376 lines
12 KiB
Diff
376 lines
12 KiB
Diff
From e0902bd55deee738f3d6e33b8744364ef922caa2 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
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Date: Sun, 22 Dec 2013 19:45:02 -0500
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Subject: [PATCH] delta: fix delta for drop-ins
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Also, fix highlighting, add more debug statements, make const tables
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static and global, run path_kill_slashes only at entry.
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Conflicts:
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src/delta/delta.c
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---
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src/delta/delta.c | 174 +++++++++++++++++++++++++-----------------------------
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1 file changed, 79 insertions(+), 95 deletions(-)
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diff --git a/src/delta/delta.c b/src/delta/delta.c
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index fd024fc..e97f2e9 100644
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--- a/src/delta/delta.c
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+++ b/src/delta/delta.c
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@@ -33,6 +33,34 @@
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#include "build.h"
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#include "strv.h"
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+static const char prefixes[] =
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+ "/etc\0"
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+ "/run\0"
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+ "/usr/local/lib\0"
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+ "/usr/local/share\0"
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+ "/usr/lib\0"
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+ "/usr/share\0"
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+#ifdef HAVE_SPLIT_USR
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+ "/lib\0"
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+#endif
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+ ;
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+
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+static const char suffixes[] =
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+ "sysctl.d\0"
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+ "tmpfiles.d\0"
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+ "modules-load.d\0"
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+ "binfmt.d\0"
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+ "systemd/system\0"
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+ "systemd/user\0"
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+ "systemd/system-preset\0"
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+ "systemd/user-preset\0"
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+ "udev/rules.d\0"
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+ "modprobe.d\0";
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+
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+static const char have_dropins[] =
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+ "systemd/system\0"
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+ "systemd/user\0";
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+
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static bool arg_no_pager = false;
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static int arg_diff = -1;
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@@ -48,6 +76,14 @@ static enum {
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(SHOW_MASKED | SHOW_EQUIVALENT | SHOW_REDIRECTED | SHOW_OVERRIDDEN | SHOW_EXTENDED)
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} arg_flags = 0;
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+static void pager_open_if_enabled(void) {
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+
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+ if (arg_no_pager)
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+ return;
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+
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+ pager_open(false);
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+}
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+
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static int equivalent(const char *a, const char *b) {
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_cleanup_free_ char *x = NULL, *y = NULL;
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@@ -76,7 +112,7 @@ static int notify_override_equivalent(const char *top, const char *bottom) {
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return 0;
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printf("%s%s%s %s → %s\n",
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- ansi_highlight_green(), "[EQUIVALENT]", ansi_highlight(), top, bottom);
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+ ansi_highlight_green(), "[EQUIVALENT]", ansi_highlight_off(), top, bottom);
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return 1;
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}
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@@ -160,24 +196,26 @@ static int found_override(const char *top, const char *bottom) {
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}
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static int enumerate_dir_d(Hashmap *top, Hashmap *bottom, Hashmap *drops, const char *toppath, const char *drop) {
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- _cleanup_free_ char *conf = NULL;
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+ _cleanup_free_ char *unit = NULL;
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_cleanup_free_ char *path = NULL;
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_cleanup_strv_free_ char **list = NULL;
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char **file;
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char *c;
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int r;
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+ assert(!endswith(drop, "/"));
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+
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path = strjoin(toppath, "/", drop, NULL);
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if (!path)
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return -ENOMEM;
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- path_kill_slashes(path);
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+ log_debug("Looking at %s", path);
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- conf = strdup(drop);
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- if (!conf)
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+ unit = strdup(drop);
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+ if (!unit)
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return -ENOMEM;
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- c = strrchr(conf, '.');
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+ c = strrchr(unit, '.');
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if (!c)
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return -EINVAL;
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*c = 0;
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@@ -200,35 +238,21 @@ static int enumerate_dir_d(Hashmap *top, Hashmap *bottom, Hashmap *drops, const
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p = strjoin(path, "/", *file, NULL);
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if (!p)
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return -ENOMEM;
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+ d = p + strlen(toppath) + 1;
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- path_kill_slashes(p);
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-
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- d = strrchr(p, '/');
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- if (!d || d == p) {
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- free(p);
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- return -EINVAL;
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- }
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- d--;
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- d = strrchr(p, '/');
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-
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- if (!d || d == p) {
