mv: make non-directory destination error more clear

[git.git] / git-sh-setup.sh

diff --git a/git-sh-setup.sh b/git-sh-setup.sh
old mode 100755 (executable)
new mode 100644 (file)
index dbdf209..94e26ed
--- a/git-sh-setup.sh
+++ b/git-sh-setup.sh
@@ -11,11 +11,48 @@
 # exporting it.
 unset CDPATH
 
+git_broken_path_fix () {
+       case ":$PATH:" in
+       *:$1:*) : ok ;;
+       *)
+               PATH=$(
+                       SANE_TOOL_PATH="$1"
+                       IFS=: path= sep=
+                       set x $PATH
+                       shift
+                       for elem
+                       do
+                               case "$SANE_TOOL_PATH:$elem" in
+                               (?*:/bin | ?*:/usr/bin)
+                                       path="$path$sep$SANE_TOOL_PATH"
+                                       sep=:
+                                       SANE_TOOL_PATH=
+                               esac
+                               path="$path$sep$elem"
+                               sep=:
+                       done
+                       echo "$path"
+               )
+               ;;
+       esac
+}
+
+# @@BROKEN_PATH_FIX@@
+
 die() {
        echo >&2 "$@"
        exit 1
 }
 
+GIT_QUIET=
+
+say () {
+       if test -z "$GIT_QUIET"
+       then
+               printf '%s\n' "$*"
+       fi
+}
+
 if test -n "$OPTIONS_SPEC"; then
        usage() {
                "$0" -h
@@ -62,19 +99,33 @@ set_reflog_action() {
 }
 
 git_editor() {
-       : "${GIT_EDITOR:=$(git config core.editor)}"
-       : "${GIT_EDITOR:=${VISUAL:-${EDITOR}}}"
-       case "$GIT_EDITOR,$TERM" in
-       ,dumb)
-               echo >&2 "No editor specified in GIT_EDITOR, core.editor, VISUAL,"
-               echo >&2 "or EDITOR. Tried to fall back to vi but terminal is dumb."
-               echo >&2 "Please set one of these variables to an appropriate"
-               echo >&2 "editor or run $0 with options that will not cause an"
-               echo >&2 "editor to be invoked (e.g., -m or -F for git-commit)."
-               exit 1
-               ;;
-       esac
-       eval "${GIT_EDITOR:=vi}" '"$@"'
+       if test -z "${GIT_EDITOR:+set}"
+       then
+               GIT_EDITOR="$(git var GIT_EDITOR)" || return $?
+       fi
+
+       eval "$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" '"$@"'
+}
+
+sane_grep () {
+       GREP_OPTIONS= LC_ALL=C grep "$@"
+}
+
+sane_egrep () {
+       GREP_OPTIONS= LC_ALL=C egrep "$@"
 }
 
 is_bare_repository () {
@@ -82,38 +133,68 @@ is_bare_repository () {
 }
 
 cd_to_toplevel () {
-       cdup=$(git rev-parse --show-cdup)
-       if test ! -z "$cdup"
+       cdup=$(git rev-parse --show-toplevel) &&
+       cd "$cdup" || {
+               echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree"
+               exit 1
+       }
+}
+
+require_work_tree_exists () {
+       if test "z$(git rev-parse --is-bare-repository)" != zfalse
        then
-               cd "$cdup" || {
-                       echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree"
-                       exit 1
-               }
+               die "fatal: $0 cannot be used without a working tree."
        fi
 }
 
 require_work_tree () {
-       test $(git rev-parse --is-inside-work-tree) = true ||
+       test "$(git rev-parse --is-inside-work-tree 2>/dev/null)" = true ||
        die "fatal: $0 cannot be used without a working tree."
 }
 
+require_clean_work_tree () {
+       git rev-parse --verify HEAD >/dev/null || exit 1
+       git update-index -q --ignore-submodules --refresh
+       err=0
+
+       if ! git diff-files --quiet --ignore-submodules
+       then
+               echo >&2 "Cannot $1: You have unstaged changes."
+               err=1
+       fi
+
+       if ! git diff-index --cached --quiet --ignore-submodules HEAD --
+       then
+               if [ $err = 0 ]
+               then
+                   echo >&2 "Cannot $1: Your index contains uncommitted changes."
+               else
+                   echo >&2 "Additionally, your index contains uncommitted changes."
+               fi
+               err=1
+       fi
+
+       if [ $err = 1 ]
+       then
+               test -n "$2" && echo >&2 "$2"
+               exit 1
+       fi
+}
+
 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
@@ -124,6 +205,13 @@ 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"
@@ -154,5 +242,20 @@ case $(uname -s) in
        find () {
                /usr/bin/find "$@"
        }
+       is_absolute_path () {
+               case "$1" in
+               [/\\]* | [A-Za-z]:*)
+                       return 0 ;;
+               esac
+               return 1
+       }
        ;;
+*)
+       is_absolute_path () {
+               case "$1" in
+               /*)
+                       return 0 ;;
+               esac
+               return 1
+       }
 esac