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-rw-r--r--lib.sh1526
1 files changed, 0 insertions, 1526 deletions
diff --git a/lib.sh b/lib.sh
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index c72f7f9..0000000
--- a/lib.sh
+++ /dev/null
@@ -1,1526 +0,0 @@
-#!/bin/sh -ef
-# shellcheck source=/dev/null
-#
-# This is a simple package manager written in POSIX 'sh' for use
-# in KISS Linux (https://k1ss.org).
-#
-# This script runs with '-ef' meaning:
-# '-e': Abort on any non-zero exit code.
-# '-f': Disable globbing globally.
-#
-# [1] Warnings related to word splitting and globbing are disabled.
-# All word splitting in this script is *safe* and intentional.
-#
-# Dylan Araps.
-
-version() {
- log "Carbs Packaging Tools" 3.0.0
- exit 0
-}
-
-out() {
- # Print a message as is.
- printf '%s\n' "$@"
-}
-
-log() {
- # Print a message prettily.
- #
- # All messages are printed to stderr to allow the user to hide build
- # output which is the only thing printed to stdout.
- #
- # '\033[1;32m' Set text to color '2' and make it bold.
- # '\033[m': Reset text formatting.
- # '${3:-->}': If the 3rd argument is missing, set prefix to '->'.
- # '${2:+\033[1;3Xm}': If the 2nd argument exists, set text style of '$1'.
- printf '\033[1;33m%s \033[m%b%s\033[m %s\n' \
- "${3:-->}" "${2:+"\033[1;36m"}" "$1" "$2" >&2
-}
-
-die() {
- # Print a message and exit with '1' (error).
- log "$1" "$2" "!>"
- exit 1
-}
-
-warn() {
- # Print a warning message
- log "WARN" "$1" "${2:-!>}"
-}
-
-contains() {
- # Check if a "string list" contains a word.
- case " $1 " in *" $2 "*) return 0; esac; return 1
-}
-
-regesc() {
- # Escape special regular expression characters as
- # defined in POSIX BRE. '$.*[\^'
- printf '%s\n' "$1" | sed 's|\\|\\\\|g;s|\[|\\[|g;s|\$|\\$|g;s|\.|\\.|g;s|\*|\\*|g;s|\^|\\^|g'
-}
-
-
-prompt() {
- # If a CPT_NOPROMPT variable is set, continue.
- # This can be useful for installation scripts and
- # bootstrapping.
- [ "$CPT_PROMPT" = 0 ] && return 0
-
- # Ask the user for some input.
- [ "$1" ] && log "$1"
- log "Continue?: Press Enter to continue or Ctrl+C to abort here"
-
- # POSIX 'read' has none of the "nice" options like '-n', '-p'
- # etc etc. This is the most basic usage of 'read'.
- # '_' is used as 'dash' errors when no variable is given to 'read'.
- read -r _ || return 1
-}
-
-as_root() {
- # Simple function to run a command as root using either 'sudo',
- # 'doas' or 'su'. Hurrah for choice.
- [ "$uid" = 0 ] || log "Using '${su:-su}' (to become ${user:=root})"
-
- case ${su##*/} in
- sudo) sudo -E -u "$user" -- "$@" ;;
- doas) doas -u "$user" -- "$@" ;;
- su) su -pc "env USER=$user $* <&3" "$user" 3<&0 </dev/tty ;;
- *) die "Invalid CPT_SU value: $su" ;;
- esac
-}
-
-pop() {
- # Remove an item from a "string list". This allows us
- # to remove a 'sed' call and reuse this code throughout.
- del=$1
- shift 2
-
- for i do [ "$i" = "$del" ] || printf %s " $i "; done
-}
-
-run_hook() {
- # If a fourth parameter 'root' is specified, source
- # the hook from a predefined location to avoid privilige
- # escalation through user scripts.
- [ "$4" ] && CPT_HOOK=$CPT_ROOT/etc/cpt-hook
-
- # This is not a misspelling, can be ignored safely.
- # shellcheck disable=2153
- [ -f "$CPT_HOOK" ] || return 0
-
- log "$2" "Running $1 hook"
-
- TYPE=${1:-null} PKG=${2:-null} DEST=${3:-null} . "$CPT_HOOK"
-}
-
-decompress() {
- case $1 in
- *.tar) cat ;;
- *.bz2) bzip2 -cd ;;
- *.xz|*.txz) xz -dcT 0 ;;
- *.tgz|*.gz) gzip -cd ;;
- *.zst) zstd -cd ;;
- esac < "$1"
-}
-
-sh256() {
- # This is a sha256sum function for outputting a standard
- # hash digest. sha256 on BSD systems require an '-r' flag
- # for outputting the same way with sha256sum, and still,
- # it outputs a single space between the hash and the file
- # whereas sha256sum outputs double spaces. It fallbacks to
- # openssl, but that is rarely ever needed.
- { sha256sum "$1" 2>/dev/null ||
- sha256 -r "$1" 2>/dev/null ||
- openssl dgst -r -sha256 "$1" ||
- die "No sha256 program could be run." ;} |
-
- while read -r hash _; do printf '%s %s\n' "$hash" "$1"; done
-}
-
-pkg_isbuilt() (
- # Check if a package is built or not.
- repo_dir=$(pkg_find "$1")
- read -r ver rel < "$repo_dir/version"
-
- set +f
- for tarball in "$bin_dir/$1#$ver-$rel.tar."*; do
- [ -f "$tarball" ] && return 0
- done
- return 1
-)
-
-pkg_lint() {
- # Check that each mandatory file in the package entry exists.
- log "$1" "Checking repository files"
-
- repo_dir=$(pkg_find "$1")
-
- cd "$repo_dir" || die "'$repo_dir' not accessible"
- [ -f sources ] || die "$1" "Sources file not found"
- [ -x build ] || die "$1" "Build file not found or not executable"
- [ -s version ] || die "$1" "Version file not found or empty"
-
- read -r _ release 2>/dev/null < version || die "Version file not found"
- [ "$release" ] || die "Release field not found in version file"
-
- [ "$2" ] || [ -f checksums ] || die "$pkg" "Checksums are missing"
-}
-
-pkg_find() {
- # Use a SEARCH_PATH variable so that we can get the sys_db into
- # the same variable as CPT_PATH. This makes it easier when we are
- # searching for executables instead of CPT_PATH.
- : "${SEARCH_PATH:=$CPT_PATH:$sys_db}"
-
- # Figure out which repository a package belongs to by
- # searching for directories matching the package name
- # in $CPT_PATH/*.
- query=$1 match=$2 type=$3 IFS=:; set --
-
- # Word splitting is intentional here.
- # shellcheck disable=2086
- for path in $SEARCH_PATH ; do
- set +f
-
- for path2 in "$path/"$query; do
- test "${type:--d}" "$path2" && set -f -- "$@" "$path2"
- done
- done
-
- unset IFS
-
- # A package may also not be found due to a repository not being
- # readable by the current user. Either way, we need to die here.
