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Diffstat (limited to 'git-sh-setup.sh')
| -rw-r--r-- | git-sh-setup.sh | 276 |
1 files changed, 276 insertions, 0 deletions
diff --git a/git-sh-setup.sh b/git-sh-setup.sh new file mode 100644 index 0000000000..ee0e0bc045 --- /dev/null +++ b/git-sh-setup.sh @@ -0,0 +1,276 @@ +#!/bin/sh +# +# This is included in commands that either have to be run from the toplevel +# of the repository, or with GIT_DIR environment variable properly. +# If the GIT_DIR does not look like the right correct git-repository, +# it dies. + +# Having this variable in your environment would break scripts because +# you would cause "cd" to be taken to unexpected places. If you +# like CDPATH, define it for your interactive shell sessions without +# exporting it. +# But we protect ourselves from such a user mistake nevertheless. +unset CDPATH + +# Similarly for IFS +unset IFS + +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 () { + die_with_status 1 "$@" +} + +die_with_status () { + status=$1 + shift + echo >&2 "$*" + exit "$status" +} + +GIT_QUIET= + +say () { + if test -z "$GIT_QUIET" + then + printf '%s\n' "$*" + fi +} + +if test -n "$OPTIONS_SPEC"; then + usage() { + "$0" -h + exit 1 + } + + parseopt_extra= + [ -n "$OPTIONS_KEEPDASHDASH" ] && + parseopt_extra="--keep-dashdash" + + eval "$( + echo "$OPTIONS_SPEC" | + git rev-parse --parseopt $parseopt_extra -- "$@" || + echo exit $? + )" +else + dashless=$(basename "$0" | sed -e 's/-/ /') + usage() { + die "Usage: $dashless $USAGE" + } + + if [ -z "$LONG_USAGE" ] + then + LONG_USAGE="Usage: $dashless $USAGE" + else + LONG_USAGE="Usage: $dashless $USAGE + +$LONG_USAGE" + fi + + case "$1" in + -h) + echo "$LONG_USAGE" + exit + esac +fi + +set_reflog_action() { + if [ -z "${GIT_REFLOG_ACTION:+set}" ] + then + GIT_REFLOG_ACTION="$*" + export GIT_REFLOG_ACTION + fi +} + +git_editor() { + 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 "$@" +} + +is_bare_repository () { + git rev-parse --is-bare-repository +} + +cd_to_toplevel () { + cdup=$(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 + die "fatal: $0 cannot be used without a working tree." + fi +} + +require_work_tree () { + test "$(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/.*/GIT_AUTHOR_NAME='\''&'\''/p + + g + s/^author [^<]* <\([^>]*\)> .*$/\1/ + s/.*/GIT_AUTHOR_EMAIL='\''&'\''/p + + g + s/^author [^<]* <[^>]*> \(.*\)$/@\1/ + s/.*/GIT_AUTHOR_DATE='\''&'\''/p + + q + } + ' + encoding=$(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" +} + +# 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) +} + + +# Platform specific tweaks to work around some commands +case $(uname -s) in +*MINGW*) + # Windows has its own (incompatible) sort and find + sort () { + /usr/bin/sort "$@" + } + find () { + /usr/bin/find "$@" + } + # git sees Windows-style pwd + pwd () { + builtin pwd -W + } + is_absolute_path () { + case "$1" in + [/\\]* | [A-Za-z]:*) + return 0 ;; + esac + return 1 + } + ;; +*) + is_absolute_path () { + case "$1" in + /*) + return 0 ;; + esac + return 1 + } +esac + +# Make sure we are in a valid repository of a vintage we understand, +# if we require to be in a git repository. +if test -z "$NONGIT_OK" +then + GIT_DIR=$(git rev-parse --git-dir) || exit + if [ -z "$SUBDIRECTORY_OK" ] + then + test -z "$(git rev-parse --show-cdup)" || { + exit=$? + echo >&2 "You need to run this command from the toplevel of the working tree." + exit $exit + } + fi + test -n "$GIT_DIR" && GIT_DIR=$(cd "$GIT_DIR" && pwd) || { + echo >&2 "Unable to determine absolute path of git directory" + exit 1 + } + : ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"} +fi |