[PATCH] Fixing --help, usage for *-id

[Pavel Roskin <proski@gnu.org>]

Hello!

Removal of cg-Xlib inclusion in *-id scripts broke "--help" switch.
When cg-Xlib is sourced indirectly through cg-Xnormid, the help text is
treated like an ID, and its last word is dropped.

Lack of USAGE string in the *-id scripts breaks the documentation
generation because empty synopsis causes invalid XML.  Thus the USAGE
strings should be provided.

Signed-off-by: Pavel Roskin <proski@gnu.org>

diff --git a/cg-commit-id b/cg-commit-id
--- a/cg-commit-id
+++ b/cg-commit-id
@@ -5,6 +5,10 @@
 #
 # Takes the appropriate ID, defaults to HEAD.
 
+USAGE="cg-commit-id"
+
+. ${COGITO_LIB}cg-Xlib
+
 id="$1"
 normid=$(. ${COGITO_LIB}cg-Xnormid "$id") || exit 1
 type=${normid#* }
diff --git a/cg-parent-id b/cg-parent-id
--- a/cg-parent-id
+++ b/cg-parent-id
@@ -7,5 +7,9 @@
 #
 # NOTE: Will return multiple SHA1s if ID is a commit with multiple parents.
 
+USAGE="cg-parent-id"
+
+. ${COGITO_LIB}cg-Xlib
+
 normid=$(. ${COGITO_LIB}cg-Xnormid "$1"^)
 echo ${normid%% *}
diff --git a/cg-tree-id b/cg-tree-id
--- a/cg-tree-id
+++ b/cg-tree-id
@@ -5,6 +5,10 @@
 #
 # Takes ID of the appropriate commit, defaults to HEAD.
 
+USAGE="cg-tree-id"
+
+. ${COGITO_LIB}cg-Xlib
+
 id="$1"
 normid=$(. ${COGITO_LIB}cg-Xnormid "$id") || exit 1
 type=${normid#* }


-- 
Regards,
Pavel Roskin