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  24 .TH WHICH_SCM 1ONBLD "Sep 18, 2009"
  25 .SH NAME
  26 which_scm \- Report Source Code Management system
  27 .SH SYNOPSIS
  28 .B which_scm
  29 
  30 .SH DESCRIPTION
  31 .B which_scm
  32 detects the Source Code Management (SCM) system in use, and prints a
  33 single line of text containing a one-word name for the SCM, followed
  34 by a space, and then the top-level directory path for the workspace.
  35 
  36 The typical usage within a ksh script is:
  37 .nf
  38         which_scm | read SCM_TYPE CODEMGR_WS || exit 1
  39 .fi
  40 
  41 If CODEMGR_WS is set in the environment, then \fBwhich_scm\fR
  42 checks only that directory, assuming that it is the top of the tree.
  43 
  44 If CODEMGR_WS is not set, then \fBwhich_scm\fR searches upwards to
  45 find the containing workspace path, and reports that path.
  46 
  47 .B which_scm
  48 can detect the following types of SCM systems (these are the keywords
  49 used in the output format):
  50 .nf
  51         cvs
  52         git
  53         mercurial
  54         rcs
  55         sccs
  56         subversion
  57         teamware
  58 .fi
  59 
  60 If the type of SCM in use is not known, then the string "unknown" is
  61 printed, and the path returned is $CODEMGR_WS (if set) or the current
  62 working directory.  The command may exit with an error if the SCM
  63 could be detected, but is unusable.
  64 
  65 .SH ENVIRONMENT VARIABLES
  66 The following environment variable is used by \fBwhich_scm\fR:
  67 
  68 .PP
  69 \fBCODEMGR_WS\fR path to current workspace.
  70 
  71 .SH SEE ALSO
  72 .IR cvs(1) ,
  73 .IR git(1) ,
  74 .IR hg(1) ,
  75 .IR sccs(1)
  76 .IR svn(1) ,
  77 .IR workspace(1)