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repository.eselect.in
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repository.eselect.in
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# Copyright (c) 2017-2022 Michał Górny
# 2-clause BSD license
inherit config
DESCRIPTION="Manage repository list in repos.conf"
MAINTAINER="Michał Górny <mgorny@gentoo.org>"
VERSION=14
### directories
CACHEDIR=/tmp
SYSCONFDIR=/etc
SHAREDSTATEDIR=/var
HELPER="$(dirname "$(realpath "${BASH_SOURCE[0]}")")/eselect-repo-helper"
CONFIG="$(dirname "$(realpath "${BASH_SOURCE[0]}")")/eselect-repo.conf"
### helper functions
# Load all the configuration variables.
get_config() {
local v vars=(
REPOS_CONF REPOS_BASE
REMOTE_LIST_URI REMOTE_LIST_CACHEDIR REMOTE_LIST_REFRESH
)
for v in "${vars[@]}"; do
declare -g "${v}=$(load_config "${CONFIG}" "${v}")"
[[ -n ${!v} ]] ||
die "${v} not set by the configuration file (${CONFIG})"
done
if [[ ! -e ${REPOS_CONF} ]]; then
mkdir -p "${REPOS_CONF}" || die
fi
# try to create it if necessary
if [[ ! -d ${REMOTE_LIST_CACHEDIR} ]]; then
mkdir -p "${REMOTE_LIST_CACHEDIR}" || die
fi
# it always has to end with /repositories.xml, so we only make
# the directory configurable
REMOTE_LIST_CACHE=${REMOTE_LIST_CACHEDIR}/repositories.xml
}
update_cache() {
local refts
if [[ -f ${REMOTE_LIST_CACHE} ]]; then
refts=$(( $(date '+%s') - REMOTE_LIST_REFRESH ))
[[ $(find "${REMOTE_LIST_CACHE}" -newermt "@${refts}") ]] && return
fi
wget -N -P "${REMOTE_LIST_CACHEDIR}" "${REMOTE_LIST_URI}" ||
die -q "unable to fetch repositories.xml"
# we need to touch it since:
# a. wget defaults to using server timestamp,
# b. wget does not update the timestamp if the file did not change
# on the server.
# (If-Modified-Since will work with the current mtime anyway, unless
# user's clock has drifted seriously)
touch "${REMOTE_LIST_CACHE}"
}
run_helper() {
"${HELPER}" \
--repos-conf "${REPOS_CONF}" \
--repositories-xml "${REMOTE_LIST_CACHE}" \
"${@}" ||
die -q "helper failed to run"
}
# Convert numerical repository indices in ${@}. Store resulting
# repository list as repos=() array.
convert_indices() {
local have_numerical= r
for r; do
if is_number "${r}"; then
have_numerical=1
fi
done
if [[ ! ${have_numerical} ]]; then
repos=( "${@}" )
return
fi
[[ -f ${REMOTE_LIST_CACHE} ]] ||
die -q "unable to use numerical indices before calling 'list'"
# shift indexes to ease referencing
local all_repos=( '' )
local name state
while read name state url; do
all_repos+=( "${name}" )
done < <(run_helper list)
repos=()
for r; do
if is_number "${r}"; then
repos+=( "${all_repos[r]}" )
else
repos+=( "${r}" )
fi
done
}
# Add the specified repository to repos.conf file.
# ${1} specifies the repository name.
# ${2} specifies the lines to append.
add_to_repos_conf() {
local -x repository=${1}
local new_lines=${2}
local f
# if repos.conf is a directory, create a dedicated subfile
if [[ -d ${REPOS_CONF} ]]; then
f=$(load_config "${CONFIG}" "REPOS_CONF_SUBFILE")
[[ -n ${f} ]] ||
die "REPOS_CONF_SUBFILE not set by the configuration file (${CONFIG})"
else
f=${REPOS_CONF}
fi
# note: the file must be non-empty for sed to work
if [[ ! -s ${f} ]]; then
echo "# created by eselect-repo" > "${f}" || die
fi
echo "Adding ${repository} to ${f} ..."