- [ "$1" ] || die "Package '$query' not in any repository"
-
- # Show all search results if called from 'cpt search', else
- # print only the first match.
- [ "$match" ] && printf '%s\n' "$@" || printf '%s\n' "$1"
-}
-
-pkg_list() {
- # List installed packages. As the format is files and
- # directories, 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 '$1' to mimic a failed glob which indicates that
- # nothing is installed.
- cd "$sys_db" 2>/dev/null || set -- "$sys_db/"\*
-
- # Optional arguments can be passed to check for specific
- # packages. If no arguments are passed, list all. As we
- # loop over '$@', if there aren't any arguments we can
- # just set the directory contents to the argument list.
- [ "$1" ] || { set +f; set -f -- *; }
-
- # If the 'glob' above failed, exit early as there are no
- # packages installed.
- [ "$1" = "$sys_db/"\* ] && return 1
-
- # Loop over each package and print its name and version.
- for pkg do
- [ -d "$pkg" ] || { log "$pkg" "not installed"; return 1; }
-
- read -r version 2>/dev/null < "$pkg/version" || version=null
- printf '%s\n' "$pkg $version"
- done
-}
-
-pkg_cache() {
- read -r version release 2>/dev/null < "$(pkg_find "$1")/version"
-
- set +f; set -f -- "$bin_dir/$1#$version-$release.tar."*
- tar_file=$1
-
- [ -f "$tar_file" ]
-}
-
-pkg_sources() {
- # Download any remote package sources. The existence of local
- # files is also checked.
- log "$1" "Downloading sources"
-
- # Store each downloaded source in a directory named after the
- # package it belongs to. This avoid conflicts between two packages
- # having a source of the same name.
- mkdir -p "$src_dir/$1" && cd "$src_dir/$1"
-
- repo_dir=$(pkg_find "$1")
-
- while read -r src dest || [ "$src" ]; do
- # Comment.
- if [ -z "${src##\#*}" ]; then :
-
- # Remote source (cached).
- elif [ -f "${src##*/}" ]; then
- log "$1" "Found cached source '${src##*/}'"
-
- # Remote git repository.
- elif [ -z "${src##git+*}" ]; then
- # This is a checksums check, skip it.
- [ "$2" ] && continue
-
- # Since git is an optional dependency, make sure
- # it is available on the system.
- command -v git >/dev/null ||
- die "git must be installed in order to acquire ${src##git+}"
-
- mkdir -p "$mak_dir/$1/$dest"
-
- # Run in a subshell to keep the variables, path and
- # argument list local to each loop iteration.
- (
- repo_src=${src##git+}
-
- log "$1" "Cloning ${repo_src%[@#]*}"
-
- # Git has no option to clone a repository to a
- # specific location so we must do it ourselves
- # beforehand.
- cd "$mak_dir/$1/$dest" 2>/dev/null || die
-
- # Clear the argument list as we'll be overwriting
- # it below based on what kind of checkout we're
- # dealing with.
- set -- "$repo_src"
-
- # If a branch was given, shallow clone it directly.
- # This speeds things up as we don't have to grab
- # a lot of unneeded commits.
- [ "${src##*@*}" ] ||
- set -- -b "${src##*@}" "${repo_src%@*}"
-
- # Maintain compatibility with older versions of
- # cpt by shallow cloning all branches. This has
- # the added benefit of allowing checkouts of
- # specific commits in specific branches.
- [ "${src##*#*}" ] ||
- set -- --no-single-branch "${repo_src%#*}"
-
- # Always do a shallow clone as we will unshallow it if
- # needed later (when a commit is desired).
- git clone --depth=1 "$@" .
-
- ) || die "$1" "Failed to clone $src"
-
- # Remote source.
- elif [ -z "${src##*://*}" ]; then
- log "$1" "Downloading $src"
-
- curl "$src" -fLo "${src##*/}" || {
- rm -f "${src##*/}"
- die "$1" "Failed to download $src"
- }
-
- # Local source.
- elif [ -f "$repo_dir/$src" ]; then
- log "$1" "Found local file '$src'"
-
- else
- die "$1" "No local file '$src'"
- fi
- done < "$repo_dir/sources"
-}
-
-pkg_extract() {
- # Extract all source archives to the build directory and copy over
- # any local repository files.
- log "$1" "Extracting sources"
-
- repo_dir=$(pkg_find "$1")
-
- while read -r src dest || [ "$src" ]; do
- mkdir -p "$mak_dir/$1/$dest" && cd "$mak_dir/$1/$dest"
-
- case $src in
- # Git repository with supplied commit hash.
- git+*\#*)
- log "Checking out ${src##*#}"
-
- # A commit was requested, unshallow the repository.
- # This will convert it to a regular repository with
- # full history.
- git fetch --unshallow
-
- # Try to checkout the repository. If we fail here,
- # the requested commit doesn't exist.
- git -c advice.detachedHead=false checkout "${src##*#}" ||
- die "Commit hash ${src##*#} doesn't exist"
- ;;
-
- # Git repository, comment or blank line.
- git+*|\#*|'') continue ;;
-
- # Only 'tar' an 'zip' archives are currently supported for
- # extraction. Other filetypes are simply copied to '$mak_dir'
- # which allows for manual extraction.
- *://*.tar|*://*.tar.??|*://*.tar.???|*://*.tar.????|*://*.tgz|*://*.txz)
-
- decompress "$src_dir/$1/${src##*/}" > .ktar
-
- "$tar" xf .ktar || die "$1" "Couldn't extract ${src##*/}"
-
- # We now list the contents of the tarball so we can do our
- # version of 'strip-components'.
- "$tar" tf .ktar |
- while read -r file; do printf '%s\n' "${file%%/*}"; done |
-
- # Do not repeat files.
- uniq |
-
- # For every directory in the base we move each file
- # inside it to the upper directory.
- while read -r dir ; do
-
- # Skip if we are not dealing with a directory here.
- # This way we don't remove files on the upper directory
- # if a tar archive doesn't need directory stripping.
- [ -d "${dir#.}" ] || continue
-
- # Change into the directory in a subshell so we don't
- # need to cd back to the upper directory.
- (
- cd "$dir"
-
- # We use find because we want to move hidden files
- # as well.
- #
- # Skip the file if it has the same name as the directory.
- # We will deal with it later.
- #
- # Word splitting is intentional here.
- # shellcheck disable=2046
- find . \( ! -name . -prune \) ! -name "$dir" \
- -exec mv -f {} .. \;
-
- # If a file/directory with the same name as the directory
- # exists, append a '.cptbak' to it and move it to the
- # upper directory.
