cScm Configuration Daemon

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+
+# cScm Configuration Daemon
+
+**cScm** Configuration Daemon – is a tool to convert SCM configuration files into binary format and store its in shared memory
+for reading by **cSvn-ui** and **cGit-ui** CGI scripts.
+
+
+## Reqired packages
+
+**cScm** daemon depends on [libpcre2-32](https://www.pcre.org/) library. ArchLinux distribution has the **pcre2** binary package.
+On RPM based systems you can find somethink like **pcre2-devel** RPM.
+
+
+## Installation
+
+The **cScm** package provides a regular Linux daemon with control scripts.
+
+
+### Download Sources
+
+To obtain sources we have to checkout its from SVN repository:
+
+```Bash
+svn checkout svn://radix.pro/cscm/tags/cscm-0.1.4 cscm-0.1.4
+```
+and run the bootstrap script:
+
+```Bash
+cd csvn-0.1.4
+./bootstrap
+```
+Also **cScm** source packages are available for download on the
+[Radix.pro FTP-server](https://ftp.radix.pro/pub/cscm/).
+
+
+#### Bootstrap Script
+
+The *bootstrap* script especialy created for *Autotools* install automation. To install
+*Autotools* into sourse directory on build machine (i.e. when **build** == **host**) the *bootstrap*
+script can be run without arguments.
+
+```Bash
+./bootstrap
+```
+
+I this case *Autotools* will be installed from current root file system.
+
+For the cross environment the `--target-dest-dir` option allows to install some stuff from
+development root file system:
+
+```Bash
+TARGET_DEST_DIR=/home/developer/prog/trunk-672/dist/.s9xx-glibc/enybox-x2 \
+       ./bootstrap --target-dest-dir=${TARGET_DEST_DIR}
+```
+
+For example, in this case the *aclocal.m4* script will be collected from the
+`${TARGET_DEST_DIR}/usr/share/aclocal` directory.
+
+
+### Configuring Sources
+
+```Bash
+./configure --prefix=/usr \
+            --sysconfdir=/etc \
+            --with-controldir=/etc/rc.d \
+            --with-logrotatedir=/etc/logrotate.d \
+            --with-homepath=/var/lib \
+            --with-logdir=/var/log \
+            --with-piddir=/var/run
+```
+
+
+#### Install on the Build Machine
+
+```Bash
+make
+make install
+```
+
+
+#### Cross Compilation Example
+
+```Bash
+#!/bin/sh
+
+TARGET_DEST_DIR=/home/developer/prog/trunk-672/dist/.s9xx-glibc/enybox-x2
+TOOLCHAIN_PATH=/opt/toolchains/aarch64-S9XX-linux-glibc/1.1.4/bin
+TARGET=aarch64-s9xx-linux-gnu
+
+./bootstrap --target-dest-dir=${TARGET_DEST_DIR}
+
+PKG_CONFIG=/usr/bin/pkg-config \
+PKG_CONFIG_PATH=${TARGET_DEST_DIR}/usr/lib${LIBDIRSUFFIX}/pkgconfig:${TARGET_DEST_DIR}/usr/share/pkgconfig \
+PKG_CONFIG_LIBDIR=${TARGET_DEST_DIR}/usr/lib${LIBDIRSUFFIX}/pkgconfig:${TARGET_DEST_DIR}/usr/share/pkgconfig \
+STRIP="${TOOLCHAIN_PATH}/${TARGET}-strip" \
+CC="${TOOLCHAIN_PATH}/${TARGET}-gcc --sysroot=${TARGET_DEST_DIR}" \
+./configure --prefix=/usr
+  --build=x86_64-pc-linux-gnu \
+  --host=${TARGET} \
+  --sysconfdir=/etc \
+  --with-controldir=/etc/rc.d \
