mirror of
https://github.com/sbrl/bin.git
synced 2018-01-10 21:33:46 +00:00
Merge branch 'master' of github.com:sbrl/bin
This commit is contained in:
Starbeamrainbowlabs
commit
b2c141276b
1 changed files with 94 additions and 86 deletions
180
tldr
180
tldr
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@ -1,12 +1,13 @@
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#!/bin/bash
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#!/usr/bin/env bash
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set +vx -o pipefail
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[[ $- = *i* ]] && echo "Don't source this script!" && return 1
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version='0.32'
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# tldr-bash-client version 0.32
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version='0.36'
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# tldr-bash-client version 0.36
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# Bash client for tldr: community driven man-by-example
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# - forked from Ray Lee, http://github.com/raylee/tldr
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# - modified and expanded by pepa65: http://github.com/pepa65/tldr-bash-client
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# Requiring: coreutils, less, grep, unzip, curl/wget
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# - forked from Ray Lee, https://github.com/raylee/tldr
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# - modified and expanded by pepa65: https://github.com/pepa65/tldr-bash-client
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# - binary download: http://4e4.win/tldr
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# Requiring: coreutils, grep, unzip, curl/wget, less (optional)
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# The 5 elements in TLDR markup that can be styled with these colors and
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# backgrounds (last one specified will be used) and modes (more can apply):
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@ -40,29 +41,34 @@ version='0.32'
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# Alternative location of pages cache
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: "${TLDR_CACHE:= }"
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# Usage of 'less' or 'cat' for output (set to '0' for cat)
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: "${TLDR_LESS:= }"
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## Function definitions
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# $1: [optional] exit code; Uses: version cachedir
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Usage(){
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Out "$(cat <<-EOF
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$HHE $version
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$HHE$version
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$HDE USAGE: $HHE$(basename "$0")$XHHE [${HOP}option$XHOP] [${HPL}platform$XHPL/]${HCO}command$XHCO
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$HDEUSAGE: $HHE$(basename "$0")$XHHE [${HOP}option$XHOP] [${HPL}platform$XHPL/]${HCO}command$XHCO
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$HDE [${HPL}platform$XHPL/]${HCO}command$XHCO: Show page for$HCO command$XHCO (from$HPL platform$XHPL)
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$HDE[${HPL}platform$XHPL/]${HCO}command$XHCO: Show page for ${HCO}command$XHCO (from ${HPL}platform$XHPL)
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$HPL platform$XHPL is optionally one of:$HPL common$XHPL,$HPL linux$XHPL,$HPL osx$XHPL,$HPL sunos$XHPL
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${HPL}platform$XHPL (optional) one of: ${HPL}common$XHPL, ${HPL}linux$XHPL, ${HPL}osx$XHPL, ${HPL}sunos$XHPL, ${HPL}current$XHPL (includes common)
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$HOP option$XHOP is optionally one of:
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$HOP-l$XHOP,$HOP --list$XHOP [${HPL}platform$XHPL]: Show all available pages (from$HPL platform$XHPL)
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$HOP-r$XHOP,$HOP --render$XHOP ${HFI}file$XHFI: Render a local$HFI file$XHFI as tldr markdown
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$HOP-m$XHOP,$HOP --markdown$XHOP ${HCO}command$XHCO: Show the markdown source for$HCO command$XHCO
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$HOP-c$XHOP,$HOP --cache$XHOP: Cache all pages by downloading archive from repo
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$HOP-u$XHOP,$HOP --update$XHOP: Re-download index file from repo
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$HOP-v$XHOP,$HOP --version$XHOP: Version number and repo location
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$HDE[$HOP-h$XHOP,$HOP -?$XHOP,$HOP --help$XHOP]: This help overview
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${HOP}option$XHOP is optionally one of:
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$HOP-l$XHOP, $HOP--list$XHOP [${HPL}platform$XHPL]: List all pages (from ${HPL}platform$XHPL)
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$HOP-a$XHOP, $HOP--list-all$XHOP: List all pages from current platform + common
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$HOP-r$XHOP, $HOP--render$XHOP ${HFI}file$XHFI: Render a local ${HFI}file$XHFI as tldr markdown
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$HOP-m$XHOP, $HOP--markdown$XHOP ${HCO}command$XHCO: Show the markdown source for ${HCO}command$XHCO
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$HOP-u$XHOP, $HOP--update$XHOP: Update the pages cache by downloading repo archive
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$HOP-v$XHOP, $HOP--version$XHOP: Version number and local repo location
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$HDE[$HOP-h$XHOP, $HOP-?$XHOP, $HOP--help$XHOP]: This help overview
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$HDE Element styling:$XHDE$T Title$XT$D Description$XD$E Example$XD$C Code$XC$V Value$XV
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$HDE All pages and the index are cached locally under $HUR$cachedir$XHUR.
