git-svn info: implement info command

Implement "git-svn info" for files and directories based on the
"svn info" command.  Note that the -r/--revision argument is not
supported yet.

Added 18 tests in t/t9119-git-svn-info.sh.

[ew: small fix to work without arguments on all working directories]

Signed-off-by: David D. Kilzer <ddkilzer@kilzer.net>
Acked-by: Eric Wong <normalperson@yhbt.net>
diff --git a/t/t9119-git-svn-info.sh b/t/t9119-git-svn-info.sh
new file mode 100644
index 0000000..fbde8c8
--- /dev/null
+++ b/t/t9119-git-svn-info.sh
@@ -0,0 +1,275 @@
+#!/bin/sh
+#
+# Copyright (c) 2007 David D. Kilzer
+
+test_description='git-svn info'
+
+. ./lib-git-svn.sh
+
+ptouch() {
+	perl -w -e '
+		use strict;
+		die "ptouch requires exactly 2 arguments" if @ARGV != 2;
+		die "$ARGV[0] does not exist" if ! -e $ARGV[0];
+		my @s = stat $ARGV[0];
+		utime $s[8], $s[9], $ARGV[1];
+	' "$1" "$2"
+}
+
+test_expect_success 'setup repository and import' "
+	mkdir info &&
+	cd info &&
+		echo FIRST > A &&
+		echo one > file &&
+		ln -s file symlink-file &&
+		mkdir directory &&
+		touch directory/.placeholder &&
+		ln -s directory symlink-directory &&
+		svn import -m 'initial' . $svnrepo &&
+	cd .. &&
+	mkdir gitwc &&
+	cd gitwc &&
+		git-svn init $svnrepo &&
+		git-svn fetch &&
+	cd .. &&
+	svn co $svnrepo svnwc &&
+	ptouch svnwc/file gitwc/file &&
+	ptouch svnwc/directory gitwc/directory &&
+	ptouch svnwc/symlink-file gitwc/symlink-file &&
+	ptouch svnwc/symlink-directory gitwc/symlink-directory
+	"
+
+test_expect_success 'info' "
+	(cd svnwc; svn info) > expected.info &&
+	(cd gitwc; git-svn info) > actual.info &&
+	git-diff expected.info actual.info
+	"
+
+test_expect_success 'info .' "
+	(cd svnwc; svn info .) > expected.info-dot &&
+	(cd gitwc; git-svn info .) > actual.info-dot &&
+	git-diff expected.info-dot actual.info-dot
+	"
+
+test_expect_success 'info file' "
+	(cd svnwc; svn info file) > expected.info-file &&
+	(cd gitwc; git-svn info file) > actual.info-file &&
+	git-diff expected.info-file actual.info-file
+	"
+
+test_expect_success 'info directory' "
+	(cd svnwc; svn info directory) > expected.info-directory &&
+	(cd gitwc; git-svn info directory) > actual.info-directory &&
+	git-diff expected.info-directory actual.info-directory
+	"
+
+test_expect_success 'info symlink-file' "
+	(cd svnwc; svn info symlink-file) > expected.info-symlink-file &&
+	(cd gitwc; git-svn info symlink-file) > actual.info-symlink-file &&
+	git-diff expected.info-symlink-file actual.info-symlink-file
+	"
+
+test_expect_success 'info symlink-directory' "
+	(cd svnwc; svn info symlink-directory) \
+		> expected.info-symlink-directory &&
+	(cd gitwc; git-svn info symlink-directory) \
+		> actual.info-symlink-directory &&
+	git-diff expected.info-symlink-directory actual.info-symlink-directory
+	"
+
+test_expect_success 'info added-file' "
+	echo two > gitwc/added-file &&
+	cd gitwc &&
+		git add added-file &&
+	cd .. &&
+	cp gitwc/added-file svnwc/added-file &&
+	ptouch gitwc/added-file svnwc/added-file &&
+	cd svnwc &&
+		svn add added-file > /dev/null &&
+	cd .. &&
+	(cd svnwc; svn info added-file) > expected.info-added-file &&
+	(cd gitwc; git-svn info added-file) > actual.info-added-file &&
