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-rwxr-xr-xshare/aux/cases/cp_all/aux/ci/git-post-receive.sh186
-rwxr-xr-xshare/aux/cases/cp_all/aux/ci/git-pre-receive.sh14
-rwxr-xr-xshare/aux/cases/cp_all/aux/ci/report.sh248
-rw-r--r--share/aux/cases/cp_all/aux/domain.txt1
-rw-r--r--share/aux/cases/cp_all/aux/lib.sh37
-rw-r--r--share/aux/cases/cp_empty/COPYING661
-rw-r--r--share/aux/cases/cp_empty/aux/.gitignore3
-rwxr-xr-xshare/aux/cases/cp_if/aux/po4a-cfg.sh85
8 files changed, 1235 insertions, 0 deletions
diff --git a/share/aux/cases/cp_all/aux/ci/git-post-receive.sh b/share/aux/cases/cp_all/aux/ci/git-post-receive.sh
new file mode 100755
index 0000000..76adccf
--- /dev/null
+++ b/share/aux/cases/cp_all/aux/ci/git-post-receive.sh
@@ -0,0 +1,186 @@
+#!/bin/sh
+# shellcheck source=/dev/null disable=2317
+. /etc/rc
+set -eu
+
+
+# shellcheck disable=2034
+read -r _oldrev SHA REFNAME
+
+if [ "$SHA" = '0000000000000000000000000000000000000000' ]; then
+ exit
+fi
+
+
+SKIP_DEPLOY=false
+for n in $(seq 0 $((GIT_PUSH_OPTION_COUNT - 1))); do
+ opt="$(eval "printf '%s' \"\$GIT_PUSH_OPTION_$n\"")"
+ case "$opt" in
+ ci.skip)
+ cat <<-EOF
+
+ "$opt" option detected, not running CI.
+
+ EOF
+ exit
+ ;;
+ deploy.skip)
+ SKIP_DEPLOY=true
+ ;;
+ *)
+ ;;
+ esac
+done
+
+
+epoch() {
+ awk 'BEGIN { srand(); print(srand()); }'
+}
+
+now() {
+ date '+%Y-%m-%dT%H:%M:%S%:z'
+}
+
+NAME="$(basename "$PWD" .git)"
+LOGS_DIR=/var/log/ci/"$NAME"/
+HTML_OUTDIR="/srv/www/s/$NAME"
+TIMESTAMP="$(now)"
+FILENAME="$TIMESTAMP-$SHA.log"
+LOGFILE="$LOGS_DIR/$FILENAME"
+mkdir -p "$LOGS_DIR"
+
+
+END_MARKER='\033[0m'
+LIGHT_BLUE_B='\033[1;36m'
+YELLOW='\033[1;33m'
+
+blue() {
+ printf "${LIGHT_BLUE_B}%s${END_MARKER}" "$1"
+}
+
+yellow() {
+ printf "${YELLOW}%s${END_MARKER}" "$1"
+}
+
+info() {
+ sed "s|^\(.\)|$(blue 'CI'): \1|"
+}
+
+
+uuid() {
+ od -xN20 /dev/urandom |
+ head -n1 |
+ awk '{OFS="-"; print $2$3,$4,$5,$6,$7$8$9}'
+}
+
+tmpname() {
+ printf '%s/uuid-tmpname with spaces.%s' "${TMPDIR:-/tmp}" "$(uuid)"
+}
+
+mkdtemp() {
+ name="$(tmpname)"
+ mkdir -- "$name"
+ printf '%s' "$name"
+}
+
+
+{
+ cat <<-EOF | info
+ Starting CI job at: $(now)
+ EOF
+ START="$(epoch)"
+
+ duration() {
+ if [ "$RUN_DURATION" -gt 60 ]; then
+ cat <<-EOF
+ $(yellow 'WARNING'): run took more than 1 minute! ($RUN_DURATION seconds)
+ EOF
+ else
+ cat <<-EOF
+ Run took $RUN_DURATION seconds.
+ EOF
+ fi
+ }
+
+ finish() {
+ STATUS="$?"
