Update Thursday, 22nd of January, Anno Domini MMIX, at the hour of the Dragon
[git/dscho.git] / upload.sh
blob26034701b80db6956ce6d7446f8abeb43031939d
1 #!/bin/sh
3 # This is a simple script that will produce my blog on repo.or.cz
5 # The idea is to have source-<timestamp>.txt files as input, having the
6 # stories, and this script turning them into nice HTML, committing
7 # everything, and then pushing it to my repository.
9 # The blog will then be served using gitweb.
11 # To make it easier on me, if a file "source.txt" exists, it is
12 # automatically renamed using the current timestamp.
14 # TODO: generate an RSS feed, too
15 # TODO: have a configurable maximum number of entries per page, and links
16 # to older pages
18 # make sure we're in the correct working directory
19 cd "$(dirname "$0")"
21 GITWEBURL="$(git config gitweb.url)"
22 test -z "$GITWEBURL" && {
23 echo "Please set gitweb.url in the Git config first!" >&2
24 exit 1
27 URLPREFIX="$(dirname "$GITWEBURL")"/
28 REMOTEREPOSITORY="$(basename "$GITWEBURL")"
29 BRANCH=blog
30 URL="$REMOTEREPOSITORY?a=blob_plain;hb=$BRANCH;f="
31 CSS=blog.css
32 NEW=new
33 OUTPUT=index.html
34 TEST=test.html
35 TITLE="Dscho's blog"
37 LC_ALL=C
38 export LC_ALL
40 move_new_entry_back () {
41 test -f source-$now.txt &&
42 mv source-$now.txt $NEW &&
43 git rm --cached -f source-$now.txt
46 die () {
47 move_new_entry_back
48 echo "$*" >&2
49 exit 1
52 nth () {
53 # add illogical suffix
54 case "$1" in
55 *1?|*[04-9]) echo "$1th";;
56 *1) echo "$1st";;
57 *2) echo "$1nd";;
58 *3) echo "$1rd";;
59 esac
62 make_chinese_hour () {
63 case $1 in
64 23|00) echo Rat;;
65 01|02) echo Buffalo;;
66 03|04) echo Tiger;;
67 05|06) echo Rabbit;;
68 07|08) echo Dragon;;
69 09|10) echo Snake;;
70 11|12) echo Horse;;
71 13|14) echo Goat;;
72 15|16) echo Monkey;;
73 17|18) echo Rooster;;
74 19|20) echo Dog;;
75 21|22) echo Pig;;
76 esac
79 digit_to_roman () {
80 case $1 in
81 1) echo $2;;
82 2) echo $2$2;;
83 3) echo $2$2$2;;
84 4) echo $2$3;;
85 5) echo $3;;
86 6) echo $3$2;;
87 7) echo $3$2$2;;
88 8) echo $3$2$2$2;;
89 9) echo $2$4;;
90 esac
93 make_roman_number () {
94 case $1 in
95 '') ;;
96 ?) digit_to_roman $1 I V X;;
97 ??) echo $(digit_to_roman ${1%?} X L C)$(make_roman_number ${1#?});;
98 ???) echo $(digit_to_roman ${1%??} C D M)$(make_roman_number ${1#?});;
99 ????) echo $(digit_to_roman ${1%???} M)$(make_roman_number ${1#?});;
100 esac
103 make_date () {
104 printf "%s, %s of %s, Anno Domini %s, at the hour of the %s\n" \
105 $(date +%A -d @$1) \
106 $(nth $(date +%e -d @$1)) \
107 $(date +%B -d @$1) \
108 $(make_roman_number $(date +%Y -d @$1)) \
109 $(make_chinese_hour $(date +%H -d @$1))
112 # make an argument for sed, to replace $1..$1 by <$2>..</$2>
113 markup_substitution () {
114 case "$1" in
115 ?) echo "s/$1\\([^$1]*\\)$1/<$2>\\\\1<\/$2>/g";;
117 tmp="[^${1%?}]*"
118 tmp2="\\|${1%?}[^${1#?}]$tmp"
119 tmp3="\\($tmp\\($tmp2\\($tmp2\\($tmp2\\)\\)\\)\\)"
120 echo "s/$1$tmp3$1/<$2>\\\\1<\/$2>/g"
122 esac
125 # transform markup in stdin to HTML
126 markup () {
127 image_pattern="\\[\\[Image:\([^]]*\)"
128 image_pattern2="$image_pattern\(\\|[^\]]*\)\?\]\]"
129 sed -e 's!^$!</p><p>!' \
130 -e 's!IMHO!in my humble opinion!g' \
131 -e 's!BTW!By the way,!g' \
132 -e 's!repo.or.cz!<a href=http://&>&</a>!g' \
133 -e 's!:-)!\&#x263a;!g' \
134 -e "s!$image_pattern2!<center><img src=$URL\1></center>!g" \