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- free(p);
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- return -EINVAL;
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- }
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-
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+ log_debug("Adding at top: %s → %s", d, p);
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k = hashmap_put(top, d, p);
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if (k >= 0) {
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p = strdup(p);
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if (!p)
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return -ENOMEM;
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- d = strrchr(p, '/');
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- d--;
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- d = strrchr(p, '/');
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+ d = p + strlen(toppath) + 1;
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} else if (k != -EEXIST) {
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free(p);
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return k;
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}
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+ log_debug("Adding at bottom: %s → %s", d, p);
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free(hashmap_remove(bottom, d));
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k = hashmap_put(bottom, d, p);
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if (k < 0) {
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@@ -236,14 +260,14 @@ static int enumerate_dir_d(Hashmap *top, Hashmap *bottom, Hashmap *drops, const
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return k;
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}
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- h = hashmap_get(drops, conf);
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+ h = hashmap_get(drops, unit);
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if (!h) {
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h = hashmap_new(string_hash_func, string_compare_func);
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if (!h)
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return -ENOMEM;
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- hashmap_put(drops, conf, h);
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- conf = strdup(conf);
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- if (!conf)
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+ hashmap_put(drops, unit, h);
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+ unit = strdup(unit);
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+ if (!unit)
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return -ENOMEM;
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}
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@@ -251,7 +275,8 @@ static int enumerate_dir_d(Hashmap *top, Hashmap *bottom, Hashmap *drops, const
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if (!p)
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return -ENOMEM;
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- k = hashmap_put(h, path_get_file_name(p), p);
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+ log_debug("Adding to drops: %s → %s → %s", unit, basename(p), p);
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+ k = hashmap_put(h, basename(p), p);
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if (k < 0) {
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free(p);
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if (k != -EEXIST)
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@@ -269,12 +294,14 @@ static int enumerate_dir(Hashmap *top, Hashmap *bottom, Hashmap *drops, const ch
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assert(drops);
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assert(path);
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+ log_debug("Looking at %s", path);
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+
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d = opendir(path);
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if (!d) {
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if (errno == ENOENT)
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return 0;
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- log_error("Failed to enumerate %s: %m", path);
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+ log_error("Failed to open %s: %m", path);
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return -errno;
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}
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@@ -285,11 +312,8 @@ static int enumerate_dir(Hashmap *top, Hashmap *bottom, Hashmap *drops, const ch
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errno = 0;
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de = readdir(d);
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- if (!de && errno != 0)
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- return -errno;
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-
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if (!de)
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- break;
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+ return -errno;
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if (dropins && de->d_type == DT_DIR && endswith(de->d_name, ".d"))
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enumerate_dir_d(top, bottom, drops, path, de->d_name);
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@@ -301,9 +325,8 @@ static int enumerate_dir(Hashmap *top, Hashmap *bottom, Hashmap *drops, const ch
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if (!p)
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return -ENOMEM;
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- path_kill_slashes(p);
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-
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- k = hashmap_put(top, path_get_file_name(p), p);
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+ log_debug("Adding at top: %s → %s", basename(p), p);
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+ k = hashmap_put(top, basename(p), p);
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if (k >= 0) {
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p = strdup(p);
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if (!p)
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@@ -313,44 +336,37 @@ static int enumerate_dir(Hashmap *top, Hashmap *bottom, Hashmap *drops, const ch
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return k;
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}
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- free(hashmap_remove(bottom, path_get_file_name(p)));
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- k = hashmap_put(bottom, path_get_file_name(p), p);
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+ log_debug("Adding at bottom: %s → %s", basename(p), p);
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+ free(hashmap_remove(bottom, basename(p)));
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+ k = hashmap_put(bottom, basename(p), p);
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if (k < 0) {
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free(p);
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return k;
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}
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}
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-
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- return 0;
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}
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-static int process_suffix(const char *prefixes, const char *suffix, bool dropins) {
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+static int process_suffix(const char *suffix) {
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const char *p;
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char *f;
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- Hashmap *top, *bottom=NULL, *drops=NULL;
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+ Hashmap *top, *bottom, *drops;
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Hashmap *h;
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char *key;
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int r = 0, k;
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Iterator i, j;
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int n_found = 0;
