Lady’s Gitweb - Git/blob - post-receive

   1 #!/usr/bin/env -S sh
   2 # SPDX-FileCopyrightText: 2024 Lady <https://www.ladys.computer/about/#lady>
   3 # SPDX-License-Identifier: MPL-2.0
   4
   5 # This Source Code Form is subject to the terms of the Mozilla Public License, v 2.0.
   6 # If a copy of the M·P·L was not distributed with this file, You can obtain one at <https://mozilla.org/MPL/2.0/>.
   7
   8 IGNORE_PATTERN='README\..*|LICENSES/.*|post-receive'
   9 LIVE_BRANCH=live
  10
  11 if grep -q " refs/heads/$LIVE_BRANCH"
  12 then
  13         # Live branch was updated; copy resulting files.
  14         #
  15         # This isn’t super robust; if there is a failure partway thru then
  16         # some files will be old and some will be new.
  17         hashfiles=$(git ls-tree -rz "$LIVE_BRANCH" | tr '\000\t' '\n;' | sed 's/^[^ ]* [^ ]* //')
  18         files=$(printf '%s' "$hashfiles" | sed 's|.*;|/var/www/gitweb/|')
  19         existings=$(find /var/www/gitweb -type f)
  20
  21         echo '`'"$LIVE_BRANCH"'´ was updated; updating files…'
  22
  23         while test -n "$hashfiles"
  24         do
  25                 # Iterate over each file and extract it into the appropriate
  26                 # location.
  27                 hashfile=$(printf '%s' "$hashfiles" | head -n 1)
  28                 hash=$(printf '%s\n' "$hashfile" | sed 's/;.*//')
  29                 file=$(printf '%s\n' "$hashfile" | sed 's|.*;|/var/www/gitweb/|')
  30                 dir=$(printf '%s\n' "$file" | sed 's|[^/]*$||')
  31
  32                 if test '!' -d "$dir"
  33                 then
  34                         # The containing directory does not exist yet.
  35                         mkdir -p "$dir"
  36                 fi
  37
  38                 if printf '%s\n' "$file" | grep -E -q '^/var/www/gitweb/('"$IGNORE_PATTERN"')$'
  39                 then
  40                         # The current file matches the ignore pattern.
  41                         :
  42                 else
  43                         # The current file does not match the ignore pattern.
  44                         printf 'Updating <%s>…\n' "$file"
  45                         git cat-file blob "$hash" > "$file"
  46                 fi
  47
  48                 hashfiles=$(printf '%s' "$hashfiles" | tail -n +2)
  49         done
  50
  51         while test -n "$existings"
  52         do
  53                 # Iterate over existing files and remove ones which aren’t in the
  54                 # repo.
  55                 existing=$(printf '%s' "$existings" | head -n 1)
  56                 if printf '%s' "$files" | grep -F -q -x "$existing"
  57                 then
  58                         # The file matches a file in the repo.
  59                         :
  60                 else
  61                         # The file does not match a file in the repo.
  62                         printf 'Removing <%s>…\n' "$file"
  63                         rm "$existing"
  64                 fi
  65                 existings=$(printf '%s' "$existings" | tail -n +2)
  66         done
  67 fi