309 lines
7.1 KiB
Text
309 lines
7.1 KiB
Text
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#!/bin/sh
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# $Id: ocs,v 1.4 2004/06/21 18:13:21 broeker Exp $
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# This utility maintains the database for cscope on a recursive dir set
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# Author: donwo Tue Jun 25 15:36:39 PDT 1996
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# Modified: hops Jan 2000 chg defaults to not update if files exist and force
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#
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# These comments ARE the manual. What more do you really need?
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# if using unadorned cscope with this use cscope -d so not trash db
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# cscope -L -0 <ptn> - to display ptn matches on stdout
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#
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# The lists of files are kept in two forms:
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# TMP cscope.tmplst
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# The list generated by this program
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# This list will be updated each time this program
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# is executed.
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#
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# LST cscope.lst
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# The fixed list generated by some other process
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# This list will be used, if found, rather than
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# the TMP form generated here.
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#
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# CSD cscope.csd
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# The fixed list generated by some other process
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# This list will be used, if found, rather than
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# the LST or TMP forms. CSD differs from LST in
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# that the CSD list is used where the source files
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# change only seldom. Cscope is requested not to
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# check for changed files. This can be
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# significantly faster on large source trees.
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#
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# INC cscope.inc
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# This is a list of additional directories
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# in which to search for include files.
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#
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# Three hierarchies of libraries are supported:
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# Local In the current directory ./
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# This is most useful for transient projects or
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# where the information is of no use to others on
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# the system. This type is NOT usable on source
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# directories that are read-only.
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# Home In users home directory $HOME/lib/cs/`pwd`
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# This is good for items that seldom change but are
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# of use only the the current user. This type is
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# usable on source directories that are read-only.
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# System In a global system directory $SYSDIR/`pwd`
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# This is for items that are of interest to all accounts.
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# This option is not available unless the system directory
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# is writable by the current user. This type is usable
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# on source directories that are read-only.
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#
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# If a shell script named ./cscope.rc is found and is
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# executable, the execution of it will be included within this
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# script after defaults_set/cmdline_parse and locating the
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# database.
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#
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# Command line options:
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# -x set shell debugging
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# -f force
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# o Do not ask about regenerating TMP. Just do it.
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# o Allow cscope to regenerate libraries for CSD lists.
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# -q Tell cscope to build an inverted index for quick
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# symbol searching. There is a SIGNIFICANT
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# increase in speed with this option however the
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# disk space used is doubled. Once the quick
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# database is generated, cs will detect the files
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# and continue to use them.
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# -d Do not regenerate. Intended for cscope sub-tasks.
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# -u Update/regenerate.
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#
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# Here is where we put things
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CSCOPE=cscope
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HOMEDIR=${HOME}/lib/cs
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#set the default value for SYSDIR
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if [ -z "${SYSDIR}" ]; then
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SYSDIR=/usr/local/lib/cs
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echo setting default sysdir
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fi
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#check that SYSDIR exists
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if [ ! -d ${SYSDIR} ]; then
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echo -n $SYSDIR does not exist.
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echo Please create the directory and set SYSDIR appropriately
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exit
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fi
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# Check that cscope is in PATH
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type cscope 1>/dev/null 2>&1
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if [ $? -ne 0 ]
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then
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echo "ERROR: cscope is not in \$PATH" >&2
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echo " Please set \$PATH correctly or make sure cscope is installed" >&2
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exit 1
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fi
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# popup editor
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#XCS_EDITOR=${HOME}/bin/x_cscope_editor
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XCS_EDITOR=${HOME}/bin/xme
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if [ -n "$DISPLAY" -a -x ${XCS_EDITOR} ]
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then
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EDITOR=${XCS_EDITOR}
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export EDITOR
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fi
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unset XCS_EDITOR
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#
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# Misc defaults
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#FORCE=N
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#NOUPDATE=
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FORCE=Y # hops - default to force rather than query
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NOUPDATE=-d # hops - default to no update if files already exist
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QUICK=
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SPECDEST= # hops - query for files
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#
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# Parse the command line
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set -- `getopt xfqdu $*`
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if [ $? -ne 0 ]
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then
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echo "Use: cs [-x] [-f] [-q] [-u]" >&2
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echo " -x debug on " >&2
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echo " -q quick Index - faster search but larger index" >&2
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echo " -f ask about about regeneration" >&2
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echo " -d don't update database (default)" >&2
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echo " -u update database" >&2
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echo " -s specify where files go" >&2
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exit 1
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fi
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for arg
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do
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case $arg in
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-x ) set -x; shift ;;
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-f ) FORCE=N; NOUPDATE=; shift;;
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-q ) QUICK=-q; shift ;;
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-d ) NOUPDATE=-d; shift ;;
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-u ) NOUPDATE=; shift ;;
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-s ) SPECDEST=Y; shift ;;
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esac
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done
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#
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# Here is the security hole. Execute whatever is needed for
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# this project. A per-project setup script may be available.
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[ -x ./cscope.rc ] && {
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. ./cscope.rc
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}
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#
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# We look hard for appropriate files to scope. We ignore items
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# containing "SCCS" assuming that these are directories of
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# source code control data.
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create_list()
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{
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LIST=$1
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if [ -f ${LIST} ]
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then
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[ -n "${NOUPDATE}" ] && return
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if [ "${FORCE}" != "Y" ]
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then
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echo "\n${LIST}"
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echo "Update the library? <(Y)es, (N)o, (Q)uit> [n] \c"
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read x y
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case $x in
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[Yy]* ) ;;
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[Qq]* ) exit 1 ;;
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*) return ;;
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esac
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fi
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echo "Updating library:\n ${LIST} \c"
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else
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echo "Creating library:\n ${LIST} \c"
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fi
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(
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find . -follow -type f \( -name \*.[sScChHlyG] -o \
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-name \*.asm -o \
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-name \*.cc -o \
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-name \*.cxx -o \
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-name \*.ccP -o \
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-name \*.hP -o \
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-name \*.inc -o \
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-name \*.ed -o \
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-name vuifile -o \
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-name Gensymvals -o \
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-name \[mM\]ake\* \) \
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-print
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) | grep -v SCCS | sort -u > ${LIST}
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echo "\n`cat ${LIST} | wc -l` files listed"
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}
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#
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# Expand the include file list into command line arguments
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exp_inc()
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{
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theInc=$1
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if [ -s "${theInc}" ]
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then
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for i in `cat ${theInc}`
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do
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echo "-I $i \c"
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done
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fi
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}
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#
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# This routine does not return to the caller
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do_cscope()
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{
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LIST=$1
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CSLIB=$2
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INC=$3
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shift;shift;shift
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ARGS="$*"
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INCARGS=`exp_inc ${INC}`
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echo "exec cscope"
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exec $CSCOPE ${ARGS} -p 2 ${INCARGS} -i ${LIST} -f ${CSLIB}
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echo "exec of $CSCOPE failed" >&2
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exit 1
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}
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#
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# If we have existing libraries, we should use them.
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std_libs()
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{
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DIR=$1
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OUT=${DIR}/cscope.out
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LST=${DIR}/cscope.lst
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CSD=${DIR}/cscope.csd
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TMP=${DIR}/cscope.tmplst
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INC=${DIR}/cscope.inc
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QCK=${DIR}/cscope.out.po
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[ -s ${QCK} ] && QUICK=-q
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[ -f ${CSD} ] && {
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if [ "${FORCE}" = "Y" ]
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then
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do_cscope ${CSD} ${OUT} ${INC} ${QUICK}
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else
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do_cscope ${CSD} ${OUT} ${INC} ${QUICK} -d
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fi
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}
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[ -f ${LST} ] && do_cscope ${LST} ${OUT} ${INC} ${QUICK} ${NOUPDATE}
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[ -f ${TMP} ] && {
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create_list ${TMP}
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do_cscope ${TMP} ${OUT} ${INC} ${QUICK} ${NOUPDATE}
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}
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}
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#
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# ######## main() #######
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umask 0
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PWD=`pwd`
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umask 02
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#
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# Check for existing libraries
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std_libs $PWD
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std_libs ${HOMEDIR}$PWD
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std_libs ${SYSDIR}$PWD
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#
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# We may need to create one for this area
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DIR=$PWD
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if [ ! -n "${NOUPDATE}" -o -n "${SPECDEST}" ] ; then
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echo "Create new library? <(L)ocal, (H)ome, (S)ystem, (Q)uit> [q] \c"
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read x y
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case $x in
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[Ll]* ) DIR=$PWD ;;
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[Hh]* ) DIR=${HOMEDIR}$PWD ;;
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[Ss]* ) DIR=${SYSDIR}$PWD ;;
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*) exit 1 ;;
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esac
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fi
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[ -d $DIR ] || {
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mkdir -p $DIR || exit $?
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}
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OUT=${DIR}/cscope.out
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TMP=${DIR}/cscope.tmplst
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INC=${DIR}/cscope.inc
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create_list ${TMP}
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do_cscope ${TMP} ${OUT} ${INC} ${QUICK}
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