gitattributes: introduce and use "generated" attribute

keszybz · keszybz · commit 1d9a1215e8b0 · 2021-10-18T09:42:55.000+02:00
I want to mark some files to be ignored for licensing purposes,
e.g. output from fuzzers and other samples. By using the gitattribute
machinery for this we don't need to design a custom protocol:

$ git check-attr generated test/test-sysusers/unhappy-*
test/test-sysusers/unhappy-1.expected-err: generated: set
test/test-sysusers/unhappy-1.input: generated: unspecified
test/test-sysusers/unhappy-2.expected-err: generated: set
test/test-sysusers/unhappy-2.input: generated: unspecified
test/test-sysusers/unhappy-3.expected-err: generated: set
test/test-sysusers/unhappy-3.input: generated: unspecified
diff --git a/.gitattributes b/.gitattributes
@@ -1,3 +1,11 @@
 *.[ch] whitespace=tab-in-indent,trailing-space
-*.gpg  binary
+*.gpg  binary generated
 *.bmp  binary
+
+# Mark files as "generated", i.e. no license applies to them.
+# This includes output from programs, directive lists generated by grepping
+# for all possibilities, samples from fuzzers, files from /proc, packet samples,
+# and anything else where no copyright can be asserted.
+#
+# Use 'git check-attr generated -- <path>' to query the attribute.
+[attr]generated
diff --git a/po/.gitattributes b/po/.gitattributes
@@ -0,0 +1 @@
+/LINGUAS  generated
diff --git a/test/dmidecode-dumps/.gitattributes b/test/dmidecode-dumps/.gitattributes
@@ -1 +1 @@
-/*.bin binary
+/*.bin binary generated
diff --git a/test/fuzz/.gitattributes b/test/fuzz/.gitattributes
@@ -5,3 +5,4 @@
 /fuzz-fido-id-desc/ binary
 /fuzz-lldp-rx/*     binary
 /fuzz-ndisc-rs/*    binary
+/*/*                generated
diff --git a/test/journal-data/.gitattributes b/test/journal-data/.gitattributes
@@ -1,2 +1,2 @@
 # Journal data in export format
-/*.txt  binary
+/*.txt  binary generated
diff --git a/test/test-network-generator-conversion/.gitattributes b/test/test-network-generator-conversion/.gitattributes
@@ -0,0 +1 @@
+*  generated
diff --git a/test/test-network/.gitattributes b/test/test-network/.gitattributes
@@ -0,0 +1 @@
+/conf/*.key  generated
diff --git a/test/test-resolve/.gitattributes b/test/test-resolve/.gitattributes
@@ -1 +1 @@
-/*.pkts  binary
+/*.pkts  binary generated
diff --git a/test/test-sysusers/.gitattributes b/test/test-sysusers/.gitattributes
@@ -0,0 +1,2 @@
+/*.initial*   generated
+/*.expected*  generated
diff --git a/test/test-umount/.gitattributes b/test/test-umount/.gitattributes
@@ -0,0 +1 @@
+*  generated

Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-/*.bin binary`
	`1`	`+/*.bin binary generated`
Original file line number	Diff line number	Diff line change
`@@ -1,2 +1,2 @@`
`1`	`1`	`# Journal data in export format`
`2`		`-/*.txt binary`
	`2`	`+/*.txt binary generated`
Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-/*.pkts binary`
	`1`	`+/*.pkts binary generated`
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	`+/.initial generated`
	`2`	`+/.expected generated`