1cdf0c1d5Smjnelson#!/usr/bin/ksh -p 2cdf0c1d5Smjnelson# 3cdf0c1d5Smjnelson# CDDL HEADER START 4cdf0c1d5Smjnelson# 5cdf0c1d5Smjnelson# The contents of this file are subject to the terms of the 6cdf0c1d5Smjnelson# Common Development and Distribution License (the "License"). 7cdf0c1d5Smjnelson# You may not use this file except in compliance with the License. 8cdf0c1d5Smjnelson# 9cdf0c1d5Smjnelson# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10cdf0c1d5Smjnelson# or http://www.opensolaris.org/os/licensing. 11cdf0c1d5Smjnelson# See the License for the specific language governing permissions 12cdf0c1d5Smjnelson# and limitations under the License. 13cdf0c1d5Smjnelson# 14cdf0c1d5Smjnelson# When distributing Covered Code, include this CDDL HEADER in each 15cdf0c1d5Smjnelson# file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16cdf0c1d5Smjnelson# If applicable, add the following below this CDDL HEADER, with the 17cdf0c1d5Smjnelson# fields enclosed by brackets "[]" replaced with your own identifying 18cdf0c1d5Smjnelson# information: Portions Copyright [yyyy] [name of copyright owner] 19cdf0c1d5Smjnelson# 20cdf0c1d5Smjnelson# CDDL HEADER END 21cdf0c1d5Smjnelson# 22cdf0c1d5Smjnelson 23cdf0c1d5Smjnelson# 24cdf0c1d5Smjnelson# Copyright 2008 Sun Microsystems, Inc. All rights reserved. 25cdf0c1d5Smjnelson# Use is subject to license terms. 26cdf0c1d5Smjnelson# 27*995b8d82SBill Sommerfeld# Copyright 2023 Bill Sommerfeld 28*995b8d82SBill Sommerfeld# 29cdf0c1d5Smjnelson 30cdf0c1d5Smjnelson# which_scm outputs two strings: one identifying the SCM in use, and 31cdf0c1d5Smjnelson# the second giving the root directory for the SCM, if known, or just 32cdf0c1d5Smjnelson# the current working directory if not known. 33cdf0c1d5Smjnelson 34cdf0c1d5Smjnelson# There are three distinct types of SCM systems we can detect. The first 35cdf0c1d5Smjnelson# type have a control directory per directory (RCS and SCCS), with no other 36cdf0c1d5Smjnelson# structure. The second type have a control directory in each subdirectory 37cdf0c1d5Smjnelson# within a tree (CVS and SVN). The last type have a single control 38cdf0c1d5Smjnelson# directory at the top of the tree (Teamware and Mercurial). 39cdf0c1d5Smjnelson 40cdf0c1d5Smjnelson# If the common CODEMGR_WS variable is set, then we look there for the 41cdf0c1d5Smjnelson# SCM type and bail out if we can't determine it. 42cdf0c1d5Smjnelson 43cdf0c1d5Smjnelson# If that variable is not set, then we start in the current directory 44cdf0c1d5Smjnelson# and work our way upwards until we find the top of the tree or we 45cdf0c1d5Smjnelson# encounter an error. 46cdf0c1d5Smjnelson 47cdf0c1d5Smjnelson# We do handle nested SCM types, and report the innermost one, but if 48cdf0c1d5Smjnelson# you nest one of the "second type" systems within another instance of 49cdf0c1d5Smjnelson# itself, we'll keep going upwards and report the top of the nested 50cdf0c1d5Smjnelson# set of trees. 51cdf0c1d5Smjnelson 52cdf0c1d5Smjnelson 53cdf0c1d5Smjnelson# Check for well-known tree-type source code management (SCM) systems. 