+  --with-logrotatedir=/etc/logrotate.d \
+  --with-homepath=/var/lib \
+  --with-logdir=/var/log \
+  --with-piddir=/var/run
+
+make
+make install DESTDIR=${TARGET_DEST_DIR}
+```
+
+Also we can make use of additional variables such as `CFLAGS`, `LDFLAGS`:
+
+```Bash
+LDFLAGS="-L${TARGET_DEST_DIR}/lib -L${TARGET_DEST_DIR}/usr/lib"
+TARGET_INCPATH="-L${TARGET_DEST_DIR}/usr/include"
+CFLAGS="${TARGET_INCPATH}"
+CPPFLAGS="${TARGET_INCPATH}"
+```
+
+### Post Install
+
+To run **cScm** daemon for some SCM engine we have to make control scripts executable:
+
+```Bash
+chmod a+x /etc/rc.d/rc.csvnd
+chmod a+x /etc/rc.d/rc.cgitd
+```
+
+If you want to run the **cscmd** daemons on boot time then on systems with BSD-like initialization such as **Slackware** we have
+to add following lines to the */etc/rc.d/rc.M* and */etc/rc.d/rc.6* scripts correspondengly:
+
+**/etc/rc.d/rc.M:**
+
+```Bash
+# Start cSvn SCM daemon:
+if [ -x /etc/rc.d/rc.csvnd ]; then
+  /etc/rc.d/rc.csvnd start
+fi
+
+# Start cGit SCM daemon:
+if [ -x /etc/rc.d/rc.cgitd ]; then
+  /etc/rc.d/rc.cgitd start
+fi
+```
+
+**/etc/rc.d/rc.6:**
+
+```Bash
+# Stop cSvn SCM daemon:
+if [ -x /etc/rc.d/rc.csvnd ]; then
+  /etc/rc.d/rc.csvnd stop
+fi
+
+# Stop cGit SCM daemon:
+if [ -x /etc/rc.d/rc.cgitd ]; then
+  /etc/rc.d/rc.cgitd stop
+fi
+```
+
+For systems which uses systemd initialization you have to setup your own systemd unit like following:
+
+**/etc/systemd/system/csvnd.service:**
+
+```ini
+[Unit]
+Description=The cSvn daemon
+After=network.target
+
+[Service]
+PIDFile=/var/run/csvnd.pid
+ExecStart=/usr/sbin/cscmd --daemonize --inotify --scm=svn --pid=/var/run/csvnd.pid --log=/var/log/csvnd.log --config=/etc/csvn-ui.rc
+ExecReload=/bin/kill -s HUP $MAINPID
+ExecStop=/bin/kill -s TERM $MAINPID
+
+[Install]
+WantedBy=multi-user.target
+```
+
+**/etc/systemd/system/cgitd.service:**
+
+```ini
+[Unit]
+Description=The cGit daemon
+After=network.target
+
+[Service]
+PIDFile=/var/run/cgitd.pid
+ExecStart=/usr/sbin/cscmd --daemonize --inotify --scm=git --pid=/var/run/cgitd.pid --log=/var/log/cgitd.log --config=/etc/cgit-ui.rc
+ExecReload=/bin/kill -s HUP $MAINPID
+ExecStop=/bin/kill -s TERM $MAINPID
+
+[Install]
+WantedBy=multi-user.target
+```
+
+
+## Binary Packages
+
+The instructions to build binary packages for popular Linux distributions are present in the
+[**Documentation**](https://csvn.radix.pro/cscm/trunk/doc/) directory where you can find **RPM** **spec** file and also
+**ArchLinux** Package Build script.
+
+
+## See Also
+
+> [**cscmd(8)**](https://csvn.radix.pro/cscm/trunk/doc/cscmd.8.md), 
+> [**csvn-ui.rc(5)**](https://csvn.radix.pro/csvn-ui/trunk/doc/csvn-ui.rc.5.md), 
+> [**cgit-ui.rc(5)**](https://csvn.radix.pro/cgit-ui/trunk/doc/cgit-ui.rc.5.md).
+
+
+## Copyright and License
+
+&#169; Andrey V. Kosteltsev, 2019 &#8211; 2022.<br/>
+Code and documentation released under [the **Radix.pro** License](https://csvn.radix.pro/cscm/trunk/LICENSE).