135 -e "$(markup_substitution "''" i)" \
136 -e "$(markup_substitution "_" u)"
139 # make HTML page
140 make_html () {
141 cat << EOF
142 <html>
143 <head>
144 <title>$TITLE</title>
145 <meta http-equiv="Content-Type"
146 content="text/html; charset=UTF-8"/>
147 <link rel="stylesheet" type="text/css" href="$URL$CSS">
148 </head>
149 <body>
150 <div class=content>
151 <h1>$TITLE</h1>
154 # make toc
155 toc_width=400px
156 toc_style="position:absolute;top:50px;left:810px;width=$toc_width"
157 echo "<div style=\"$toc_style\">"
158 echo "<table width=$toc_width bgcolor=#e0e0e0 border=1><tr><td>"
159 echo '<p><ol>'
160 for file in $(ls -r source-*.txt)
162 basename=${file%.txt}
163 timestamp=${basename#source-}
164 date="$(date +"%d %b %Y" -d @$timestamp)"
165 title="$(sed 1q < $file | markup)"
166 echo "<li><a href=#$timestamp>$date $title</a>"
167 done
168 echo '</td></tr></table>'
169 echo '</ol></p>'
170 echo '</div>'
173 # timestamps will not need padding to sort correctly, for some time...
174 for file in $(ls -r source-*.txt)
176 basename=${file%.txt}
177 timestamp=${basename#source-}
178 echo "<h6>$(make_date $timestamp)</h6>"
179 echo "<a name=$timestamp>"
180 echo "<h2>$(sed 1q < $file | markup)</h2>"
181 echo ""
182 echo "<p>"
183 sed 1d < $file | markup
184 echo "</p>"
185 done |
186 sed -e 's/^./\t\t\t&/'
188 cat << EOF
189 </div>
190 </body>
191 </html>
195 # never, ever have spaces in the file names
196 commit_new_images () {
197 images=
198 for image in $(cat source-* |
199 tr ' ]|' '\n' |
200 sed -n 's/.*\[\[Image://p' |
201 sort |
202 uniq)
204 git add $image || die "Could not git add image $image"
205 images="$images $image"
206 done
208 git update-index --refresh &&
209 git diff --cached --quiet HEAD ||
210 git commit -s -m "Commit some images on $(make_date $now)" $images
214 # parse command line option
215 case "$1" in
216 *dry*) DRYRUN=1; shift;;
217 *show*) firefox "$(pwd)"/$TEST; exit;;
218 *remote*) firefox $URLPREFIX$URL$OUTPUT; exit;;
219 esac
221 test "$#" = 0 ||
222 die "Usage: $0 [--dry-run]"
224 # make sure we're on the correct branch
225 test refs/heads/$BRANCH = $(git symbolic-ref HEAD) ||
226 die "Not on branch $BRANCH"
228 # make sure there are no uncommitted changes
229 git update-index --refresh &&
230 git diff-files --quiet &&
231 git diff-index --quiet --cached HEAD ||
232 die "Have uncommitted changes!"
234 # rename the new blog entry if it exists
235 now=$(date +%s)
236 test ! -f $NEW || {
237 mv -i $NEW source-$now.txt &&
238 git add source-$now.txt
239 } ||
240 die "Could not rename source.txt"
242 # commit the images that are referenced and not yet committed
243 test ! -z "$DRYRUN" ||
244 commit_new_images ||
245 die "Could not commit new images"
247 # to find the images reliably, we have to use the commit name, not the branch
248 URL="$REMOTEREPOSITORY?a=blob_plain;hb=$(git rev-parse --verify $BRANCH);f="
250 # Rewrite the URL in the .css file if we're not running dry
251 if test -z "$DRYRUN"
252 then
253 # rewrite URLs
254 sed -e "s/url(/&$URL/g" < $CSS.in > $CSS &&
255 git add $CSS ||
256 die "Rewriting $CSS failed"
257 else
258 OUTPUT=$TEST
259 CSS=$CSS.in
260 URL=
263 make_html > $OUTPUT || die "Could not write $OUTPUT"
265 test ! -z "$DRYRUN" && {
266 move_new_entry_back
267 exit
270 git add $OUTPUT &&
271 git commit -s -m "Update $(make_date $now)" &&
272 git push origin +$BRANCH