- ! [ -e "$dir" ] || mv "$dir" "../${dir}.cptbak"
- )
- rmdir "$dir"
-
- # If a backup file exists, move it into the original location.
- ! [ -e "${dir}.cptbak" ] || mv "${dir}.cptbak" "$dir"
- done
-
- # Clean up the temporary tarball.
- rm -f .ktar
- ;;
-
- *://*.zip)
- unzip "$src_dir/$1/${src##*/}" ||
- die "$1" "Couldn't extract ${src##*/}"
-
- ;;
-
- *)
- # Local file.
- if [ -f "$repo_dir/$src" ]; then
- cp -f "$repo_dir/$src" .
-
- # Remote file.
- elif [ -f "$src_dir/$1/${src##*/}" ]; then
- cp -f "$src_dir/$1/${src##*/}" .
-
- else
- die "$1" "Local file $src not found"
- fi
- ;;
- esac
- done < "$repo_dir/sources"
-}
-
-pkg_depends() {
- # Resolve all dependencies and generate an ordered list.
- # This does a depth-first search. The deepest dependencies are
- # listed first and then the parents in reverse order.
- contains "$deps" "$1" || {
- # Filter out non-explicit, aleady installed dependencies.
- # Only filter installed if called from 'pkg_build()'.
- [ "$pkg_build" ] && [ -z "$2" ] &&
- (pkg_list "$1" >/dev/null) && return
-
- # Recurse through the dependencies of the child packages.
- while read -r dep _ || [ "$dep" ]; do
- [ "${dep##\#*}" ] && pkg_depends "$dep"
- done 2>/dev/null < "$(pkg_find "$1")/depends" ||:
-
- # After child dependencies are added to the list,
- # add the package which depends on them.
- [ "$2" = explicit ] || deps="$deps $1 "
- }
-}
-
-pkg_order() {
- # Order a list of packages based on dependence and
- # take into account pre-built tarballs if this is
- # to be called from 'cpt i'.
- order=; redro=; deps=
-
- for pkg do case $pkg in
- *.tar.*) deps="$deps $pkg " ;;
- *) pkg_depends "$pkg" raw
- esac done
-
- # Filter the list, only keeping explicit packages.
- # The purpose of these two loops is to order the
- # argument list based on dependence.
- for pkg in $deps; do ! contains "$*" "$pkg" || {
- order="$order $pkg "
- redro=" $pkg $redro"
- } done
-
- deps=
-}
-
-pkg_strip() {
- # Strip package binaries and libraries. This saves space on the
- # system as well as on the tarballs we ship for installation.
-
- # Package has stripping disabled, stop here.
- [ -f "$mak_dir/$pkg/nostrip" ] && return
-
- log "$1" "Stripping binaries and libraries"
-
- find "$pkg_dir/$1" -type f | while read -r file; do
- case $(od -A o -t c -N 18 "$file") in
- # REL (object files (.o), static libraries (.a)).
- *177*E*L*F*0000020\ 001\ *|*\!*\<*a*r*c*h*\>*)
- strip -g -R .comment -R .note "$file"
- ;;
-
- # EXEC (static binaries).
- # DYN (shared libraries, dynamic binaries).
- # Shared libraries keep global symbols in a separate ELF section
- # called '.dynsym'. '--strip-all/-s' does not touch the dynamic
- # symbol entries which makes this safe to do.
- *177*E*L*F*0000020\ 00[23]\ *)
- strip -s -R .comment -R .note "$file"
- ;;
- esac
- done 2>/dev/null ||:
-}
-
-pkg_fixdeps() {
- # Dynamically look for missing runtime dependencies by checking
- # each binary and library with 'ldd'. This catches any extra
- # libraries and or dependencies pulled in by the package's
- # build suite.
- log "$1" "Checking for missing dependencies"
-
- # Go to the directory containing the built package to
- # simplify path building.
- cd "$pkg_dir/$1/$pkg_db/$1"
-
- # Make a copy of the depends file if it exists to have a
- # reference to 'diff' against.
- if [ -f depends ]; then
- cp -f depends "$mak_dir/d"
- dep_file=$mak_dir/d
- else
- dep_file=/dev/null
- fi
-
- # Generate a list of all installed manifests.
- pkg_name=$1
- set +f; set -f -- "$sys_db/"*/manifest
-
- # Get a list of binaries and libraries, false files
- # will be found, however it's faster to get 'ldd' to check
- # them anyway than to filter them out.
- find "$pkg_dir/$pkg_name/" -type f 2>/dev/null |
-
- while read -r file; do
- # Run 'ldd' on the file and parse each line. The code
- # then checks to see which packages own the linked
- # libraries and it prints the result.
- ldd "$file" 2>/dev/null | while read -r dep; do
- # Skip lines containing 'ldd'.
- [ "${dep##*ldd*}" ] || continue
-
- # Extract the file path from 'ldd' output, and
- # canonicalize the path.
- dep=${dep#* => }
- dep=${dep% *}
- dep=$(cpt-readlink "$dep")
-
- # Figure out which package owns the file.
- own=$("$grep" -lFx "${dep#$CPT_ROOT}" "$@")
-
- # If the package wasn't found, retry by removing
- # the '/usr' prefix.
- if [ -z "$own" ] && [ -z "${dep##$CPT_ROOT/usr*}" ]; then
- own=$("$grep" -lFx "${dep#$CPT_ROOT/usr}" "$@")
- dep=${dep#/usr}
- fi
-
- # Extract package name from 'grep' match.
- own=${own%/*}
- own=${own##*/}
-
- case $own in "$pkg_name"|"$pkg_name-bin"|"") continue ; esac
- printf 'Found %s (%s) in (%s)\n' "$own" "$dep" \
- "${file##$pkg_dir/$pkg_name}" >/dev/tty
-
- printf '%s\n' "$own"
- done ||:
- done >> depends
-
- # Remove duplicate entries from the new depends file.
- # This removes duplicate lines looking *only* at the
- # first column.
- sort -uk1,1 -o depends depends 2>/dev/null ||:
-
- # Display a diff of the new dependencies against the old ones.
- diff -U 3 "$dep_file" depends 2>/dev/null ||:
-
- # Remove the depends file if it is empty.
- [ -s depends ] || rm -f depends
-}
-
-pkg_manifest() (
- # Generate the package's manifest file. This is a list of each file
- # and directory inside the package. The file is used when uninstalling
- # packages, checking for package conflicts and for general debugging.
- log "$1" "Generating manifest"
-
- # This function runs as a sub-shell to avoid having to 'cd' back to the
- # prior directory before being able to continue.
- cd "${2:-$pkg_dir}/$1"
-
- # find: Print all files and directories and append '/' to directories.
- # sort: Sort the output in *reverse*. Directories appear *after* their
- # contents.
- # sed: Remove the first character in each line (./dir -> /dir) and
- # remove all lines which only contain '.'.
