit" in -,) - filter_commit='git commit-tree "$@"';; -t,) - filter_commit="$functions;"' git_commit_non_empty_tree "$@"';; -,*) - ;; -*) - die "Cannot set --prune-empty and --commit-filter at the same time" -esac - -case "$force" in -t) - rm -rf "$tempdir" -;; -'') - test -d "$tempdir" && - die "$tempdir already exists, please remove it" -esac -mkdir -p "$tempdir/t" && -tempdir="$(cd "$tempdir"; pwd)" && -cd "$tempdir/t" && -workdir="$(pwd)" || -die "" - -# Remove tempdir on exit -trap 'cd ../..; rm -rf "$tempdir"' 0 - -ORIG_GIT_DIR="$GIT_DIR" -ORIG_GIT_WORK_TREE="$GIT_WORK_TREE" -ORIG_GIT_INDEX_FILE="$GIT_INDEX_FILE" -GIT_WORK_TREE=. -export GIT_DIR GIT_WORK_TREE - -# Make sure refs/original is empty -git for-each-ref > "$tempdir"/backup-refs || exit -while read sha1 type name -do - case "$force,$name" in - ,$orig_namespace*) - die "Cannot create a new backup. -A previous backup already exists in $orig_namespace -Force overwriting the backup with -f" - ;; - t,$orig_namespace*) - git update-ref -d "$name" $sha1 - ;; - esac -done < "$tempdir"/backup-refs - -# The refs should be updated if their heads were rewritten -git rev-parse --no-flags --revs-only --symbolic-full-name \ - --default HEAD "$@" > "$tempdir"/raw-heads || exit -sed -e '/^^/d' "$tempdir"/raw-heads >"$tempdir"/heads - -test -s "$tempdir"/heads || - die "Which ref do you want to rewrite?" - -GIT_INDEX_FILE="$(pwd)/../index" -export GIT_INDEX_FILE - -# map old->new commit ids for rewriting parents -mkdir ../map || die "Could not create map/ directory" - -if [ -n "$state_branch" ] ; then - state_commit=`git show-ref -s "$state_branch"` - if [ -n "$state_commit" ] ; then - echo "Populating map from $state_branch ($state_commit)" 1>&2 - git show "$state_commit":filter.map | - perl -n -e 'm/(.*):(.*)/ or die; - open F, ">../map/$1" or die; - print F "$2" or die; - close(F) or die' - else - echo "Branch $state_branch does not exist. Will create" 1>&2 - fi -fi - -# we need "--" only if there are no path arguments in $@ -nonrevs=$(git rev-parse --no-revs "$@") || exit -if test -z "$nonrevs" -then - dashdash=-- -else - dashdash= - remap_to_ancestor=t -fi - -rev_args=$(git rev-parse --revs-only "$@") - -case "$filter_subdir" in -"") - eval set -- "$(git rev-parse --sq --no-revs "$@")" - ;; -*) - eval set -- "$(git rev-parse --sq --no-revs "$@" $dashdash \ - "$filter_subdir")" - ;; -esac - -git rev-list --reverse --topo-order --default HEAD \ - --parents --simplify-merges $rev_args "$@" > ../revs || - die "Could not get the commits" -commits=$(wc -l <../revs | tr -d " ") - -test $commits -eq 0 && die "Found nothing to rewrite" - -# Rewrite the commits - -git_filter_branch__commit_count=0 -while read commit parents; do - git_filter_branch__commit_count=$(($git_filter_branch__commit_count+1)) - printf "\rRewrite $commit ($git_filter_branch__commit_count/$commits)" - - case "$filter_subdir" in - "") - git read-tree -i -m $commit - ;; - *) - # The commit may not have the subdirectory at all - err=$(git read-tree -i -m $commit:"$filter_subdir" 2>&1) || { - if ! git rev-parse -q --verify $commit:"$filter_subdir" - then - rm -f "$GIT_INDEX_FILE" - else - echo >&2 "$err" - false - fi - } - esac || die "Could not initialize the index" - - GIT_COMMIT=$commit - export GIT_COMMIT - git cat-file commit "$commit" >../commit || - die "Cannot read commit $commit" - - eval "$(set_ident AUTHOR <../commit)" || - die "setting author failed for commit $commit" - eval "$(set_ident COMMITTER <../commit)" || - die "setting committer failed for commit $commit" - eval "$filter_env" < /dev/null || - die "env filter failed: $filter_env" - - if [ "$filter_tree" ]; then - git checkout-index -f -u -a || - die "Could not checkout the index" - # files that $commit removed are now still in the working tree; - # remove them, else they would be added again - git clean -d -q -f -x - eval "$filter_tree" < /dev/null || - die "tree filter failed: $filter_tree" - - ( - git diff-index -r --name-only --ignore-submodules $commit && - git ls-files --others - ) > "$tempdir"/tree-state || exit - git update-index --add --replace --remove --stdin \ - < "$tempdir"/tree-state || exit - fi - - eval "$filter_index" < /dev/null || - die "index filter failed: $filter_index" - - parentstr= - for parent in $parents; do - for reparent in $(map "$parent"); do - parentstr="$parentstr -p $reparent" - done - done - if [ "$filter_parent" ]; then - parentstr="$(echo "$parentstr" | eval "$filter_parent")" || - die "parent filter failed: $filter_parent" - fi - - sed -e '1,/^$/d' <../commit | \ - eval "$filter_msg" > ../message || - die "msg filter failed: $filter_msg" - workdir=$workdir /bin/sh -c "$filter_commit" "git commit-tree" \ - $(git write-tree) $parentstr < ../message > ../map/$commit || - die "could not write rewritten commit" -done <../revs - -# If we are filtering for paths, as in the case of a subdirectory -# filter, it is possible that a specified head is not in the set of -# rewritten commits, because it was pruned by the revision walker. -# Ancestor remapping fixes this by mapping these heads to the unique -# nearest ancestor that survived the pruning. - -if test "$remap_to_ancestor" = t -then - while read ref - do - sha1=$(git rev-parse "$ref"^0) - test -f "$workdir"/../map/$sha1 && continue - ancestor=$(git rev-list --simplify-merges -1 "$ref" "$@") - test "$ancestor" && echo $(map $ancestor) >> "$workdir"/../map/$sha1 - done < "$tempdir"/heads -fi - -# Finally update the refs - -_x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]' -_x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40" -echo -while read ref -do - # avoid rewriting a ref twice - test -f "$orig_namespace$ref" && continue - - sha1=$(git rev-parse "$ref"^0) - rewritten=$(map $sha1) - - test $sha1 = "$rewritten" && - warn "WARNING: Ref '$ref' is unchanged" && - continue - - case "$rewritten" in - '') - echo "Ref '$ref' was deleted" - git update-ref -m "filter-branch: delete" -d "$ref" $sha1 || - die "Could not delete $ref" - ;; - $_x40) - echo "Ref '$ref' was rewritten" - if ! git update-ref -m "filter-branch: rewrite" \ - "$ref" $rewritten $sha1 2>/dev/null; then - if test $(git cat-file -t "$ref") = tag; then - if test -z "$filter_tag_name"; then - warn "WARNING: You said to rewrite tagged commits, but not the corresponding tag." - warn "WARNING: Perhaps use '--tag-name-filter cat' to rewrite the tag." - fi - else - die "Could not rewrite $ref" - fi - fi - ;; - *) - # NEEDSWORK: possibly add -Werror, making this an