On Mon, Jan 09, 2012 at 08:51:57PM -0500, Dave Reisner wrote: > 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##*/}
Thought of an edge case where this fails last night before I went to
sleep. When the symlink contains no slashes, it'll cd to nowhere. Fixed
on my local by wrapping the cd and buildfile reassignment in the if
condition: [[ $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
>
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