- find . -type d -exec printf '%s/\n' {} + -o -print |
- sort -r | sed '/^\.\/$/d;ss.ss' > "${2:-$pkg_dir}/$1/$pkg_db/$1/manifest"
-)
-
-pkg_etcsums() (
- # This function runs as a sub-shell to avoid having to 'cd' back to the
- # prior directory before being able to continue.
- cd "$pkg_dir/$1/etc" 2>/dev/null || return 0; cd ..
-
- # Generate checksums for each configuration file in the package's
- # /etc/ directory for use in "smart" handling of these files.
- log "$1" "Generating etcsums"
-
-
- find etc -type f | while read -r file; do
- sh256 "$file"
- done > "$pkg_dir/$1/$pkg_db/$1/etcsums"
-)
-
-pkg_tar() {
- # Create a tarball from the built package's files.
- # This tarball also contains the package's database entry.
- log "$1" "Creating tarball"
-
- # Read the version information to name the package.
- read -r version release < "$(pkg_find "$1")/version"
-
- # Create a tarball from the contents of the built package.
- "$tar" cf - -C "$pkg_dir/$1" . |
- case $CPT_COMPRESS in
- bz2) bzip2 -z ;;
- xz) xz -zT 0 ;;
- gz) gzip -6 ;;
- zst) zstd -3 ;;
- *) gzip -6 ;; # Fallback to gzip
- esac \
- > "$bin_dir/$1#$version-$release.tar.$CPT_COMPRESS"
-
- log "$1" "Successfully created tarball"
-
- run_hook post-package "$1" "$bin_dir/$1#$version-$release.tar.$CPT_COMPRESS"
-}
-
-pkg_build() {
- # Build packages and turn them into packaged tarballs. This function
- # also checks checksums, downloads sources and ensure all dependencies
- # are installed.
- pkg_build=1
-
- log "Resolving dependencies"
-
- for pkg do contains "$explicit" "$pkg" || {
- pkg_depends "$pkg" explicit
-
- # Mark packages passed on the command-line
- # separately from those detected as dependencies.
- explicit="$explicit $pkg "
- } done
-
- [ "$pkg_update" ] || explicit_build=$explicit
-
- # If an explicit package is a dependency of another explicit
- # package, remove it from the explicit list as it needs to be
- # installed as a dependency.
- # shellcheck disable=2086
- for pkg do
- contains "$deps" "$pkg" && explicit=$(pop "$pkg" from $explicit)
- done
-
- # See [1] at top of script.
- # shellcheck disable=2046,2086
- set -- $deps $explicit
-
- log "Building: $*"
-
- # Only ask for confirmation if more than one package needs to be built.
- [ $# -gt 1 ] || [ "$pkg_update" ] && { prompt || exit 0 ;}
-
- log "Checking for pre-built dependencies"
-
- for pkg do pkg_lint "$pkg"; done
-
- # Install any pre-built dependencies if they exist in the binary
- # directory and are up to date.
- for pkg do ! contains "$explicit_build" "$pkg" && pkg_cache "$pkg" && {
- log "$pkg" "Found pre-built binary, installing"
- (CPT_FORCE=1 cpt-install "$tar_file")
-
- # Remove the now installed package from the build list.
- # See [1] at top of script.
- # shellcheck disable=2046,2086
- set -- $(pop "$pkg" from "$@")
- } done
-
- for pkg do pkg_sources "$pkg"; done
-
- pkg_verify "$@"
-
- # Finally build and create tarballs for all passed packages and
- # dependencies.
- for pkg do
- log "$pkg" "Building package ($((in = in + 1))/$#)"
-
- pkg_extract "$pkg"
- repo_dir=$(pkg_find "$pkg")
-
- read -r build_version _ < "$repo_dir/version"
-
- # Install built packages to a directory under the package name
- # to avoid collisions with other packages.
- mkdir -p "$pkg_dir/$pkg/$pkg_db"
-
- # Move to the build directory.
- cd "$mak_dir/$pkg"
-
- log "$pkg" "Starting build"
-
- run_hook pre-build "$pkg" "$pkg_dir/$pkg"
-
- # Call the build script, log the output to the terminal
- # and to a file. There's no PIPEFAIL in POSIX shelll so
- # we must resort to tricks like killing the script ourselves.
- { "$repo_dir/build" "$pkg_dir/$pkg" "$build_version" "$sys_arch" 2>&1 || {
- log "$pkg" "Build failed"
- log "$pkg" "Log stored to $log_dir/$pkg-$time-$pid"
- run_hook build-fail "$pkg" "$pkg_dir/$pkg"
- pkg_clean
- kill 0
- } } | tee "$log_dir/$pkg-$time-$pid"
-
- # Delete the log file if the build succeeded to prevent
- # the directory from filling very quickly with useless logs.
- [ "$CPT_KEEPLOG" = 1 ] || rm -f "$log_dir/$pkg-$time-$pid"
-
- # Copy the repository files to the package directory.
- # This acts as the database entry.
- cp -LRf "$repo_dir" "$pkg_dir/$pkg/$pkg_db/"
-
- # We never ever want this. Let's end the endless conflicts
- # and remove it. This will be the only exception for a
- # specific removal of this kind.
- find "$pkg_dir/$pkg" -name charset.alias -exec rm -f {} +
-
- log "$pkg" "Successfully built package"
-
- run_hook post-build "$pkg" "$pkg_dir/$pkg"
-
- # Create the manifest file early and make it empty.
- # This ensures that the manifest is added to the manifest.
- : > "$pkg_dir/$pkg/$pkg_db/$pkg/manifest"
-
- # If the package contains '/etc', add a file called
- # 'etcsums' to the manifest. See comment directly above.
- [ -d "$pkg_dir/$pkg/etc" ] &&
- : > "$pkg_dir/$pkg/$pkg_db/$pkg/etcsums"
-
- pkg_strip "$pkg"
- pkg_fixdeps "$pkg"
- pkg_manifest "$pkg"
- pkg_etcsums "$pkg"
- pkg_tar "$pkg"
-
- # Install only dependencies of passed packages.
- # Skip this check if this is a package update.
- contains "$explicit" "$pkg" && [ -z "$pkg_update" ] && continue
-
- log "$pkg" "Needed as a dependency or has an update, installing"
-
- (CPT_FORCE=1 cpt-install "$pkg")
- done
-
- # End here as this was a system update and all packages have been installed.
- [ "$pkg_update" ] && return
-
- log "Successfully built package(s)"
-
- # Turn the explicit packages into a 'list'.
- # See [1] at top of script.
- # shellcheck disable=2046,2086
- set -- $explicit
-
- # Only ask for confirmation if more than one package needs to be installed.
