Changeset 42727

Timestamp:

Oct 24, 2024, 12:25:37 PM (21 months ago)

Author:

tdeboer

Message:

facilitate building of compress.mgc file for IPP-2201

Location:

tags/ipp-ops-20220906/ippconfig

Files:

• Makefile.am (modified) (1 diff)
• configure.ac (modified) (1 diff)
• gpc1/camera.config (modified) (1 diff)
• notes.txt (modified) (1 diff)

tags/ipp-ops-20220906/ippconfig/Makefile.am

@@ -62 +62 @@
 ipprc.config: $(srcdir)/ipprc.config.in
 dvo.site: $(srcdir)/dvo.site.in
+
+
+TGTDIR  = $(PSCONFDIR)/$(PSCONFIG)/etc
+SRC     =       compress
+TGT     =       $(TGTDIR)/compress.mgc
+
+install: $(TGT)
+build:   $(MGC)
+
+if HAVE_LINUX
+MES = YesLINUX
+MGC = compress.mgc
+else
+MES = StillNoLINUX
+MGC = gentoo
+endif
+
+$(TGT): $(MGC)
+        cp $(MGC) $(TGT)     
+
+test: $(TGT)
+        file o60523g0045o.2132764.wrp.2688740.skycell.1566.004.pswarp.mdc
+        file -m $(TGT) o60523g0045o.2132764.wrp.2688740.skycell.1566.004.pswarp.mdc
+
+prt: 
+        @echo $(MES)

tags/ipp-ops-20220906/ippconfig/configure.ac

@@ -6 +6 @@
 AM_INIT_AUTOMAKE([1.6 foreign dist-bzip2])
 AM_MAINTAINER_MODE
+
+AM_CONDITIONAL([HAVE_GENTOO], [test -f /etc/gentoo-release])
+AM_CONDITIONAL([HAVE_LINUX], [test -f /etc/os-release])
 
 AC_PROG_INSTALL

tags/ipp-ops-20220906/ippconfig/gpc1/camera.config

@@ -5 +5 @@
         MEF             STR     gpc1/format_mef.config
         RELPHOT         STR     gpc1/format_relphot.config
-        RAW_20220827    STR     gpc1/format_20220827.config
         RAW_20100723    STR     gpc1/format_20100723.config
         RAW_20100228    STR     gpc1/format_20100228.config

tags/ipp-ops-20220906/ippconfig/notes.txt

@@ -1 +1 @@
 
-creating a new camera:
+This is the home web page for the file command:
 
-* add the camera to the CAMERAS list (ipp/ippconfig/ipprc.config)
-* create the camera directory (ipp/ippconfig/CAMERA)
-* copy example recipe files from a similar camera (eg, ipp/ippconfig/megacam)
-* copy Makefile.am from a similar camera (eg, ipp/ippconfig/megacam)
-* edit camera.config to describe your camera
-  - list the ccds and chips in FPA METADATA
-  - list the filters of interest (header name STR internal name)
-    give all varients used in the headers
-  - fix paths which refer to the original paths.
-* edit the format*.config files to match your camera:
-  - set up a rule to recognize the camera
-    - define keywords which will uniquely recognize your headers
-     
+  https://www.darwinsys.com/file/
+
+Here is their github page.
+
+  https://github.com/file/file/tree/master/magic/Magdir
+
+I used this tool to download just the Magdir directory:
+
+  https://download-directory.github.io/
+
+For reasons unknown, several of the files in that directory raise errors when compiling
+the magic file.  Running this command generates a list of errors:
+
+  file -m Magdir -C
+
+I remove the files listed in the error messages:
+
+ mkdir -p trash
+ rsync -auv Magdir/ myMagdir/
+ foreach f ( `file -m myMagdir -C | & awk -F, '{print $1}' | sort | uniq | grep myMagdir` )
+   mv $f trash/
+ end
+
+Then compile this new directory: 
+
+  file -m myMagdir -C
+
+We can use the new magic file:
+
+  file -m myMagdir.mgc o60523g0045o.2132764.wrp.2688740.skycell.1566.004.pswarp.mdc
+
+Fortuitously, the "DOS/MBR boot sector" magic numbers are among these files which
+do not compile, specifically in Magdir/filesystems
+
+The new magic file (myMagdir.mgc) is rather large: 5.3MB.  
+
+Within the IPP, we use the command 'file' in order to distinguish compressed MDC files
+from uncompressed files.  For this purpose, we only need a magic file built using the
+file Magdir/compress:
+
+  cp myMagdir/compress .
+  file -m compress -C
+
+This yields 'compress.mgc'
+
+Unfortunately, the same magic file cannot be used by the binaries on both Ubuntu and Gentoo.
+
+So, to address the specific IPP issue, we need to install a different version of the
+file in some discoverable / defined location which depends on the build architecture.
+