# 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).