- [ $# -gt 1 ] && prompt "Install built packages? [$*]" && {
- cpt-install "$@"
- return
- }
-
- log "Run 'cpt i $*' to install the package(s)"
-}
-
-pkg_checksums() {
- # Generate checksums for packages.
- repo_dir=$(pkg_find "$1")
-
- while read -r src _ || [ "$src" ]; do
- # Comment.
- if [ -z "${src##\#*}" ]; then
- continue
-
- # File is local to the package.
- elif [ -f "$repo_dir/$src" ]; then
- src_path=$repo_dir/${src%/*}
-
- # File is remote and was downloaded.
- elif [ -f "$src_dir/$1/${src##*/}" ]; then
- src_path=$src_dir/$1
-
- # File is a git repository.
- elif [ -z "${src##git+*}" ]; then
- printf 'git %s\n' "$src"
- continue
-
- # Die here if source for some reason, doesn't exist.
- else
- die "$1" "Couldn't find source '$src'"
- fi
-
- # An easy way to get 'sha256sum' to print with the 'basename'
- # of files is to 'cd' to the file's directory beforehand.
- (cd "$src_path" && sh256 "${src##*/}") ||
- die "$1" "Failed to generate checksums"
- done < "$repo_dir/sources"
-}
-
-pkg_verify() {
- # Verify all package checksums. This is achieved by generating
- # a new set of checksums and then comparing those with the old
- # set.
- for pkg do pkg_checksums "$pkg" | diff - "$(pkg_find "$pkg")/checksums" || {
- log "$pkg" "Checksum mismatch"
-
- # Instead of dying above, log it to the terminal. Also define a
- # variable so we *can* die after all checksum files have been
- # checked.
- mismatch="$mismatch$pkg "
- } done
-
- [ -z "$mismatch" ] || die "Checksum mismatch with: ${mismatch% }"
-}
-
-pkg_conflicts() {
- # Check to see if a package conflicts with another.
- log "$1" "Checking for package conflicts"
-
- # Filter the tarball's manifest and select only files
- # and any files they resolve to on the filesystem
- # (/bin/ls -> /usr/bin/ls).
- while read -r file; do
- case $file in */) continue; esac
-
- # Use $CPT_ROOT in filename so that we follow its symlinks.
- file=$CPT_ROOT/${file#/}
-
- # We will only follow the symlinks of the directories, so we
- # reserve the directory name in this 'dirname' value. cpt-readlink
- # functions in a similar fashion to 'readlink -f', it makes sure
- # every component except for the first one to be available on
- # the directory structure. If we cannot find it in the system,
- # we don't need to make this much more complex by trying so
- # hard to find it. Simply use the original directory name.
- dirname="$(cpt-readlink "${file%/*}" 2>/dev/null)" ||
- dirname="${file%/*}"
-
-
- # Combine the dirname and file values, and print them into the
- # temporary manifest to be parsed.
- printf '%s/%s\n' "${dirname#$CPT_ROOT}" "${file##*/}"
-
- done < "$tar_dir/$1/$pkg_db/$1/manifest" > "$CPT_TMPDIR/$pid-m"
-
- p_name=$1
-
- # Generate a list of all installed package manifests
- # and remove the current package from the list.
- # shellcheck disable=2046,2086
- set -- $(set +f; pop "$sys_db/$p_name/manifest" from "$sys_db"/*/manifest)
-
- [ -s "$CPT_TMPDIR/$pid-m" ] || return 0
-
- # In rare cases where the system only has one package installed
- # and you are reinstalling that package, grep will try to read from
- # standard input if we continue here.
- #
- # Also, if we don't have any packages installed grep will give an
- # error. This will not cause the installation to fail, but we don't
- # need to check for conflicts if that's the case anyway. If we have
- # only zero packages or one package, just stop wasting time and continue
- # with the installation.
- [ "$1" ] && [ -f "$1" ] || return 0
-
- # Store the list of found conflicts in a file as we will be using the
- # information multiple times. Storing it in the cache dir allows us
- # to be lazy as they'll be automatically removed on script end.
- "$grep" -Fxf "$CPT_TMPDIR/$pid-m" -- "$@" > "$CPT_TMPDIR/$pid-c" ||:
-
-
- # Enable alternatives automatically if it is safe to do so.
- # This checks to see that the package that is about to be installed
- # doesn't overwrite anything it shouldn't in '/var/db/cpt/installed'.
- "$grep" -q ":/var/db/cpt/installed/" "$CPT_TMPDIR/$pid-c" || choice_auto=1
-
- # Use 'grep' to list matching lines between the to
- # be installed package's manifest and the above filtered
- # list.
- if [ "$CPT_CHOICE" != 0 ] && [ "$choice_auto" = 1 ]; then
-
- # This is a novel way of offering an "alternatives" system.
- # It is entirely dynamic and all "choices" are created and
- # destroyed on the fly.
- #
- # When a conflict is found between two packages, the file
- # is moved to a directory called "choices" and its name
- # changed to store its parent package and its intended
- # location.
- #
- # The package's manifest is then updated to reflect this
- # new location.
- #
- # The 'cpt choices' command parses this directory and
- # offers you the CHOICE of *swapping* entries in this
- # directory for those on the filesystem.
- #
- # The choices command does the same thing we do here,
- # it rewrites manifests and moves files around to make
- # this work.
- #
- # Pretty nifty huh?
- while IFS=: read -r _ con; do
- printf '%s\n' "Found conflict $con"
-
- # Create the "choices" directory inside of the tarball.
- # This directory will store the conflicting file.
- mkdir -p "$tar_dir/$p_name/${cho_dir:=var/db/cpt/choices}"
-
- # Construct the file name of the "db" entry of the
- # conflicting file. (pkg_name>usr>bin>ls)
- con_name=$(printf %s "$con" | sed 's|/|>|g')
-
- # Move the conflicting file to the choices directory
- # and name it according to the format above.
- mv -f "$tar_dir/$p_name/$con" \
- "$tar_dir/$p_name/$cho_dir/$p_name$con_name" 2>/dev/null || {
- log "File must be in ${con%/*} and not a symlink to it"
- log "This usually occurs when a binary is installed to"
- log "/sbin instead of /usr/bin (example)"
- log "Before this package can be used as an alternative,"
- log "this must be fixed in $p_name. Contact the maintainer"
- die "by checking 'git log' or by running 'cpt-maintainer'"
- }
- done < "$CPT_TMPDIR/$pid-c"
-
- # Rewrite the package's manifest to update its location
- # to its new spot (and name) in the choices directory.
- pkg_manifest "$p_name" "$tar_dir" 2>/dev/null
-
- elif [ -s "$CPT_TMPDIR/$pid-c" ]; then
- log "Package '$p_name' conflicts with another package" "" "!>"
- log "Run 'CPT_CHOICE=1 cpt i $p_name' to add conflicts" "" "!>"
- die "as alternatives."
- fi
-}
-
-pkg_swap() {
- # Swap between package alternatives.