error - warn "WARNING: '$ref' was rewritten into multiple commits:" - warn "$rewritten" - warn "WARNING: Ref '$ref' points to the first one now." - rewritten=$(echo "$rewritten" | head -n 1) - git update-ref -m "filter-branch: rewrite to first" \ - "$ref" $rewritten $sha1 || - die "Could not rewrite $ref" - ;; - esac - git update-ref -m "filter-branch: backup" "$orig_namespace$ref" $sha1 || - exit -done < "$tempdir"/heads - -# TODO: This should possibly go, with the semantics that all positive given -# refs are updated, and their original heads stored in refs/original/ -# Filter tags - -if [ "$filter_tag_name" ]; then - git for-each-ref --format='%(objectname) %(objecttype) %(refname)' refs/tags | - while read sha1 type ref; do - ref="${ref#refs/tags/}" - # XXX: Rewrite tagged trees as well? - if [ "$type" != "commit" -a "$type" != "tag" ]; then - continue; - fi - - if [ "$type" = "tag" ]; then - # Dereference to a commit - sha1t="$sha1" - sha1="$(git rev-parse -q "$sha1"^{commit})" || continue - fi - - [ -f "../map/$sha1" ] || continue - new_sha1="$(cat "../map/$sha1")" - GIT_COMMIT="$sha1" - export GIT_COMMIT - new_ref="$(echo "$ref" | eval "$filter_tag_name")" || - die "tag name filter failed: $filter_tag_name" - - echo "$ref -> $new_ref ($sha1 -> $new_sha1)" - - if [ "$type" = "tag" ]; then - new_sha1=$( ( printf 'object %s\ntype commit\ntag %s\n' \ - "$new_sha1" "$new_ref" - git cat-file tag "$ref" | - awk '/^tagger/ { tagged=1 } - /^$/ { if (!tagged && !done) { print "tagger Unknown <unknown@example.com> 0 +0000" } ; done=1 } - // { print }' | - sed -n \ - -e '1,/^$/{ - /^object /d - /^type /d - /^tag /d - }' \ - -e '/^-----BEGIN PGP SIGNATURE-----/q' \ - -e 'p' ) | - git mktag) || - die "Could not create new tag object for $ref" - if git cat-file tag "$ref" | \ - sane_grep '^-----BEGIN PGP SIGNATURE-----' >/dev/null 2>&1 - then - warn "gpg signature stripped from tag object $sha1t" - fi - fi - - git update-ref "refs/tags/$new_ref" "$new_sha1" || - die "Could not write tag $new_ref" - done -fi - -if [ -n "$state_branch" ] ; then - echo "Saving rewrite state to $state_branch" 1>&2 - STATE_BLOB=$(ls ../map | - perl -n -e 'chomp(); - open F, "<../map/$_" or die; - chomp($f = <F>); print "$_:$f\n";' | - git hash-object -w --stdin ) - STATE_TREE=$(/bin/echo -e "100644 blob $STATE_BLOB\tfilter.map" | git mktree) - STATE_PARENT=$(git show-ref -s "$state_branch") - unset GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE - unset GIT_COMMITTER_NAME GIT_COMMITTER_EMAIL GIT_COMMITTER_DATE - if [ -n "$STATE_PARENT" ] ; then - STATE_COMMIT=$(/bin/echo "Sync" | git commit-tree "$STATE_TREE" -p "$STATE_PARENT") - else - STATE_COMMIT=$(/bin/echo "Sync" | git commit-tree "$STATE_TREE" ) - fi - git update-ref "$state_branch" "$STATE_COMMIT" -fi - -cd ../.. -rm -rf "$tempdir" - -trap - 0 - -unset GIT_DIR GIT_WORK_TREE GIT_INDEX_FILE -test -z "$ORIG_GIT_DIR" || { - GIT_DIR="$ORIG_GIT_DIR" && export GIT_DIR -} -test -z "$ORIG_GIT_WORK_TREE" || { - GIT_WORK_TREE="$ORIG_GIT_WORK_TREE" && - export GIT_WORK_TREE -} -test -z "$ORIG_GIT_INDEX_FILE" || { - GIT_INDEX_FILE="$ORIG_GIT_INDEX_FILE" && - export GIT_INDEX_FILE -} - -if [ "$(is_bare_repository)" = false ]; then - git read-tree -u -m HEAD || exit -fi - -exit 0 |