Re: [PATCH 3/5] util: file: Simplify logic of shortuct cases in virFindFileInPath

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On Thu, Nov 14, 2019 at 11:43:31AM +0100, Peter Krempa wrote:
Combine the terms in the two sets of nested conditionals an don't reuse
a variable for a more obvious control flow.

Signed-off-by: Peter Krempa <pkrempa@xxxxxxxxxx>
---
src/util/virfile.c | 16 ++++++----------
1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/src/util/virfile.c b/src/util/virfile.c
index 072a299b39..c077639c1c 100644
--- a/src/util/virfile.c
+++ b/src/util/virfile.c
@@ -1644,20 +1644,16 @@ virFindFileInPath(const char *file)
    /* if we are passed an absolute path (starting with /), return a
     * copy of that path, after validating that it is executable
     */
-    if (IS_ABSOLUTE_FILE_NAME(file)) {
-        char *ret = NULL;
-        if (virFileIsExecutable(file))
-            ret = g_strdup(file);
-        return ret;
-    }
+    if (IS_ABSOLUTE_FILE_NAME(file) && virFileIsExecutable(file))
+        return g_strdup(file);

    /* If we are passed an anchored path (containing a /), then there
     * is no path search - it must exist in the current directory
     */
-    if (strchr(file, '/')) {
-        if (virFileIsExecutable(file))
-            ignore_value(virFileAbsPath(file, &path));
-        return path;
+    if (strchr(file, '/') && virFileIsExecutable(file)) {
+        char *abspath = NULL;
+        ignore_value(virFileAbsPath(file, &abspath));
+        return abspath;

Before, if either the filename was absolute, or it contained a slash,
NULL would be returned right away if the file was not executable.

After this patch, those cases will fall through to the iteration over
$PATH.

Jano

    }

    /* copy PATH env so we can tweak it */
--
2.23.0

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