updpkgsums updates checksums in a PKGBUILD "in place"
---
This is really a whole lot of sanity checking and very little actual noise,
but given what this script does (deleting a file), I chose to err on the
side of extreme caution.
I remembered to add to .gitignore this time!
contrib/.gitignore | 1 +
contrib/Makefile.am | 5 ++-
contrib/updpkgsums.in | 90 +++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 95 insertions(+), 1 deletions(-)
create mode 100755 contrib/updpkgsums.in
diff --git a/contrib/.gitignore b/contrib/.gitignore
index 19b81e0..4f8e1e7 100644
--- a/contrib/.gitignore
+++ b/contrib/.gitignore
@@ -7,5 +7,6 @@ paclog-pkglist
pacscripts
pacsearch
pacsysclean
+updpkgsums
wget-xdelta.sh
zsh_completion
diff --git a/contrib/Makefile.am b/contrib/Makefile.am
index eca39e7..fab8d7c 100644
--- a/contrib/Makefile.am
+++ b/contrib/Makefile.am
@@ -12,7 +12,8 @@ OURSCRIPTS = \
paclog-pkglist \
pacscripts \
pacsearch \
- pacsysclean
+ pacsysclean \
+ updpkgsums
OURFILES = \
bash_completion \
@@ -29,6 +30,7 @@ EXTRA_DIST = \
pacscripts.in \
pacsearch.in \
pacsysclean.in \
+ updpkgsums.in \
vimprojects \
zsh_completion.in \
README
@@ -84,6 +86,7 @@ pacscripts: $(srcdir)/pacscripts.in
pacsearch: $(srcdir)/pacsearch.in
pacsysclean: $(srcdir)/pacsysclean.in
pactree: $(srcdir)/pactree.in
+updpkgsums: $(srcdir)/updpkgsums.in
zsh_completion: $(srcdir)/zsh_completion.in
# vim:set ts=2 sw=2 noet:
diff --git a/contrib/updpkgsums.in b/contrib/updpkgsums.in
new file mode 100755
index 0000000..304f5db
--- /dev/null
+++ b/contrib/updpkgsums.in
@@ -0,0 +1,90 @@
+#!/bin/bash
+#
+# updpkgsums - update source checksums in-place in PKGBUILDs
+#
+# Copyright (C) 2012 Dave Reisner <[email protected]>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+shopt -s extglob
+
+declare -r myname='updpkgsums'
+declare -r myver='@PACKAGE_VERSION@'
+
+usage() {
+ printf 'usage: %s [buildfile]\n\n' "$myname"
+ printf ' -h, --help display this help message and exit\n'
+ printf ' -V, --version display version information and exit\n\n'
+ printf '%s will perform an in place update the checksums in the\n'
"$myname"
+ printf 'path specified by [buildfile], defaulting to PKGBUILD in the
current\n'
+ printf 'working directory.\n'
+}
+
+version() {
+ printf "%s %s\n" "$myname" "$myver"
+ echo 'Copyright (C) 2012 Dave Reisner <[email protected]>'
+}
+
+case $1 in
+ -h|--help) usage; exit ;;
+ -V|--version) version; exit ;;
+esac
+
+buildfile=${1:-PKGBUILD}
+if [[ ! -f $buildfile ]]; then
+ printf $'==> ERROR: \`%s\' not found or is not a file: %s\n'
"$buildfile"
+ exit 1
+fi
+
+# Resolve any symlinks to avoid replacing the symlink with a file. But, we
+# have to do this portably... readlink's flags are inconsistent across OS's.
+while [[ -L $buildfile ]]; do
+ buildfile=$(readlink "$buildfile")
+ cd "${buildfile%/*}"
+ buildfile=${buildfile##*/}
+done
+
+# cd into the directory with the build file. this avoids creating random src/
+# directories scattered about the filesystem, and avoids cases where we might
+# not be able to write in the $PWD.
+if [[ $buildfile == */* ]]; then
+ cd "${buildfile%/*}"
+ buildfile=${buildfile##*/}
+fi
+
+# check $PWD/ for permission to unlink the $buildfile and write a new one
+if [[ ! -w . ]]; then
+ printf $'==> ERROR: No write permission in `%s\'\n' "$PWD"
+ exit 1
+fi
+
+{
+ # Generate the new sums and try to unlink the file before writing stdin
back
+ # into it. This final precaution shouldn't fail based on the previous
checks,
+ # but it's better to be extra careful before unlinking files.
+ newsums=$(makepkg -g -p "$buildfile") && rm -f "$buildfile" &&
+ exec awk -v newsums="$newsums" '
+ /^[[:blank:]]*(md|sha)[[:digit:]]+sums=/,/\)[[:blank:]]*(#.*)?$/ {
+ if (!w) {
+ print newsums
+ w++
+ }
+ next
+ }
+
+ 1
+ ' > "$buildfile"
+} < "$buildfile"
+
+# vim: set ts=2 sw=2 noet:
--
1.7.8.3