+ END="$(epoch)"
+ RUN_DURATION=$((END - START))
+ cat <<-EOF | info
+ Finishing CI job at: $(now)
+ Exit status was $STATUS
+ Re-run with:
+ \$ $CMD
+ $(duration)
+ EOF
+
+ NOTE="$(
+ cat <<-EOF
+ See CI logs with:
+ git notes --ref=refs/notes/ci-logs show $SHA
+ git notes --ref=refs/notes/ci-data show $SHA
+
+ Exit status: $STATUS
+ Duration: $RUN_DURATION
+ EOF
+ )"
+ git notes --ref=refs/notes/ci-data add -f -m "$(
+ cat <<-EOF
+ status $STATUS
+ sha $SHA
+ filename $FILENAME
+ duration $RUN_DURATION
+ timestamp $TIMESTAMP
+ to-prod $TO_PROD
+ refname $REFNAME
+ EOF
+ )" "$SHA"
+ git notes --ref=refs/notes/ci-logs add -f -F "$LOGFILE" "$SHA"
+ git notes add -f -m "$NOTE" "$SHA"
+
+ {
+ printf 'Git CI HTML report for %s (%s) started.\n' "$NAME" "$SHA" >&2
+ DIR="$(mkdtemp)"
+ REMOTE="$PWD"
+ cd "$DIR"
+ {
+ git clone "$REMOTE" .
+ git fetch origin 'refs/notes/*:refs/notes/*'
+ } 1>/dev/null 2>&1
+ sh aux/ci/report.sh -n "$NAME" -o public-ci
+ sudo -u deployer mkdir -p "$HTML_OUTDIR"/ci/
+ sudo -u deployer rsync \
+ --chmod=D775,F664 \
+ --chown=deployer:deployer \
+ --delete \
+ -a \
+ public-ci/ "$HTML_OUTDIR"/ci/
+ rm -rf "$DIR"
+ printf 'Git CI HTML report for %s (%s) finished.\n' "$NAME" "$SHA" >&2
+ } 2>&1 | logger -i -p local0.warn -t git-ci 1>/dev/null 2>&1 &
+ }
+ trap finish EXIT
+
+ unset GIT_DIR
+
+ if [ "$REFNAME" = 'refs/heads/main' ] && [ "$SKIP_DEPLOY" = false ]; then
+ cat <<-EOF | info
+ In branch "main", running deploy for $SHA.
+ EOF
+ TO_PROD=true
+ CMD="sudo cicd $NAME $SHA"
+ else
+ if [ "$SKIP_DEPLOY" = true ]; then
+ cat <<-EOF | info
+ "deploy.skip" option detected, skipping deploy for $SHA.
+ EOF
+ else
+ cat <<-EOF | info
+ Not on branch "main", skipping deploy for $SHA.
+ EOF
+ fi
+ TO_PROD=false
+ CMD="sudo cicd -n $NAME $SHA"
+ fi
+ $CMD
+} 2>&1 | ts -s '%.s' | tee "$LOGFILE"
diff --git a/share/aux/cases/cp_all/aux/ci/git-pre-receive.sh b/share/aux/cases/cp_all/aux/ci/git-pre-receive.sh
new file mode 100755
index 0000000..199d06e
--- /dev/null
+++ b/share/aux/cases/cp_all/aux/ci/git-pre-receive.sh
@@ -0,0 +1,14 @@
+#!/bin/sh
+set -eu
+
+read -r _oldrev SHA _refname
+unset GIT_DIR
+
+if [ "$SHA" = '0000000000000000000000000000000000000000' ]; then
+ exit
+fi
+
+printf 'Upgrading post-receive hook...' >&2
+git show "$SHA":aux/ci/git-post-receive.sh > hooks/post-receive
+chmod +x hooks/post-receive
+printf 'done.\n' >&2
diff --git a/share/aux/cases/cp_all/aux/ci/report.sh b/share/aux/cases/cp_all/aux/ci/report.sh
new file mode 100755
index 0000000..2f36ad5
--- /dev/null
+++ b/share/aux/cases/cp_all/aux/ci/report.sh
@@ -0,0 +1,248 @@
+#!/bin/sh
+set -eu
+
+usage() {
+ cat <<-'EOF'
+ Usage:
+ aux/ci/report.sh -n NAME -o OUTDIR
+ aux/ci/report.sh -h
+ EOF
+}
+
+help() {
+ cat <<-'EOF'
+
+
+ Options:
+ -n NAME the name of the project
+ -o OUTDIR the directory where to place the generated files
+ -h, --help show this message
+
+
+ Gather data from Git Notes, and generate an HTML report on CI runs.
+
+ Two refs with notes are expected:
+ 1. refs/notes/ci-data: contains metadata abount the CI runs,
+ with timestamps, filenames and exit status;
+ 2. refs/notes/ci-logs: contains the content of the log.