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$HDE By default, the cached copies will be freshly downloaded after $HUR${TLDR_EXPIRY// /}$XHUR days.
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${HDE}Element styling:$XHDE ${T}Title$XT ${D}Description$XD ${E}Example$XE ${C}Code$XC ${V}Value$XV
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${HDE}All pages and the index are cached locally under $HUR$cachedir$XHUR.
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${HDE}By default, the cached copies will be freshly downloaded after $HUR${TLDR_EXPIRY// /}$XHUR days.
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EOF
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)"
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exit "${1:-0}"
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@ -173,17 +179,11 @@ Init_term(){
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# $1: page
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Recent(){ find "$1" -mtime -"${TLDR_EXPIRY// /}" >/dev/null 2>&1;}
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# Download index.json; Uses: index index_url base_url zip_url dl
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Update_index(){
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$dl "$index" "$index_url" && Inf "Index file $I$index$XI freshly downloaded" || {
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Err "Could not download index from $I$index_url$XI with $dl"
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exit 2
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}
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}
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# Initialize globals, check the environment; Uses: config cachedir version
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# Sets: stdout os version dl
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Config(){
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type -p less >/dev/null || TLDR_LESS=0
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os=common stdout='' Q='"' N=$'\n'
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case "$(uname -s)" in
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Darwin) os='osx' ;;
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@ -191,21 +191,22 @@ Config(){
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SunOS) os='sunos' ;;
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esac
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Init_term
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trap 'less -~RXQFP"Browse up/down, press Q to exit " <<<"$stdout"' EXIT
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[[ $TLDR_LESS = 0 ]] &&
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trap 'cat <<<"$stdout"' EXIT ||
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trap 'less -~RXQFP"Browse up/down, press Q to exit " <<<"$stdout"' EXIT
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version="tldr-bash-client version $version $XB$URL http://github.com/pepa65/tldr-bash-client$XURL"
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version="tldr-bash-client version $version$XB ${URL}http://github.com/pepa65/tldr-bash-client$XURL"
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# Select download method
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dl="$(type -p curl) -sLfo" || {
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dl="$(type -p wget) --max-redirect=20 -qNO" || {
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Err "tldr requires$I curl$XI or$I wget $XI installed in your path"
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Err "tldr requires ${I}curl$XI or ${I}wget$XI installed in your path"
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exit 3
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}
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}
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base_url='https://raw.githubusercontent.com/tldr-pages/tldr/master/pages'
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zip_url='http://tldr-pages.github.io/assets/tldr.zip'
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index_url='http://tldr-pages.github.io/assets/index.json'
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pages_url='https://raw.githubusercontent.com/tldr-pages/tldr/master/pages'
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zip_url='http://tldr.sh/assets/tldr.zip'
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read cachedir <<<$TLDR_CACHE
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[[ $cachedir ]] || {
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@ -218,25 +219,25 @@ Config(){
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}
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index=$cachedir/index.json
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# update if the file doesn't exists, or if it's older than $TLDR_EXPIRY
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[[ -f $index ]] && Recent "$index" || Update_index
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[[ -f $index ]] && Recent "$index" || Cache_fill 0
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}