- pkg_list "$1" >/dev/null
-
- alt=$(printf %s "$1$2" | sed 's|/|>|g')
- cd "$sys_db/../choices"
-
- [ -f "$alt" ] || [ -h "$alt" ] ||
- die "Alternative '$1 $2' doesn't exist"
-
- if [ -f "$2" ]; then
- # Figure out which package owns the file we are going to swap for
- # another package's.
- #
- # Print the full path to the manifest file which contains
- # the match to our search.
- pkg_owns=$(set +f; "$grep" -lFx "$2" "$sys_db/"*/manifest) ||:
-
- # Extract the package name from the path above.
- pkg_owns=${pkg_owns%/*}
- pkg_owns=${pkg_owns##*/}
-
- [ "$pkg_owns" ] ||
- die "File '$2' exists on filesystem but isn't owned"
-
- log "Swapping '$2' from '$pkg_owns' to '$1'"
-
- # Convert the current owner to an alternative and rewrite
- # its manifest file to reflect this. We then resort this file
- # so no issues arise when removing packages.
- cp -Pf "$CPT_ROOT/$2" "$pkg_owns>${alt#*>}"
- sed "s#^$(regesc "$2")#${PWD#$CPT_ROOT}/$pkg_owns>${alt#*>}#" \
- "../installed/$pkg_owns/manifest" |
- sort -r -o "../installed/$pkg_owns/manifest"
- fi
-
- # Convert the desired alternative to a real file and rewrite
- # the manifest file to reflect this. The reverse of above.
- mv -f "$alt" "$CPT_ROOT/$2"
- sed "s#^${PWD#$CPT_ROOT}/$(regesc "$alt")#$2#" "../installed/$1/manifest" |
- sort -r -o "../installed/$1/manifest"
-}
-
-pkg_etc() {
- [ -d "$tar_dir/$pkg_name/etc" ] || return 0
-
- (cd "$tar_dir/$pkg_name"
-
- # Create all directories beforehand.
- find etc -type d | while read -r dir; do
- mkdir -p "$CPT_ROOT/$dir"
- done
-
- # Handle files in /etc/ based on a 3-way checksum check.
- find etc ! -type d | while read -r file; do
- { sum_new=$(sh256 "$file")
- sum_sys=$(cd "$CPT_ROOT/"; sh256 "$file")
- sum_old=$("$grep" "$file$" "$mak_dir/c"); } 2>/dev/null ||:
-
- log "$pkg_name" "Doing 3-way handshake for $file"
- printf '%s\n' "Previous: ${sum_old:-null}"
- printf '%s\n' "System: ${sum_sys:-null}"
- printf '%s\n' "New: ${sum_new:-null}"
-
- # Use a case statement to easily compare three strings at
- # the same time. Pretty nifty.
- case ${sum_old:-null}${sum_sys:-null}${sum_new} in
- # old = Y, sys = X, new = Y
- "${sum_new}${sum_sys}${sum_old}")
- log "Skipping $file"
- continue
- ;;
-
- # old = X, sys = X, new = X
- # old = X, sys = Y, new = Y
- # old = X, sys = X, new = Y
- "${sum_old}${sum_old}${sum_old}"|\
- "${sum_old:-null}${sum_sys}${sum_sys}"|\
- "${sum_sys}${sum_old}"*)
- log "Installing $file"
- new=
- ;;
-
- # All other cases.
- *)
- warn "($pkg_name) saving /$file as /$file.new" "->"
- new=.new
- ;;
- esac
-
- cp -fPp "$file" "$CPT_ROOT/${file}${new}"
- chown root:root "$CPT_ROOT/${file}${new}" 2>/dev/null
- done) ||:
-}
-
-pkg_remove() {
- # Remove a package and all of its files. The '/etc' directory
- # is handled differently and configuration files are *not*
- # overwritten.
- pkg_list "$1" >/dev/null || return
-
- # Make sure that nothing depends on this package.
- [ "$CPT_FORCE" = 1 ] || {
- log "$1" "Checking for reverse dependencies"
-
- (cd "$sys_db"; set +f; grep -lFx "$1" -- */depends) &&
- die "$1" "Can't remove package, others depend on it"
- }
- # Block being able to abort the script with 'Ctrl+C' during removal.
- # Removes all risk of the user aborting a package removal leaving
- # an incomplete package installed.
- trap '' INT
-
- if [ -x "$sys_db/$1/pre-remove" ]; then
- log "$1" "Running pre-remove script"
- "$sys_db/$1/pre-remove" ||:
- fi
-
- # Create a temporary list of all directories, so we don't accidentally
- # remove anything from packages that create empty directories for a
- # purpose (such as baselayout).
- manifest_list="$(set +f; pop "$sys_db/$1/manifest" from "$sys_db/"*/manifest)"
- # shellcheck disable=2086
- [ "$manifest_list" ] && grep -h '/$' $manifest_list | sort -ur > "$mak_dir/dirs"
-
- run_hook pre-remove "$1" "$sys_db/$1" root
-
- while read -r file; do
- # The file is in '/etc' skip it. This prevents the package
- # manager from removing user edited configuration files.
- [ "${file##/etc/*}" ] || continue
-
- if [ -d "$CPT_ROOT/$file" ]; then
- "$grep" -Fxq "$file" "$mak_dir/dirs" 2>/dev/null && continue
- rmdir "$CPT_ROOT/$file" 2>/dev/null || continue
- else
- rm -f "$CPT_ROOT/$file"
- fi
- done < "$sys_db/$1/manifest"
-
- # Reset 'trap' to its original value. Removal is done so
- # we no longer need to block 'Ctrl+C'.
- trap pkg_clean EXIT INT
-
- run_hook post-remove "$1" "$CPT_ROOT/" root
-
- log "$1" "Removed successfully"
-}
-
-pkg_install() {
- # Install a built package tarball.
-
- # 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 "$1" ] && [ -z "${1%%*.tar*}" ] ; then
- tar_file=$1
- pkg_name=${1##*/}
- pkg_name=${pkg_name%#*}
-
- else
- pkg_cache "$1" ||
- die "package has not been built, run 'cpt b pkg'"
-
- pkg_name=$1
- fi
-
- mkdir -p "$tar_dir/$pkg_name"
- log "$pkg_name" "Extracting $tar_file"
-
- # Extract the tarball to catch any errors before installation begins.
- decompress "$tar_file" | "$tar" xf - -C "$tar_dir/$pkg_name"
-
- [ -f "$tar_dir/$pkg_name/$pkg_db/$pkg_name/manifest" ] ||
- die "'${tar_file##*/}' is not a valid CPT package"
-
- # Ensure that the tarball's manifest is correct by checking that
- # each file and directory inside of it actually exists.
