diff options
Diffstat (limited to 'git-sh-setup.sh')
| -rw-r--r--[-rwxr-xr-x] | git-sh-setup.sh | 232 |
1 files changed, 167 insertions, 65 deletions
diff --git a/git-sh-setup.sh b/git-sh-setup.sh index c41c2f7439..795edd2852 100755..100644 --- a/git-sh-setup.sh +++ b/git-sh-setup.sh @@ -9,8 +9,15 @@ # 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, but some shells (e.g. FreeBSD 7.2) are buggy and +# do not equate an unset IFS with IFS with the default, so here is +# an explicit SP HT LF. +IFS=' +' + git_broken_path_fix () { case ":$PATH:" in *:$1:*) : ok ;; @@ -39,9 +46,15 @@ git_broken_path_fix () { # @@BROKEN_PATH_FIX@@ -die() { - echo >&2 "$@" - exit 1 +die () { + die_with_status 1 "$@" +} + +die_with_status () { + status=$1 + shift + echo >&2 "$*" + exit "$status" } GIT_QUIET= @@ -84,7 +97,7 @@ $LONG_USAGE" fi case "$1" in - -h|--h|--he|--hel|--help) + -h) echo "$LONG_USAGE" exit esac @@ -99,19 +112,33 @@ 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 "$@" } is_bare_repository () { @@ -119,54 +146,142 @@ is_bare_repository () { } cd_to_toplevel () { - cdup=$(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 - # 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 - } + 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 +} + +# Generate a sed script to parse identities from a commit. +# +# Reads the commit from stdin, which should be in raw format (e.g., from +# cat-file or "--pretty=raw"). +# +# The first argument specifies the ident line to parse (e.g., "author"), and +# the second specifies the environment variable to put it in (e.g., "AUTHOR" +# for "GIT_AUTHOR_*"). Multiple pairs can be given to parse author and +# committer. +pick_ident_script () { + while test $# -gt 0 + do + lid=$1; shift + uid=$1; shift + printf '%s' " + /^$lid /{ + s/'/'\\\\''/g + h + s/^$lid "'\([^<]*\) <[^>]*> .*$/\1/'" + s/.*/GIT_${uid}_NAME='&'/p + + g + s/^$lid "'[^<]* <\([^>]*\)> .*$/\1/'" + s/.*/GIT_${uid}_EMAIL='&'/p + + g + s/^$lid "'[^<]* <[^>]*> \(.*\)$/@\1/'" + s/.*/GIT_${uid}_DATE='&'/p + } + " + done + echo '/^$/q' +} + +# Create a pick-script as above and feed it to sed. Stdout is suitable for +# feeding to eval. +parse_ident_from_commit () { + LANG=C LC_ALL=C sed -ne "$(pick_ident_script "$@")" +} + +# Parse the author from a commit given as an argument. Stdout is suitable for +# feeding to eval to set the usual GIT_* ident variables. 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" + parse_ident_from_commit author AUTHOR +} + +# 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" @@ -186,16 +301,3 @@ then } : ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"} fi - -# Fix some commands on Windows -case $(uname -s) in -*MINGW*) - # Windows has its own (incompatible) sort and find - sort () { - /usr/bin/sort "$@" - } - find () { - /usr/bin/find "$@" - } - ;; -esac |