[PATCH v2 2/6] cvsimport: allow setting a custom cvsps (2.x) program name

[Junio C Hamano <gitster@xxxxxxxxx>]

Distros may ship old cvsps under a different name, or the user may
install it outside the normal $PATH.  Allow setting CVSPS2_PATH from
the build environment.

Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
---
 Makefile           | 9 +++++++--
 git-cvsimport.perl | 4 +++-
 t/lib-cvs.sh       | 4 +++-
 3 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/Makefile b/Makefile
index 1695075..dd2a024 100644
--- a/Makefile
+++ b/Makefile
@@ -576,9 +576,11 @@ endif
 ifndef PYTHON_PATH
 	PYTHON_PATH = /usr/bin/python
 endif
+ifndef CVSPS2_PATH
+	CVSPS2_PATH = cvsps
+endif
 
-export PERL_PATH
-export PYTHON_PATH
+export PERL_PATH PYTHON_PATH CVSPS2_PATH
 
 LIB_FILE = libgit.a
 XDIFF_LIB = xdiff/lib.a
@@ -1516,6 +1518,7 @@ SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH))
 PERL_PATH_SQ = $(subst ','\'',$(PERL_PATH))
 PYTHON_PATH_SQ = $(subst ','\'',$(PYTHON_PATH))
 TCLTK_PATH_SQ = $(subst ','\'',$(TCLTK_PATH))
+CVSPS2_PATH_SQ = $(subst ','\'',$(CVSPS2_PATH))
 DIFF_SQ = $(subst ','\'',$(DIFF))
 
 LIBS = $(GITLIBS) $(EXTLIBS)
@@ -1729,6 +1732,7 @@ $(patsubst %.perl,%,$(SCRIPT_PERL)): % : %.perl GIT-VERSION-FILE
 	    -e '	H' \
 	    -e '	x' \
 	    -e '}' \
+	    -e 's|@@CVSPS2_PATH@@|$(CVSPS2_PATH_SQ)|g' \
 	    -e 's/@@GIT_VERSION@@/$(GIT_VERSION)/g' \
 	    $@.perl >$@+ && \
 	chmod +x $@+ && \
@@ -2107,6 +2111,7 @@ GIT-LDFLAGS: FORCE
 GIT-BUILD-OPTIONS: FORCE
 	@echo SHELL_PATH=\''$(subst ','\'',$(SHELL_PATH_SQ))'\' >$@
 	@echo PERL_PATH=\''$(subst ','\'',$(PERL_PATH_SQ))'\' >>$@
+	@echo CVSPS2_PATH=\''$(subst ','\'',$(CVSPS2_PATH_SQ))'\' >>$@
 	@echo DIFF=\''$(subst ','\'',$(subst ','\'',$(DIFF)))'\' >>$@
 	@echo PYTHON_PATH=\''$(subst ','\'',$(PYTHON_PATH_SQ))'\' >>$@
 	@echo TAR=\''$(subst ','\'',$(subst ','\'',$(TAR)))'\' >>$@
diff --git a/git-cvsimport.perl b/git-cvsimport.perl
index 0a31ebd..ad460a5 100755
--- a/git-cvsimport.perl
+++ b/git-cvsimport.perl
@@ -33,6 +33,8 @@
 our ($opt_h,$opt_o,$opt_v,$opt_k,$opt_u,$opt_d,$opt_p,$opt_C,$opt_z,$opt_i,$opt_P, $opt_s,$opt_m,@opt_M,$opt_A,$opt_S,$opt_L, $opt_a, $opt_r, $opt_R);
 my (%conv_author_name, %conv_author_email, %conv_author_tz);
 
+my $cvsps2 = "@@CVSPS2_PATH@@";
+
 sub usage(;$) {
 	my $msg = shift;
 	print(STDERR "Error: $msg\n") if $msg;
@@ -751,7 +753,7 @@ sub munge_user_filename {
 		unless (defined($opt_p) && $opt_p =~ m/--no-cvs-direct/) {
 			push @opt, '--cvs-direct';
 		}
-		exec("cvsps","--norc",@opt,"-u","-A",'--root',$opt_d,$cvs_tree);
+		exec($cvsps2,"--norc",@opt,"-u","-A",'--root',$opt_d,$cvs_tree);
 		die "Could not start cvsps: $!\n";
 	}
 	($cvspsfh, $cvspsfile) = tempfile('gitXXXXXX', SUFFIX => '.cvsps',
diff --git a/t/lib-cvs.sh b/t/lib-cvs.sh
index 44263ad..bdab63c 100644
--- a/t/lib-cvs.sh
+++ b/t/lib-cvs.sh
@@ -13,7 +13,9 @@ fi
 CVS="cvs -f"
 export CVS
 
-cvsps_version=`cvsps -h 2>&1 | sed -ne 's/cvsps version //p'`
+CVSPS="$CVSPS2_PATH"
+
+cvsps_version=`$CVSPS -h 2>&1 | sed -ne 's/cvsps version //p'`
 case "$cvsps_version" in
 2.1 | 2.2*)
 	;;
-- 
1.8.1.421.g6236851

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