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# $1: error message; Uses: md line ln
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# $1: error message; Uses: md REPLY ln
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Unlinted(){
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Err "Page $I$md$XI not properly linted!$N${ERRSP}${ERR}Line $I$ln$XI [$XERR$U$line$XU$ERR]$N$ERRSP$ERR$1"
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Err "Page $I$md$XI not properly linted!$N${ERRSP}${ERR}Line $I$ln$XI [$XERR$U$REPLY$XU$ERR]$N$ERRSP$ERR$1"
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exit 5
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}
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# $1: page; Uses: index index_url cachedir base_url platform os dl cached md
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# $1: page; Uses: index cachedir pages_url platform os dl cached md
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# Sets: cached md
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Get_tldr(){
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local desc err notfound
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# convert the local platform name to tldr's version
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# extract the platform key from index.json, return preferred subpath to page
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desc=$(tr '{' '\n' <$index |grep "\"name\":\"$1\"")
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desc=$(tr '{' '\n' <"$index" |grep "\"name\":\"$1\"")
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# results in, eg, "name":"netstat","platform":["linux","osx"]},
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[[ $desc ]] || return # just not found
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[[ $desc ]] || return # nothing found
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error=0
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if [[ $platform ]]
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@ -249,7 +250,7 @@ Get_tldr(){
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}
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fi
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# if no page found yet, try the system platform
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[[ $md ]] || [[ $platform = "$os" ]] || {
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[[ $md ]] || [[ $platform = $os ]] || {
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[[ $desc =~ \"$os\" ]] && md=$os/$1.md
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} || {
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notfound+=" or $I$os$XI"
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@ -263,77 +264,84 @@ Get_tldr(){
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cached=$cachedir/$md
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Recent "$cached" || {
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mkdir -p "${cached%/*}"
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$dl "$cached" "$base_url/$md" || Err "Could not download page $I$cached$XI from index $U$index_url$XU with $dl"
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$dl "$cached" "$pages_url/$md" || Err "Could not download page $I$cached$XI with $dl"
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}
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}
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# $1: text; Uses: page stdout; Sets: ln line
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# $1: text; Uses: page stdout; Sets: ln REPLY
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Display_tldr(){
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local newfmt len val
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ln=0 line=''
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ln=0 REPLY=''
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[[ $md ]] || md=$1
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# Read full lines, and process even when no newline at the end
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while read -r line || [[ $line ]]
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while read -r || [[ $REPLY ]]
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do
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((++ln))
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((ln==1)) && {
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[[ ${line:0:1} = '#' ]] && newfmt=0 || newfmt=1
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[[ ${REPLY:0:1} = '#' ]] && newfmt=0 || newfmt=1
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((newfmt)) && {
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[[ $line ]] || Unlinted "No title"
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Out "$TNL$TSP$T$line$XT"
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len=${#line}
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read -r; ((++ln))
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[[ $line =~ [^=] ]] && Unlinted "Title underline must be equal signs"
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((len!=${#line})) && Unlinted "Underline length not equal to title's"
