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git-commit-vandalism/contrib/examples/git-commit.sh
Junio C Hamano 0e6e1a5fbd Merge branch 'ep/shell-command-substitution' 
* ep/shell-command-substitution:
  t9362-mw-to-git-utf8.sh: use the $( ... ) construct for command substitution
  t9360-mw-to-git-clone.sh: use the $( ... ) construct for command substitution
  git-tag.sh: use the $( ... ) construct for command substitution
  git-revert.sh: use the $( ... ) construct for command substitution
  git-resolve.sh: use the $( ... ) construct for command substitution
  git-repack.sh: use the $( ... ) construct for command substitution
  git-merge.sh: use the $( ... ) construct for command substitution
  git-ls-remote.sh: use the $( ... ) construct for command substitution
  git-fetch.sh: use the $( ... ) construct for command substitution
  git-commit.sh: use the $( ... ) construct for command substitution
  git-clone.sh: use the $( ... ) construct for command substitution
  git-checkout.sh: use the $( ... ) construct for command substitution
  install-webdoc.sh: use the $( ... ) construct for command substitution
  howto-index.sh: use the $( ... ) construct for command substitution
2014-04-21 10:42:42 -07:00

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#!/bin/sh
#
# Copyright (c) 2005 Linus Torvalds
# Copyright (c) 2006 Junio C Hamano
USAGE='[-a | --interactive] [-s] [-v] [--no-verify] [-m <message> | -F <logfile> | (-C|-c) <commit> | --amend] [-u] [-e] [--author <author>] [--template <file>] [[-i | -o] <path>...]'
SUBDIRECTORY_OK=Yes
OPTIONS_SPEC=
. git-sh-setup
require_work_tree
git rev-parse --verify HEAD >/dev/null 2>&1 || initial_commit=t
case "$0" in
*status)
status_only=t
;;
*commit)
status_only=
;;
esac
refuse_partial () {
echo >&2 "$1"
echo >&2 "You might have meant to say 'git commit -i paths...', perhaps?"
exit 1
}
TMP_INDEX=
THIS_INDEX="${GIT_INDEX_FILE:-$GIT_DIR/index}"
NEXT_INDEX="$GIT_DIR/next-index$$"
rm -f "$NEXT_INDEX"
save_index () {
cp -p "$THIS_INDEX" "$NEXT_INDEX"
}
run_status () {
# If TMP_INDEX is defined, that means we are doing
# "--only" partial commit, and that index file is used
# to build the tree for the commit. Otherwise, if
# NEXT_INDEX exists, that is the index file used to
# make the commit. Otherwise we are using as-is commit
# so the regular index file is what we use to compare.
if test '' != "$TMP_INDEX"
then
GIT_INDEX_FILE="$TMP_INDEX"
export GIT_INDEX_FILE
elif test -f "$NEXT_INDEX"
then
GIT_INDEX_FILE="$NEXT_INDEX"
export GIT_INDEX_FILE
fi
if test "$status_only" = "t" -o "$use_status_color" = "t"; then
color=
else
color=--nocolor
fi
git runstatus ${color} \
${verbose:+--verbose} \
${amend:+--amend} \
${untracked_files:+--untracked}
}
trap '
test -z "$TMP_INDEX" || {
test -f "$TMP_INDEX" && rm -f "$TMP_INDEX"
}
rm -f "$NEXT_INDEX"
' 0
################################################################
# Command line argument parsing and sanity checking
all=
also=
allow_empty=f
interactive=
only=
logfile=
use_commit=
amend=
edit_flag=
no_edit=
log_given=
log_message=
verify=t
quiet=
verbose=
signoff=
force_author=
only_include_assumed=
untracked_files=
templatefile="$(git config commit.template)"
while test $# != 0
do
case "$1" in
-F|--F|-f|--f|--fi|--fil|--file)