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+ bool dropins;
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- assert(prefixes);
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assert(suffix);
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+ assert(!startswith(suffix, "/"));
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+ assert(!strstr(suffix, "//"));
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- top = hashmap_new(string_hash_func, string_compare_func);
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- if (!top) {
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- r = -ENOMEM;
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- goto finish;
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- }
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+ dropins = nulstr_contains(have_dropins, suffix);
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+ top = hashmap_new(string_hash_func, string_compare_func);
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bottom = hashmap_new(string_hash_func, string_compare_func);
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- if (!bottom) {
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- r = -ENOMEM;
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- goto finish;
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- }
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-
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drops = hashmap_new(string_hash_func, string_compare_func);
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- if (!drops) {
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+ if (!top || !bottom || !drops) {
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r = -ENOMEM;
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goto finish;
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}
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@@ -365,10 +381,8 @@ static int process_suffix(const char *prefixes, const char *suffix, bool dropins
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}
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k = enumerate_dir(top, bottom, drops, t, dropins);
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- if (k < 0)
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+ if (r == 0)
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r = k;
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-
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- log_debug("Looking at %s", t);
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}
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HASHMAP_FOREACH_KEY(f, key, top, i) {
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@@ -409,21 +423,20 @@ finish:
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return r < 0 ? r : n_found;
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}
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-static int process_suffix_chop(const char *prefixes, const char *suffix, const char *have_dropins) {
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+static int process_suffix_chop(const char *suffix) {
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const char *p;
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- assert(prefixes);
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assert(suffix);
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if (!path_is_absolute(suffix))
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- return process_suffix(prefixes, suffix, nulstr_contains(have_dropins, suffix));
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+ return process_suffix(suffix);
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/* Strip prefix from the suffix */
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NULSTR_FOREACH(p, prefixes) {
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if (startswith(suffix, p)) {
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suffix += strlen(p);
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suffix += strspn(suffix, "/");
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- return process_suffix(prefixes, suffix, nulstr_contains(have_dropins, suffix));
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+ return process_suffix(suffix);
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}
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}
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@@ -548,35 +561,6 @@ static int parse_argv(int argc, char *argv[]) {
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}
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int main(int argc, char *argv[]) {
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-
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- const char prefixes[] =
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- "/etc\0"
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- "/run\0"
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- "/usr/local/lib\0"
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- "/usr/local/share\0"
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- "/usr/lib\0"
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- "/usr/share\0"
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-#ifdef HAVE_SPLIT_USR
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- "/lib\0"
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-#endif
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- ;
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-
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- const char suffixes[] =
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- "sysctl.d\0"
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- "tmpfiles.d\0"
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- "modules-load.d\0"
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- "binfmt.d\0"
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- "systemd/system\0"
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- "systemd/user\0"
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- "systemd/system-preset\0"
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- "systemd/user-preset\0"
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- "udev/rules.d\0"
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- "modprobe.d\0";
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-
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- const char have_dropins[] =
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- "systemd/system\0"
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- "systemd/user\0";
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-
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int r = 0, k;
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int n_found = 0;
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@@ -595,14 +579,14 @@ int main(int argc, char *argv[]) {
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else if (arg_diff)
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arg_flags |= SHOW_OVERRIDDEN;
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- if (!arg_no_pager)
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- pager_open(false);
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+ pager_open_if_enabled();
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if (optind < argc) {
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int i;
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for (i = optind; i < argc; i++) {
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- k = process_suffix_chop(prefixes, argv[i], have_dropins);
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+ path_kill_slashes(argv[i]);
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+ k = process_suffix_chop(argv[i]);
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if (k < 0)
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r = k;
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else
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@@ -613,7 +597,7 @@ int main(int argc, char *argv[]) {
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const char *n;
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NULSTR_FOREACH(n, suffixes) {
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- k = process_suffix(prefixes, n, nulstr_contains(have_dropins, n));
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+ k = process_suffix(n);
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if (k < 0)
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r = k;
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else
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