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read -r; ((++ln))
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[[ $REPLY ]] || Unlinted "Empty title"
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Out "$TNL$TSP$T$REPLY$XT"
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len=${#REPLY} # title length
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read -r
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((++ln))
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[[ $REPLY =~ [^=] ]] && Unlinted "Title underline must be equal signs"
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((len!=${#REPLY})) && Unlinted "Underline length not equal to title's"
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read -r
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((++ln))
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}
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}
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case "${line:0:1}" in # first character
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case "${REPLY:0:1}" in # first character
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'#') ((newfmt)) && Unlinted "Bad first character"
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((${#line} <= 2)) && Unlinted "No title"
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[[ ! ${line:1:1} = ' ' ]] && Unlinted "2nd character no space"
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Out "$TNL$TSP$T${line:2}$XT" ;;
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'>') ((${#line} <= 3)) && Unlinted "No valid desciption"
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[[ ! ${line:1:1} = ' ' ]] && Unlinted "2nd character no space"
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[[ ! ${line: -1} = '.' ]] && Unlinted "Description doesn't end in full stop"
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Out "$DNL$DSP$D${line:2}$XD"
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((${#REPLY} <= 2)) && Unlinted "No title"
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[[ ! ${REPLY:1:1} = ' ' ]] && Unlinted "2nd character no space"
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Out "$TNL$TSP$T${REPLY:2}$XT" ;;
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'>') ((${#REPLY} <= 3)) && Unlinted "No valid desciption"
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[[ ! ${REPLY:1:1} = ' ' ]] && Unlinted "2nd character no space"
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[[ ! ${REPLY: -1} = '.' ]] && Unlinted "Description doesn't end in full stop"
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Out "$DNL$DSP$D${REPLY:2}$XD"
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DNL='' ;;
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'-') ((newfmt)) && Unlinted "Bad first character"
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((${#line} <= 2)) && Unlinted "No example content"
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[[ ! ${line:1:1} = ' ' ]] && Unlinted "2nd character no space"
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Out "$ENL$ESP$E${line:2}$XE" ;;
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((${#REPLY} <= 2)) && Unlinted "No example content"
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[[ ! ${REPLY:1:1} = ' ' ]] && Unlinted "2nd character no space"
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Out "$ENL$ESP$E${REPLY:2}$XE" ;;
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' ') ((newfmt)) || Unlinted "Bad first character"
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((${#line} <= 4)) && Unlinted "No valid code content"
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[[ ${line:0:4} = ' ' ]] || Unlinted "No four spaces before code"
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val=${line:4}
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((${#REPLY} <= 4)) && Unlinted "No valid code content"
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[[ ${REPLY:0:4} = ' ' ]] || Unlinted "No four spaces before code"
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val=${REPLY:4}
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# Value: convert {{value}}
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val=${val//\{\{/$CX$V}
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val=${val//\}\}/$XV$C}
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Out "$CNL$CSP$C$val$XC" ;;
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'`') ((newfmt)) && Unlinted "Bad first character"
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((${#line} <= 2)) && Unlinted "No valid code content"
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[[ ! ${line: -1} = '`' ]] && Unlinted "Code doesn't end in backtick"
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val=${line:1:-1}
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((${#REPLY} <= 2)) && Unlinted "No valid code content"
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[[ ! ${REPLY: -1} = '`' ]] && Unlinted "Code doesn't end in backtick"
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val=${REPLY:1:${#REPLY}-2}
