fmt-merge-msg: minor refactor of fmt_merge_msg()

diff --git a/git-sh-setup.sh b/git-sh-setup.sh
old mode 100755 (executable)
new mode 100644 (file)
index dcf9d0a..6131670
--- a/git-sh-setup.sh
+++ b/git-sh-setup.sh
@@ -107,6 +107,19 @@ git_editor() {
        eval "$GIT_EDITOR" '"$@"'
 }
 
+git_pager() {
+       if test -t 1
+       then
+               GIT_PAGER=$(git var GIT_PAGER)
+       else
+               GIT_PAGER=cat
+       fi
+       : ${LESS=-FRSX}
+       export LESS
+
+       eval "$GIT_PAGER" '"$@"'
+}
+
 sane_grep () {
        GREP_OPTIONS= LC_ALL=C grep "$@"
 }
@@ -120,20 +133,11 @@ is_bare_repository () {
 }
 
 cd_to_toplevel () {
-       cdup=$(git rev-parse --show-cdup)
-       if test ! -z "$cdup"
-       then
-               # The "-P" option says to follow "physical" directory
-               # structure instead of following symbolic links.  When cdup is
-               # "../", this means following the ".." entry in the current
-               # directory instead textually removing a symlink path element
-               # from the PWD shell variable.  The "-P" behavior is more
-               # consistent with the C-style chdir used by most of Git.
-               cd -P "$cdup" || {
-                       echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree"
-                       exit 1
-               }
-       fi
+       cdup=$(git rev-parse --show-toplevel) &&
+       cd "$cdup" || {
+               echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree"
+               exit 1
+       }
 }
 
 require_work_tree () {
@@ -168,6 +172,13 @@ get_author_ident_from_commit () {
        LANG=C LC_ALL=C sed -ne "$pick_author_script"
 }
 
+# Clear repo-local GIT_* environment variables. Useful when switching to
+# another repository (e.g. when entering a submodule). See also the env
+# list in git_connect()
+clear_local_git_env() {
+       unset $(git rev-parse --local-env-vars)
+}
+
 # Make sure we are in a valid repository of a vintage we understand,
 # if we require to be in a git repository.
 if test -z "$NONGIT_OK"