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-rwxr-xr-xcontrib/cpt-export16
1 files changed, 16 insertions, 0 deletions
diff --git a/contrib/cpt-export b/contrib/cpt-export
index d0ce36a..0e7495b 100755
--- a/contrib/cpt-export
+++ b/contrib/cpt-export
@@ -1,6 +1,17 @@
#!/bin/sh -ef
# Turn an installed package into a CPT tarball
+## SYNOPSIS:
+## .Nm
+## .Op Ar pkg
+
+## DESCRIPTION:
+## .Nm
+## creates a package tarball of an installed package using the system files
+## declared on the package's manifest. If no package name is given,
+## .Nm
+## will use the name of the current directory as the package.
+
case "$1" in
--help|-h)
printf 'usage: %s [pkg]\n' "${0##*/}"
@@ -15,6 +26,11 @@ cpt-list "${1:-null}" >/dev/null
read -r ver rel 2>/dev/null < \
"$CPT_ROOT/var/db/cpt/installed/$1/version"
+### Environment variables:
+### The compression method can be changed while creating a tarball, using the
+### .Ev CPT_COMPRESS
+### environment variable.
+
# Fallback to gzip if there is a typo
case "$CPT_COMPRESS" in bz2|gz|xz|zst) ;; *) CPT_COMPRESS=gz; esac