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# Value: convert {{value}}
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val=${val//\{\{/$CX$V}
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val=${val//\}\}/$XV$C}
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Out "$CNL$CSP$C$val$XC" ;;
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'') continue ;;
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*) ((newfmt)) || Unlinted "Bad first character"
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[[ -z $line ]] && Unlinted "No example content"
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Out "$ENL$EPS$E$line$XE" ;;
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[[ -z $REPLY ]] && Unlinted "No example content"
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Out "$ENL$ESP$E$REPLY$XE" ;;
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esac
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done <"$1"
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trap 'less -Gg -~RXQFP"%pB\% tldr $I$page$XI - browse up/down, press Q to exit" <<<"$stdout"' EXIT
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[[ $TLDR_LESS = 0 ]] &&
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trap 'cat <<<"$stdout"' EXIT ||
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trap 'less -Gg -~RXQFP"%pB\% tldr $I$page$XI - browse up/down, press Q to exit" <<<"$stdout"' EXIT
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}
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# $1: exit code; Uses: platform index
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List_pages(){
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local platformtext c1 c2 c3
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[[ $platform ]] && platformtext=" from platform $I$platform$XI"
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Inf "Known tldr pages$platformtext:"
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[[ $platform ]] && platformtext="platform $I$platform$XI" ||
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platform=^ platformtext="${I}all$XI platforms"
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[[ $platform = current ]] && platform="-e $os -e common" &&
|
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platformtext="$I$os$XI platform and ${I}common$XI"
|
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Inf "Known tldr pages from $platformtext:"
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Out "$(while read -r c1 c2 c3; do printf "%-19s %-19s %-19s %-19s$N" $c1 $c2 $c3; done \
|
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<<<$(tr '{' '\n' <$index |grep "$platform" |cut -d "$Q" -f4))"
|
||||
<<<$(tr '{' '\n' <"$index" |grep $platform |cut -d "$Q" -f4))"
|
||||
exit "$1"
|
||||
}
|
||||
|
||||
|
|
@ -370,28 +378,28 @@ Main(){
|
|||
case "$1" in
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-l|--list) [[ $2 ]] && {
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||||
platform=$2
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||||
[[ ,common,linux,osx,sunos, = *,$platform,* ]] || {
|
||||
[[ ,common,linux,osx,sunos,current, = *,$platform,* ]] || {
|
||||
Err "Unknown platform $I$platform$XI"
|
||||
Usage 9
|
||||
}
|
||||
[[ $3 ]] && Err "$nomore" && err=10
|
||||
}
|
||||
List_pages "$err" ;;
|
||||
-c|--cache) [[ $2 ]] && Err "$nomore" && err=11
|
||||
-a|--list-all) [[ $2 ]] && Err "$nomore" && err=11
|
||||
platform=current
|
||||
List_pages $err ;;
|
||||
-u|--update) [[ $2 ]] && Err "$nomore" && err=12
|
||||
Cache_fill "$err" ;;
|
||||
-v|--version) [[ $2 ]] && Err "$nomore" && err=12
|
||||
-v|--version) [[ $2 ]] && Err "$nomore" && err=13
|
||||
Inf "$version"
|
||||
exit "$err" ;;
|
||||
-u|--update) [[ $2 ]] && Err "$nomore" && err=13
|
||||
Update_index
|
||||
exit "$err" ;;
|
||||
-r|--render) [[ -z $2 ]] && Err "Specify a file to render" && Usage 14
|
||||
[[ $3 ]] && Err "$nomore" && err=15
|
||||
[[ -f "$2" ]] && {
|
||||
Display_tldr "$2" && exit "$err"
|
||||
Err "A file error occured"
|
||||
exit 16
|
||||
} || Err "No file:$I $2$XI" && exit 17 ;;
|
||||
} || Err "No file: ${I}$2$XI" && exit 17 ;;
|
||||
-m|--markdown) shift
|
||||
page=$*
|
||||
[[ -z $page ]] && Err "Specify a page to display" && Usage 18
|
||||
|
|
@ -404,7 +412,7 @@ Main(){
|
|||
esac
|
||||
|
||||
[[ -z $page ]] && Err "No command specified" && Usage 21
|
||||
[[ $page =~ ' -' || ${page:0:1} = '-' ]] && Err "Only one option allowed" && Usage 22
|
||||
[[ ${page:0:1} = '-' || $page = *' '-* ]] && Err "Only one option allowed" && Usage 22
|
||||
[[ $page = */* ]] && platform=${page%/*} && page=${page##*/}
|
||||
[[ $platform && ,common,linux,osx,sunos, != *,$platform,* ]] && {
|
||||
Err "Unknown platform $I$platform$XI"
|
||||
|
|
@ -413,7 +421,7 @@ Main(){
|
|||
|
||||
Get_tldr "${page// /-}"
|
||||
[[ ! -s $cached ]] && Err "tldr page for command $I$page$XI not found" \
|
||||
&& Inf "Contribute new pages at:$XB$URL https://github.com/tldr-pages/tldr$XURL" && exit 24
|
||||
&& Inf "Contribute new pages at:$XB ${URL}https://github.com/tldr-pages/tldr$XURL" && exit 24
|
||||
((markdown)) && Out "$(cat "$cached")" || Display_tldr "$cached"
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue