Pre Commit Script for console logs

pre-commit.md

#!/bin/sh
#
# An example hook script to verify what is about to be committed.
# Called by git-commit with no arguments.  The hook should
# exit with non-zero status after issuing an appropriate message if
# it wants to stop the commit.
#
# To enable this hook, make this file executable.

# This is slightly modified from Andrew Morton's Perfect Patch.
# Lines you introduce should not have trailing whitespace.
# Also check for an indentation that has SP before a TAB.

if git-rev-parse --verify HEAD 2>/dev/null
then
    git-diff-index -p -M --cached HEAD --
else
    # NEEDSWORK: we should produce a diff with an empty tree here
    # if we want to do the same verification for the initial import.
    :
fi |
perl -e '
    my $found_bad = 0;
    my $filename;
    my $reported_filename = "";
    my $lineno;
    sub bad_line {
    my ($why, $line) = @_;
    if (!$found_bad) {
        print STDERR "*\n";
        print STDERR "* You have some suspicious patch lines:\n";
        print STDERR "*\n";
        $found_bad = 1;
    }
    if ($reported_filename ne $filename) {
        print STDERR "* In $filename\n";
        $reported_filename = $filename;
    }
    print STDERR "* $why (line $lineno)\n";
    print STDERR "$filename:$lineno:$line\n";
    }

$last_line = "";
    while (<>) {
    if (m|^diff --git a/(.*) b/\1$|) {
        $filename = $1;
        next;
    }
    if (/^@@ -\S+ \+(\d+)/) {
        $lineno = $1 - 1;
        next;
    }
if (/^ |\+/) {
    if(($last_line . $_) =~ m/,[\s+]*}/) {
      bad_line("trailing comma", $last_line . $_);
    } $last_line = $_;
}
    if (/^ /) {
        $lineno++;
        next;
    }
    if (s/^\+//) {
        $lineno++;
        chomp;
        if (/\s$/) {
        bad_line("trailing whitespace", $_);
        }
        if (/^\s* \t/) {
        bad_line("indent SP followed by a TAB", $_);
        }
        if (/^([<>])\1{6} |^={7}$/) {
        bad_line("unresolved merge conflict", $_);
        }
        if (/ruby-debug/) {
        bad_line("debugger breakpoint left in", $_);
        }
        if(/debugger/){
        bad_line("debugger breakpoint left in", $_);
        }
        if (/console\.log/) {
        bad_line("console logging left in", $_);
        }
    }
    }
    exit($found_bad);
'