git-migration: pld-git.sh (NEW) - cvs to git migration script

[glen]

Author: glen                         Date: Fri Feb  4 14:59:41 2011 GMT
Module: git-migration                 Tag: HEAD
---- Log message:
- cvs to git migration script

---- Files affected:
git-migration:
   pld-git.sh (NONE -> 1.1)  (NEW)

---- Diffs:

================================================================
Index: git-migration/pld-git.sh
diff -u /dev/null git-migration/pld-git.sh:1.1
--- /dev/null	Fri Feb  4 15:59:41 2011
+++ git-migration/pld-git.sh	Fri Feb  4 15:59:36 2011
@@ -0,0 +1,102 @@
+#!/bin/sh
+# Author: Elan Ruusamäe <glen at pld-linux.org>
+
+set -e
+export LC_ALL=C
+ftpdir=$HOME/ftp
+wwwdir=$HOME/www
+CVSROOT=:pserver:cvs at cvs.pld-linux.org:/cvsroot
+d=$-
+
+# generate list of .specs on ftp. needs cvsnt client
+# input: $CVSROOT = cvs server location
+# output: $t/cvs.dirs = list of pkgs on cvs
+cvs_pkgs() {
+	set -$d
+	[ -s cvs.raw ] || cvs -d $CVSROOT -Q ls -e packages > cvs.raw 2>/dev/null
+	[ -s cvs.dirs ] || awk -F/ '$1 == "D" { print $2 } ' cvs.raw > cvs.dirs
+}
+
+# generate userlist for git import
+# input: $CVSROOT = cvs server location
+# output: cvs.userlog = log of users file
+# output: cvs.users = user (authors) map for import
+cvs_users() {
+	set -$d
+	[ ! -s cvs.users ] || return 0
+
+	# iterate over each version to get list of all emails, we prefer most recent entry
+	if [ ! -s cvs.userlog ]; then
+		> cvs.userlog
+		local rev revs=$(cvs -d $CVSROOT rlog CVSROOT/users | awk '/^revision /{print $2}')
+		for rev in $revs; do
+			cvs -d $CVSROOT co -r $rev CVSROOT/users
+			cat CVSROOT/users >> cvs.userlog
+		done
+	fi
+   	perl -ne '
+		chomp;
+		my($login, $email, $name) = split(/:/);
+		# skip notes
+		next if $login =~ /^(?:vim|README|)$/;
+		# skip aliases
+		next if $email =~ /,/;
+		$email = "$login\@pld-linux.org";
+		printf("%s=%s <%s>\n", $login, $name, $email) unless $seen{$login};
+		$seen{$login}++;
+	'  cvs.userlog > cvs.users
+}
+
+# run git cvsimport on each package module
+# input: $CVSROOT
+# input: cvs.dirs = list of packages
+# modifies: cvs.blacklist = list of problematic packages
+git_import() {
+	set -$d
+	local pkg
+
+	touch cvs.blacklist
+	for pkg in ${@:-$(cat cvs.dirs)}; do
+		# faster startup, skip existing ones for now
+		test -d git-import/$pkg && continue
+
+		grep -qF $pkg cvs.blacklist && continue
+		# commits are mixed latin2 and utf8, do not force neither.
+		# -c i18n.commitencoding=iso8859-2 
+		git cvsimport -d $CVSROOT -C git-import/$pkg -R -A cvs.users packages/$pkg || echo $pkg >> cvs.blacklist
+	done
+}
+
+# create template dir of git_bare
+# we copy system template dir and remove samples from it
+git_templates() {
+	set -$d
+	[ -d templates ] && return
+	cp -a /usr/share/git-core/templates templates
+	find templates -name '*.sample' | xargs rm
+	# clear
+	> templates/info/exclude
+	# clear
+	> templates/description
+}
+
+# setup bare git repo for each imported git repo
+# input: cvs.dirs = list of packages
+git_bare() {
+	set -$d
+	local pkg
+
+	install -d git
+	for pkg in ${@:-$(cat cvs.dirs)}; do
+		test -d git-import/$pkg || continue
+		test -d gitroot/$pkg && continue
+
+		git clone --bare --template=templates git-import/$pkg gitroot/$pkg || echo $pkg >> git.blacklist
+	done
+}
+
+cvs_pkgs
+cvs_users
+git_import "$@"
+git_templates
+git_bare "$@"
================================================================