sed -i -e "\$ a\\
${new_lines}" "${f}" || die
}
# Remove the specified repositories (${@}) from repos.conf file.
remove_from_repos_conf() {
local expr='\('
for r; do
expr+="${r}\|"
done
expr="${expr%|})"
local files=()
if [[ -d ${REPOS_CONF} ]]; then
# filter only to files containing the repos
while IFS= read -r -d '' f; do
[[ ${f} == *~ ]] && continue
files+=( "${f}" )
done < <(grep -Z -l "^\s*\[${expr}\]\s*\$" "${REPOS_CONF}"/*)
else
files=( "${REPOS_CONF}" )
fi
echo "Updating repos.conf ..."
sed -n -i~ -e "/^\s*\[${expr}\]\s*\$/{b loop}; p; b;
:loop {n;/^\s*[^\[]/b loop};" "${files[@]}" || die
}
### add action
## {{{
describe_add() {
echo "Add a custom repository"
}
describe_add_parameters() {
echo "<name> <sync-type> <sync-uri>"
}
describe_add_options() {
echo "<name> : Name of the repository to add"
echo "<sync-type> : Syncer to use (e.g. git, rsync, svn...)"
echo "<sync-uri> : Sync URI"
}
do_add() {
[[ ${#} -eq 3 ]] || die -q "incorrect parameters to add"
local name=${1}
local sync_type=${2}
local sync_uri=${3}
get_config
update_cache
local r state arg1 arg2
while read r state arg1 arg2; do
case ${state} in
enabled)
die -q "error: ${r}: repository already enabled, in ${arg1}"
;;
esac
done < <(run_helper remote-metadata "${name}")
# note: escape all the backslashes for sed, and add command
# continuations
local new_lines="\\
[${name//\\/\\\\}]\\
location = ${REPOS_BASE//\\/\\\\}/${name//\\/\\\\}\\
sync-type = ${sync_type//\\/\\\\}\\
sync-uri = ${sync_uri//\\/\\\\}"
add_to_repos_conf "${name}" "${new_lines}"
echo "Repository ${name} added"
}
## }}}
### create action
## {{{
describe_create() {
echo "Create a local repository"
}
describe_create_parameters() {
echo "<name> [<path>]"
}
describe_create_options() {
echo "<name> : Name of the new repository"
echo "<path> : Path to use (default: \${REPOS_BASE}/<name>)"
}
do_create() {
[[ ${#} -eq 1 || ${#} -eq 2 ]] || die -q "incorrect parameters to create"
get_config
update_cache
local name=${1}
local path=${2:-${REPOS_BASE}/${name}}
local r state arg1 arg2
while read r state arg1 arg2; do
case ${state} in
enabled)
die -q "error: ${r}: repository by that name already exists, in ${arg1}"
;;
esac
done < <(run_helper remote-metadata "${name}")
# create the repository boilerplate
mkdir -p "${path}"/{metadata,profiles} || die
echo "${name}" > "${path}"/profiles/repo_name || die
# PMS says PMs must default to EAPI 0 if unset
echo "8" > "${path}"/profiles/eapi || die
cat > "${path}"/metadata/layout.conf <<-EOF || die
masters = gentoo
thin-manifests = true
sign-manifests = false
EOF
# note: escape all the backslashes for sed, and add command
# continuations
local new_lines="\\
[${name//\\/\\\\}]\\
location = ${path//\\/\\\\}"
add_to_repos_conf "${name}" "${new_lines}"
echo "Repository ${name} created and added"
}
## }}}
### enable action
## {{{
describe_enable() {
echo "Enable the specified repositories from the list"
}
describe_enable_parameters() {
echo "(<name>|<index>)..."