+	git-diff expected.info-added-file actual.info-added-file
+	"
+
+test_expect_success 'info added-directory' "
+	mkdir gitwc/added-directory svnwc/added-directory &&
+	ptouch gitwc/added-directory svnwc/added-directory &&
+	touch gitwc/added-directory/.placeholder &&
+	cd svnwc &&
+		svn add added-directory > /dev/null &&
+	cd .. &&
+	cd gitwc &&
+		git add added-directory &&
+	cd .. &&
+	(cd svnwc; svn info added-directory) \
+		> expected.info-added-directory &&
+	(cd gitwc; git-svn info added-directory) \
+		> actual.info-added-directory &&
+	git-diff expected.info-added-directory actual.info-added-directory
+	"
+
+test_expect_success 'info added-symlink-file' "
+	cd gitwc &&
+		ln -s added-file added-symlink-file &&
+		git add added-symlink-file &&
+	cd .. &&
+	cd svnwc &&
+		ln -s added-file added-symlink-file &&
+		svn add added-symlink-file > /dev/null &&
+	cd .. &&
+	ptouch gitwc/added-symlink-file svnwc/added-symlink-file &&
+	(cd svnwc; svn info added-symlink-file) \
+		> expected.info-added-symlink-file &&
+	(cd gitwc; git-svn info added-symlink-file) \
+		> actual.info-added-symlink-file &&
+	git-diff expected.info-added-symlink-file \
+		 actual.info-added-symlink-file
+	"
+
+test_expect_success 'info added-symlink-directory' "
+	cd gitwc &&
+		ln -s added-directory added-symlink-directory &&
+		git add added-symlink-directory &&
+	cd .. &&
+	cd svnwc &&
+		ln -s added-directory added-symlink-directory &&
+		svn add added-symlink-directory > /dev/null &&
+	cd .. &&
+	ptouch gitwc/added-symlink-directory svnwc/added-symlink-directory &&
+	(cd svnwc; svn info added-symlink-directory) \
+		> expected.info-added-symlink-directory &&
+	(cd gitwc; git-svn info added-symlink-directory) \
+		> actual.info-added-symlink-directory &&
+	git-diff expected.info-added-symlink-directory \
+		 actual.info-added-symlink-directory
+	"
+
+# The next few tests replace the "Text Last Updated" value with a
+# placeholder since git doesn't have a way to know the date that a
+# now-deleted file was last checked out locally.  Internally it
+# simply reuses the Last Changed Date.
+
+test_expect_success 'info deleted-file' "
+	cd gitwc &&
+		git rm -f file > /dev/null &&
+	cd .. &&
+	cd svnwc &&
+		svn rm --force file > /dev/null &&
+	cd .. &&
+	(cd svnwc; svn info file) |
+	sed -e 's/^\(Text Last Updated:\).*/\1 TEXT-LAST-UPDATED-STRING/' \
+		> expected.info-deleted-file &&
+	(cd gitwc; git-svn info file) |
+	sed -e 's/^\(Text Last Updated:\).*/\1 TEXT-LAST-UPDATED-STRING/' \
+		> actual.info-deleted-file &&
+	git-diff expected.info-deleted-file actual.info-deleted-file
+	"
+
+test_expect_success 'info deleted-directory' "
+	cd gitwc &&
+		git rm -r -f directory > /dev/null &&
+	cd .. &&
+	cd svnwc &&
+		svn rm --force directory > /dev/null &&
+	cd .. &&
+	(cd svnwc; svn info directory) |
+	sed -e 's/^\(Text Last Updated:\).*/\1 TEXT-LAST-UPDATED-STRING/' \
+		> expected.info-deleted-directory &&
+	(cd gitwc; git-svn info directory) |
+	sed -e 's/^\(Text Last Updated:\).*/\1 TEXT-LAST-UPDATED-STRING/' \
+		> actual.info-deleted-directory &&
+	git-diff expected.info-deleted-directory actual.info-deleted-directory
+	"
+
+test_expect_success 'info deleted-symlink-file' "
+	cd gitwc &&
