124 lines
3.0 KiB
Nix
124 lines
3.0 KiB
Nix
{ pkgs, ... }:
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with import <stockholm/lib>;
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{
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# TODO irc-announce should return a derivation
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# but it cannot because krebs.git.repos.*.hooks :: attrsOf str
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irc-announce =
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{ cgit_endpoint ? "http://cgit.${nick}.r"
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, channel
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, nick
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, port ? 6667
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, refs ? []
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, server
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, tls ? false
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, verbose ? false
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}: /* sh */ ''
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#! /bin/sh
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set -euf
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export PATH=${makeBinPath (with pkgs; [
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coreutils
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git
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gnugrep
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gnused
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])}
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green() { printf '\x0303,99%s\x0F' "$1"; }
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red() { printf '\x0304,99%s\x0F' "$1"; }
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orange() { printf '\x0307,99%s\x0F' "$1"; }
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pink() { printf '\x0313,99%s\x0F' "$1"; }
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gray() { printf '\x0314,99%s\x0F' "$1"; }
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unset message
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add_message() {
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message="''${message+$message
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}$*"
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}
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nick=${escapeShellArg nick}
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channel=${escapeShellArg channel}
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server=${escapeShellArg server}
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tls=${escapeShellArg tls}
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port=${toString port}
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host=$nick
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empty=0000000000000000000000000000000000000000
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while read oldrev newrev ref; do
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if [ $oldrev = $empty ]; then
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receive_mode=create
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elif [ $newrev = $empty ]; then
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receive_mode=delete
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elif [ "$(git merge-base $oldrev $newrev)" = $oldrev ]; then
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receive_mode=fast-forward
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else
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receive_mode=non-fast-forward
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fi
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${optionalString (refs != []) ''
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if ! { echo "$ref" | grep -qE "${concatStringsSep "|" refs}"; }; then
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echo "we are not announcing this ref: $h"
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exit 0
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fi
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''}
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h=$(echo $ref | sed 's:^refs/heads/::')
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# empty_tree=$(git hash-object -t tree /dev/null)
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empty_tree=4b825dc6
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id=$(echo $newrev | cut -b-7)
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id2=$(echo $oldrev | cut -b-7)
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if [ $newrev = $empty ]; then id=$empty_tree; fi
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if [ $oldrev = $empty ]; then id2=$empty_tree; fi
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${if cgit_endpoint != null then /* sh */ ''
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cgit_endpoint=${escapeShellArg cgit_endpoint}
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case $receive_mode in
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create)
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link="$cgit_endpoint/$GIT_SSH_REPO/?h=$h"
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;;
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delete)
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link="$cgit_endpoint/$GIT_SSH_REPO/ ($h)"
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;;
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fast-forward|non-fast-forward)
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link="$cgit_endpoint/$GIT_SSH_REPO/diff/?h=$h&id=$id&id2=$id2"
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;;
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esac
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'' else /* sh */ ''
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link="$GIT_SSH_REPO $h"
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''}
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#$host $GIT_SSH_REPO $ref $link
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add_message $(pink push) $link $(gray "($receive_mode)")
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${optionalString verbose /* sh */ ''
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add_message "$(
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git log \
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--format="$(orange %h) %s $(gray '(%ar)')" \
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--reverse \
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$id2..$id
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git diff --stat $id2..$id \
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| sed '$!s/\(+*\)\(-*\)$/'$(green '\1')$(red '\2')'/'
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)"
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''}
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done
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if test -n "''${message-}"; then
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exec ${pkgs.irc-announce}/bin/irc-announce \
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"$server" \
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"$port" \
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"$nick" \
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"$channel" \
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"tls" \
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"$message"
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fi
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'';
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}
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