case "$#" in 1) usage ;; esac
shift
no_edit=t
log_given=t$log_given
logfile="$1"
;;
-F*|-f*)
no_edit=t
log_given=t$log_given
logfile="${1#-[Ff]}"
;;
--F=*|--f=*|--fi=*|--fil=*|--file=*)
no_edit=t
log_given=t$log_given
logfile="${1#*=}"
;;
-a|--a|--al|--all)
all=t
;;
--allo|--allow|--allow-|--allow-e|--allow-em|--allow-emp|\
--allow-empt|--allow-empty)
allow_empty=t
;;
--au=*|--aut=*|--auth=*|--autho=*|--author=*)
force_author="${1#*=}"
;;
--au|--aut|--auth|--autho|--author)
case "$#" in 1) usage ;; esac
shift
force_author="$1"
;;
-e|--e|--ed|--edi|--edit)
edit_flag=t
;;
-i|--i|--in|--inc|--incl|--inclu|--includ|--include)
also=t
;;
--int|--inte|--inter|--intera|--interac|--interact|--interacti|\
--interactiv|--interactive)
interactive=t
;;
-o|--o|--on|--onl|--only)
only=t
;;
-m|--m|--me|--mes|--mess|--messa|--messag|--message)
case "$#" in 1) usage ;; esac
shift
log_given=m$log_given
log_message="${log_message:+${log_message}
}$1"
no_edit=t
;;
-m*)
log_given=m$log_given
log_message="${log_message:+${log_message}
}${1#-m}"
no_edit=t
;;
--m=*|--me=*|--mes=*|--mess=*|--messa=*|--messag=*|--message=*)
log_given=m$log_given
log_message="${log_message:+${log_message}
}${1#*=}"
no_edit=t
;;
-n|--n|--no|--no-|--no-v|--no-ve|--no-ver|--no-veri|--no-verif|\
--no-verify)
verify=
;;
--a|--am|--ame|--amen|--amend)
amend=t
use_commit=HEAD
;;
-c)
case "$#" in 1) usage ;; esac
shift
log_given=t$log_given
use_commit="$1"
no_edit=
;;
--ree=*|--reed=*|--reedi=*|--reedit=*|--reedit-=*|--reedit-m=*|\
--reedit-me=*|--reedit-mes=*|--reedit-mess=*|--reedit-messa=*|\
--reedit-messag=*|--reedit-message=*)
log_given=t$log_given
use_commit="${1#*=}"
no_edit=
;;
--ree|--reed|--reedi|--reedit|--reedit-|--reedit-m|--reedit-me|\
--reedit-mes|--reedit-mess|--reedit-messa|--reedit-messag|\
--reedit-message)
case "$#" in 1) usage ;; esac
shift
log_given=t$log_given
use_commit="$1"
no_edit=
;;
-C)
case "$#" in 1) usage ;; esac
shift
log_given=t$log_given
use_commit="$1"
no_edit=t
;;
--reu=*|--reus=*|--reuse=*|--reuse-=*|--reuse-m=*|--reuse-me=*|\
--reuse-mes=*|--reuse-mess=*|--reuse-messa=*|--reuse-messag=*|\
--reuse-message=*)
log_given=t$log_given
use_commit="${1#*=}"
no_edit=t
;;
--reu|--reus|--reuse|--reuse-|--reuse-m|--reuse-me|--reuse-mes|\
--reuse-mess|--reuse-messa|--reuse-messag|--reuse-message)
case "$#" in 1) usage ;; esac
shift
log_given=t$log_given
use_commit="$1"
no_edit=t
;;
-s|--s|--si|--sig|--sign|--signo|--signof|--signoff)
signoff=t
;;
-t|--t|--te|--tem|--temp|--templ|--templa|--templat|--template)
case "$#" in 1) usage ;; esac
shift
templatefile="$1"
no_edit=
;;
-q|--q|--qu|--qui|--quie|--quiet)
quiet=t
;;
-v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
verbose=t
;;
-u|--u|--un|--unt|--untr|--untra|--untrac|--untrack|--untracke|\
--untracked|--untracked-|--untracked-f|--untracked-fi|--untracked-fil|\
--untracked-file|--untracked-files)
untracked_files=t
;;
--)
shift
break
;;
-*)
usage
;;
*)
break
;;
esac
shift
done
case "$edit_flag" in t) no_edit= ;; esac
################################################################
# Sanity check options
case "$amend,$initial_commit" in
t,t)
die "You do not have anything to amend." ;;
t,)
if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
die "You are in the middle of a merge -- cannot amend."
