-
Notifications
You must be signed in to change notification settings - Fork 9
/
gh-md-toc
executable file
·224 lines (200 loc) · 6.1 KB
/
gh-md-toc
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
#!/usr/bin/env bash
#
# Steps:
#
# 1. Download corresponding html file for some README.md:
# curl -s $1
#
# 2. Discard rows where no substring 'user-content-' (github's markup):
# awk '/user-content-/ { ...
#
# 3.1 Get last number in each row like ' ... </span></a>sitemap.js</h1'.
# It's a level of the current header:
# substr($0, length($0), 1)
#
# 3.2 Get level from 3.1 and insert corresponding number of spaces before '*':
# sprintf("%*s", substr($0, length($0), 1)*3, " ")
#
# 4. Find head's text and insert it inside "* [ ... ]":
# substr($0, match($0, /a>.*<\/h/)+2, RLENGTH-5)
#
# 5. Find anchor and insert it inside "(...)":
# substr($0, match($0, "href=\"[^\"]+?\" ")+6, RLENGTH-8)
#
gh_toc_version="0.5.0"
gh_user_agent="gh-md-toc v$gh_toc_version"
#
# Download rendered into html README.md by its url.
#
#
gh_toc_load() {
local gh_url=$1
if type curl &>/dev/null; then
curl --user-agent "$gh_user_agent" -s "$gh_url"
elif type wget &>/dev/null; then
wget --user-agent="$gh_user_agent" -qO- "$gh_url"
else
echo "Please, install 'curl' or 'wget' and try again."
exit 1
fi
}
#
# Converts local md file into html by GitHub
#
# ➥ curl -X POST --data '{"text": "Hello world github/linguist#1 **cool**, and #1!"}' https://api.github.com/markdown
# <p>Hello world github/linguist#1 <strong>cool</strong>, and #1!</p>'"
gh_toc_md2html() {
local gh_file_md=$1
URL=https://api.github.com/markdown/raw
TOKEN="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/token.txt"
if [ -f "$TOKEN" ]; then
URL="$URL?access_token=$(cat $TOKEN)"
fi
curl -s --user-agent "$gh_user_agent" \
--data-binary @"$gh_file_md" -H "Content-Type:text/plain" \
$URL
}
#
# Is passed string url
#
gh_is_url() {
case $1 in
https* | http*)
echo "yes";;
*)
echo "no";;
esac
}
#
# TOC generator
#
gh_toc(){
local gh_src=$1
local gh_src_copy=$1
local gh_ttl_docs=$2
local need_replace=$3
if [ "$gh_src" = "" ]; then
echo "Please, enter URL or local path for a README.md"
exit 1
fi
# Show "TOC" string only if working with one document
if [ "$gh_ttl_docs" = "1" ]; then
echo "Table of Contents"
echo "================="
echo ""
gh_src_copy=""
fi
if [ "$(gh_is_url "$gh_src")" == "yes" ]; then
gh_toc_load "$gh_src" | gh_toc_grab "$gh_src_copy"
if [ "$need_replace" = "yes" ]; then
echo
echo "!! '$gh_src' is not a local file"
echo "!! Can't insert the TOC into it."
echo
fi
else
local toc=`gh_toc_md2html "$gh_src" | gh_toc_grab "$gh_src_copy"`
echo "$toc"
if [ "$need_replace" = "yes" ]; then
local ts="<\!--ts-->"
local te="<\!--te-->"
local dt=`date +'%F_%H%M%S'`
local ext=".orig.${dt}"
local toc_path="${gh_src}.toc.${dt}"
local toc_footer="<!-- Added by: `whoami`, at: `date --iso-8601='minutes'` -->"
# http://fahdshariff.blogspot.ru/2012/12/sed-mutli-line-replacement-between-two.html
# clear old TOC
sed -i${ext} "/${ts}/,/${te}/{//!d}" "$gh_src"
# create toc file
echo "${toc}" > "${toc_path}"
echo -e "\n${toc_footer}\n" >> "$toc_path"
# insert toc file
sed -i "/${ts}/r ${toc_path}" "$gh_src"
echo
echo "!! TOC was added into: '$gh_src'"
echo "!! Origin version of the file: '${gh_src}${ext}'"
echo "!! TOC added into a separate file: '${toc_path}'"
echo
fi
fi
}
#
# Grabber of the TOC from rendered html
#
# $1 — a source url of document.
# It's need if TOC is generated for multiple documents.
#
gh_toc_grab() {
# if closed <h[1-6]> is on the new line, then move it on the prev line
# for example:
# was: The command <code>foo1</code>
# </h1>
# became: The command <code>foo1</code></h1>
sed -e ':a' -e 'N' -e '$!ba' -e 's/\n<\/h/<\/h/g' |
# find strings that corresponds to template
grep -E -o '<a.*id="user-content-[^"]*".*</h[1-6]' |
# remove code tags
sed 's/<code>//' | sed 's/<\/code>//' |
# now all rows are like:
# <a id="user-content-..." href="..."><span ...></span></a> ... </h1
# format result line
# * $0 — whole string
echo -e "$(awk -v "gh_url=$1" '{
print sprintf("%*s", substr($0, length($0), 1)*3, " ") "* [" substr($0, match($0, /a>.*<\/h/)+2, RLENGTH-5)"](" gh_url substr($0, match($0, "href=\"[^\"]+?\" ")+6, RLENGTH-8) ")"}' | sed 'y/+/ /; s/%/\\x/g')"
}
#
# Returns filename only from full path or url
#
gh_toc_get_filename() {
echo "${1##*/}"
}
#
# Options hendlers
#
gh_toc_app() {
local app_name="gh-md-toc"
local need_replace="no"
if [ "$1" = '--help' ] || [ $# -eq 0 ] ; then
echo "GitHub TOC generator ($app_name): $gh_toc_version"
echo ""
echo "Usage:"
echo " $app_name [--insert] src [src] Create TOC for a README file (url or local path)"
echo " $app_name - Create TOC for markdown from STDIN"
echo " $app_name --help Show help"
echo " $app_name --version Show version"
return
fi
if [ "$1" = '--version' ]; then
echo "$gh_toc_version"
return
fi
if [ "$1" = "-" ]; then
if [ -z "$TMPDIR" ]; then
TMPDIR="/tmp"
elif [ -n "$TMPDIR" -a ! -d "$TMPDIR" ]; then
mkdir -p "$TMPDIR"
fi
local gh_tmp_md
gh_tmp_md=$(mktemp $TMPDIR/tmp.XXXXXX)
while read input; do
echo "$input" >> "$gh_tmp_md"
done
gh_toc_md2html "$gh_tmp_md" | gh_toc_grab ""
return
fi
if [ "$1" = '--insert' ]; then
need_replace="yes"
shift
fi
for md in "$@"
do
echo ""
gh_toc "$md" "$#" "$need_replace"
done
echo ""
echo "Created by [gh-md-toc](https://github.com/ekalinin/github-markdown-toc)"
}
#
# Entry point
#
gh_toc_app "$@"