- [ "$CPT_FORCE" != 1 ] && log "$pkg_name" "Checking package manifest" &&
- while read -r line; do
- # Skip symbolic links
- [ -h "$tar_dir/$pkg_name/$line" ] ||
- [ -e "$tar_dir/$pkg_name/$line" ] || {
- log "File $line missing from tarball but mentioned in manifest" "" "!>"
- TARBALL_FAIL=1
- }
- done < "$tar_dir/$pkg_name/$pkg_db/$pkg_name/manifest"
- [ "$TARBALL_FAIL" ] && {
- log "You can still install this package by setting CPT_FORCE variable"
- die "$pkg_name" "Missing files in manifest"
- }
-
- log "$pkg_name" "Checking that all dependencies are installed"
-
- # Make sure that all run-time dependencies are installed prior to
- # installing the package.
- [ -f "$tar_dir/$pkg_name/$pkg_db/$pkg_name/depends" ] &&
- [ "$CPT_FORCE" != 1 ] &&
- while read -r dep dep_type || [ "$dep" ]; do
- [ "${dep##\#*}" ] || continue
- [ "$dep_type" ] || pkg_list "$dep" >/dev/null ||
- install_dep="$install_dep'$dep', "
- done < "$tar_dir/$pkg_name/$pkg_db/$pkg_name/depends"
-
- [ "$install_dep" ] && die "$1" "Package requires ${install_dep%, }"
-
- run_hook pre-install "$pkg_name" "$tar_dir/$pkg_name" root
-
- pkg_conflicts "$pkg_name"
-
- log "$pkg_name" "Installing package incrementally"
-
- # Block being able to abort the script with Ctrl+C during installation.
- # Removes all risk of the user aborting a package installation leaving
- # an incomplete package installed.
- trap '' INT
-
- # If the package is already installed (and this is an upgrade) make a
- # backup of the manifest and etcsums files.
- cp -f "$sys_db/$pkg_name/manifest" "$mak_dir/m" 2>/dev/null ||:
- cp -f "$sys_db/$pkg_name/etcsums" "$mak_dir/c" 2>/dev/null ||:
-
- # This is repeated multiple times. Better to make it a function.
- pkg_rsync() {
- rsync "--chown=$USER:$USER" --chmod=Du-s,Dg-s,Do-s \
- -WhHKa --no-compress --exclude /etc "${1:---}" \
- "$tar_dir/$pkg_name/" "$CPT_ROOT/"
- }
-
- # Install the package by using 'rsync' and overwrite any existing files
- # (excluding '/etc/').
- pkg_rsync --info=progress2
- pkg_etc
-
- # Remove any leftover files if this is an upgrade.
- "$grep" -vFxf "$sys_db/$pkg_name/manifest" "$mak_dir/m" 2>/dev/null |
-
- while read -r file; do
- file=$CPT_ROOT/$file
-
- # Skip deleting some leftover files.
- case $file in /etc/*) continue; esac
-
- # Remove files.
- if [ -f "$file" ] && [ ! -L "$file" ]; then
- rm -f "$file"
-
- # Remove file symlinks.
- elif [ -h "$file" ] && [ ! -d "$file" ]; then
- unlink "$file" ||:
-
- # Skip directory symlinks.
- elif [ -h "$file" ] && [ -d "$file" ]; then :
-
- # Remove directories if empty.
- elif [ -d "$file" ]; then
- rmdir "$file" 2>/dev/null ||:
- fi
- done ||:
-
- log "$pkg_name" "Verifying installation"
- { pkg_rsync; pkg_rsync; } ||:
-
- # Reset 'trap' to its original value. Installation is done so
- # we no longer need to block 'Ctrl+C'.
- trap pkg_clean EXIT INT
-
- if [ -x "$sys_db/$pkg_name/post-install" ]; then
- log "$pkg_name" "Running post-install script"
- "$sys_db/$pkg_name/post-install" ||:
- fi
-
- run_hook post-install "$pkg_name" "$sys_db/$pkg_name" root
-
- log "$pkg_name" "Installed successfully"
-}
-
-pkg_fetch() {
- log "Updating repositories"
-
- run_hook pre-fetch
-
- # Create a list of all repositories.
- # See [1] at top of script.
- # shellcheck disable=2046,2086
- { IFS=:; set -- $CPT_PATH; unset IFS; }
-
- # Update each repository in '$CPT_PATH'. It is assumed that
- # each repository is 'git' tracked.
- for repo do
- # Go to the root of the repository (if it exists).
- cd "$repo"
- cd "$(git rev-parse --show-toplevel 2>/dev/null)" 2>/dev/null ||:
-
- if [ -d .git ]; then
-
- command -v git >/dev/null || {
- log "$repo" " "
- printf '%s\n' "Git is not installed, skipping."
- continue
- }
-
- [ "$(git remote 2>/dev/null)" ] || {
- log "$repo" " "
- printf '%s\n' "No remote, skipping."
- continue
- }
-
- contains "$repos" "$PWD" || {
- repos="$repos $PWD "
-
- # Display a tick if signing is enabled for this
- # repository.
- case $(git config merge.verifySignatures) in
- true) log "$PWD" "[signed ✓] " ;;
- *) log "$PWD" " " ;;
- esac
-
- if [ -w "$PWD" ] && [ "$uid" != 0 ]; then
- git fetch
- git merge
- git submodule update --remote --init -f
-
- else
- [ "$uid" = 0 ] || log "$PWD" "Need root to update"
-
- # Find out the owner of the repository and spawn
- # git as this user below.
- #
- # This prevents 'git' from changing the original
- # ownership of files and directories in the rare
- # case that the repository is owned by a 3rd user.
- (
- user=$(cpt-stat "$PWD") || user=root
- id -u "$user" >/dev/null 2>&1 || user=root
-
- [ "$user" = root ] ||
- log "Dropping permissions to $user for pull"
-
- git_cmd="git fetch && git merge && git submodule update --remote --init -f"
- case $su in *su) git_cmd="'$git_cmd'"; esac
-
- # Spawn a subshell to run multiple commands as
- # root at once. This makes things easier on users
- # who aren't using persist/timestamps for auth
- # caching.
- user=$user as_root sh -c "$git_cmd"
- )
- fi
- }
- elif [ -f .rsync ]; then
- read -r remote < .rsync
- if [ -w "$PWD" ] && [ "$uid" != 0 ]; then
- rsync -acvzzC --include=core --delete "$remote/" "$PWD"
- else
- [ "$uid" = 0 ] || log "$PWD" "Need root to update"
-
- # Similar to the git update, we find the owner of
- # the repository and spawn rsync as that user.
- (
- user=$(cpt-stat "$PWD") || user=root
- id -u "$user" >/dev/null 2>&1 || user=root
-
- [ "$user" = root ] ||
- log "Dropping permissions to $user for pull"
-
- user=$user as_root rsync -acvzzC --include=core --delete "$remote/" "$PWD"
- )
- fi
- else
- log "$repo" " "
- printf '%s\n' "Not a remote repository, skipping."