+		git rm -f symlink-file > /dev/null &&
+	cd .. &&
+	cd svnwc &&
+		svn rm --force symlink-file > /dev/null &&
+	cd .. &&
+	(cd svnwc; svn info symlink-file) |
+	sed -e 's/^\(Text Last Updated:\).*/\1 TEXT-LAST-UPDATED-STRING/' \
+		> expected.info-deleted-symlink-file &&
+	(cd gitwc; git-svn info symlink-file) |
+	sed -e 's/^\(Text Last Updated:\).*/\1 TEXT-LAST-UPDATED-STRING/' \
+		> actual.info-deleted-symlink-file &&
+	git-diff expected.info-deleted-symlink-file \
+		 actual.info-deleted-symlink-file
+	"
+
+test_expect_success 'info deleted-symlink-directory' "
+	cd gitwc &&
+		git rm -f symlink-directory > /dev/null &&
+	cd .. &&
+	cd svnwc &&
+		svn rm --force symlink-directory > /dev/null &&
+	cd .. &&
+	(cd svnwc; svn info symlink-directory) |
+	sed -e 's/^\(Text Last Updated:\).*/\1 TEXT-LAST-UPDATED-STRING/' \
+		 > expected.info-deleted-symlink-directory &&
+	(cd gitwc; git-svn info symlink-directory) |
+	sed -e 's/^\(Text Last Updated:\).*/\1 TEXT-LAST-UPDATED-STRING/' \
+		 > actual.info-deleted-symlink-directory &&
+	git-diff expected.info-deleted-symlink-directory \
+		 actual.info-deleted-symlink-directory
+	"
+
+# NOTE: git does not have the concept of replaced objects,
+# so we can't test for files in that state.
+
+test_expect_success 'info unknown-file' "
+	echo two > gitwc/unknown-file &&
+	cp gitwc/unknown-file svnwc/unknown-file &&
+	ptouch gitwc/unknown-file svnwc/unknown-file &&
+	(cd svnwc; svn info unknown-file) 2> expected.info-unknown-file &&
+	(cd gitwc; git-svn info unknown-file) 2> actual.info-unknown-file &&
+	git-diff expected.info-unknown-file actual.info-unknown-file
+	"
+
+test_expect_success 'info unknown-directory' "
+	mkdir gitwc/unknown-directory svnwc/unknown-directory &&
+	ptouch gitwc/unknown-directory svnwc/unknown-directory &&
+	touch gitwc/unknown-directory/.placeholder &&
+	(cd svnwc; svn info unknown-directory) \
+		2> expected.info-unknown-directory &&
+	(cd gitwc; git-svn info unknown-directory) \
+		2> actual.info-unknown-directory &&
+	git-diff expected.info-unknown-directory actual.info-unknown-directory
+	"
+
+test_expect_success 'info unknown-symlink-file' "
+	cd gitwc &&
+		ln -s unknown-file unknown-symlink-file &&
+	cd .. &&
+	cd svnwc &&
+		ln -s unknown-file unknown-symlink-file &&
+	cd .. &&
+	ptouch gitwc/unknown-symlink-file svnwc/unknown-symlink-file &&
+	(cd svnwc; svn info unknown-symlink-file) \
+		2> expected.info-unknown-symlink-file &&
+	(cd gitwc; git-svn info unknown-symlink-file) \
+		2> actual.info-unknown-symlink-file &&
+	git-diff expected.info-unknown-symlink-file \
+		 actual.info-unknown-symlink-file
+	"
+
+test_expect_success 'info unknown-symlink-directory' "
+	cd gitwc &&
+		ln -s unknown-directory unknown-symlink-directory &&
+	cd .. &&
+	cd svnwc &&
+		ln -s unknown-directory unknown-symlink-directory &&
+	cd .. &&
+	ptouch gitwc/unknown-symlink-directory \
+	       svnwc/unknown-symlink-directory &&
+	(cd svnwc; svn info unknown-symlink-directory) \
+		2> expected.info-unknown-symlink-directory &&
+	(cd gitwc; git-svn info unknown-symlink-directory) \
+		2> actual.info-unknown-symlink-directory &&
+	git-diff expected.info-unknown-symlink-directory \
+		 actual.info-unknown-symlink-directory
+	"
+
+test_done