chriswarbo-net: a2e7195fb52b9271fd758f8f45a3a9d5cb45b9b9

     1: #!/usr/bin/env bash
     2: set   -e
     3: set   -o pipefail
     4: shopt -s nullglob
     5: 
     6: if command -v ts > /dev/null && ts | grep queued | grep render > /dev/null
     7: then
     8:     echo "Another render is queued, deferring to that"
     9:     exit 0
    10: fi
    11: 
    12: # We use a lot of recursion, which can overflow the stack, so try increasing it
    13: ulimit -s 100000 || true
    14: 
    15: function build() {
    16:     echo "Building '$1'" 1>&2
    17:     nix-build --show-trace -A "$1" static/nix
    18: }
    19: 
    20: function check() {
    21:     ./static/checkSource 1>&2 || exit 1
    22:     build wholeSite
    23: }
    24: 
    25: function push() {
    26:     BUCKET="${BUCKET:-www.chriswarbo.net}"
    27: 
    28:     # Default to building and testing the site; override by passing a path
    29:     # explicitly (e.g. the result of './render build')
    30:     if [[ "$#" -eq 1 ]]
    31:     then
    32:         SITE="$1"
    33:     else
    34:         SITE=$(check)
    35:     fi
    36: 
    37:     # Sanity check
    38:     echo "Using '$SITE' as site root" 1>&2
    39:     for EXPECTED in index.html projects blog blog.html js css
    40:     do
    41:         [[ -e "$SITE/$EXPECTED" ]] || {
    42:             echo "Given site '$SITE' does not contain '$EXPECTED', aborting"
    43:             exit 1
    44:         } 1>&2
    45:     done
    46: 
    47:     local args
    48:     # These speed up syncing with S3 (fewer roundtrips, etc.)
    49:     args=(--fast-list --no-update-modtime --checksum)
    50: 
    51:     # Exclude the /git folder from the sync: without this, sync will try to
    52:     # delete all of the /git/foo folders that exist in S3.
    53:     args+=(--filter '- /git/')
    54: 
    55:     # Our Nix result is full of symlinks, which must be dereferenced
    56:     args+=(-L)
    57: 
    58:     echo "Syncing '$SITE' with '$BUCKET'" 1>&2
    59:     RCLONE_S3_REGION=eu-west-1 RCLONE_S3_PROVIDER=AWS  RCLONE_S3_ENV_AUTH=true \
    60:       with-aws-creds \
    61:         rclone sync "${args[@]}" "$SITE" ":s3:$BUCKET"
    62: 
    63:     # Temporary workaround (as of 2023-07-03...) to redirect chriswarbo.net/git
    64:     # requests to github.com/warbo. We want /git/foo.git to be redirected, but
    65:     # not /git/foo (the human-readable HTML interfaces): to achieve that effect,
    66:     # we just redirect all 404s, so existing objects (like /git/foo) will be
    67:     # served, but non-existing objects (like /git/foo.git, among others) will be
    68:     # redirected.
    69:     # NOTE: We don't use S3's object-based redirects (which use metadata), since
    70:     # those emit 301 PERMANENT redirects, and we want 302 TEMPORARY redirects.
    71:     CONFIG='{
    72:         "IndexDocument": {
    73:             "Suffix": "index.html"
    74:         },
    75:         "RoutingRules": [
    76:             {
    77:                 "Condition": {
    78:                     "KeyPrefixEquals": "git/",
    79:                     "HttpErrorCodeReturnedEquals": "404"
    80:                 },
    81:                 "Redirect": {
    82:                     "HostName": "github.com",
    83:                     "ReplaceKeyPrefixWith": "warbo/"
    84:                 }
    85:             }
    86:         ]
    87:     }'
    88: 
    89:     echo "Redirecting 404s in /git to github.com/warbo" 1>&2
    90:     with-aws-creds aws s3api put-bucket-website \
    91:         --bucket "$BUCKET" \
    92:         --website-configuration "$CONFIG"
    93: }
    94: 
    95: printf "Waiting for rendering lock..." 1>&2
    96: (
    97:   flock -x 200
    98:   echo "lock aquired" 1>&2
    99: 
   100:   case "$1" in
   101:       page)
   102:           shift
   103:           build "$@"
   104:           ;;
   105: 
   106:       build)
   107:           build untestedSite
   108:           ;;
   109: 
   110:       test)
   111:           check
   112:           ;;
   113: 
   114:       push)
   115:           shift
   116:           push "$@"
   117:           ;;
   118: 
   119:       *)
   120:           echo "
   121: Usage: $0 <build|test|push|page>
   122: 
   123: build: Builds the HTML, CSS, etc. of the site. Outputs a directory containing
   124:        the result.
   125: 
   126: test: Builds the site and runs tests on the result. Outputs a directory
   127:       containing the result.
   128: 
   129: push: Push a given site directory to chriswarbo.net. If no argument is given,
   130:       defaults to using the output of 'test'.
   131: 
   132: page: Build a given attribute of the site, e.g. a page or directory. Requires an
   133:       argument, which is passed to nix-build's -A option.
   134:           " 1>&2
   135:           exit 1
   136:           ;;
   137:   esac
   138: ) 200>/tmp/blog.lock