X-Git-Url: https://gitweb.ps.run/ps-cgit/blobdiff_plain/b522a302c9c4fb9fd9e1ea829ee990afc74980ca..adcc4f822fe11836e5f942fc1ae0f00db4eb8d5f:/cgitrc.5.txt

diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index 6f008cc..33a6a8c 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -407,9 +407,12 @@ side-by-side-diffs::
 snapshots::
 	Text which specifies the default set of snapshot formats that cgit
 	generates links for. The value is a space-separated list of zero or
-	more of the values "tar", "tar.gz", "tar.bz2", "tar.xz" and "zip".
-	The special value "all" enables all snapshot formats.
-	Default value: none.
+	more of the values "tar", "tar.gz", "tar.bz2", "tar.lz", "tar.xz",
+	"tar.zst" and "zip". The special value "all" enables all snapshot
+	formats. Default value: none.
+	All compressors use default settings. Some settings can be influenced
+	with environment variables, for example set ZSTD_CLEVEL=10 in web
+	server environment for higher (but slower) zstd compression.
 
 source-filter::
 	Specifies a command which will be invoked to format plaintext blobs
@@ -485,6 +488,10 @@ repo.email-filter::
 	Override the default email-filter. Default value: none. See also:
 	"enable-filter-overrides". See also: "FILTER API".
 
+repo.enable-blame::
+	A flag which can be used to disable the global setting
+	`enable-blame'. Default value: none.
+
 repo.enable-commit-graph::
 	A flag which can be used to disable the global setting
 	`enable-commit-graph'. Default value: none.
@@ -759,7 +766,7 @@ the environment variables defined in "FILTER API":
 
 
 CACHE
-------
+-----
 
 All cache ttl values are in minutes. Negative ttl values indicate that a page
 type will never expire, and thus the first time a URL is accessed, the result
@@ -767,6 +774,33 @@ will be cached indefinitely, even if the underlying git repository changes.
 Conversely, when a ttl value is zero, the cache is disabled for that
 particular page type, and the page type is never cached.
 
+SIGNATURES
+----------
+
+Cgit can host .asc signatures corresponding to various snapshot formats,
+through use of git notes. For example, the following command may be used to
+add a signature to a .tar.xz archive:
+
+    git notes --ref=refs/notes/signatures/tar.xz add -C "$(
+	gpg --output - --armor --detach-sign cgit-1.1.tar.xz |
+	git hash-object -w --stdin
+    )" v1.1
+
+If it is instead desirable to attach a signature of the underlying .tar, this
+will be linked, as a special case, beside a .tar.* link that does not have its
+own signature. For example, a signature of a tarball of the latest tag might
+be added with a similar command:
+
+    tag="$(git describe --abbrev=0)"
+    git notes --ref=refs/notes/signatures/tar add -C "$(
+        git archive --format tar --prefix "cgit-${tag#v}/" "$tag" |
+        gpg --output - --armor --detach-sign |
+        git hash-object -w --stdin
+    )" "$tag"
+
+Since git-archive(1) is expected to produce stable output between versions,
+this allows one to generate a long-term signature of the contents of a given
+tag.
 
 EXAMPLE CGITRC FILE
 -------------------