+# This is file 'vc-git.awk' from the vc bundle for TeX.
+# The original file can be found at CTAN:support/vc.
+# This file is Public Domain.
+BEGIN {
+
+### Process output of "git status".
+ if (script=="status") {
+ modified = 0
+ }
+
+}
+
+
+
+### Process output of "git log".
+script=="log" && /^Hash:/ { Hash = substr($0, 2+match($0, ":")) }
+script=="log" && /^Abr. Hash:/ { AbrHash = substr($0, 2+match($0, ":")) }
+script=="log" && /^Parent Hashes:/ { ParentHashes = substr($0, 2+match($0, ":")) }
+script=="log" && /^Abr. Parent Hashes:/ { AbrParentHashes = substr($0, 2+match($0, ":")) }
+script=="log" && /^Author Name:/ { AuthorName = substr($0, 2+match($0, ":")) }
+script=="log" && /^Author Email:/ { AuthorEmail = substr($0, 2+match($0, ":")) }
+script=="log" && /^Author Date:/ { AuthorDate = substr($0, 2+match($0, ":")) }
+script=="log" && /^Committer Name:/ { CommitterName = substr($0, 2+match($0, ":")) }
+script=="log" && /^Committer Email:/ { CommitterEmail = substr($0, 2+match($0, ":")) }
+script=="log" && /^Committer Date:/ { CommitterDate = substr($0, 2+match($0, ":")) }
+
+### Process output of "git status".
+### Changed index?
+script=="status" && /^# Changes to be committed:/ { modified = 1 }
+### Unstaged modifications?
+script=="status" && /^# Changed but not updated:/ { modified = 2 }
+
+
+
+END {
+
+### Process output of "git log".
+ if (script=="log") {
+### Standard encoding is UTF-8.
+ if (Encoding == "") Encoding = "UTF-8"
+### Extract relevant information from variables.
+ LongDate = substr(AuthorDate, 1, 25)
+ DateRAW = substr(LongDate, 1, 10)
+ DateISO = DateRAW
+ DateTEX = DateISO
+ gsub("-", "/", DateTEX)
+ Time = substr(LongDate, 12, 14)
+### Write file identification to vc.tex.
+ print "%%% This file has been generated by the vc bundle for TeX."
+ print "%%% Do not edit this file!"
+ print "%%%"
+### Write Git specific macros.
+ print "%%% Define Git specific macros."
+ print "\\gdef\\GITHash{" Hash "}%"
+ print "\\gdef\\GITAbrHash{" AbrHash "}%"
+ print "\\gdef\\GITParentHashes{" ParentHashes "}%"
+ print "\\gdef\\GITAbrParentHashes{" AbrParentHashes "}%"
+ print "\\gdef\\GITAuthorName{" AuthorName "}%"
+ print "\\gdef\\GITAuthorEmail{" AuthorEmail "}%"
+ print "\\gdef\\GITAuthorDate{" AuthorDate "}%"
+ print "\\gdef\\GITCommitterName{" CommitterName "}%"
+ print "\\gdef\\GITCommitterEmail{" CommitterEmail "}%"
+ print "\\gdef\\GITCommitterDate{" CommitterDate "}%"
+### Write generic version control macros.
+ print "%%% Define generic version control macros."
+ print "\\gdef\\VCRevision{\\GITAbrHash}%"
+ print "\\gdef\\VCAuthor{\\GITAuthorName}%"
+ print "\\gdef\\VCDateRAW{" DateRAW "}%"
+ print "\\gdef\\VCDateISO{" DateISO "}%"
+ print "\\gdef\\VCDateTEX{" DateTEX "}%"
+ print "\\gdef\\VCTime{" Time "}%"
+ print "\\gdef\\VCModifiedText{\\textcolor{red}{with local modifications!}}%"
+ print "%%% Assume clean working copy."
+ print "\\gdef\\VCModified{0}%"
+ print "\\gdef\\VCRevisionMod{\\VCRevision}%"
+ }
+
+### Process output of "git status".
+ if (script=="status") {
+ print "%%% Is working copy modified?"
+ print "\\gdef\\VCModified{" modified "}%"
+ if (modified==0) {
+ print "\\gdef\\VCRevisionMod{\\VCRevision}%"
+ } else {
+ print "\\gdef\\VCRevisionMod{\\VCRevision~\\VCModifiedText}%"
+ }
+ }
+
+}