Changeset e0bbc6e for BLFS/libs/func_dependencies

Timestamp:

12/19/2021 04:30:10 PM (3 years ago)

Author:

Pierre Labastie <pierre.labastie@…>

Branches:

ablfs-more, legacy, trunk

Children:

a78cfc9

Parents:

bbabe74

git-author:

Pierre Labastie <pierre.labastie@…> (12/19/2021 01:32:51 PM)

git-committer:

Pierre Labastie <pierre.labastie@…> (12/19/2021 04:30:10 PM)

Message:

Document some variables in func_dependencies

Better document the $seen global variable used in path_to,
also at places where "path_to" is called.
Document p and b flags in the loop over "after" deps.
Document lr variable in the loop over "first" deps.

File:

• BLFS/libs/func_dependencies (modified) (3 diffs)

BLFS/libs/func_dependencies

@@ -221 +221 @@
                       $3 contains the weight above which we do not want to
                          follow an edge
-                      "seen" (global) contains the list of already seen nodes
+                      $seen (global) contains the list of already seen nodes.
+                         It must ve set to " " prior to calling the function
     returns:    0 if the node has been found
                 1 if not
@@ -302 +303 @@
   echo Process "runtime" deps in $node
   if ! [ -e ${node%.dep}groupxx.dep ]; then
-    b=0
+    b=0 # Nothing depends on <node>groupxx
     for parent in $(grep -l ${node%.dep}\$ *); do
-      p=0
+      p=0 # No "after" dependency depends on this parent
       for start in $(grep ' a ' $node | cut -d' ' -f3); do
-        seen=" "
+        seen=" " # global variable used in "path_to"
         if path_to ${start}.dep ${parent%.dep} 3; then p=1; break; fi
       done
@@ -341 +342 @@
       fi
       lines_to_change="$lines_to_change $id_of_dep"
-      unset lr
+      unset lr  # lines to remove in -pass1
       {
       while read p b start; do
-        seen=" "
+        seen=" " # global variable used in "path_to"
         if path_to ${start}.dep ${node%.dep} $p; then
           lr="$lr $start"