+
+ When reconstructing the CI run, the $FILENAME present in
+ the refs/notes/ci-data ref names the file, and its content comes
+ from refs/notes/ci-logs.
+
+ On a CI run that generated the numbers from 1 to 10, for a file named
+ 'my-ci-run-2020-01-01-deadbeef.log' that exited successfully, the
+ expected output on the target directory "public" is:
+
+ $ tree public/
+ public/
+ index.html
+ data/
+ my-ci-run-2020-01-01-deadbeef.log
+ ...
+ logs/
+ my-ci-run-2020-01-01-deadbeef.log
+ ...
+
+ $ cat public/data/my-ci-run-2020-01-01-deadbeef.log
+ 0 deadbeef my-ci-run-2020-01-01-deadbeef.log
+
+ $ cat public/logs/my-ci-run-2020-01-01-deadbeef.log
+ 1
+ 2
+ 3
+ 4
+ 5
+ 6
+ 7
+ 8
+ 9
+ 10
+
+ The generated 'index.html' is a webpage with the list of all known
+ CI runs, their status, a link to the commit and a link to the
+ log file.
+
+ To enable fetching these refs by default, do so in the git config:
+
+ $ git config --add remote.origin.fetch '+refs/notes/*:refs/notes/*'
+
+
+ Examples:
+
+ Generate the report on the 'www' directory:
+
+ $ report -o www
+ EOF
+}
+
+
+for flag in "$@"; do
+ case "$flag" in
+ --)
+ break
+ ;;
+ --help)
+ usage
+ help
+ exit
+ ;;
+ *)
+ ;;
+ esac
+done
+
+while getopts 'n:o:h' flag; do
+ case "$flag" in
+ n)
+ NAME="$OPTARG"
+ ;;
+ o)
+ OUTDIR="$OPTARG"
+ ;;
+ h)
+ usage
+ help
+ exit
+ ;;
+ *)
+ exit 2
+ ;;
+ esac
+done
+shift $((OPTIND - 1))
+
+. aux/lib.sh
+
+eval "$(assert_arg "${NAME:-}" '-n NAME')"
+eval "$(assert_arg "${OUTDIR:-}" '-o OUTDIR')"
+
+
+esc() {
+ sed \
+ -e 's|&|\&amp;|g' \
+ -e 's|<|\&lt;|g' \
+ -e 's|>|\&gt;|g' \
+ -e 's|"|\&quot;|g' \
+ -e "s|'|\&#39;|g"
+}
+
+mkdir -p "$OUTDIR"
+cd "$OUTDIR"
+mkdir -p logs data
+
+for c in $(git notes list | cut -d' ' -f2); do
+ git notes --ref=refs/notes/ci-data show "$c" > data/FILENAME-tmp
+ FILENAME="$(grep '^filename ' data/FILENAME-tmp | cut -d' ' -f2-)"
+ mv data/FILENAME-tmp data/"$FILENAME"
+ git notes --ref=refs/notes/ci-logs show "$c" > logs/"$FILENAME"
+done
+
+{
+ cat <<-EOF
+ <!DOCTYPE html>
+ <head>
+ <meta charset="UTF-8" />
+ <meta name="viewport" content="width=device-width, initial-scale=1" />
+ <meta name="description" content="CI logs for $NAME" />
+ <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
+ <title>$NAME - CI logs</title>
+ <style>
+ body {
+ max-width: 800px;
+ margin: 0 auto;
+ }
+
+ code {
+ display: block;
+ margin: 1em 0em 3em 3em;
+ overflow: auto;
+ }
+
+ pre {
+ display: inline;
+ }
+
+ ol {
+ list-style-type: disc;
+ }
+
+ pre, code {
+ background-color: #ddd;
+ }
+
+ @media(prefers-color-scheme: dark) {
+ :root {
+ color: white;
+ background-color: black;
+ }
+
+ a {
+ color: hsl(211, 100%, 60%);
+ }
+
+ a:visited {
+ color: hsl(242, 100%, 80%);
+ }
+
+ pre, code {
+ background-color: #222;
+ }
+ }
+ </style>
+ </head>
+ <body>
+ <main>
+ <h1>
+ CI logs for
+ <a href="https://$DOMAIN/s/$NAME/">$NAME</a>
+ </h1>
+ <ol>
+ EOF
+
+
+ PASS='&#x2705;' # ✅
+ WARN='&#x1F40C;' # 🐌
+ FAIL='&#x274C;' # ❌
+ find data/ -type f | LANG=C.UTF-8 sort -r | while read -r f; do
+ STATUS="$( grep '^status ' "$f" | cut -d' ' -f2- | esc)"
+ SHA="$( grep '^sha ' "$f" | cut -d' ' -f2- | esc)"