}
describe_enable_options() {
echo "<name>... : Names of repositories to enable"
echo "<index>... : Numeric index of the repository (from 'list' command)"
}
do_enable() {
[[ ${#} -gt 0 ]] || die -q "no repositories specified"
get_config
convert_indices "${@}"
update_cache
local r state arg1 arg2 added=()
while read r state arg1 arg2; do
case ${state} in
enabled)
echo "error: ${r}: repository already enabled, in ${arg1}"
continue
;;
not-exist)
echo "error: ${r}: repository not in repositories.xml"
continue
;;
unsupported)
echo "error: ${r}: repository source VCS not supported"
continue
;;
esac
added+=( "${r}" )
# note: escape all the backslashes for sed, and add command
# continuations
local new_lines="\\${new_lines:+
\\}
[${r//\\/\\\\}]\\
location = ${REPOS_BASE//\\/\\\\}/${r//\\/\\\\}\\
sync-type = ${arg1//\\/\\\\}\\
sync-uri = ${arg2//\\/\\\\}"
add_to_repos_conf "${r}" "${new_lines}"
done < <(run_helper remote-metadata "${repos[@]}")
if [[ ${added[@]} ]]; then
echo "${#added[@]} repositories enabled"
fi
}
## }}}
### disable action
## {{{
describe_disable() {
echo "Disable specified repositories without removing their contents"
}
describe_disable_parameters() {
echo "[-f] (<name>|<index>)..."
}
describe_disable_options() {
echo "-f : Force potentially dangerous removals"
echo "<name>... : Names of repositories to disable"
echo "<index>... : Numeric index of the repository (from 'list' command)"
}
do_disable() {
local force
if [[ ${1} == -f ]]; then
force=1
shift
fi
[[ ${#} -gt 0 ]] || die -q "no repositories specified"
get_config
convert_indices "${@}"
update_cache
local r state path removed=()
while read r state path; do
case ${state} in
not-exist)
echo "error: ${r}: repository not in repos.conf"
continue
;;
local)
if [[ ! ${force} ]]; then
echo "error: ${r}: repository not in remote list, pass -f to force disabling"
continue
fi
;;
no-sync-uri)
if [[ ! ${force} ]]; then
echo "error: ${r}: repository has no sync-uri, pass -f to force disabling"
continue
fi
;;
esac
removed+=( "${r}" )
done < <(run_helper metadata "${repos[@]}")
if [[ ${removed[@]} ]]; then
remove_from_repos_conf "${removed[@]}"
echo "${#removed[@]} repositories disabled"
fi
}
## }}}
### remove action
## {{{
describe_remove() {
echo "Remove installed repositories along with their contents"
}
describe_remove_parameters() {
echo "[-f] (<name>|<index>)..."
}
describe_remove_options() {
echo "-f : Force potentially dangerous removals"
echo "<name>... : Names of repositories to remove"
echo "<index>... : Numeric index of the repository (from 'list' command)"
}
do_remove() {
local force
if [[ ${1} == -f ]]; then
force=1
shift
fi
[[ ${#} -gt 0 ]] || die -q "no repositories specified"
get_config
convert_indices "${@}"
update_cache
local r state path removed=()
while read r state path; do
case ${state} in
not-exist)
echo "error: ${r}: repository not in repos.conf"
continue
;;
local)
if [[ ! ${force} ]]; then
echo "error: ${r}: repository not in remote list, pass -f to force removal"
continue
fi
;;
no-sync-uri)
if [[ ! ${force} ]]; then
echo "error: ${r}: repository has no sync-uri, pass -f to force removal"
continue
fi
;;
esac
# if path is empty, we still want to remove the config entry
if [[ ${path} ]]; then
echo "Removing ${path} ..."
rm -r -f "${path}"
fi
removed+=( "${r}" )
done < <(run_helper metadata "${repos[@]}")
if [[ ${removed[@]} ]]; then
remove_from_repos_conf "${removed[@]}"
echo "${#removed[@]} repositories removed"
fi
}
## }}}
### list action
## {{{
describe_list() {
echo "List all repositories"
}
describe_list_parameters() {
echo "[-i]"
}
describe_list_options() {
echo "-i : Only list installed"
}
do_list() {
local only_installed
if [[ ${1} == -i ]]; then
only_installed=1
shift
fi
get_config
update_cache
write_list_start "Available repositories:"
local name state i=1
while read name state url; do
case ${state} in
enabled)
name=$(highlight_marker "${name}");;
need-update)
if ! is_output_mode brief; then
name+=" $(highlight_warning '#')"
fi
;;
local)
name+=" $(highlight_warning '@')";;
*)
if [[ -n ${only_installed} ]]; then
(( i++ ))
continue
fi
;;
esac
write_numbered_list_entry "$(( i++ ))" \
"${name}${url:+ $(highlight "(${url})")}"
done < <(run_helper list)
}
## }}}
# vim: ts=4 sw=4 noet fdm=marker