- fi
- done
-
- run_hook post-fetch
-}
-
-pkg_updates(){
- # Check all installed packages for updates. So long as the installed
- # version and the version in the repositories differ, it's considered
- # an update.
- [ "$CPT_FETCH" = 0 ] || pkg_fetch
-
- log "Checking for new package versions"
-
- set +f
-
- for pkg in "$sys_db/"*; do
- pkg_name=${pkg##*/}
-
- # Read version and release information from the installed packages
- # and repository.
- read -r db_ver db_rel < "$pkg/version"
- read -r re_ver re_rel < "$(pkg_find "$pkg_name")/version"
-
- # Compare installed packages to repository packages.
- [ "$db_ver-$db_rel" != "$re_ver-$re_rel" ] && {
- printf '%s\n' "$pkg_name $db_ver-$db_rel ==> $re_ver-$re_rel"
- outdated="$outdated$pkg_name "
- }
- done
-
- set -f
-
- # If the download option is specified only download the outdated packages
- # and exit.
- [ "$download_only" = 1 ] && {
- log "Only sources for the packages will be acquired"
- prompt || exit 0
-
- for pkg in $outdated; do
- pkg_sources "$pkg"
- done
-
- exit 0
- }
-
- contains "$outdated" cpt && {
- log "Detected package manager update"
- log "The package manager will be updated first"
-
- prompt || exit 0
-
- pkg_build cpt
- cpt-install cpt
-
- log "Updated the package manager"
- log "Re-run 'cpt update' to update your system"
-
- exit 0
- }
-
- [ "$outdated" ] || {
- log "Everything is up to date"
- return
- }
-
- log "Packages to update: ${outdated% }"
-
- # Tell 'pkg_build' to always prompt before build.
- pkg_update=1
-
- # Build all packages requiring an update.
- # See [1] at top of script.
- # shellcheck disable=2046,2086
- {
- pkg_order $outdated
- pkg_build $order
- }
-
- log "Updated all packages"
-}
-
-pkg_clean() {
- # Clean up on exit or error. This removes everything related
- # to the build.
- [ "$CPT_DEBUG" != 1 ] || return
-
- # Block 'Ctrl+C' while cache is being cleaned.
- trap '' INT
-
- # Remove temporary items.
- rm -rf -- "$mak_dir" "$pkg_dir" "$tar_dir" \
- "$CPT_TMPDIR/$pid-c" "$CPT_TMPDIR/$pid-m"
-}
-
-main() {
- set -ef
-
- # Die here if the user has no set CPT_PATH. This is a rare occurance
- # as the environment variable should always be defined.
- [ "$CPT_PATH" ] || die "\$CPT_PATH needs to be set"
-
- # Set the location to the repository and package database.
- pkg_db=var/db/cpt/installed
-
- # The PID of the current shell process is used to isolate directories
- # to each specific CPT instance. This allows multiple package manager
- # instances to be run at once. Store the value in another variable so
- # that it doesn't change beneath us.
- pid=${CPT_PID:-$$}
-
- # Force the C locale to speed up things like 'grep' which disable unicode
- # etc when this is set. We don't need unicode and a speed up is always
- # welcome.
- export LC_ALL=C LANG=C
-
- # Catch errors and ensure that build files and directories are cleaned
- # up before we die. This occurs on 'Ctrl+C' as well as success and error.
- trap pkg_clean EXIT INT
-
- # Prefer GNU grep if installed as it is much much faster than busybox's
- # implementation. Very much worth it if you value performance over
- # POSIX correctness (grep quoted to avoid shellcheck false-positive).
- grep=$(command -v ggrep) || grep='grep'
-
- # Prefer libarchive tar or GNU tar if installed as they are much
- # much faster than busybox's implementation. Very much worth it if
- # you value performance.
- tar=$(command -v bsdtar || command -v gtar) || tar=tar
-
- # Figure out which 'sudo' command to use based on the user's choice or
- # what is available on the system.
- su=${CPT_SU:-$(command -v sudo || command -v doas)} || su=su
-
- # Store the date and time of script invocation to be used as the name
- # of the log files the package manager creates uring builds.
- time=$(date '+%Y-%m-%d-%H:%M')
-
- # Make note of the user's current ID to do root checks later on.
- # This is used enough to warrant a place here.
- uid=$(id -u)
-
- # Make sure that the CPT_ROOT doesn't end with a '/'. This might
- # break some operations.
- [ -z "$CPT_ROOT" ] || [ "${CPT_ROOT##*/}" ] || {
- warn "Your CPT_ROOT variable shouldn't end with '/'"
- CPT_ROOT=${CPT_ROOT%/}
- }
-
- # Define an optional sys_arch variable in order to provide
- # information to build files with architectural information.
- sys_arch=$(uname -m 2>/dev/null) ||:
-
- # Define this variable but don't create its directory structure from
- # the get go. It will be created as needed by package installation.
- sys_db=$CPT_ROOT/$pkg_db
-
- # This allows for automatic setup of a CPT chroot and will
- # do nothing on a normal system.
- mkdir -p "$CPT_ROOT/" 2>/dev/null ||:
-
- # Set a value for CPT_COMPRESS if it isn't set.
- : "${CPT_COMPRESS:=gz}"
-
- # A temporary directory can be specified apart from the cache
- # directory in order to build in a user specified directory.
- # /tmp could be used in order to build on ram, useful on SSDs.
- # The user can specify CPT_TMPDIR for this.
- #
- # Create the required temporary directories and set the variables
- # which point to them.
- mkdir -p "${cac_dir:=${CPT_CACHE:=${XDG_CACHE_HOME:-$HOME/.cache}/cpt}}" \
- "${CPT_TMPDIR:=$cac_dir}" \
- "${mak_dir:=$CPT_TMPDIR/build-$pid}" \
- "${pkg_dir:=$CPT_TMPDIR/pkg-$pid}" \
- "${tar_dir:=$CPT_TMPDIR/extract-$pid}" \
- "${src_dir:=$cac_dir/sources}" \
- "${log_dir:=$cac_dir/logs}" \
- "${bin_dir:=$cac_dir/bin}"
-
- # Disable color escape sequences if running in a subshell.
- # This behaviour can be changed by adding a CPT_COLOR
- # variable to the environment. If it is set to 1 it will
- # always enable color escapes, and if set to 0 it will
- # always disable color escapes.
- if [ "$CPT_COLOR" = 1 ]; then color=1
- elif [ "$CPT_COLOR" = 0 ] || ! [ -t 1 ]; then
- log() { printf '%s %s %s\n' "${3:-->}" "$1" "$2" >&2 ;}
- else color=1
- fi
-
-}
-
-main "$@"