+ FILENAME="$(grep '^filename ' "$f" | cut -d' ' -f2- | esc)"
+ DURATION="$(grep '^duration ' "$f" | cut -d' ' -f2- | cut -d'"' -f1 | esc)"
+ MESSAGE="$({
+ git log -1 --format=%B "$SHA" || {
+ git fetch origin "$SHA"
+ git log -1 --format=%B "$SHA"
+ }
+ } | esc)"
+
+ if [ "$STATUS" = 0 ]; then
+ if [ "$DURATION" -le 60 ]; then
+ STATUS_MARKER="$PASS"
+ else
+ STATUS_MARKER="$WARN"
+ fi
+ else
+ STATUS_MARKER="$FAIL"
+ fi
+
+ cat <<-EOF
+ <li id="$FILENAME">
+ <a href="#$FILENAME"><pre>#</pre></a>
+ $STATUS_MARKER - <pre>${DURATION:-?}s</pre>
+ <pre>(<a href="https://$DOMAIN/git/$NAME/commit/?id=$SHA">commit</a>)</pre>
+ <a href="logs/$FILENAME"><pre>$FILENAME</pre></a>
+ <pre>(<a href="data/$FILENAME">data</a>)</pre>
+ <br />
+ <code><pre>$MESSAGE</pre></code>
+ </li>
+ EOF
+ done
+
+ cat <<-EOF
+ </ol>
+ </main>
+ </body>
+ </html>
+ EOF
+} > index.html
diff --git a/share/aux/cases/cp_all/aux/domain.txt b/share/aux/cases/cp_all/aux/domain.txt
new file mode 100644
index 0000000..fd7ea0f
--- /dev/null
+++ b/share/aux/cases/cp_all/aux/domain.txt
@@ -0,0 +1 @@
+euandre.org
diff --git a/share/aux/cases/cp_all/aux/lib.sh b/share/aux/cases/cp_all/aux/lib.sh
new file mode 100644
index 0000000..93a37eb
--- /dev/null
+++ b/share/aux/cases/cp_all/aux/lib.sh
@@ -0,0 +1,37 @@
+#!/bin/sh
+
+DOMAIN="$(cat aux/domain.txt)"
+NAME="$(basename "$PWD")"
+export DOMAIN NAME
+
+assert_arg() {
+ if [ -z "$1" ]; then
+ printf 'Missing %s.\n\n' "$2" >&2
+ cat <<-'EOF'
+ usage >&2
+ exit 2
+ EOF
+ fi
+}
+
+uuid() {
+ od -xN20 /dev/urandom |
+ head -n1 |
+ awk '{OFS="-"; print $2$3,$4,$5,$6,$7$8$9}'
+}
+
+tmpname() {
+ printf '%s/uuid-tmpname-without-spaces.%s' "${TMPDIR:-/tmp}" "$(uuid)"
+}
+
+mkstemp() {
+ name="$(tmpname)"
+ touch -- "$name"
+ printf '%s' "$name"
+}
+
+mkdtemp() {
+ name="$(tmpname)"
+ mkdir -p -- "$name"
+ printf '%s' "$name"
+}
diff --git a/share/aux/cases/cp_empty/COPYING b/share/aux/cases/cp_empty/COPYING
new file mode 100644
index 0000000..be3f7b2
--- /dev/null
+++ b/share/aux/cases/cp_empty/COPYING
@@ -0,0 +1,661 @@
+ GNU AFFERO GENERAL PUBLIC LICENSE
+ Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The GNU Affero General Public License is a free, copyleft license for
+software and other kinds of works, specifically designed to ensure
+cooperation with the community in the case of network server software.
+
+ The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+our General Public Licenses are intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+ Developers that use our General Public Licenses protect your rights
+with two steps: (1) assert copyright on the software, and (2) offer
+you this License which gives you legal permission to copy, distribute
+and/or modify the software.
+
+ A secondary benefit of defending all users' freedom is that
+improvements made in alternate versions of the program, if they
+receive widespread use, become available for other developers to
+incorporate. Many developers of free software are heartened and
+encouraged by the resulting cooperation. However, in the case of
+software used on network servers, this result may fail to come about.