fi ;;
esac
case "$log_given" in
tt*)
die "Only one of -c/-C/-F can be used." ;;
*tm*|*mt*)
die "Option -m cannot be combined with -c/-C/-F." ;;
esac
case "$#,$also,$only,$amend" in
*,t,t,*)
die "Only one of --include/--only can be used." ;;
0,t,,* | 0,,t,)
die "No paths with --include/--only does not make sense." ;;
0,,t,t)
only_include_assumed="# Clever... amending the last one with dirty index." ;;
0,,,*)
;;
*,,,*)
only_include_assumed="# Explicit paths specified without -i or -o; assuming --only paths..."
also=
;;
esac
unset only
case "$all,$interactive,$also,$#" in
*t,*t,*)
die "Cannot use -a, --interactive or -i at the same time." ;;
t,,,[1-9]*)
die "Paths with -a does not make sense." ;;
,t,,[1-9]*)
die "Paths with --interactive does not make sense." ;;
,,t,0)
die "No paths with -i does not make sense." ;;
esac
if test ! -z "$templatefile" -a -z "$log_given"
then
if test ! -f "$templatefile"
then
die "Commit template file does not exist."
fi
fi
################################################################
# Prepare index to have a tree to be committed
case "$all,$also" in
t,)
if test ! -f "$THIS_INDEX"
then
die 'nothing to commit (use "git add file1 file2" to include for commit)'
fi
save_index &&
(
cd_to_toplevel &&
GIT_INDEX_FILE="$NEXT_INDEX" &&
export GIT_INDEX_FILE &&
git diff-files --name-only -z |
git update-index --remove -z --stdin
) || exit
;;
,t)
save_index &&
git ls-files --error-unmatch -- "$@" >/dev/null || exit
git diff-files --name-only -z -- "$@" |
(
cd_to_toplevel &&
GIT_INDEX_FILE="$NEXT_INDEX" &&
export GIT_INDEX_FILE &&
git update-index --remove -z --stdin
) || exit
;;
,)
if test "$interactive" = t; then
git add --interactive || exit
fi
case "$#" in
0)
;; # commit as-is
*)
if test -f "$GIT_DIR/MERGE_HEAD"
then
refuse_partial "Cannot do a partial commit during a merge."
fi
TMP_INDEX="$GIT_DIR/tmp-index$$"
W=
test -z "$initial_commit" && W=--with-tree=HEAD
commit_only=$(git ls-files --error-unmatch $W -- "$@") || exit
# Build a temporary index and update the real index
# the same way.
if test -z "$initial_commit"
then
GIT_INDEX_FILE="$THIS_INDEX" \
git read-tree --index-output="$TMP_INDEX" -i -m HEAD
else
rm -f "$TMP_INDEX"
fi || exit
printf '%s\n' "$commit_only" |
GIT_INDEX_FILE="$TMP_INDEX" \
git update-index --add --remove --stdin &&
save_index &&
printf '%s\n' "$commit_only" |
(
GIT_INDEX_FILE="$NEXT_INDEX"
export GIT_INDEX_FILE
git update-index --add --remove --stdin
) || exit
;;
esac
;;
esac
################################################################
# If we do as-is commit, the index file will be THIS_INDEX,
# otherwise NEXT_INDEX after we make this commit. We leave
# the index as is if we abort.
if test -f "$NEXT_INDEX"
then
USE_INDEX="$NEXT_INDEX"
else
USE_INDEX="$THIS_INDEX"
fi
case "$status_only" in
t)
# This will silently fail in a read-only repository, which is
# what we want.
GIT_INDEX_FILE="$USE_INDEX" git update-index -q --unmerged --refresh
run_status
exit $?
