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kiss-new: Done?

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This commit is contained in:
Dylan Araps 2019-06-29 23:33:42 +03:00
parent 1c17635204
commit 6465e54d77
1 changed files with 115 additions and 9 deletions
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124
kiss-new
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@ -87,11 +87,18 @@ pkg_list() {
# diectories, this just involves a simple for loop and
# file read.
# Change directories to the database. This allows us to
# avoid having to basename each path. If this fails,
# set '$1' to mimic a failed glob which indicates that
# nothing is installed.
cd "$KISS_ROOT/var/db/kiss/" 2>/dev/null ||
set -- "$KISS_ROOT/var/db/kiss/"\*
# Optional arguments can be passed to check for specific
# packages. If no arguments are passed, list all. As we
# loop over '$@', if there aren't any arguments we can
# just set the directory contents to the argument list.
[ "$1" ] || set -- "$KISS_ROOT/var/db/kiss/"*
[ "$1" ] || set -- *
# If the 'glob' above failed, exit early as there are no
# packages installed.
@ -111,7 +118,7 @@ pkg_list() {
}
read -r version release < "$pkg/version" &&
printf '%s\n' "${pkg%/*} $version-$release"
printf '%s\n' "$pkg $version-$release"
done
}
@ -310,7 +317,7 @@ pkg_manifest() (
# Find all files and directories in the package. Directories are printed
# with a trailing forward slash '/'. The list is then reversed with
# directories appearing *after* their contents.
find . -type d -exec printf '%s/\n' {} + -or -print |
find . -mindepth 1 -type d -exec printf '%s/\n' {} + -or -print |
sort -r | sed -e ss.ss > "$pkg_dir/$1/var/db/kiss/$1/manifest"
log "[$1]: Generated manifest."
@ -481,6 +488,7 @@ pkg_checksums() {
pkg_conflicts() {
# Check to see if a package conflicts with another.
# This function takes a path to a KISS tarball as an argument.
log "Checking for package conflicts."
# Extract manifest from the tarball and only extract files entries.
tar xf "$1" -O "./var/db/kiss/$pkg_name/manifest" |
@ -501,6 +509,38 @@ pkg_conflicts() {
rm -f "$cac_dir/manifest-$pid"
}
pkg_remove() {
# Remove a package and all of its files. The '/etc' directory
# is handled differently and configuration files are *not*
# overwritten.
# Create a backup of 'rm' and 'rmdir' so they aren't removed
# during package removal. This ensures that an upgrade to 'busybox'
# or your coreutils of choice doesn't break the package manager.
cp "$(command -v rm)" "$cac_dir"
cp "$(command -v rmdir)" "$cac_dir"
for pkg; do
# The package is not installed, don't do anything.
pkg_list "$pkg" >/dev/null || continue
while read -r file; do
# The file is in '/etc' skip it. This prevents the package
# manager from removing user edited config files.
[ "${file##/etc/*}" ] || continue
if [ -d "$KISS_ROOT/$file" ]; then
"$cac_dir/rmdir" "$KISS_ROOT/$file" 2>/dev/null || continue
else
"$cac_dir/rm" -f -- "$KISS_ROOT/$file" ||
log "Failed to remove '$file'."
fi
done < "$KISS_ROOT/var/db/kiss/$pkg/manifest"
log "Successfully removed '$pkg'."
done
}
pkg_install() {
# Install a built package tarball.
@ -508,7 +548,7 @@ pkg_install() {
# Install can also take the full path to a tarball.
# We don't need to check the repository if this is the case.
if [ -f "$pkg" ]; then
tar_name=$pkg
tar_file=$pkg
else
# Find the package's repository files. This needs to keep
@ -530,13 +570,19 @@ pkg_install() {
fi
# Figure out which package the tarball installs by checking for
# a database entry inside the tarball.
pkg_name=$(tar tf "$tar_file" | grep -x "\./var/db/kiss/.*/version")
pkg_name=${pkg_name%/*}
pkg_name=${pkg_name##*/}
# a database entry inside the tarball. If no database entry exists,
# exit here as the tarball is *most likely* not a KISS package.
{
pkg_name=$(tar tf "$tar_file" | grep -x "\./var/db/kiss/.*/version")
pkg_name=${pkg_name%/*}
pkg_name=${pkg_name##*/}
} || die "'$tar_file' is not a valid KISS package."
pkg_conflicts "$tar_file"
# Extract the tarball early to catch any errors before installation
# begins. The package manager uninstalls the previous package during
# an upgrade so any errors need to be caught ASAP.
tar pxf "$tar_file" -C "$tar_dir/" ||
die "[$pkg]: Failed to extract tarball."
@ -548,7 +594,57 @@ pkg_install() {
cp "$(command -v find)" "$cac_dir"
log "Removing previous version of package if it exists."
pkg_remove
pkg_remove "$pkg_name"
# Installation works by unpacking the tarball to a specified location,
# manually running 'mkdir' to create each directory and finally, using
# 'mv' to move each file.
cd "$tar_dir"
# Create all of the package's directories.
# Optimization: Only find the deepest directories.
"$cac_dir/find" . -type d -links -3 -prune | while read -r dir; do
"$cac_dir/mkdir" -p "$KISS_ROOT/${dir#./}"
done
# Move all package files to '$KISS_ROOT'.
"$cac_dir/find" ./ -mindepth 1 -not -type d | while read -r file; do
rpath=${file#.}
# Don't overwrite existing '/etc' files.
[ -z "${rpath##/etc/*}" ] &&
[ -f "$KISS_ROOT/${rpath%/*}/${file##*/}" ] &&
return
"$cac_dir/mv" "$file" "$KISS_ROOT/${rpath%/*}"
done
# Run the post install script and suppress errors. If it exists,
# it will run, else nothing will happen.
"$KISS_ROOT/var/db/kiss/$pkg_name/post-install" 2>/dev/null ||:
log "Successfully installed '$pkg_name'."
done
}
pkg_updates() {
# Check all installed packages for updates. So long as the installed
# version and the version in the repositories differ, it's considered
# an update.
for pkg in "$KISS_ROOT/var/db/kiss/"*; do
# Find the package's repository files. This needs to keep
# happening as we can't store this data in any kind of data
# structure.
repo_dir=$(pkg_search "${pkg##*/}")
# Read version and release information from the installed packages
# and repository.
read -r db_ver db_rel < "$pkg/version"
read -r re_ver re_rel < "$repo_dir/version"
# Compare installed packages to repository packages.
[ "$db_ver-$db_rel" != "$re_ver-$re_rel" ] &&
printf '%s\n' "${pkg##*/} $re_ver-$re_rel"
done
}
@ -588,6 +684,10 @@ pkg_clean() {
# Remove temporary directories.
rm -rf -- "$mak_dir" "$pkg_dir" "$tar_dir"
# Remove cached commands.
rm -f -- "$cac_dir/find" "$cac_dir/mv" "$cac_dir/mkdir" \
"$cac_dir/rm" "$cac_dir/rmdir"
}
root_check() {
@ -640,6 +740,7 @@ args() {
shift
[ "$1" ] || die "'kiss remove' requires an argument."
root_check
pkg_remove "$@"
;;
# List installed packages.
@ -648,6 +749,11 @@ args() {
pkg_list "$@"
;;
# Upgrade packages.
u*)
pkg_updates
;;
# Print version and exit.
v*)
log "$kiss 0.1.10"