+The GNU General Public License permits making a modified version and
+letting the public access it on a server without ever releasing its
+source code to the public.
+
+ The GNU Affero General Public License is designed specifically to
+ensure that, in such cases, the modified source code becomes available
+to the community. It requires the operator of a network server to
+provide the source code of the modified version running there to the
+users of that server. Therefore, public use of a modified version, on
+a publicly accessible server, gives the public access to the source
+code of the modified version.
+
+ An older license, called the Affero General Public License and
+published by Affero, was designed to accomplish similar goals. This is
+a different license, not a version of the Affero GPL, but Affero has
+released a new version of the Affero GPL which permits relicensing under
+this license.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+ TERMS AND CONDITIONS
+
+ 0. Definitions.
+
+ "This License" refers to version 3 of the GNU Affero General Public License.
+
+ "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+ "The Program" refers to any copyrightable work licensed under this
+License. Each licensee is addressed as "you". "Licensees" and
+"recipients" may be individuals or organizations.
+
+ To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy. The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+ A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+ To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy. Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+ To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies. Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+ An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License. If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+ 1. Source Code.
+
+ The "source code" for a work means the preferred form of the work
+for making modifications to it. "Object code" means any non-source
+form of a work.
+
+ A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+ The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form. A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
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+ The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities. However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work. For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+ The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+ The Corresponding Source for a work in source code form is that
+same work.
+
+ 2. Basic Permissions.
+
+ All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met. This License explicitly affirms your unlimited
+permission to run the unmodified Program. The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work. This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+ You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force. You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright. Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+ Conveying under any other circumstances is permitted solely under
+the conditions stated below. Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+ 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+ No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+ When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+ 4. Conveying Verbatim Copies.
+
+ You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+ You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+ 5. Conveying Modified Source Versions.
+
+ You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+ a) The work must carry prominent notices stating that you modified
+ it, and giving a relevant date.
+
+ b) The work must carry prominent notices stating that it is
+ released under this License and any conditions added under section
+ 7. This requirement modifies the requirement in section 4 to
+ "keep intact all notices".
+
+ c) You must license the entire work, as a whole, under this
+ License to anyone who comes into possession of a copy. This
+ License will therefore apply, along with any applicable section 7
+ additional terms, to the whole of the work, and all its parts,
+ regardless of how they are packaged. This License gives no
+ permission to license the work in any other way, but it does not
+ invalidate such permission if you have separately received it.
+
+ d) If the work has interactive user interfaces, each must display
+ Appropriate Legal Notices; however, if the Program has interactive
+ interfaces that do not display Appropriate Legal Notices, your
+ work need not make them do so.
+
+ A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit. Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+ 6. Conveying Non-Source Forms.
+
+ You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
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+ a) Convey the object code in, or embodied in, a physical product
+ (including a physical distribution medium), accompanied by the
+ Corresponding Source fixed on a durable physical medium
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+ b) Convey the object code in, or embodied in, a physical product
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+ written offer, valid for at least three years and valid for as
+ long as you offer spare parts or customer support for that product
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+ copy of the Corresponding Source for all the software in the
+ product that is covered by this License, on a durable physical
+ medium customarily used for software interchange, for a price no
+ more than your reasonable cost of physically performing this
+ conveying of source, or (2) access to copy the
+ Corresponding Source from a network server at no charge.
+
+ c) Convey individual copies of the object code with a copy of the
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+
+ d) Convey the object code by offering access from a designated
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+
+ e) Convey the object code using peer-to-peer transmission, provided
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+ Source of the work are being offered to the general public at no
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+
+ A separable portion of the object code, whose source code is excluded
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+
+ A "User Product" is either (1) a "consumer product", which means any
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+ "Installation Information" for a User Product means any methods,
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+unpacking, reading or copying.
+
+ 7. Additional Terms.
+
+ "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law. If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+ When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it. (Additional permissions may be written to require their own
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+ Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
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+ terms of sections 15 and 16 of this License; or
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+ c) Prohibiting misrepresentation of the origin of that material, or
+ requiring that modified versions of such material be marked in
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+ d) Limiting the use for publicity purposes of names of licensors or
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+
+ All other non-permissive additional terms are considered "further
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+received it, or any part of it, contains a notice stating that it is
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+restriction, you may remove that term. If a license document contains
+a further restriction but permits relicensing or conveying under this
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+of that license document, provided that the further restriction does
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+
+ Additional terms, permissive or non-permissive, may be stated in the
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+ 8. Termination.
