Merge commit '6bc502434737d7f08379e79b94fc6fda424ef779'

[shellwiki] / macros / revisions

diff --git a/macros/revisions b/macros/revisions
index 4271149cffbd8074d89f16d88418b26f5f842441..33b4b4ba1623c01fd734eb567458f03b38f55442 100755 (executable)
--- a/macros/revisions
+++ b/macros/revisions
@@ -1,19 +1,65 @@
 #!/bin/sh
 
+# Copyright 2022 - 2023 Paul Hänsch
+# 
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+# 
+# THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+# SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+# IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
 . "$_EXEC/cgilite/cgilite.sh"
 . "$_EXEC/tools.sh"
 . "$_EXEC/acl.sh"
 
-page="$1"
+_(){ printf %s\\n "$*"; }
+[ "${LANGUAGE}" -a -r "${_EXEC}/l10n/${LANGUAGE}.sh" ] && . "${_EXEC}/l10n/${LANGUAGE}.sh"
+
+LIST=true DIFF=
+while [ $# -gt 0 ]; do case $1 in
+  --list)
+    LIST=true
+    shift 1
+    ;;
+  --no-list)
+    LIST=
+    shift 1
+    ;;
+  --diff)
+    DIFF=true
+    shift 1
+    ;;
+  --no-diff)
+    DIFF=
+    shift 1
+    ;;
+  *)page="$1"
+    shift 1
+    ;;
+esac; done
+
 page_abs="$(page_abs "$page")"
+page_default="${page_abs%:*/}" 
 
 if ! acl_read "$page_abs"; then
   return 0
-elif [ "$REV_PAGES" != true ]; then
-  printf '<div class="macro revisions error">GIT is not available to handle revisioning.</div>'
 fi
 
-printf '<ul class="macro revisions">\n'
+printf '<div class="macro revisions">\n'
+
+if [ "$REV_PAGES" != true ]; then
+  printf '<div class="error">%s</div>' "$(_ GIT is not available to handle revisioning.)"
+  exit 1
+fi
+
+if [ "$LIST" = true ]; then
+  printf '<ul>\n'
   IFS="        "
   { git -C "$_DATA" log --date=format:"%a, %x %H:%M" \
                       --pretty=format:"%h      %cd     %s" \
@@ -24,4 +70,26 @@ printf '<ul class="macro revisions">\n'
     printf '<li><span class="hash"><a href="%s">%s</a></span><span class="date">%s</span><span class="user">%s</span></li>\n' \
       "$(HTML "${page%/}/[revision]/$hash")" "$(HTML "$hash")" "$(HTML "$date")" "$(HTML "$user")"
   done
-printf '</ul>\n'
+  printf '</ul>\n'
+fi
+
+if [ "$DIFF" = true -a "$LANGUAGE_DEFAULT" -a "$page_default" != "$page_abs" ]; then
+  commit="$(git -C "$_DATA" log --pretty=format:%H -- "pages${page_abs}#page.md" |head -n1)"
+  printf '<section class="diff"><h2>%s</h2>' "$(_ 'Latest changes to the original language page')"
+  git -C "$_DATA" diff -U3 "$commit" -- "pages${page_default}#page.md" |tail -n+5 \
+  | while read -r diff; do case $diff in
+    @@\ *\ @@*)
+        line="${diff#@@ * @@}"
+        num="${diff%"${line}"}"
+        printf '<span class="linenum">%s</span>\n' "$(HTML "$num")"
+        printf '<span class="line">%s</span>\n' "$(HTML "$line")"
+        ;;
+    -*) printf '<span class="linedel">%s</span>\n' "$(HTML "$diff")";;
+    +*) printf '<span class="lineadd">%s</span>\n' "$(HTML "$diff")";;
+    \ *) printf '<span class="line">%s</span>\n' "$(HTML "$diff")";;
+    \\\ *) printf '<span class="linenote">%s</span>\n' "$(HTML "$diff")";;
+  esac; done
+  printf '</section>'
+fi
+
+printf '</div>\n'