54cdf0c1d5Smjnelsonfunction primary_type 55cdf0c1d5Smjnelson{ 56cdf0c1d5Smjnelson typeset scmid 57cdf0c1d5Smjnelson 58cdf0c1d5Smjnelson [ -d "$1/Codemgr_wsdata" ] && scmid="$scmid teamware" 59cdf0c1d5Smjnelson [ -d "$1/.hg" ] && scmid="$scmid mercurial" 60cdf0c1d5Smjnelson [ -d "$1/CVS" ] && scmid="$scmid cvs" 61cdf0c1d5Smjnelson [ -d "$1/.svn" ] && scmid="$scmid subversion" 628bcea973SRichard Lowe [ -d "$1/.git" ] && scmid="$scmid git" 63*995b8d82SBill Sommerfeld [ -f "$1/.git" ] && scmid="$scmid git" 64cdf0c1d5Smjnelson echo $scmid 65cdf0c1d5Smjnelson} 66cdf0c1d5Smjnelson 67cdf0c1d5Smjnelsonif [[ -n "$CODEMGR_WS" ]]; then 68cdf0c1d5Smjnelson if [[ ! -d "$CODEMGR_WS" ]]; then 69cdf0c1d5Smjnelson print -u2 "which_scm: $CODEMGR_WS is not a directory." 70cdf0c1d5Smjnelson exit 1 71cdf0c1d5Smjnelson fi 72cdf0c1d5Smjnelson set -- $(primary_type "$CODEMGR_WS") 73cdf0c1d5Smjnelson if [[ $# != 1 ]]; then 74cdf0c1d5Smjnelson set -- unknown 75cdf0c1d5Smjnelson fi 76cdf0c1d5Smjnelson echo "$1 $CODEMGR_WS" 77cdf0c1d5Smjnelson exit 0 78cdf0c1d5Smjnelsonfi 79cdf0c1d5Smjnelson 80cdf0c1d5SmjnelsonORIG_CWD=$(pwd) 81cdf0c1d5Smjnelson 82cdf0c1d5Smjnelsonif [[ -d RCS ]]; then 83cdf0c1d5Smjnelson echo "rcs $ORIG_CWD" 84cdf0c1d5Smjnelson exit 0 85cdf0c1d5Smjnelsonfi 86cdf0c1d5Smjnelson 87cdf0c1d5Smjnelson# If it's not Teamware, it could just be local SCCS. 88cdf0c1d5SmjnelsonLOCAL_TYPE= 89cdf0c1d5Smjnelson[[ -d SCCS ]] && LOCAL_TYPE="sccs" 90cdf0c1d5Smjnelson 91cdf0c1d5Smjnelson# Scan upwards looking for top of tree. 92cdf0c1d5SmjnelsonDIR=$ORIG_CWD 93cdf0c1d5SmjnelsonCWD_TYPE=$(primary_type "$DIR") 94cdf0c1d5SmjnelsonSCM_TYPE= 95cdf0c1d5Smjnelsonwhile [[ "$DIR" != / ]]; do 96cdf0c1d5Smjnelson set -- $(primary_type "$DIR") 97cdf0c1d5Smjnelson if [[ $# > 1 ]]; then 98cdf0c1d5Smjnelson echo "unknown $ORIG_CWD" 99cdf0c1d5Smjnelson exit 0 100cdf0c1d5Smjnelson fi 101cdf0c1d5Smjnelson SCM_TYPE="$1" 102cdf0c1d5Smjnelson # We're done searching if we hit either a change in type or the top 103cdf0c1d5Smjnelson # of a "third type" control system. 1048bcea973SRichard Lowe if [[ "$SCM_TYPE" != "$CWD_TYPE" || "$SCM_TYPE" == git || \ 1058bcea973SRichard Lowe "$SCM_TYPE" == mercurial || "$SCM_TYPE" == teamware ]]; then 106cdf0c1d5Smjnelson break 107cdf0c1d5Smjnelson fi 108cdf0c1d5Smjnelson PREVDIR="$DIR" 109cdf0c1d5Smjnelson DIR=$(dirname "$DIR") 110cdf0c1d5Smjnelsondone 111cdf0c1d5Smjnelson 112cdf0c1d5Smjnelson# We assume here that the system root directory isn't the root of the SCM. 113cdf0c1d5Smjnelson 114cdf0c1d5Smjnelson# Check for the "second type" of repository. In all cases, we started 115cdf0c1d5Smjnelson# out in the tree and stepped out on the last iteration, so we want 116cdf0c1d5Smjnelson# $PREVDIR. 117cdf0c1d5Smjnelsonif [[ "$CWD_TYPE" == cvs || "$CWD_TYPE" == subversion ]]; then 118cdf0c1d5Smjnelson echo "$CWD_TYPE $PREVDIR" 119cdf0c1d5Smjnelson exit 0 120cdf0c1d5Smjnelsonfi 121cdf0c1d5Smjnelson 122cdf0c1d5Smjnelson# If we still don't know what it is, then check for a local type in the 123cdf0c1d5Smjnelson# original directory. If none, then we don't know what it is. 124cdf0c1d5Smjnelsonif [[ -z "$SCM_TYPE" ]]; then 125cdf0c1d5Smjnelson if [[ -z "$LOCAL_TYPE" ]]; then 126cdf0c1d5Smjnelson SCM_TYPE=unknown 127cdf0c1d5Smjnelson else 128cdf0c1d5Smjnelson SCM_TYPE=$LOCAL_TYPE 129cdf0c1d5Smjnelson DIR=$ORIG_CWD 130cdf0c1d5Smjnelson fi 131cdf0c1d5Smjnelsonfi 132cdf0c1d5Smjnelson 133cdf0c1d5Smjnelsonecho "$SCM_TYPE $DIR" 134cdf0c1d5Smjnelsonexit 0 135