+
+ You may not propagate or modify a covered work except as expressly
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+
+ However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
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+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+ Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+ Termination of your rights under this section does not terminate the
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+this License. If your rights have been terminated and not permanently
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+
+ 9. Acceptance Not Required for Having Copies.
+
+ You are not required to accept this License in order to receive or
+run a copy of the Program. Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance. However,
+nothing other than this License grants you permission to propagate or
+modify any covered work. These actions infringe copyright if you do
+not accept this License. Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+ 10. Automatic Licensing of Downstream Recipients.
+
+ Each time you convey a covered work, the recipient automatically
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+propagate that work, subject to this License. You are not responsible
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+
+ An "entity transaction" is a transaction transferring control of an
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+organization, or merging organizations. If propagation of a covered
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+ You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License. For example, you may
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+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+ 11. Patents.
+
+ A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based. The
+work thus licensed is called the contributor's "contributor version".
+
+ A contributor's "essential patent claims" are all patent claims
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+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version. For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+ Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
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+propagate the contents of its contributor version.
+
+ In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement). To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+ If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+ If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+ A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License. You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
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+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+ Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+ 12. No Surrender of Others' Freedom.
+
+ If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all. For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+ 13. Remote Network Interaction; Use with the GNU General Public License.
+
+ Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
+interacting with it remotely through a computer network (if your version
+supports such interaction) an opportunity to receive the Corresponding
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+from a network server at no charge, through some standard or customary
+means of facilitating copying of software. This Corresponding Source
+shall include the Corresponding Source for any work covered by version 3
+of the GNU General Public License that is incorporated pursuant to the
+following paragraph.
+
+ Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+ 14. Revised Versions of this License.
+
+ The Free Software Foundation may publish revised and/or new versions of
+the GNU Affero General Public License from time to time. Such new versions
+will be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+ Each version is given a distinguishing version number. If the
+Program specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation. If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+ If the Program specifies that a proxy can decide which future
+versions of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+ Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+ 15. Disclaimer of Warranty.
+
+ THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as published by
+ the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source. For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code. There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<https://www.gnu.org/licenses/>.
diff --git a/share/aux/cases/cp_empty/aux/.gitignore b/share/aux/cases/cp_empty/aux/.gitignore
new file mode 100644
index 0000000..5588aca
--- /dev/null
+++ b/share/aux/cases/cp_empty/aux/.gitignore
@@ -0,0 +1,3 @@
+/generated.mk
+/preamble-md
+/checks/manpages/*.0
diff --git a/share/aux/cases/cp_if/aux/po4a-cfg.sh b/share/aux/cases/cp_if/aux/po4a-cfg.sh
new file mode 100755
index 0000000..11e51aa
--- /dev/null
+++ b/share/aux/cases/cp_if/aux/po4a-cfg.sh
@@ -0,0 +1,85 @@
+#!/bin/sh
+set -eu
+
+usage() {
+ cat <<-'EOF'
+ FIXME
+ EOF
+}
+
+help() {
+ cat <<-'EOF'
+ FIXME
+ EOF
+}
+
+
+for flag in "$@"; do
+ case "$flag" in
+ --)
+ break
+ ;;
+ --help)
+ usage
+ help
+ exit
+ ;;
+ *)
+ ;;
+ esac
+done
+
+while getopts 'f:L:h' flag; do
+ case "$flag" in
+ f)
+ FILES="$OPTARG"
+ ;;
+ h)
+ usage
+ help
+ exit
+ ;;
+ *)
+ usage >&2
+ exit 2
+ ;;
+ esac
+done
+shift $((OPTIND - 1))
+
+. aux/lib.sh
+
+
+files() {
+ printf '%s' "${FILES:-}" | tr ' ' '\n' | grep .
+}
+
+guess_type() {
+ case "$1" in
+ *.md)
+ echo text
+ ;;
+ *.[1-9]*.in)
+ echo man
+ ;;
+ *)
+ echo text
+ ;;
+ esac
+}
+
+
+cat <<-'EOF'
+ [options] --keep 0 --master-charset UTF-8 --localized-charset UTF-8
+
+ [po_directory] po
+
+EOF
+
+files | while read -r file; do
+ TYPE="$(guess_type "$file")"
+ # shellcheck disable=2016
+ VAR_FILE="$(printf '%s' "$file" | sed 's|\.en\.|.$lang.|')"
+ # shellcheck disable=2016
+ printf '[type: %s] %s $lang:%s\n' "$TYPE" "$file" "$VAR_FILE"
+done