From 61d75021c8a1180d2b591e70c783bd2eb21188bd Mon Sep 17 00:00:00 2001
From: Erik K <erikk@previousplan.org>
Date: Thu, 26 May 2022 16:31:27 +0000
Subject: mkdir parent directories when needed, also fixed bug in list().

---
 Makefile |  2 +-
 posts.c  | 10 ++++++++--
 rss.c    | 10 +++++++++-
 skull.c  |  2 ++
 sm.c     |  2 ++
 sm.conf  | 10 +++++-----
 util.c   | 24 ++++++++++++++++++++++++
 util.h   |  1 +
 8 files changed, 52 insertions(+), 9 deletions(-)

diff --git a/Makefile b/Makefile
index 2dd9aca..9c221a9 100644
--- a/Makefile
+++ b/Makefile
@@ -10,7 +10,7 @@ sm: ${OBJ}
 
 ${OBJ}: config.h plugins.h
 
-plugins.h: ${PLUGINS}
+plugins.h: config.mk
 	printf '%s\n' ${PLUGINS:.c=} | awk -f genplugin.awk
 
 install:
diff --git a/posts.c b/posts.c
index 239f118..04535b9 100644
--- a/posts.c
+++ b/posts.c
@@ -1,4 +1,5 @@
-#include <stdlib.h>
+#include <errno.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
@@ -71,7 +72,12 @@ href=\"mailto:erikk@previousplan.org\">erikk@previousplan.org</a> \
 
 	qsort(doc, ndoc, sizeof(*doc), (int (*)(const void *, const void *))creatcompar);
 
-	outf = xfopen(kpostsexport, "w");
+	if (!mkparentdirs(kpostsexport))
+		return;
+	if ((outf = fopen(kpostsexport, "w")) == NULL) {
+		fprintf(stderr, "%s: %s\n", kpostsexport, strerror(errno));
+		return;
+	}
 	xfputs(header, outf);
 	for (i = 0; i < ndoc; i++) {
 		my_strlcpy(title, doc[i]->title, sizeof(title));
diff --git a/rss.c b/rss.c
index e0f22fe..b175441 100644
--- a/rss.c
+++ b/rss.c
@@ -1,4 +1,7 @@
+#include <errno.h>
+#include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
 #include "config.h"
 #include "sm.h"
@@ -61,7 +64,12 @@ rssexport(Document **doc, int ndoc)
 
 	qsort(doc, ndoc, sizeof(*doc), (int (*)(const void *, const void *))creatcompar);
 
-	outf = xfopen(krssexport, "w");
+	if (!mkparentdirs(krssexport))
+		return;
+	if ((outf = fopen(krssexport, "w")) == NULL) {
+		fprintf(stderr, "%s: %s\n", krssexport, strerror(errno));
+		return;
+	}
 	for (j = 0; j < LEN(header); j++)
 		xfputs(header[j], outf);
 	for (i = 0; i < ndoc; i++) {
diff --git a/skull.c b/skull.c
index 5c44f20..4c66833 100644
--- a/skull.c
+++ b/skull.c
@@ -64,6 +64,8 @@ href=\"mailto:erikk@previousplan.org\">erikk@previousplan.org</a> \
 		snprintf(path, sizeof(path), "%s/%s", kcontentdir, doc[i]->filename);
 		snprintf(outpath, sizeof(outpath), "%s/%s", kskullexport, doc[i]->filename);
 
+		if (!mkparentdirs(outpath))
+			continue;
 		if ((outf = fopen(outpath, "w")) == NULL) {
 			fprintf(stderr, "%s: %s\n", outpath, strerror(errno));
 			continue;
diff --git a/sm.c b/sm.c
index 59e286e..d45ac85 100644
--- a/sm.c
+++ b/sm.c
@@ -339,6 +339,7 @@ edit(const char *filename)
 		return 0;
 	}
 	snprintf(path, sizeof(path), "%s/%s", kcontentdir, filename);
+	mkparentdirs(path);
 	switch ((pid = fork())) {
 	case -1:
 		fprintf(stderr, "fork: %s\n", strerror(errno));
@@ -362,6 +363,7 @@ list(const char *filename)
 
 	plugstats[0] = '[';
 	plugstats[NPLUGINS+1] = ']';
+	plugstats[NPLUGINS+2] = '\0';
 	if (filename) {
 		snprintf(path, sizeof(path), "%s/%s", kcontentdir, filename);
 		cat(path, stdout);
diff --git a/sm.conf b/sm.conf
index 63a1352..a6c0946 100644
--- a/sm.conf
+++ b/sm.conf
@@ -1,12 +1,12 @@
-DbLoc ~/sites/sm/previousplan.org.tsv
-ContentDir ~/sites/sm/previousplan.org
+DbLoc sm.tsv
+ContentDir content
 LinkPreset https://previousplan.org/%
 Autoedit True
 Autoexport True
 
-SkullExport ~/sites/previousplan.org
+SkullExport export
 RssTitle Previous Plan!
 RssDescription Previous Plan! Blog
 RssLink https://previousplan.org/rss.xml
-RssExport ~/sites/previousplan.org/rss.xml
-PostsExport ~/sites/previousplan.org/posts.html
+RssExport export/rss.xml
+PostsExport export/posts.html
diff --git a/util.c b/util.c
index 3f4f51d..50a7116 100644
--- a/util.c
+++ b/util.c
@@ -1,3 +1,5 @@
+#include <sys/stat.h>
+
 #include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -65,6 +67,28 @@ xrealloc(void *ptr, size_t size)
 	return n;
 }
 
+int
+mkparentdirs(const char *path)
+{
+	char part[512];
+	int i;
+
+	if (!path[0])
+		return 0;
+	my_strlcpy(part, path, sizeof(part));
+	for (i = 1; part[i]; i++) {
+		if (part[i] == '/' && part[i + 1] != '/' && part[i + 1]) {
+			part[i] = '\0';
+			if (mkdir(part, 0755) < 0 && errno != EEXIST) {
+				fprintf(stderr, "mkdir %s: %s\n", part, strerror(errno));
+				return 0;
+			}
+			part[i] = '/';
+		}
+	}
+	return 1;
+}
+
 /* strlcpy is unportable, and strncpy is a mess. So we define our own strlcpy
  * instead. */
 size_t
diff --git a/util.h b/util.h
index e1e49e7..eb74034 100644
--- a/util.h
+++ b/util.h
@@ -6,4 +6,5 @@ FILE *xfopen(const char *, const char *);
 int xfputs(const char *, FILE *);
 void *xmalloc(size_t);
 void *xrealloc(void *, size_t);
+int mkparentdirs(const char *);
 size_t my_strlcpy(char *, const char *, size_t);
-- 
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