;;
'')
GIT_INDEX_FILE="$USE_INDEX" git update-index -q --refresh || exit
;;
esac
################################################################
# Grab commit message, write out tree and make commit.
if test t = "$verify" && test -x "$GIT_DIR"/hooks/pre-commit
then
GIT_INDEX_FILE="${TMP_INDEX:-${USE_INDEX}}" "$GIT_DIR"/hooks/pre-commit \
|| exit
fi
if test "$log_message" != ''
then
printf '%s\n' "$log_message"
elif test "$logfile" != ""
then
if test "$logfile" = -
then
test -t 0 &&
echo >&2 "(reading log message from standard input)"
cat
else
cat <"$logfile"
fi
elif test "$use_commit" != ""
then
encoding=$(git config i18n.commitencoding || echo UTF-8)
git show -s --pretty=raw --encoding="$encoding" "$use_commit" |
sed -e '1,/^$/d' -e 's/^ //'
elif test -f "$GIT_DIR/MERGE_MSG"
then
cat "$GIT_DIR/MERGE_MSG"
elif test -f "$GIT_DIR/SQUASH_MSG"
then
cat "$GIT_DIR/SQUASH_MSG"
elif test "$templatefile" != ""
then
cat "$templatefile"
fi | git stripspace >"$GIT_DIR"/COMMIT_EDITMSG
case "$signoff" in
t)
sign=$(git var GIT_COMMITTER_IDENT | sed -e '
s/>.*/>/
s/^/Signed-off-by: /
')
blank_before_signoff=
tail -n 1 "$GIT_DIR"/COMMIT_EDITMSG |
grep 'Signed-off-by:' >/dev/null || blank_before_signoff='
'
tail -n 1 "$GIT_DIR"/COMMIT_EDITMSG |
grep "$sign"$ >/dev/null ||
printf '%s%s\n' "$blank_before_signoff" "$sign" \
>>"$GIT_DIR"/COMMIT_EDITMSG
;;
esac
if test -f "$GIT_DIR/MERGE_HEAD" && test -z "$no_edit"; then
echo "#"
echo "# It looks like you may be committing a MERGE."
echo "# If this is not correct, please remove the file"
printf '%s\n' "# $GIT_DIR/MERGE_HEAD"
echo "# and try again"
echo "#"
fi >>"$GIT_DIR"/COMMIT_EDITMSG
# Author
if test '' != "$use_commit"
then
eval "$(get_author_ident_from_commit "$use_commit")"
export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
fi
if test '' != "$force_author"
then
GIT_AUTHOR_NAME=$(expr "z$force_author" : 'z\(.*[^ ]\) *<.*') &&
GIT_AUTHOR_EMAIL=$(expr "z$force_author" : '.*\(<.*\)') &&
test '' != "$GIT_AUTHOR_NAME" &&
test '' != "$GIT_AUTHOR_EMAIL" ||
die "malformed --author parameter"
export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL
fi
PARENTS="-p HEAD"
if test -z "$initial_commit"
then
rloga='commit'
if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
rloga='commit (merge)'
PARENTS="-p HEAD "$(sed -e 's/^/-p /' "$GIT_DIR/MERGE_HEAD")
elif test -n "$amend"; then
rloga='commit (amend)'
PARENTS=$(git cat-file commit HEAD |
sed -n -e '/^$/q' -e 's/^parent /-p /p')
fi
current="$(git rev-parse --verify HEAD)"
else
if [ -z "$(git ls-files)" ]; then
echo >&2 'nothing to commit (use "git add file1 file2" to include for commit)'
exit 1
fi
PARENTS=""
rloga='commit (initial)'
current=''
fi
set_reflog_action "$rloga"
if test -z "$no_edit"
then
{
echo ""
echo "# Please enter the commit message for your changes."
