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Update commit-msg hook to version from Gerrit 3.1.3
Includes the following commits (redacted to those that are relevant): da300bd9bd8 - Do not create a change id if gerrit.createChangeId == false 731eb42b8ae - Do not strip out "-- >8 --" comment in commit-msg hook 627d07c2bfc - Handle messages with only comments in the commit-msg hook 68296f71804 - Simplify the hook script using git-interpret-trailers Change-Id: I7a82836495427df3c5437ba88a9576b47629065f Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/255393 Reviewed-by: Mike Frysinger <vapier@google.com> Tested-by: David Pursehouse <dpursehouse@collab.net>
This commit is contained in:
David Pursehouse
parent
b57e633433
commit
3995ebd8c1
202
hooks/commit-msg
202
hooks/commit-msg
@ -1,5 +1,5 @@
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#!/bin/sh
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# From Gerrit Code Review 2.14.6
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# From Gerrit Code Review 3.1.3
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#
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# Part of Gerrit Code Review (https://www.gerritcodereview.com/)
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#
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@ -16,176 +16,48 @@
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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unset GREP_OPTIONS
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# avoid [[ which is not POSIX sh.
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if test "$#" != 1 ; then
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echo "$0 requires an argument."
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exit 1
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fi
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CHANGE_ID_AFTER="Bug|Depends-On|Issue|Test|Feature|Fixes|Fixed"
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MSG="$1"
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if test ! -f "$1" ; then
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echo "file does not exist: $1"
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exit 1
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fi
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# Check for, and add if missing, a unique Change-Id
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#
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add_ChangeId() {
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clean_message=`sed -e '
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/^diff --git .*/{
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s///
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q
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}
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/^Signed-off-by:/d
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/^#/d
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' "$MSG" | git stripspace`
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if test -z "$clean_message"
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then
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return
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fi
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# Do not create a change id if requested
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if test "false" = "`git config --bool --get gerrit.createChangeId`" ; then
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exit 0
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fi
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# Do not add Change-Id to temp commits
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if echo "$clean_message" | head -1 | grep -q '^\(fixup\|squash\)!'
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then
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return
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fi
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# $RANDOM will be undefined if not using bash, so don't use set -u
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random=$( (whoami ; hostname ; date; cat $1 ; echo $RANDOM) | git hash-object --stdin)
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dest="$1.tmp.${random}"
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if test "false" = "`git config --bool --get gerrit.createChangeId`"
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then
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return
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fi
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trap 'rm -f "${dest}"' EXIT
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# Does Change-Id: already exist? if so, exit (no change).
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if grep -i '^Change-Id:' "$MSG" >/dev/null
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then
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return
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fi
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if ! git stripspace --strip-comments < "$1" > "${dest}" ; then
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echo "cannot strip comments from $1"
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exit 1
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fi
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id=`_gen_ChangeId`
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T="$MSG.tmp.$$"
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AWK=awk
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if [ -x /usr/xpg4/bin/awk ]; then
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# Solaris AWK is just too broken
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AWK=/usr/xpg4/bin/awk
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fi
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if test ! -s "${dest}" ; then
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echo "file is empty: $1"
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exit 1
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fi
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# Get core.commentChar from git config or use default symbol
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commentChar=`git config --get core.commentChar`
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commentChar=${commentChar:-#}
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# Avoid the --in-place option which only appeared in Git 2.8
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# Avoid the --if-exists option which only appeared in Git 2.15
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if ! git -c trailer.ifexists=doNothing interpret-trailers \
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--trailer "Change-Id: I${random}" < "$1" > "${dest}" ; then
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echo "cannot insert change-id line in $1"
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exit 1
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fi
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# How this works:
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# - parse the commit message as (textLine+ blankLine*)*
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# - assume textLine+ to be a footer until proven otherwise
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# - exception: the first block is not footer (as it is the title)
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# - read textLine+ into a variable
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# - then count blankLines
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# - once the next textLine appears, print textLine+ blankLine* as these
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# aren't footer
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# - in END, the last textLine+ block is available for footer parsing
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$AWK '
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BEGIN {
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# while we start with the assumption that textLine+
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# is a footer, the first block is not.
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isFooter = 0
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footerComment = 0
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blankLines = 0
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}
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# Skip lines starting with commentChar without any spaces before it.
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/^'"$commentChar"'/ { next }
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# Skip the line starting with the diff command and everything after it,
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# up to the end of the file, assuming it is only patch data.
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# If more than one line before the diff was empty, strip all but one.
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/^diff --git / {
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blankLines = 0
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while (getline) { }
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next
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}
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# Count blank lines outside footer comments
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/^$/ && (footerComment == 0) {
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blankLines++
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next
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}
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# Catch footer comment
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/^\[[a-zA-Z0-9-]+:/ && (isFooter == 1) {
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footerComment = 1
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}
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/]$/ && (footerComment == 1) {
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footerComment = 2
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}
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# We have a non-blank line after blank lines. Handle this.
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(blankLines > 0) {
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print lines
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for (i = 0; i < blankLines; i++) {
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print ""
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}
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lines = ""
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blankLines = 0
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isFooter = 1
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footerComment = 0
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}
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# Detect that the current block is not the footer
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(footerComment == 0) && (!/^\[?[a-zA-Z0-9-]+:/ || /^[a-zA-Z0-9-]+:\/\//) {
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isFooter = 0
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}
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{
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# We need this information about the current last comment line
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if (footerComment == 2) {
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footerComment = 0
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}
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if (lines != "") {
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lines = lines "\n";
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}
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lines = lines $0
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}
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# Footer handling:
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# If the last block is considered a footer, splice in the Change-Id at the
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# right place.
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# Look for the right place to inject Change-Id by considering
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# CHANGE_ID_AFTER. Keys listed in it (case insensitive) come first,
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# then Change-Id, then everything else (eg. Signed-off-by:).
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#
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# Otherwise just print the last block, a new line and the Change-Id as a
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# block of its own.
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END {
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unprinted = 1
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if (isFooter == 0) {
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print lines "\n"
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lines = ""
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}
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changeIdAfter = "^(" tolower("'"$CHANGE_ID_AFTER"'") "):"
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numlines = split(lines, footer, "\n")
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for (line = 1; line <= numlines; line++) {
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if (unprinted && match(tolower(footer[line]), changeIdAfter) != 1) {
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unprinted = 0
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print "Change-Id: I'"$id"'"
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}
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print footer[line]
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}
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if (unprinted) {
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print "Change-Id: I'"$id"'"
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}
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}' "$MSG" > "$T" && mv "$T" "$MSG" || rm -f "$T"
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}
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_gen_ChangeIdInput() {
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echo "tree `git write-tree`"
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if parent=`git rev-parse "HEAD^0" 2>/dev/null`
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then
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echo "parent $parent"
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fi
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echo "author `git var GIT_AUTHOR_IDENT`"
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echo "committer `git var GIT_COMMITTER_IDENT`"
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echo
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printf '%s' "$clean_message"
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}
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_gen_ChangeId() {
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_gen_ChangeIdInput |
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git hash-object -t commit --stdin
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}
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add_ChangeId
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if ! mv "${dest}" "$1" ; then
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echo "cannot mv ${dest} to $1"
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exit 1
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fi
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