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#!/usr/bin/env bash
# Assemble remote man pages for darwin or windows from markdown files
set -e
PLATFORM=$1 ## linux, windows or darwin
TARGET=${2} ## where to output files
SOURCES=${@:3} ## directories to find markdown files
# Overridden for testing. Native podman-remote binary expected filepaths
if [[ -z "$PODMAN" ]]; then
case $(env -i HOME=$HOME PATH=$PATH go env GOOS) in
windows)
PODMAN=bin/windows/podman.exe ;;
darwin)
PODMAN=bin/darwin/podman ;;
*) # Assume "linux"
PODMAN=bin/podman-remote ;;
esac
fi
function usage() {
echo >&2 "$0 PLATFORM TARGET SOURCES..."
echo >&2 "PLATFORM: Is either linux, darwin or windows."
echo >&2 "TARGET: Is the directory where files will be staged. eg, docs/build/remote/linux"
echo >&2 "SOURCES: Are the directories of source files. eg, docs/source/markdown"
}
function fail() {
echo >&2 -e "$(dirname $0): $@\n"
exit 1
}
case $PLATFORM in
darwin|linux)
PUBLISHER=man_fn
ext=1
;;
windows)
PUBLISHER=html_fn
ext=1.md
;;
-help)
usage
exit 0
;;
*) fail '"linux", "darwin" and "windows" are the only supported platforms.' ;;
esac
if [[ -z $TARGET ]]; then
fail 'TARGET directory is required'
fi
if [[ -z $SOURCES ]]; then
fail 'At least one SOURCE directory is required'
fi
if [[ ! -x $PODMAN ]]; then
fail "$PODMAN does not exist"
fi
## man_fn copies the man page or link to flattened directory
function man_fn() {
local page=$1
local file=$(basename $page)
local dir=$(dirname $page)
if [[ ! -f $page ]]; then
page=$dir/links/${file%.*}.$ext
fi
install $page $TARGET/${file%%.*}.1
}
## html_fn converts the markdown page or link to HTML
function html_fn() {
local markdown=$1
local file=$(basename $markdown)
local dir=$(dirname $markdown)
if [[ ! -f $markdown ]]; then
local link=$(sed -e 's?.so man1/\(.*\)?\1?' <$dir/links/${file%.md})
markdown=$dir/$link.md
fi
pandoc --ascii --standalone \
--lua-filter=docs/links-to-html.lua \
--lua-filter=docs/use-pagetitle.lua \
-o $TARGET/${file%%.*}.html $markdown
}
# Run 'podman help' (possibly against a subcommand, e.g. 'podman help image')
# and return a list of each first word under 'Available Commands', that is,
# the command name but not its description.
function podman_commands() {
$PODMAN help "$@" |\
awk '/^Available Commands:/{ok=1;next}/^Options:/{ok=0}ok { print $1 }' |\
grep .
}
function podman_all_commands(){
for cmd in $(podman_commands "$@") ; do
echo $@ $cmd
podman_all_commands $@ $cmd
done
}
## pub_pages finds and publishes the remote manual pages
function pub_pages() {
local source=$1
local publisher=$2
for f in $(ls $source/podman-remote*); do
$publisher $f
done
while IFS= read -r cmd; do
file="podman-${cmd// /-}"
# Source dir may have man (.1) files (linux/darwin) or .1.md (windows)
# but the links subdir will always be .1 (man) files
if [ -f $source/$file.$ext -o -f $source/links/$file.1 ]; then
$publisher $(echo $source/$file.$ext)
else
# This is worth failing CI for
fail "no doc file nor link $source/$file.$ext for 'podman $cmd'"
fi
done <<< "$(podman_all_commands)"
}
## sed syntax is different on darwin and linux
## sed --help fails on mac, meaning we have to use mac syntax
function sed_os(){
if sed --help > /dev/null 2>&1 ; then
$(sed -i "$@")
else
$(sed -i "" "$@")
fi
}
## rename renames podman-remote.ext to podman.ext, and fixes up contents to reflect change
function rename (){
if [[ "$PLATFORM" != linux ]]; then
local remote=$(echo $TARGET/podman-remote.*)
local ext=${remote##*.}
mv $remote $TARGET/podman.$ext
sed_os "s/podman\\\*-remote/podman/g" $TARGET/podman.$ext
sed_os "s/A\ remote\ CLI\ for\ Podman\:\ //g" $TARGET/podman.$ext
case $PLATFORM in
darwin|linux)
sed_os "s/Podman\\\*-remote/Podman\ for\ Mac/g" $TARGET/podman.$ext
;;
windows)
sed_os "s/Podman\\\*-remote/Podman\ for\ Windows/g" $TARGET/podman.$ext
;;
esac
fi
}
## walk the SOURCES for markdown sources
mkdir -p $TARGET
for s in $SOURCES; do
if [[ -d $s ]]; then
pub_pages $s $PUBLISHER
else
echo >&2 "Warning: $s does not exist"
fi
done
rename
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