echo "# (Comment lines starting with '#' will not be included)"
test -z "$only_include_assumed" || echo "$only_include_assumed"
run_status
} >>"$GIT_DIR"/COMMIT_EDITMSG
else
# we need to check if there is anything to commit
run_status >/dev/null
fi
case "$allow_empty,$?,$PARENTS" in
t,* | ?,0,* | ?,*,-p' '?*-p' '?*)
# an explicit --allow-empty, or a merge commit can record the
# same tree as its parent. Otherwise having commitable paths
# is required.
;;
*)
rm -f "$GIT_DIR/COMMIT_EDITMSG" "$GIT_DIR/SQUASH_MSG"
use_status_color=t
run_status
exit 1
esac
case "$no_edit" in
'')
git var GIT_AUTHOR_IDENT > /dev/null || die
git var GIT_COMMITTER_IDENT > /dev/null || die
git_editor "$GIT_DIR/COMMIT_EDITMSG"
;;
esac
case "$verify" in
t)
if test -x "$GIT_DIR"/hooks/commit-msg
then
"$GIT_DIR"/hooks/commit-msg "$GIT_DIR"/COMMIT_EDITMSG || exit
fi
esac
if test -z "$no_edit"
then
sed -e '
/^diff --git a\/.*/{
s///
q
}
/^#/d
' "$GIT_DIR"/COMMIT_EDITMSG
else
cat "$GIT_DIR"/COMMIT_EDITMSG
fi |
git stripspace >"$GIT_DIR"/COMMIT_MSG
# Test whether the commit message has any content we didn't supply.
have_commitmsg=
grep -v -i '^Signed-off-by' "$GIT_DIR"/COMMIT_MSG |
git stripspace > "$GIT_DIR"/COMMIT_BAREMSG
# Is the commit message totally empty?
if test -s "$GIT_DIR"/COMMIT_BAREMSG
then
if test "$templatefile" != ""
then
# Test whether this is just the unaltered template.
if cnt=`sed -e '/^#/d' < "$templatefile" |
git stripspace |
diff "$GIT_DIR"/COMMIT_BAREMSG - |
wc -l` &&
test 0 -lt $cnt
then
have_commitmsg=t
fi
else
# No template, so the content in the commit message must
# have come from the user.
have_commitmsg=t
fi
fi
rm -f "$GIT_DIR"/COMMIT_BAREMSG
if test "$have_commitmsg" = "t"
then
if test -z "$TMP_INDEX"
then
tree=$(GIT_INDEX_FILE="$USE_INDEX" git write-tree)
else
tree=$(GIT_INDEX_FILE="$TMP_INDEX" git write-tree) &&
rm -f "$TMP_INDEX"
fi &&
commit=$(git commit-tree $tree $PARENTS <"$GIT_DIR/COMMIT_MSG") &&
rlogm=$(sed -e 1q "$GIT_DIR"/COMMIT_MSG) &&
git update-ref -m "$GIT_REFLOG_ACTION: $rlogm" HEAD $commit "$current" &&
rm -f -- "$GIT_DIR/MERGE_HEAD" "$GIT_DIR/MERGE_MSG" &&
if test -f "$NEXT_INDEX"
then
mv "$NEXT_INDEX" "$THIS_INDEX"
else
: ;# happy
fi
else
echo >&2 "* no commit message? aborting commit."
false
fi
ret="$?"
rm -f "$GIT_DIR/COMMIT_MSG" "$GIT_DIR/COMMIT_EDITMSG" "$GIT_DIR/SQUASH_MSG"
cd_to_toplevel
git rerere
if test "$ret" = 0
then
git gc --auto
if test -x "$GIT_DIR"/hooks/post-commit
then
"$GIT_DIR"/hooks/post-commit
fi
if test -z "$quiet"
then
commit=`git diff-tree --always --shortstat --pretty="format:%h: %s"\
--abbrev --summary --root HEAD --`
echo "Created${initial_commit:+ initial} commit $commit"
fi
fi
exit "$ret"
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