Move the pick_author code to git-sh-setup

At the moment, only git-commit uses that code, to pick the author name,
email and date from a given commit.

This code will be reused in git rebase --interactive.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/git-commit.sh b/git-commit.sh
index 5547a02954b23425e644d0b30ae6047afa393ac0..d43bdd87c0dcc04447bac2e6ca6a5f19d5f99316 100755 (executable)
--- a/git-commit.sh
+++ b/git-commit.sh
@@ -483,34 +483,8 @@ fi >>"$GIT_DIR"/COMMIT_EDITMSG
 # Author
 if test '' != "$use_commit"
 then
-       pick_author_script='
-       /^author /{
-               s/'\''/'\''\\'\'\''/g
-               h
-               s/^author \([^<]*\) <[^>]*> .*$/\1/
-               s/'\''/'\''\'\'\''/g
-               s/.*/GIT_AUTHOR_NAME='\''&'\''/p
-
-               g
-               s/^author [^<]* <\([^>]*\)> .*$/\1/
-               s/'\''/'\''\'\'\''/g
-               s/.*/GIT_AUTHOR_EMAIL='\''&'\''/p
-
-               g
-               s/^author [^<]* <[^>]*> \(.*\)$/\1/
-               s/'\''/'\''\'\'\''/g
-               s/.*/GIT_AUTHOR_DATE='\''&'\''/p
-
-               q
-       }
-       '
-       encoding=$(git config i18n.commitencoding || echo UTF-8)
-       set_author_env=`git show -s --pretty=raw --encoding="$encoding" "$use_commit" |
-       LANG=C LC_ALL=C sed -ne "$pick_author_script"`
-       eval "$set_author_env"
-       export GIT_AUTHOR_NAME
-       export GIT_AUTHOR_EMAIL
-       export GIT_AUTHOR_DATE
+       eval "$(get_author_ident_from_commit "$use_commit")"
+       export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
 fi
 if test '' != "$force_author"
 then

diff --git a/git-sh-setup.sh b/git-sh-setup.sh
index f24c7f2d23c13e9874308a019f3c0f93225de3c0..d861db3b2807c1c23141f5e7d346a694104b6a21 100755 (executable)
--- a/git-sh-setup.sh
+++ b/git-sh-setup.sh
@@ -53,6 +53,33 @@ require_work_tree () {
        die "fatal: $0 cannot be used without a working tree."
 }
 
+get_author_ident_from_commit () {
+       pick_author_script='
+       /^author /{
+               s/'\''/'\''\\'\'\''/g
+               h
+               s/^author \([^<]*\) <[^>]*> .*$/\1/
+               s/'\''/'\''\'\'\''/g
+               s/.*/GIT_AUTHOR_NAME='\''&'\''/p
+
+               g
+               s/^author [^<]* <\([^>]*\)> .*$/\1/
+               s/'\''/'\''\'\'\''/g
+               s/.*/GIT_AUTHOR_EMAIL='\''&'\''/p
+
+               g
+               s/^author [^<]* <[^>]*> \(.*\)$/\1/
+               s/'\''/'\''\'\'\''/g
+               s/.*/GIT_AUTHOR_DATE='\''&'\''/p
+
+               q
+       }
+       '
+       encoding=$(git config i18n.commitencoding || echo UTF-8)
+       git show -s --pretty=raw --encoding="$encoding" "$1" |
+       LANG=C LC_ALL=C sed -ne "$pick_author_script"
+}
+
 if [ -z "$LONG_USAGE" ]
 then
        LONG_USAGE="Usage: $0 $USAGE"